CN104311902A - Precured buffer rubber for retreaded tire - Google Patents
Precured buffer rubber for retreaded tire Download PDFInfo
- Publication number
- CN104311902A CN104311902A CN201410609387.0A CN201410609387A CN104311902A CN 104311902 A CN104311902 A CN 104311902A CN 201410609387 A CN201410609387 A CN 201410609387A CN 104311902 A CN104311902 A CN 104311902A
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- China
- Prior art keywords
- prevulcanized
- rubber
- buffering adhesive
- precured
- parts
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tyre Moulding (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses precured buffer rubber for a retreaded tire. The precured buffer rubber takes nature rubber as a main material, into which an activator, a reinforcing agent (carbon black and white carbon black), a binder, an antiager, a vulcanizing agent, an accelerator and other fillers are added according to certain proportions. The precured buffer rubber has the advantages as follows: the precured buffer rubber is applicable to a retreaded diagonal tire or a retreaded semi-steel/all-steel radial tire; the precured buffer rubber has quite high withdrawal forces with a nylon cord and a steel cord ; the precured buffer rubber improves the bonding strength between precured tread rubber and an old tire body; delamination between the old tire body and a tread is reduced or even avoided; the using safety of the retreaded tire is obviously improved; the service life of the retreaded tire is effectively prolonged.
Description
Technical field
The present invention relates to tyre rebuilding sizing material, particularly a kind of renovated tyre prevulcanized buffering adhesive.
Background technology
Along with the develop rapidly of automotive industry, the generation of junked tire has become day by day serious problem.Due to tire in use, tyre surface is impaired relatively serious, and tyre-e/or performance loss is relatively less, the utilization again that therefore can realize junked tire by tyre rebuilding.The industry that tyre rebuilding is the reasonable recycle of resource, economic environmental protection, country advocate.
At present, tyre retreading technique comprises heat and turns over and turn over cold, wherein coldly turns over also referred to as prevulcanization retreading.It is be bonded in by unvulcanized tread rubber on the old carcass of having polished that heat is turned over, and sends into vulcanizing boiler, at high temperature under high pressure sulfuration.Owing to climbing in journey in heat, at high temperature under high pressure, the carcass life-span obviously declines the carcass of old tire, have impact on the total quality of tire.And prevulcanization retreading is on the old carcass that uses prevulcanized buffering adhesive to be bonded in by prevulcanized tire tread rubber to have polished, sulfuration under low temperature (100 ~ 120 DEG C) low pressure (0.5 ~ 0.6 MPa), therefore, it is possible to ensure that the quality of carcass is substantially unaffected, therefore prevulcanization retreading technology will become the inexorable trend of development.
Prevulcanization retreading is the developing direction of tyre rebuilding industry, but the preparation of prevulcanized buffering adhesive between precured tread and old carcass has become the difficult point of prevulcanization retreading technology.For preventing renovated tyre from occurring delamination between tyre surface and carcass during use, prevulcanized buffering adhesive must have good bond properties, and the buffering adhesive of prevulcanized simultaneously also should have excellent physicals, fatigue performance and heat aging property.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of renovated tyre prevulcanized buffering adhesive with good bond properties, physicals, fatigue performance and heat aging property is provided.
Object of the present invention is achieved through the following technical solutions:
A kind of renovated tyre prevulcanized buffering adhesive, carries out formulated by following raw material by weight proportion:
Natural rubber 100, zinc oxide 3 ~ 5, stearic acid 1 ~ 3, carbon black 25 ~ 45, white carbon black 4 ~ 12, aromatic hydrocarbon oil 3 ~ 6, silane coupling agent (Si69) 0.5 ~ 1.5, adhesive A and adhesive RS 3 ~ 6, new cobalt decanoate 0.5 ~ 1.5, ketoamine class anti-aging agent RD 1 ~ 3, p phenylenediamine type antioxidant 4020 or 4010NA 1 ~ 3, vulcanizing agent 1.5 ~ 3.0, ultraaccelerator TMTD 0.1 ~ 0.5, sulfenamide type accelerators NOBS or CZ 0.3 ~ 1.0, thiazole accelerator M 0.3 ~ 1.0, anti-scorching agent CTP 0.1 ~ 0.5, anti-recovery agent WK-901 0.3 ~ 0.8.
