CN108753189A - A kind of multi-silane is modified insulating tape and preparation method - Google Patents
A kind of multi-silane is modified insulating tape and preparation method Download PDFInfo
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- CN108753189A CN108753189A CN201810532755.4A CN201810532755A CN108753189A CN 108753189 A CN108753189 A CN 108753189A CN 201810532755 A CN201810532755 A CN 201810532755A CN 108753189 A CN108753189 A CN 108753189A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
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- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/302—Applications of adhesives in processes or use of adhesives in the form of films or foils for bundling cables
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
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- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
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- C09J2429/00—Presence of polyvinyl alcohol
- C09J2429/006—Presence of polyvinyl alcohol in the substrate
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- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/02—Presence of polyamine or polyimide polyamine
- C09J2479/026—Presence of polyamine or polyimide polyamine in the substrate
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- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/08—Presence of polyamine or polyimide polyimide
- C09J2479/086—Presence of polyamine or polyimide polyimide in the substrate
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- C09J2483/00—Presence of polysiloxane
- C09J2483/006—Presence of polysiloxane in the substrate
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- C09J2491/00—Presence of oils, fats or waxes
- C09J2491/006—Presence of oils, fats or waxes in the substrate
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Abstract
The invention discloses a kind of multi-silanes to be modified insulating tape and preparation method, is related to communicating field of material technology；It includes following component that multi-silane, which is modified insulating tape,：Silane coupling agent, dimethylacetylamide, polyvinyl alcohol, polyvinyl chloride, active oxidation aluminium ball, polyethyleneimine, sldium lauryl sulfate, maleic anhydride, octamethylcy-clotetrasiloxane, octaphenyl-POSS, tetramethylammonium hydroxide, octyl phenyl cyclotetrasiloxane, 4,4'- diaminodiphenyl ethers, pyromellitic acid anhydride, N-Methyl pyrrolidone, calcium aluminate, butanethiol tin, methylene-bisacrylamide, chlorinated paraffin, acetum；The present invention prepares multi-silane and is modified insulating tape with thermal stability and irradiation stability, effectively raise the surface strength of insulating tape, efficient waterproof, ageing-resistant, impermeabilisation, high temperature resistance, by techniques such as base material preparation, ageings, prepare adhesive tape service life, improve the safety in utilization of adhesive tape, stability.
Description
Technical field：
The present invention relates to communication Material Fields, and in particular to a kind of multi-silane is modified insulating tape and preparation method.
Background technology：
Insulating tape refer exclusively to that electrician uses for preventing from leaking electricity, play the adhesive tape of insulating effect.Also known as insulating tape, adhesive plaster
Band is made of base band and pressure-sensitive adhesive layer.Base band generally uses cotton, synthetic fabrics and plastic film etc., and glue-line is by rubber
The compounding agents such as solvent misture are added to be made, stickiness is good, excellent insulating property.Insulating tape has good insulation pressure-resistant, fire-retardant, resistance to
Wait etc. characteristics, plug into suitable for electric wire, electric insulation, heat-insulated protection the features such as.
Directly use plastic adhesive tape disadvantage more：Plastic adhesive tape easily misplaces, comes unglued for a long time；When electric appliance load weight, connect
Hair heat, plastic adhesive tape easily melt contraction；Power connection mutually squeezes in terminal box, when connector is jagged, it is easy to stab
Plastic adhesive tape etc..These hidden danger will directly jeopardize personal safety, cause line short, cause fire.And use insulating black adhesive tape
Case above would not occur, it has certain intensity, flexibility, can tightly be entangled in joint for a long time, be influenced by time and temperature
And closely knit sizing, it will not fall off, and fire-retardant.Furthermore twining plastic adhesive tape after being wrapped up with insulating black adhesive tape again can moisture-proof, antirust.
Certainly, insulating self-adhesive band is also defective, though its water resistance is good fragile, is protected so need to finally be wrapped with 2 layers of plastic adhesive tape
The insulating self-adhesive band of layer, connector and connector does not glue mutually, and performance is more preferable.
When in use for electric wire, cable, electric appliance etc., adhesive tape can be used, it is desirable to adhesive tape has many excellent performances, this
Invention is for electric wire in use, developing a kind of multi-silane is modified insulating tape and preparation method.
