CN106928505B - A kind of high rigidity electro-insulating rubber and preparation method - Google Patents
A kind of high rigidity electro-insulating rubber and preparation method Download PDFInfo
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- CN106928505B CN106928505B CN201511015076.2A CN201511015076A CN106928505B CN 106928505 B CN106928505 B CN 106928505B CN 201511015076 A CN201511015076 A CN 201511015076A CN 106928505 B CN106928505 B CN 106928505B
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Abstract
A kind of high rigidity electro-insulating rubber and preparation method, the recirculated water of open mill is turned off, roller temperature is heated to 60-80 DEG C, trans-polyisoprene is added, it plasticates after packet roller, phenolic resin is added, strong prestige powder GTC, stearic acid, zinc oxide, antioxidant A, antioxidant 4010NA, altax are added after mixing；After mixing, recirculated water is opened, roller temperature is controlled at 60-70 DEG C, and Vulcanization accelerator TMTD, sulphur, Urotropinum is added；Thin logical bottom sheet after mixing.The invention has the advantages that: trans-polyisoprene is shared with phenolic resin, and when more than 60 DEG C, Mooney is reduced rapidly, and process heat is low, and properties of product are stablized；When lower than 40 DEG C, composition generates crystallization, and hardness increases rapidly, reaches Shao 90(A) more than.Using strong prestige powder GTC, improve process, rubber surface is smooth, improves rubber hardness and volume resistivity, and product volume resistivity all meets 1 × 1010The requirement of Ω cm.
Description
Technical field
The invention belongs to a kind of preparation method of rubber, in particular to a kind of high rigidity electro-insulating rubber and preparation method.
Background technique
High rigidity electro-insulating rubber is for manufacturing high-speed railway insulated buffer plate.The backing plate requires hardness to reach Shao 90(A)
More than, volume resistivity reaches 1 × 1010Ω cm or more.Conventionally fabricated high rigidity electro-insulating rubber has following two method: 1, rubber
Glue adds 100 parts of white carbon black or more.Since white carbon black is in acidity, white carbon black is largely added, will affect Vulcanization Process of Rubber, is caused
Product state of cure (vulcanization) is inadequate, influences properties of product.2, rubber adds 50 parts of high-phenylethylene or more.This method is in rubber processing process
Middle heat is big, and rubber is also easy to produce incipient scorch, and product quality fluctuation is big.
Summary of the invention
The present invention provides a kind of high rigidity electro-insulating rubber and preparation method, and the backing plate hardness of the composition manufacture is up to 90
More than (Shao A), volume resistivity reaches 1 × 1010Ω cm or more, the composition process heat is low, and properties of product are stablized.
The present invention is achieved by the following technical solutions: a kind of high rigidity electro-insulating rubber, it is characterised in that: with trans- poly-
Part 100 based on isoprene, the weight fraction ratio of each raw material are as follows:
100 parts of Isosorbide-5-Nitrae trans-polyisoprene,
10-30 parts of phenolic resin,
Strong 10-30 parts of powder GTC of prestige,
1-3 parts of stearic acid,
3-5 parts of zinc oxide,
1-3 parts of antioxidant A,
1-3 parts of antioxidant 4010NA,
1-3 parts of altax,
0.1-0.5 parts of Vulcanization accelerator TMTD,
1-3 parts of sulphur,
1-3 parts of Urotropinum.
The antioxidant A scientific name is N- phenyl-α-naphthylamine.
The antioxidant 4010NA scientific name is N-isopropyl-N '-diphenyl-para-phenylene diamine.
The altax scientific name is dithio-bis-benzothiazole.
The Vulcanization accelerator TMTD scientific name is N, N,The double thiamides of two sulphur of tetramethyl.
The Urotropinum scientific name is hexa.
A kind of preparation method of high rigidity electro-insulating rubber, it is characterised in that: it includes the following steps:
1, ingredient:
According to the following parts by weight ingredient of each component:
100 parts of Isosorbide-5-Nitrae trans-polyisoprene,
10-30 parts of phenolic resin,
Strong 10-30 parts of powder GTC of prestige,
1-3 parts of stearic acid,
3-5 parts of zinc oxide,
1-3 parts of antioxidant A,
1-3 parts of antioxidant 4010NA,
1-3 parts of altax,
0.1-0.5 parts of Vulcanization accelerator TMTD,
1-3 parts of sulphur,
1-3 parts of Urotropinum,
2, the recirculated water of open mill is turned off, roller temperature is heated to 60-80 DEG C, Isosorbide-5-Nitrae trans-polyisoprene is added, plasticates
After packet roller, phenolic resin is added, strong prestige powder GTC, stearic acid, zinc oxide, antioxidant A, antioxidant 4010NA, rush are added after mixing
Into agent DM；
3, after mixing, recirculated water is opened, roller temperature is controlled at 60-70 DEG C, Vulcanization accelerator TMTD, sulphur, Urotropinum is added；
4, thin after mixing to lead to 5 times bottom sheet, as high rigidity electro-insulating rubber；
5, the composition sample detection curing curve:
Conditions of vulcanization is 150 DEG C × 30min,
T10 is 30S~120S, and T90 is 10min~15min；
6, combination of the above object is taken, is vulcanized under 150 DEG C of temperature, time 15min conditions of vulcanization, hardness is up to Shao 90(
A more than), volume resistivity reaches 1 × 1010Ω cm or more.