Described:
Natural rubber: one or both and use of 1# smoke sheet rubber, 3# smoke sheet rubber, be the material of main part of prevulcanized buffering adhesive, have good mechanical property, elasticity, flexible resistance;
Zinc oxide: as promoting agent, also can improve the tear resistance of sizing material;
Stearic acid: the processing characteristics improving rubber unvulcanizate;
Any one or two kinds in carbon black: N330 and N660 use, as strengthening agent, improve mechanical properties of rubber compound;
White carbon black: as strengthening agent, improves the tear resistance of sizing material, reduces the heat-dissipating of sizing material;
Aromatic hydrocarbon oil: the processing characteristics improving sizing material;
Silane coupling agent (Si69): surface modification white carbon black, improves the dispersiveness of white carbon black;
Adhesive A and adhesive RS: both with the use of, strengthen the bond strength of sizing material;
Anti-aging agent: reduce thermal ageing and fatigue cracking;
Vulcanizing agent: any one or two kinds in sulfur flour or insoluble sulfuy IS-60 use, for the sizing material between rubber molecule provides cross-linking set;
Scorch retarder: prevent coking, improves the coke burning performance of sizing material;
Anti-recovery agent: reduce reversion phenomenon, keeps the over-all properties of sizing material.
The manufacture craft of prevulcanized buffering adhesive of the present invention is: first plasticate to natural rubber, again by the natural rubber after plasticating and other raw material by weight making rubber unvulcanizate after banburying in Banbury mixer, rubber unvulcanizate extrudes the prevulcanized buffering adhesive with one fixed width and thickness by forcing machine.
The width of described prevulcanized buffering adhesive is 200 ~ 300 mm.
The thickness of described prevulcanized buffering adhesive is 0.8 ~ 1.5 mm.
Advantage of the present invention is: form silica-hexa-resorcinol binding system by selecting long-acting tackifying material RS, adhesive A and white carbon black, collocation uses a certain amount of new cobalt decanoate jointing material again, improve the extraction power with nylon cord, steel wire cord, its principal character combines between high, the old carcass of bond strength and tyre surface firmly, not easily occurs delamination problems; By carbon black and white carbon black and use, improve its physicals, reduce sizing material heat-dissipating; By using anti-recovery agent, the properties of rubber avoiding polysulfidic bond fracture to cause declines, and can not affect sulfuration and other processing performance of sizing material, heat aging property gets a promotion simultaneously.
Embodiment
Renovated tyre prevulcanized buffering adhesive of the present invention is formulated by weight proportion by following raw material;
| Starting material title | Embodiment one | Embodiment two | Embodiment three | Embodiment four |
| Natural rubber | 100 | 100 | 100 | 100 |
| Zinc oxide | 5 | 5 | 4 | 4 |
| Stearic acid | 1 | 1 | 1.5 | 2 |
| High abrasion furnace carbon black N330 | 25 | 20 | 30 | 25 |
| Universal carbon black N660 | 10 | 15 | 5 | 15 |
| White carbon black | 8 | 5 | 10 | 10 |
| Aromatic hydrocarbon oil | 4.5 | 3.5 | 3.5 | 4 |
| Coupling agent Si69 | 1 | 0.5 | 1 | 1 |
| Adhesive A and adhesive RS | 4.5 | 3.5 | 4.0 | 4.5 |
| New cobalt decanoate | 1.0 | 0.5 | 1.5 | 1.5 |
| Ketoamine class anti-aging agent RD | 1.5 | 1.2 | 2.0 | 2.0 |
| P phenylenediamine type antioxidant 4020 or 4010NA | 2.0 | 1.5 | 2.0 | 2.5 |
| Sulfur or insoluble sulfuy IS-60 | 2.25 | 2.0 | 2.25 | 2.5 |
| Ultraaccelerator TMTD | 0.2 | 0.15 | 0.25 | 0.3 |
| Sulfenamide type accelerators NOBS or CZ | 0.6 | 0.5 | 0.4 | 0.4 |
| Thiazole accelerator M | 0.6 | 0.9 | 0.7 | 0.5 |
| Anti-scorching agent CTP | 0.2 | 0.2 | 0.25 | 0.3 |
| Anti-recovery agent WK-901 | 0.6 | 0.5 | 0.4 | 0.3 |
The various embodiments described above preparation technology is identical, first natural rubber is plasticated, again by the natural rubber after plasticating and other raw material by weight making rubber unvulcanizate after banburying in Banbury mixer, rubber unvulcanizate extrudes the prevulcanized buffering adhesive with one fixed width and thickness by forcing machine.Be attached on the old carcass of grinding process by gluing for the prevulcanized of appropriate length, then prevulcanized tire tread rubber is bonded on old carcass by buffering adhesive, finally cryogenic vulcanization is carried out to renovated tyre and form prevulcanization retreading tire.