Invention content：
Technical problem to be solved by the present invention lies in a kind of multi-silanes of offer to be modified insulating tape and preparation method, adhesive tape
Waterproof, ageing-resistant, impermeabilisation, high temperature resistant, insulation are suitable for cable, and electric appliance etc. ensures safety in use, extends using period
Limit can also use multi-silane to be modified insulating tape even if in extraneous adverse circumstances.
It is realized using following technical scheme using the technical problems to be solved by the invention：
A kind of multi-silane is modified insulating tape and preparation method, including specific technical solution is as follows：Multi-silane is modified insulation
Adhesive tape includes following number component：
Kh5600.1-0.3 parts of silane coupling agent, 30-40 parts of dimethylacetylamide, 3-18 parts of polyvinyl alcohol, polyvinyl chloride
25-30 parts, 5-11 parts of active oxidation aluminium ball, 2-3 parts of polyethyleneimine, 0.8-1 parts of sldium lauryl sulfate, maleic anhydride
0.7-1 parts, 5-7 parts of octamethylcy-clotetrasiloxane ,-POSS2-3 parts of octaphenyl, 0.01-0.02 parts of tetramethylammonium hydroxide, octyl
1-3 parts of phenyl cyclotetrasiloxane, 37-40 parts of 4,4'- diaminodiphenyl ethers, 46-50 parts of pyromellitic acid anhydride, N- methylpyrroles
70-80 parts of alkanone, 3-4 parts of calcium aluminate, 0.1-0.2 parts of butanethiol tin, 0.8-2 parts of methylene-bisacrylamide, chlorinated paraffin
4-6 parts, 3-8 parts of the acetum of 20-25%.
A kind of multi-silane modification insulating tape preparation method, includes the following steps：
(1) prepared by base material：
(a) 10-15% for taking octamethylcy-clotetrasiloxane weight, mixes with tetramethylammonium hydroxide, is passed through nitrogen,
Insulation reaction 2-3 hours at 90-95 DEG C, it is room temperature slowly to reduce temperature, obtains alkaline-sol；
(b) remaining octamethylcy-clotetrasiloxane, octyl phenyl ring is added in the 10-15% for taking dimethylacetylamide weight
Tetrasiloxane, octaphenyl-POSS, stir evenly, are passed through nitrogen, and above-mentioned alkaline-sol is added, in 90-95 DEG C of insulated and stirred 30-40
Minute, stopping is passed through nitrogen, keeps the temperature 2-3 hours, and it is 150-160 DEG C to increase temperature, keeps the temperature 27-30 minutes, cooling, in 60-65
It is dried in vacuo 1-2 hours at DEG C, obtains cross linking polysiloxane；
(c) 4,4'- diaminodiphenyl ethers are added in 3-4 times of its weight, 15-17% sulfuric acid solution, in addition
The acetum of 20-25% is stated, stands 1-2 hours, filtering precipitation is washed with deionized water 3-4 times, the vacuum at 60-70 DEG C
It is 4-5 hours dry, obtain refined phenylate；
(d) polyvinyl chloride is added in melting furnace and is heated to being completely melt for 160-200 DEG C, after will above-mentioned refined phenylate, equal
Pyromellitic dianhydride, cross linking polysiloxane, polyvinyl alcohol are added silane coupling agent, stir evenly, and are sent into ice-water bath,
It is passed through nitrogen, is stirred to react 2-3 hours, discharges, product is added in the distilled water of 30-40 times of its weight, room temperature stands 4-5
It, filtering obtains precrosslink polyimides polyvinyl chloride；
(e) methylene-bisacrylamide is added in the absolute ethyl alcohol of 3-5 times of its weight, it is 80-90 DEG C to increase temperature,
Chlorinated paraffin, polyethyleneimine, insulated and stirred 10-17 minutes is added, butanethiol tin is added in discharging, stirs to room temperature, obtains acyl
Amine alcohol liquid；
(f) above-mentioned precrosslink polyimides polyvinyl chloride, amide alcohol liquid are mixed, it is 50-60 DEG C to increase temperature, in addition
Dimethylacetylamide is stated, 100-200 revs/min is stirred 4-10 minutes, and silane-modified amide solution is obtained；
(g) above-mentioned active oxidation aluminium ball is added in N-Methyl pyrrolidone, it is 2-3 minutes ultrasonic, obtain alumina dispersion
Liquid；
(h) above-mentioned silane-modified amide solution is added in alumina fluid dispersion, above-mentioned sldium lauryl sulfate is added, surpassed
Sound 20-30 minutes, filtering, will be deposited at 76-80 DEG C and be dried in vacuo 3-5 hours, wear into fine powder, 250-260 DEG C of feeding it is true
It in empty drying box, heats 6-7 hours, discharging cooling obtains cross-linking modified polyimides；
(i) above-mentioned cross-linking modified polyimides is mixed with remaining each raw material, stirs evenly, is sent to screw extruder
In, melting extrusion is cooling up to the base material.
