CN104945856A - High-transparency anti-yellowing epoxy resin composite material preparing method and application thereof - Google Patents
High-transparency anti-yellowing epoxy resin composite material preparing method and application thereof Download PDFInfo
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- CN104945856A CN104945856A CN201510412892.0A CN201510412892A CN104945856A CN 104945856 A CN104945856 A CN 104945856A CN 201510412892 A CN201510412892 A CN 201510412892A CN 104945856 A CN104945856 A CN 104945856A
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Abstract
The invention discloses a high-transparency anti-yellowing epoxy resin composite material preparing method and application thereof. The method includes the steps that liquid-state epoxy resin and solid-state epoxy resin are stirred at the temperature ranging from 80 DEG C to 90 DEG C, and mixed liquor A is obtained after complete mixing is finished; the mixed liquor A and an anti-yellowing assistant are stirred at the temperature ranging from 80 DEG C to 90 DEG C, and mixed liquor B is obtained after complete mixing is finished; a curing agent is added into the mixed liquor B to be evenly stirred at the temperature ranging from 70 DEG C to 80 DEG C, and mixed liquor C is obtained; an accelerant is added into the mixed liquor C to be evenly stirred at the temperature ranging from 70 DEG C to 80 DEG C so as to be cast on a stainless steel die, and a high-transparency anti-yellowing epoxy resin composite material is obtained after solidification demolding. According to the high-transparency anti-yellowing epoxy resin composite material preparing method, based on the good anti-yellowing character of the high anti-yellowing assistant, the liquid anti-yellowing assistant is dispersed into an epoxy resin system; meanwhile, in cooperation with the excellent mechanical property of the epoxy resin, the composite material shows the good anti-yellowing property, high strength and the like in the using process.
Description
Technical field
The invention belongs to field of polymer material preparing technology, be specifically related to a kind of high transparency, the preparation method of color inhibition epoxy resin composite material and application thereof.
Background technology
Carbon fiber prepreg is by materials such as carbon fiber yarn, epoxy resin, separate-type paper, is called carbon fiber prepreg, has another name called carbon fibre initial rinse fabric through film, hot pressing, cooling, overlay film, the matrix material that the processes such as to batch.Why make prepreg cloth be because this is the preliminary impregnation of resin and carbon fiber, be only the cause of final impregnation when formed product.
The present invention relates to the preparation method of a kind of high transparency for carbon fiber prepreg, high color inhibition-epoxy resin composite material; For existing transparent epoxy resin under the high temperature conditions color the defect such as easily to turn yellow, had a strong impact on the outward appearance of carbon fiber product, therefore needed to develop a kind of high transparency, high color inhibition-epoxy resin composite material.
Summary of the invention
Goal of the invention: the preparation method and the application thereof that the object of the present invention is to provide a kind of high transparency, color inhibition-epoxy resin composite material, described matrix material has color inhibition characteristic under higher high temperature, requires that higher field has huge application prospect at material transparent.
Technical scheme: preparation method provided by the present invention, be with epoxy resin, solidifying agent, promotor, core shell rubbers for starting material, prepared by following steps:
Liquid-state epoxy resin and solid epoxy resin are stirred at 80 ~ 90 DEG C, after mixing completely, obtains mixed liquor A; Above-mentioned mixed liquor A and color inhibition auxiliary agent are stirred at 80 ~ 90 DEG C, after mixing completely, obtains mixed liquid B; In above-mentioned mixed liquid B, add solidifying agent, at 70 ~ 80 DEG C, after stirring, obtain mixed solution C; In above-mentioned mixed solution C, add promotor, at 70 ~ 80 DEG C, after stirring, cast on stainless steel mould, after cure and demold, obtain described high transparency, high color inhibition-epoxy resin composite material.
Described liquid-state epoxy resin is bisphenol A-type 128 or E51, and solid epoxy is bisphenol A-type 901 or E20.Preferably 901.
Mass ratio 5:1 ~ the 5:5 of described liquid-state epoxy resin and solid epoxy resin.