Prevulcanized buffering adhesive of the present invention after tested, has that tensile strength is high, stress at definite elongation is large, bond strength is high, a feature of fatigue performance and heat aging property excellence, and optimum performance test data is as follows:
| Project | Experimental data |
| Cure conditions | 110 ℃×80 min |
| Shao Er hardness A type/degree | 62 |
| Tensile strength/MPa | 25.2 |
| 300% stress at definite elongation/MPa | 10.1 |
| Tensile yield/% | 628 |
| Tear strength/(KN/m) | 89 |
| Flex crack/ten thousand time (without breach) | 30 |
| Bond strength (H extracts out)/(N/10mm) of vulcanized rubber and textile cord | 175 |
| Bond strength (steel wire is extracted out)/(N/50mm) of vulcanized rubber and individual wire | 958 |
| Bond strength (glue-carcass glue)/(KN/m) | 18.1 |
| Aging coefficient K（100℃×24h） | 0.82 |
Claims (7)
1. a renovated tyre prevulcanized buffering adhesive, it is characterized in that, it is made up of following raw materials in parts by weight ratio: natural rubber 100 parts, 3 ~ 5 parts, zinc oxide, stearic acid 1 ~ 3 part, carbon black 25 ~ 45 parts, white carbon black 4 ~ 12 parts, aromatic hydrocarbon oil 3 ~ 6 parts, silane coupling agent (Si69) 0.5 ~ 1.5 part, adhesive A and adhesive RS 3 ~ 6 parts, new cobalt decanoate 0.5 ~ 1.5 part, ketoamine class anti-aging agent RD 1 ~ 3 part, p phenylenediamine type antioxidant 4020 or 4010NA 1 ~ 3 part, vulcanizing agent 1.5 ~ 3.0 parts, ultraaccelerator TMTD 0.1 ~ 0.5 part, sulfenamide type accelerators NOBS or CZ 0.3 ~ 1.0 part, thiazole accelerator M 0.3 ~ 1.0 part, anti-scorching agent CTP 0.1 ~ 0.5 part, anti-recovery agent WK-901 0.3 ~ 0.8 part.
2. prevulcanized buffering adhesive according to claim 1, is characterized in that, described natural rubber is: any one or two kinds of 1# smoke sheet rubber, 3# smoke sheet rubber are also used.
3. prevulcanized buffering adhesive according to claim 1, is characterized in that, described carbon black is any one or two kinds in N330, N660 and uses.
4. prevulcanized buffering adhesive according to claim 1, is characterized in that, described vulcanizing agent is any one or two kinds in sulfur flour or insoluble sulfuy IS-60 and uses.
5. prevulcanized buffering adhesive according to claim 1, it is characterized in that: manufacture craft is: first natural rubber is plasticated, again according to raw material weight ratio, natural rubber after plasticating and other raw material are made rubber unvulcanizate after banburying in Banbury mixer, and rubber unvulcanizate extrudes the prevulcanized buffering adhesive with one fixed width and thickness by forcing machine.