By base material placement 20-30 DEG C of room temperature carry out ageing 5-7 days, and will ageing after material heating 35-50 DEG C after material
It is added in high-pressure bottle into horizontal high voltage batch mixing, pressure is 2~3 times of atmospheric pressure, and the temperature of high pressure batch mixing is 155-180 DEG C, high pressure
The time of batch mixing is 8-10 minutes；Then be added extruder complete melting, batch mixing, extrusion process, the machine barrel of extruder includes
Four areas, from feed end to extruding end, the temperature in four areas is followed successively by 165-185 DEG C, 220-230 DEG C, 205-210 DEG C, 190-
195 DEG C, the machine cylinder pressure of the extruder is 0.06MPa；Device for full-automatic belt maker finally is added in extruded material, is made
Plastic band, tape thickness 0.1-1cm, width 0.5-10cm.
The multi-silane is modified the ageing in insulating tape preparation method step 2, is as follows：By the multi-silane
Modified insulating tape step 1 prepares base material and is aged in constant temperature oven, when to select Aging Temperature be 23-30 DEG C, digestion time 7
It, when to select Aging Temperature be 40 DEG C, digestion time is 3 days, and when select Aging Temperature be 50 DEG C, digestion time is 2 days, is selected
When Aging Temperature is 70 DEG C, digestion time is 1 day；Preferably, it is 40 DEG C to select Aging Temperature, and digestion time is 3 days, alternatively,
It is 50 DEG C to select Aging Temperature, and digestion time is 2 days, it is furthermore preferred that it is 40 DEG C to select Aging Temperature, digestion time is 3 days.
The advantages of multi-silane modification insulating tape of the present invention, is：
The present invention introduces polyimides in the strand of polyimides, to the shearing force of cross linking polysiloxane, can incite somebody to action
Polysiloxanes is dispersed into smaller particle, can be uniformly coated on the surface of polyimide particle, to form hydrophobic layer,
So as to improve its dispersing uniformity in the composite；The cross linking polysiloxane of the present invention also has good thermal stability
And irradiation stability；The present invention mixes precrosslink polyimides with aluminium nitride suspension, and the composite material of formation combines poly-
The respective advantage of acid imide and aluminium nitride has high heat conduction, low bulk, low dielectric, electrical isolation, the excellent performance such as high temperature resistant；
The present invention uses a variety of silane-modified mass, effectively raises the surface strength of insulating tape.
Multi-silane, which is modified insulating tape, has efficient waterproof, ageing-resistant, impermeabilisation, high temperature resistance, is pacified using material
Entirely, it is conveniently easy to get, and no matter adhesive tape is for outdoor electric wire hot environment, rainwater weather or indoor high temperature electric wire cable electricity
Device etc. can keep good performance, the techniques such as base material preparation, ageing are passed through in adhesive tape preparation process, extend adhesive tape
Service life, ageing-resistant, weathering etc. improves the safety in utilization of material, stability.
Specific implementation mode：
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1：
A kind of multi-silane is modified insulating tape and preparation method；
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of multi-silane is modified insulating tape and preparation method, including specific technical solution is as follows：Multi-silane is modified insulation
Adhesive tape includes following number component：
Kh5600.1 parts of silane coupling agent, 30 parts of dimethylacetylamide, 8 parts of polyvinyl alcohol, 25 parts of polyvinyl chloride, active oxygen
Change 5 parts of aluminium ball, 3 parts of polyethyleneimine, 0.8 part of sldium lauryl sulfate, 0.7 part of maleic anhydride, octamethylcy-clotetrasiloxane 5
Part ,-POSS2 parts of octaphenyl, 0.01 part of tetramethylammonium hydroxide, 1.5 parts of octyl phenyl cyclotetrasiloxane, 4,4'- diamino two
37 parts of phenylate, 46 parts of pyromellitic acid anhydride, 70 parts of N-Methyl pyrrolidone, 3 parts of calcium aluminate, 0.1 part of butanethiol tin, methylene
0.8 part of base bisacrylamide, 4 parts of chlorinated paraffin, 20% 3 parts of acetum.