The advantages of the present invention are:
1, the present invention is that Isosorbide-5-Nitrae trans-polyisoprene and phenolic resin share, and when more than 60 DEG C, Mooney is reduced rapidly, and adds
Work process heat is low, and properties of product are stablized；When lower than 40 DEG C, composition generates crystallization, and hardness increases rapidly, reaches Shao 90(A)
More than.
2, the present invention applies strong prestige powder GTC, can improve process, keep rubber surface smooth, and rubber can be improved
Hardness and volume resistivity, after strong prestige powder is added, product volume resistivity all meets 1 × 1010The requirement of Ω cm.
Specific embodiment:
Embodiment 1: a kind of high rigidity electro-insulating rubber, the parts by weight composition of each raw material:
Isosorbide-5-Nitrae trans-polyisoprene 100；
Phenolic resin 10；
Strong prestige powder GTC 30；
Stearic acid 1；
Zinc oxide 3；
Antioxidant A 1；
Antioxidant 4010NA 1；
Altax 1；
Vulcanization accelerator TMTD 0.5；
Sulphur 1；
Urotropinum 1；
Turn off recirculated water, open mill roller temperature is heated to 60-80 DEG C, Isosorbide-5-Nitrae trans-polyisoprene, packet roller of plasticating is added
Afterwards, phenolic resin is added, strong prestige powder GTC, stearic acid, zinc oxide, antioxidant A, antioxidant 4010NA, promotor are added after mixing
DM；After mixing, recirculated water is opened, roller temperature is controlled at 60-70 DEG C, Vulcanization accelerator TMTD, sulphur, Urotropinum is added；It is thin after mixing
Lead to 5 times bottom sheet.
The composition is taken to detect curing curve, conditions of vulcanization is 150 DEG C × 30min, and at 150 DEG C of temperature, time 15min
Vulcanized test specimens under conditions of vulcanization, hardness is up to Shao 90(A) more than, volume resistivity reaches 1 × 1010Ω cm or more.Through detecting,
Its performance are as follows:
| T10/s | 55 |
| T90/min | 11 |
| Hardness (Shao A) | 96 |
| Volume resistivity/Ω cm | 9×1011 |
Embodiment 2: a kind of high rigidity electro-insulating rubber, the parts by weight composition of each raw material:
Isosorbide-5-Nitrae trans-polyisoprene 100；
Phenolic resin 20；
Strong prestige powder GTC 20；
Stearic acid 2；
Zinc oxide 4；
Antioxidant A 2；
Antioxidant 4010NA 2；
Altax 2；
Vulcanization accelerator TMTD 0.2；
Sulphur 3；
Urotropinum 2；
According to the preparation method of embodiment 1, high rigidity electro-insulating rubber, through detecting, performance is made are as follows:
| T10/s | 63 |
| T90/min | 13 |
| Hardness (Shao A) | 95 |
| Volume resistivity/Ω cm | 3×1012 |
Embodiment 3: a kind of high rigidity electro-insulating rubber, the parts by weight composition of each raw material:
Isosorbide-5-Nitrae trans-polyisoprene 100；
Phenolic resin 30；
Strong prestige powder GTC 10；
Stearic acid 3；
Zinc oxide 5；
Antioxidant A 3；
Antioxidant 4010NA 3；
Altax 3；
Vulcanization accelerator TMTD 0.1；
Sulphur 2；
Urotropinum 3；
According to the preparation method of embodiment 1, high rigidity electro-insulating rubber, through detecting, performance is made are as follows:
| T10/s | 78 |
| T90/min | 15 |
| Hardness (Shao A) | 92 |
| Volume resistivity/Ω cm | 6×1012 |
Claims (7)
1. a kind of high rigidity electro-insulating rubber, it is characterised in that: part 100 based on trans-polyisoprene, the weight of each raw material
Portion rate are as follows:
100 parts of Isosorbide-5-Nitrae trans-polyisoprene,
10-30 parts of phenolic resin,
Strong 10-30 parts of powder GTC of prestige,
1-3 parts of stearic acid,
3-5 parts of zinc oxide,
1-3 parts of antioxidant A,
1-3 parts of antioxidant 4010NA,
1-3 parts of altax,
0.1-0.5 parts of Vulcanization accelerator TMTD,
1-3 parts of sulphur,
1-3 parts of Urotropinum.