6. prevulcanized buffering adhesive according to claim 5, is characterized in that: the width of described prevulcanized buffering adhesive is 200 ~ 300 mm.
7. prevulcanized buffering adhesive according to claim 5, is characterized in that: the thickness of described prevulcanized buffering adhesive is 0.8 ~ 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609387.0A CN104311902B (en) | 2014-11-04 | 2014-11-04 | Retreads presulfurization buffering adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609387.0A CN104311902B (en) | 2014-11-04 | 2014-11-04 | Retreads presulfurization buffering adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104311902A true CN104311902A (en) | 2015-01-28 |
| CN104311902B CN104311902B (en) | 2016-09-07 |
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| CN201410609387.0A Active CN104311902B (en) | 2014-11-04 | 2014-11-04 | Retreads presulfurization buffering adhesive |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927130A (en) * | 2015-06-05 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method of retreading rubber |
| CN104927103A (en) * | 2015-06-05 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Dedicated retreading rubber |
| CN105001720A (en) * | 2015-06-05 | 2015-10-28 | 广西柳州高昭贸易有限公司 | Tire retreading glue preparing process |
| CN105860156A (en) * | 2016-04-25 | 2016-08-17 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Pre-vulcanized tread rubber for retreaded tire and manufacturing process of pre-vulcanized tread rubber |
| CN108948447A (en) * | 2018-05-04 | 2018-12-07 | 杭州前进联轴器有限公司 | A kind of ship machinery highly elastic shaft coupling rubber and its vulcanization preparation method |
| CN112552558A (en) * | 2020-12-04 | 2021-03-26 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Cord fabric skim of bias aircraft tire and preparation method thereof |
| CN117621511A (en) * | 2024-01-25 | 2024-03-01 | 蒂普拓普（天津）橡胶技术有限公司 | Pre-vulcanized composite tread tire retreading method, composite tread and retreaded tire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102476464A (en) * | 2010-11-24 | 2012-05-30 | 软控股份有限公司 | Method for retreading a tire using a precured annular tread |
| CN103013382A (en) * | 2012-12-24 | 2013-04-03 | 桂林电子科技大学 | Adhesive used for tire retreading via pre-cured treading method |
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2014
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102476464A (en) * | 2010-11-24 | 2012-05-30 | 软控股份有限公司 | Method for retreading a tire using a precured annular tread |
| CN103013382A (en) * | 2012-12-24 | 2013-04-03 | 桂林电子科技大学 | Adhesive used for tire retreading via pre-cured treading method |
Non-Patent Citations (1)
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| 李明枝等: "《巨型工程机械轮胎热修补胶的研制》", 《轮胎工业》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927130A (en) * | 2015-06-05 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Preparation method of retreading rubber |
| CN104927103A (en) * | 2015-06-05 | 2015-09-23 | 广西柳州高昭贸易有限公司 | Dedicated retreading rubber |
| CN105001720A (en) * | 2015-06-05 | 2015-10-28 | 广西柳州高昭贸易有限公司 | Tire retreading glue preparing process |
| CN105860156A (en) * | 2016-04-25 | 2016-08-17 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Pre-vulcanized tread rubber for retreaded tire and manufacturing process of pre-vulcanized tread rubber |
| CN108948447A (en) * | 2018-05-04 | 2018-12-07 | 杭州前进联轴器有限公司 | A kind of ship machinery highly elastic shaft coupling rubber and its vulcanization preparation method |
| CN112552558A (en) * | 2020-12-04 | 2021-03-26 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Cord fabric skim of bias aircraft tire and preparation method thereof |
| CN117621511A (en) * | 2024-01-25 | 2024-03-01 | 蒂普拓普（天津）橡胶技术有限公司 | Pre-vulcanized composite tread tire retreading method, composite tread and retreaded tire |
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| Publication number | Publication date |
|---|---|
| CN104311902B (en) | 2016-09-07 |
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