A kind of multi-silane modification insulating tape preparation method, includes the following steps：
(1) prepared by base material：
(a) the 15% of octamethylcy-clotetrasiloxane weight is taken, is mixed with tetramethylammonium hydroxide, nitrogen is passed through, at 90 DEG C
Lower insulation reaction 2 hours, it is room temperature slowly to reduce temperature, obtains alkaline-sol；
(b) the 10% of dimethylacetylamide weight is taken, remaining octamethylcy-clotetrasiloxane, four silicon of octyl phenyl ring is added
Oxygen alkane, octaphenyl-POSS, stir evenly, are passed through nitrogen, and above-mentioned alkaline-sol is added, and in 90 DEG C of insulated and stirreds 30 minutes, stop logical
Enter nitrogen, keep the temperature 2 hours, it is 150 DEG C to increase temperature, keeps the temperature 27 minutes, cooling, and 1h is dried in vacuo at 60 DEG C, must be crosslinked poly-
Siloxanes；
(c) 4,4'- diaminodiphenyl ethers are added in 4 times of its weight, 15% sulfuric acid solution, are added above-mentioned 20%
Acetum, stand 1 hour, filtering, precipitation is washed with deionized water 3 times, is dried in vacuo 4 hours, obtains refined at 60 DEG C
Phenylate；
(d) polyvinyl chloride is added in melting furnace and is heated to being completely melt for 160 DEG C, after by above-mentioned refined phenylate, equal benzene four
Formic acid dianhydride, cross linking polysiloxane, polyvinyl alcohol are added silane coupling agent, stir evenly, and are sent into ice-water bath, are passed through
Nitrogen is stirred to react 2 hours, and product is added in the distilled water of 30 times of its weight by discharging, and room temperature stands 4 days, and filtering obtains
Precrosslink polyimides polyvinyl chloride；
(e) methylene-bisacrylamide is added in the absolute ethyl alcohol of 3 times of its weight, it is 80 DEG C to increase temperature, is added
Butanethiol tin is added in chlorinated paraffin, polyethyleneimine, insulated and stirred 10 minutes, discharging, stirs to room temperature, obtains amide alcohol liquid；
(f) above-mentioned precrosslink polyimides polyvinyl chloride, amide alcohol liquid are mixed, it is 50 DEG C to increase temperature, is added above-mentioned
Dimethylacetylamide, 100 revs/min are stirred 5 minutes, and silane-modified amide solution is obtained；
(g) above-mentioned active oxidation aluminium ball is added in N-Methyl pyrrolidone, ultrasound 2 minutes obtains alumina fluid dispersion；
(h) above-mentioned silane-modified amide solution is added in alumina fluid dispersion, above-mentioned sldium lauryl sulfate is added, surpassed
Sound 20 minutes, filtering, will be deposited at 76 DEG C and is dried in vacuo 3 hours, wear into fine powder, is sent into 250 DEG C of vacuum drying chamber, adds
Heat 6 hours, discharging cooling, obtains cross-linking modified polyimides；
(i) above-mentioned cross-linking modified polyimides is mixed with remaining each raw material, stirs evenly, is sent to screw extruder
In, melting extrusion is cooling up to the base material.
(2) 40 DEG C of room temperature of base material placement is subjected to ageing 3 days, and high pressure is added in material after 35 DEG C of material heating after ageing
Into horizontal high voltage batch mixing in container, pressure is 2 times of atmospheric pressure, and the temperature of high pressure batch mixing is 155 DEG C, and the time of high pressure batch mixing is 8 points
Clock；Then be added extruder complete melting, batch mixing, extrusion process, the machine barrel of extruder includes four areas, from feed end to crowded
The temperature of outlet, four areas is followed successively by 185-188 DEG C, 220-223 DEG C, 205-208 DEG C, 192-195 DEG C, the machine of the extruder
Cylinder pressure is 0.06MPa；Device for full-automatic belt maker finally is added in extruded material, is fabricated to adhesive tape, tape thickness
0.5cm, width 4cm.