Described color inhibition auxiliary agent is V-73P or V-76P; The mass ratio of mixed liquor A and color inhibition auxiliary agent is 100:0.5 ~ 100:2.
Described solidifying agent is for being Dyhard RU 100 100S, 100SF or DDA-5, preferred 100S; Mixed liquid B and solidifying agent mass ratio are 100:3 ~ 100:8.
Described promotor is two ureas U-24M, UR300 or UR500, preferred UR500; The mass ratio of mixed solution C and promotor is 100:0.5 ~ 100:5.
The viscosity of described mixed solution C is 3000-30000cps.
Present invention also offers the application of high transparency, color inhibition-epoxy resin composite material, described mixed solution C is prepared carbon fiber prepreg by adhesive film machine and dipping machine.
Concrete application method is: mixed solution C is placed in spreadometer, detects the thickness of glued membrane or the area density of glued membrane by infrared rays instrument, by cooling plate reduce glued membrane temperature, reduce its state of cure, obtained prepreg glued membrane used;
Above-mentioned glued membrane is drawn from the upper and lower glued membrane roller of prepreg machine, and form sandwich structure with carbon fiber, successively by several groups of hot-pressing rollers, make resin matrix melting, in fiber embedded resin matrix, cooling reduces prepreg temperature, finally carries out trimming, covers PE film, rolling, obtained high transparency, color inhibition epoxy resin carbon fiber prepreg.
Beneficial effect: the present invention itself has the characteristics such as good color inhibition based on high color inhibition agent, the agent of liquid milk xanthochromia is dispersed in epoxy-resin systems, the mechanical property of coupling collar epoxy resins excellence, makes this matrix material in use show the characteristics such as good yellowing resistance and high strength simultaneously.High xanthochromia, high strength-epoxy resin composite material preparation method is simple, efficiency is high, cost is low, industrial production potential is huge, and products obtained therefrom has the characteristics such as high color inhibition and high strength.
Embodiment:
For a better understanding of the present invention, illustrate content of the present invention further below in conjunction with embodiment, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
1) 67 grams of solid epoxies 901 and 33 grams of liquid epoxiess are placed in the glass flask with vacuum unit of 500 milliliters, stir 30min, obtain solution 1, be directly used in next step reaction;
2) upper step solution 1 and 2 grams of color inhibition agent V73-P are placed in the glass flask with vacuum unit of 500 milliliters, stir 20min, obtain solution 2;
3) add 5 grams of solidifying agent 100S by upper step solution 2, stir 30min, obtain mixture 1.
4) add 0.8 gram of promotor UR500 by upper step mixture 1, stir 10min, obtain mixture 2.
5) by step 4) in mixture 2 cast on stainless steel mould, 160 DEG C solidification one hour, after the demoulding described high transparency, color inhibition epoxy resin composite material.
Toasting 2 hours in 170 DEG C of baking ovens of the high transparency that the present embodiment obtains, color inhibition-epoxy resin composite material, matrix material is without flavescence phenomenon, and flexural strength reaches 130Mpa, tensile strength 80Mpa, mist degree 2.1%, 45 ° of glossiness 120.8%.
Embodiment 2
The present embodiment is relative to the step 1 in embodiment 1) add the consumption of promotor UR500 to reduce solidification value, shorten set time, enhance productivity.
1) 67 grams of solid epoxies 901 and 33 grams of liquid epoxiess are placed in the glass flask with vacuum unit of 500 milliliters, stir 30min, obtain solution 1, be directly used in next step reaction;
2) upper step solution 1 and 2 grams of color inhibition agent V73-P are placed in the glass flask with vacuum unit of 500 milliliters, stir 20min, obtain solution 2;
3) add 5 grams of solidifying agent 100S by upper step solution 2, stir 30min, obtain mixture 1.
4) add 2 grams of promotor UR500 by upper step mixture 1, stir 10min, obtain mixture 2.