The multi-silane is modified the ageing of insulating tape preparation method step 2, is as follows：The multi-silane is modified
Insulating tape step 1 prepares base material and is aged in constant temperature oven, and when to select Aging Temperature be 40 DEG C, digestion time is 3 days
Embodiment 2：
A kind of multi-silane is modified insulating tape and preparation method；
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of multi-silane is modified insulating tape and preparation method, including specific technical solution is as follows：Multi-silane is modified insulation
Adhesive tape includes following number component：
Kh5600.3 parts of silane coupling agent, 35 parts of dimethylacetylamide, 13 parts of polyvinyl alcohol, 25 parts of polyvinyl chloride, activity
7 parts of alumina balls, 3 parts of polyethyleneimine, 1 part of sldium lauryl sulfate, 0.7 part of maleic anhydride, octamethylcy-clotetrasiloxane 6
Part ,-POSS3 parts of octaphenyl, 0.02 part of tetramethylammonium hydroxide, 3 parts of octyl phenyl cyclotetrasiloxane, 4,4'- diamino hexichol
38 parts of ether, 46 parts of pyromellitic acid anhydride, 70 parts of N-Methyl pyrrolidone, 4 parts of calcium aluminate, 0.2 part of butanethiol tin, methylene
0.8 part of bisacrylamide, 4 parts of chlorinated paraffin, 22% 4 parts of acetum.
A kind of multi-silane modification insulating tape preparation method, includes the following steps：
(1) prepared by base material：
(a) the 15% of octamethylcy-clotetrasiloxane weight is taken, is mixed with tetramethylammonium hydroxide, nitrogen is passed through, at 95 DEG C
Lower insulation reaction 3 hours, it is room temperature slowly to reduce temperature, obtains alkaline-sol；
(b) the 15% of dimethylacetylamide weight is taken, remaining octamethylcy-clotetrasiloxane, four silicon of octyl phenyl ring is added
Oxygen alkane, octaphenyl-POSS, stir evenly, are passed through nitrogen, and above-mentioned alkaline-sol is added, and in 95 DEG C of insulated and stirreds 40 minutes, stop logical
Enter nitrogen, keep the temperature 3 hours, it is 150 DEG C to increase temperature, keeps the temperature 30 minutes, cooling, is dried in vacuo 2 hours, must be crosslinked at 65 DEG C
Polysiloxanes；
(c) 4,4'- diaminodiphenyl ethers are added in 3 times of its weight, 17% sulfuric acid solution, are added above-mentioned 20%
Acetum, stand 2 hours, filtering, precipitation is washed with deionized water 3 times, is dried in vacuo 4 hours, obtains refined at 60 DEG C
Phenylate；
(d) polyvinyl chloride is added in melting furnace and is heated to being completely melt for 160 DEG C, after by above-mentioned refined phenylate, equal benzene four
Formic acid dianhydride, cross linking polysiloxane, polyvinyl alcohol are added silane coupling agent, stir evenly, and are sent into ice-water bath, are passed through
Nitrogen is stirred to react 2 hours, and product is added in the distilled water of 30 times of its weight by discharging, and room temperature stands 4 days, and filtering obtains
Precrosslink polyimides polyvinyl chloride；
(e) methylene-bisacrylamide is added in the absolute ethyl alcohol of 3 times of its weight, it is 90 DEG C to increase temperature, is added
Butanethiol tin is added in chlorinated paraffin, polyethyleneimine, insulated and stirred 15 minutes, discharging, stirs to room temperature, obtains amide alcohol liquid；
(f) above-mentioned precrosslink polyimides polyvinyl chloride, amide alcohol liquid are mixed, it is 50 DEG C to increase temperature, is added above-mentioned
Dimethylacetylamide, 120 revs/min are stirred 10 minutes, and silane-modified amide solution is obtained；
(g) above-mentioned active oxidation aluminium ball is added in N-Methyl pyrrolidone, ultrasound 2 minutes obtains alumina fluid dispersion；
(h) above-mentioned silane-modified amide solution is added in alumina fluid dispersion, above-mentioned sldium lauryl sulfate is added, surpassed
Sound 30 minutes, filtering, will be deposited at 80 DEG C and is dried in vacuo 3 hours, wear into fine powder, is sent into 250 DEG C of vacuum drying chamber, adds
Heat 6 hours, discharging cooling, obtains cross-linking modified polyimides；
(i) above-mentioned cross-linking modified polyimides is mixed with remaining each raw material, stirs evenly, is sent to screw extruder
In, melting extrusion is cooling up to the base material.