5) by step 4) in mixture 2 cast on stainless steel mould, 160 DEG C solidification one hour, after the demoulding described high transparency, color inhibition epoxy resin composite material.
Toasting 2 hours in 170 DEG C of baking ovens of the high transparency that the present embodiment obtains, color inhibition-epoxy resin composite material, matrix material is without flavescence phenomenon, and flexural strength reaches 129Mpa, tensile strength 79Mpa.Mist degree 2.1%, 45 ° of glossiness 120.8%.
Embodiment 3
By step 4 in embodiment 1) mixture 2 that obtains is placed in spreadometer, detects the thickness of glued membrane or the area density of glued membrane by infrared rays instrument, by cooling plate reduce glued membrane temperature, reduce its state of cure, obtained prepreg glued membrane used.
The glued membrane of upper step is drawn from the upper and lower glued membrane roller of prepreg machine, and form sandwich structure with carbon fiber, successively by several groups of hot-pressing rollers, make resin matrix melting, in fiber embedded resin matrix, cooling reduces prepreg temperature, finally carries out trimming, covers PE film, rolling, obtained high transparency, color inhibition epoxy resin carbon fiber prepreg.
Embodiment 4
By step 4 in embodiment 2) mixture 2 that obtains is placed in spreadometer, detects the thickness of glued membrane or the area density of glued membrane by infrared rays instrument, by cooling plate reduce glued membrane temperature, reduce its state of cure, obtained prepreg glued membrane used.
The glued membrane of upper step is drawn from the upper and lower glued membrane roller of prepreg machine, and form sandwich structure with carbon fiber, successively by several groups of hot-pressing rollers, make resin matrix melting, in fiber embedded resin matrix, cooling reduces prepreg temperature, finally carries out trimming, covers PE film, rolling, obtained high transparency, color inhibition epoxy resin carbon fiber prepreg.
Claims (9)
1. a preparation method for high transparency, color inhibition epoxy resin composite material, to is characterized in that with epoxy resin, solidifying agent, promotor, core shell rubbers, for starting material, being prepared by following steps:
Liquid-state epoxy resin and solid epoxy resin are stirred at 80 ~ 90 DEG C, after mixing completely, obtains mixed liquor A;
Above-mentioned mixed liquor A and color inhibition auxiliary agent are stirred at 80 ~ 90 DEG C, after mixing completely, obtains mixed liquid B;
In above-mentioned mixed liquid B, add solidifying agent, at 70 ~ 80 DEG C, after stirring, obtain mixed solution C;
In above-mentioned mixed solution C, add promotor, at 70 ~ 80 DEG C, after stirring, cast on stainless steel mould, after cure and demold, obtain described high transparency, high color inhibition-epoxy resin composite material.
2. preparation method as claimed in claim 1, it is characterized in that described liquid-state epoxy resin is bisphenol A-type 128 or E51, solid epoxy is bisphenol A-type 901 or E20.
3. preparation method as claimed in claim 1, is characterized in that the mass ratio 5:1 ~ 5:5 of described liquid-state epoxy resin and solid epoxy resin.
4. preparation method as claimed in claim 1, is characterized in that described color inhibition auxiliary agent is V-73P or V-76P; The mass ratio of mixed liquor A and color inhibition auxiliary agent is 100:0.5 ~ 100:2.
5. preparation method as claimed in claim 1, is characterized in that described solidifying agent is for being Dyhard RU 100 100S, 100SF or DDA-5; Mixed liquid B and solidifying agent mass ratio are 100:3 ~ 100:8.
6. preparation method as claimed in claim 1, is characterized in that described promotor is two ureas U-24M, UR300 or UR500; The mass ratio of mixed solution C and promotor is 100:0.5 ~ 100:5.
7. preparation method as claimed in claim 1, is characterized in that the viscosity of described mixed solution C is 3000-30000cps.
8. the application of matrix material that obtains of method as claimed in claim 1, is characterized in that described mixed solution C to prepare carbon fiber prepreg by adhesive film machine and dipping machine.