(2) 30 DEG C of room temperature of base material placement is subjected to ageing 7 days, and high pressure is added in material after 50 DEG C of material heating after ageing
Into horizontal high voltage batch mixing in container, pressure is 2.5 times of atmospheric pressure, and the temperature of high pressure batch mixing is 160 DEG C, and the time of high pressure batch mixing is 8
Minute；Then be added extruder complete melting, batch mixing, extrusion process, the machine barrel of extruder includes four areas, from feed end to
The temperature of extruding end, four areas is followed successively by 185-186 DEG C, 230-222 DEG C, 205-206 DEG C, 194-195 DEG C, the extruder
Machine cylinder pressure is 0.06MPa；Device for full-automatic belt maker finally is added in extruded material, is fabricated to adhesive tape, tape thickness
0.15cm, width 5cm.
The multi-silane is modified the ageing of insulating tape preparation method step 2, is as follows：The multi-silane is modified
Insulating tape step 1 prepares base material and is aged in constant temperature oven, and when to select Aging Temperature be 30 DEG C, digestion time is 7 days.
To carrying out experiment investigation respectively in embodiment provided by the invention, embodiment 1 and embodiment 2 are prepared into multi-silane and changed
Property insulating tape carried out with reference to SJT9167.12-1993 and GB/T178750-1999 standards and method, the results are shown in Table 1；
1 multi-silane of table is modified insulating tape and investigates project
Wherein water imbibition test method is：After being handled 96 hours in 23 ± 1 DEG C, the air of relative humidity (96 ± 2) %,
Its dielectric strength minimum value should be remained not less than 90%.
Heat exposure detects：113 ± 1 DEG C of bellows of the material Jing Guo circulation air, after the processing of 168h, adhesive tape is distorted
Or when other unfavorable effects, adhesive tape is sagging should not to generate rupture.
Deformation test：100 ± 1 DEG C of bellows of the material Jing Guo circulation air, after the processing of 3h, adhesive tape is covered in junction
Insulation thickness should not reduce 40% or more.
By the above results show that：The present invention, which prepares multi-silane modification insulating tape, has thermal stability and irradiation stability,
Effectively raise the surface strength of insulating tape, multi-silane is modified insulating tape also and has efficient waterproof, ageing-resistant, impervious
Thoroughly, high temperature resistance is easy to get using material is safe and convenient, and no matter adhesive tape is for outdoor electric wire hot environment, rainwater day
Gas or indoor high temperature electric wire cable electric appliance etc. can keep good performance, pass through base material in adhesive tape preparation process
The techniques such as preparation, ageing, extend adhesive tape service life, and ageing-resistant, weathering etc. improves the safety in utilization of material, stability.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of multi-silane is modified insulating tape, it is characterised in that：It includes following number component that multi-silane, which is modified insulating tape,：
Kh5600.1-0.3 parts of silane coupling agent, 30-40 parts of dimethylacetylamide, 3-18 parts of polyvinyl alcohol, polyvinyl chloride 25-30
Part, 5-11 parts of active oxidation aluminium ball, 2-3 parts of polyethyleneimine, 0.8-1 parts of sldium lauryl sulfate, maleic anhydride 0.7-1
Part, 5-7 parts of octamethylcy-clotetrasiloxane ,-POSS2-3 parts of octaphenyl, 0.01-0.02 parts of tetramethylammonium hydroxide, octyl phenyl
1-3 parts of cyclotetrasiloxane, 37-40 parts of 4,4'- diaminodiphenyl ethers, 46-50 parts of pyromellitic acid anhydride, N-Methyl pyrrolidone
70-80 parts, 3-4 parts of calcium aluminate, 0.1-0.2 parts of butanethiol tin, 0.8-2 parts of methylene-bisacrylamide, chlorinated paraffin 4-6
Part, 3-8 parts of the acetum of 20-25%.
2. a kind of multi-silane is modified the preparation method of insulating tape, it is characterised in that：Multi-silane is modified insulating tape preparation method,
Include the following steps：
(1) prepared by base material：
(a) 10-15% for taking octamethylcy-clotetrasiloxane weight, mixes with tetramethylammonium hydroxide, is passed through nitrogen, in 90-95
Insulation reaction 2-3 hours at DEG C, it is room temperature slowly to reduce temperature, obtains alkaline-sol；
(b) remaining octamethylcy-clotetrasiloxane, four silicon of octyl phenyl ring is added in the 10-15% for taking dimethylacetylamide weight
Oxygen alkane, octaphenyl-POSS, stir evenly, are passed through nitrogen, and above-mentioned alkaline-sol is added, in 90-95 DEG C of insulated and stirred 30-40 minutes,
Stopping is passed through nitrogen, keeps the temperature 2-3 hours, and it is 150-160 DEG C to increase temperature, keeps the temperature 27-30 minutes, cooling, true at 60-65 DEG C
Sky is 1-2 hours dry, obtains cross linking polysiloxane；
(c) 4,4'- diaminodiphenyl ethers are added in 3-4 times of its weight, 15-17% sulfuric acid solution, above-mentioned 20- is added
25% acetum stands 1-2 hours, and precipitation is washed with deionized water 3-4 times, 4- is dried in vacuo at 60-70 DEG C by filtering
5 hours, obtain refined phenylate；
(d) polyvinyl chloride is added in melting furnace and is heated to being completely melt for 160-200 DEG C, after by above-mentioned refined phenylate, equal benzene four
Formic acid dianhydride, cross linking polysiloxane, polyvinyl alcohol are added silane coupling agent, stir evenly, and are sent into ice-water bath, are passed through
Nitrogen is stirred to react 2-3 hours, and product is added in the distilled water of 30-40 times of its weight by discharging, and room temperature stands 4-5 days,
Filtering, obtains precrosslink polyimides polyvinyl chloride；
(e) methylene-bisacrylamide is added in the absolute ethyl alcohol of 3-5 times of its weight, it is 80-90 DEG C to increase temperature, is added
Butanethiol tin is added in chlorinated paraffin, polyethyleneimine, insulated and stirred 10-17 minutes, discharging, stirs to room temperature, obtains amide alcohol
Liquid；
(f) above-mentioned precrosslink polyimides polyvinyl chloride, amide alcohol liquid are mixed, it is 50-60 DEG C to increase temperature, is added above-mentioned two
Methylacetamide, 100-200 revs/min is stirred 4-10 minutes, and silane-modified amide solution is obtained；
(g) above-mentioned active oxidation aluminium ball is added in N-Methyl pyrrolidone, it is 2-3 minutes ultrasonic, obtain alumina fluid dispersion；
(h) above-mentioned silane-modified amide solution is added in alumina fluid dispersion, above-mentioned sldium lauryl sulfate is added, ultrasound
20-30 minutes, filtering will be deposited at 76-80 DEG C and be dried in vacuo 3-5 hours, wear into fine powder, be sent into 250-260 DEG C of vacuum
It in drying box, heats 6-7 hours, discharging cooling obtains cross-linking modified polyimides；
(i) above-mentioned cross-linking modified polyimides is mixed with remaining each raw material, stirs evenly, be sent in screw extruder, melts
Melt extrusion, it is cooling up to the base material；
(2) 20-30 DEG C of room temperature of base material placement is subjected to ageing 5-7 days, and material after 35-50 DEG C of material heating after ageing is added
Into horizontal high voltage batch mixing in high-pressure bottle, pressure is 2~3 times of atmospheric pressure, and the temperature of high pressure batch mixing is 155-180 DEG C, high pressure batch mixing
Time be 8-10 minutes；Then be added extruder complete melting, batch mixing, extrusion process, the machine barrel of extruder is including four
Area, from feed end to extruding end, the temperature in four areas is followed successively by 165-185 DEG C, 220-230 DEG C, 205-210 DEG C, 190-195
DEG C, the machine cylinder pressure of the extruder is 0.06MPa；Device for full-automatic belt maker finally is added in extruded material, is fabricated to
Adhesive tape, tape thickness 0.1-1cm, width 0.5-10cm.
3. multi-silane according to claim 2 is modified the preparation method of insulating tape, it is characterised in that：Multi-silane is modified exhausted
Ageing in edge adhesive tape preparation method step 2, is as follows：Multi-silane modification insulating tape step 1 is prepared into base
Material is aged in constant temperature oven, and when to select Aging Temperature be 23-30 DEG C, digestion time is 7 days, selects Aging Temperature for 40 DEG C
When, digestion time is 3 days, and when select Aging Temperature be 50 DEG C, digestion time is 2 days, when to select Aging Temperature be 70 DEG C, is aged
Time is 1 day；Preferably, it is 40 DEG C to select Aging Temperature, and digestion time is 3 days, alternatively, it is 50 DEG C to select Aging Temperature, it is old
It is 2 days to change the time, it is furthermore preferred that it is 40 DEG C to select Aging Temperature, digestion time is 3 days.
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