9. apply as claimed in claim 8, it is characterized in that mixed solution C to be placed in spreadometer, detect the thickness of glued membrane or the area density of glued membrane by infrared rays instrument, by cooling plate reduce glued membrane temperature, reduce its state of cure, obtained prepreg glued membrane used;
Above-mentioned glued membrane is drawn from the upper and lower glued membrane roller of prepreg machine, and form sandwich structure with carbon fiber, successively by several groups of hot-pressing rollers, make resin matrix melting, in fiber embedded resin matrix, cooling reduces prepreg temperature, finally carries out trimming, covers PE film, rolling, obtained high transparency, color inhibition epoxy resin carbon fiber prepreg.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778425A (en) * | 2016-05-20 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparation method for carbon fiber prepreg with low resin content |
| CN105778426A (en) * | 2016-05-20 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparation and application of high-wettability epoxy resin composite material |
| CN105885352A (en) * | 2016-05-20 | 2016-08-24 | 江苏兆鋆新材料股份有限公司 | Preparation method of high-strength carbon fiber prepreg |
| CN106046677A (en) * | 2016-05-27 | 2016-10-26 | 江苏兆鋆新材料股份有限公司 | Epoxy resin and carbon fiber prepreg with storage stability and method for preparing epoxy resin and carbon fiber prepreg |
| CN107141717A (en) * | 2017-04-19 | 2017-09-08 | 中国航空工业集团公司基础技术研究院 | A kind of preparation method of transparent self toughening dicyandiamide/epoxy resin-base composite material |
| CN107214808A (en) * | 2017-06-15 | 2017-09-29 | 浙江润格木业科技有限公司 | Composite wood and its manufacture method |
| CN108570217A (en) * | 2018-05-15 | 2018-09-25 | 江苏兆鋆新材料股份有限公司 | A kind of preparation method and applications of high transparency epoxy resin composite material |
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| CN102127384A (en) * | 2010-12-27 | 2011-07-20 | 广东风华高新科技股份有限公司 | Impact and light decay-resistant die attach insulation paste and preparation method thereof |
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| JP2005171207A (en) * | 2003-12-15 | 2005-06-30 | Sekisui Chem Co Ltd | Resin sheet |
| CN102127384A (en) * | 2010-12-27 | 2011-07-20 | 广东风华高新科技股份有限公司 | Impact and light decay-resistant die attach insulation paste and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778425A (en) * | 2016-05-20 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparation method for carbon fiber prepreg with low resin content |
| CN105778426A (en) * | 2016-05-20 | 2016-07-20 | 江苏兆鋆新材料股份有限公司 | Preparation and application of high-wettability epoxy resin composite material |
| CN105885352A (en) * | 2016-05-20 | 2016-08-24 | 江苏兆鋆新材料股份有限公司 | Preparation method of high-strength carbon fiber prepreg |
| CN106046677A (en) * | 2016-05-27 | 2016-10-26 | 江苏兆鋆新材料股份有限公司 | Epoxy resin and carbon fiber prepreg with storage stability and method for preparing epoxy resin and carbon fiber prepreg |
| CN106046677B (en) * | 2016-05-27 | 2019-03-29 | 江苏兆鋆新材料股份有限公司 | A kind of epoxy resin carbon fiber prepreg of shelf-stable and preparation method thereof |
| CN107141717A (en) * | 2017-04-19 | 2017-09-08 | 中国航空工业集团公司基础技术研究院 | A kind of preparation method of transparent self toughening dicyandiamide/epoxy resin-base composite material |
| CN107214808A (en) * | 2017-06-15 | 2017-09-29 | 浙江润格木业科技有限公司 | Composite wood and its manufacture method |
| CN107214808B (en) * | 2017-06-15 | 2019-06-07 | 浙江润格木业科技有限公司 | Composite wood and its manufacturing method |
| CN108570217A (en) * | 2018-05-15 | 2018-09-25 | 江苏兆鋆新材料股份有限公司 | A kind of preparation method and applications of high transparency epoxy resin composite material |
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