2. a kind of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: the antioxidant A scientific name is N- benzene
Base-alpha-naphthylamine.
3. a kind of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: the antioxidant 4010NA scientific name is
N-isopropyl-N '-diphenyl-para-phenylene diamine.
4. a kind of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: the altax scientific name is two sulphur
For bisbenzothiazole.
5. a kind of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: the Vulcanization accelerator TMTD scientific name is N,
The double thiamides of two sulphur of N- tetramethyl.
6. a kind of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: the Urotropinum scientific name is six sub-
Tetramine.
7. a kind of preparation method of high rigidity electro-insulating rubber according to claim 1, it is characterised in that: it includes following step
It is rapid:
(1), ingredient:
According to the following parts by weight ingredient of each component:
100 parts of Isosorbide-5-Nitrae trans-polyisoprene,
10-30 parts of phenolic resin,
Strong 10-30 parts of powder GTC of prestige,
1-3 parts of stearic acid,
3-5 parts of zinc oxide,
1-3 parts of antioxidant A,
1-3 parts of antioxidant 4010NA,
1-3 parts of altax,
0.1-0.5 parts of Vulcanization accelerator TMTD,
1-3 parts of sulphur,
1-3 parts of Urotropinum,
(2), the recirculated water of open mill is turned off, roller temperature is heated to 60-80 DEG C, Isosorbide-5-Nitrae trans-polyisoprene, packet of plasticating is added
After roller, phenolic resin is added, strong prestige powder GTC, stearic acid, zinc oxide, antioxidant A, antioxidant 4010NA, promotion are added after mixing
Agent DM；
(3), after mixing, recirculated water is opened, roller temperature is controlled at 60-70 DEG C, Vulcanization accelerator TMTD, sulphur, Urotropinum is added；
(4), thin after mixing to lead to 5 times bottom sheet, as high rigidity electro-insulating rubber；
(5), the high rigidity electro-insulating rubber sample detection curing curve:
Conditions of vulcanization is 150 DEG C × 30min,
T10 is 30S~120S, and T90 is 10min~15min；
(6), take combination of the above object, vulcanized under 150 DEG C of temperature, time 15min conditions of vulcanization, hardness up to 90 Shao A with
On, volume resistivity reaches 1 × 1010Ω cm or more.
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| CN106928505A CN106928505A (en) | 2017-07-07 |
| CN106928505B true CN106928505B (en) | 2018-12-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481473A (en) * | 2008-01-07 | 2009-07-15 | 严晓敏 | Rubber composition and product thereof |
| CN101550245A (en) * | 2009-05-04 | 2009-10-07 | 杭州中策橡胶有限公司 | Tire compound composition using trans isoprene rubber and application thereof |
| CN102294762A (en) * | 2010-06-23 | 2011-12-28 | 赛轮股份有限公司 | Tire once-through-method rubber mixing process by using trans-isoprene rubber TPI |
| CN103159986A (en) * | 2011-12-19 | 2013-06-19 | 北京橡胶工业研究设计院 | Composition for positive photoresist rubber of red high elasticity high hardness table tennis bats |
| CN103408882A (en) * | 2013-08-29 | 2013-11-27 | 中胶橡胶资源再生（青岛）有限公司 | Thermoplastic vulcanized rubber and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1013118B (en) * | 1988-07-04 | 1991-07-10 | 中国科学院化学研究所 | High-elastic rubber products gutta percha |
-
2015
- 2015-12-31 CN CN201511015076.2A patent/CN106928505B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481473A (en) * | 2008-01-07 | 2009-07-15 | 严晓敏 | Rubber composition and product thereof |
| CN101550245A (en) * | 2009-05-04 | 2009-10-07 | 杭州中策橡胶有限公司 | Tire compound composition using trans isoprene rubber and application thereof |
| CN102294762A (en) * | 2010-06-23 | 2011-12-28 | 赛轮股份有限公司 | Tire once-through-method rubber mixing process by using trans-isoprene rubber TPI |
| CN103159986A (en) * | 2011-12-19 | 2013-06-19 | 北京橡胶工业研究设计院 | Composition for positive photoresist rubber of red high elasticity high hardness table tennis bats |
| CN103408882A (en) * | 2013-08-29 | 2013-11-27 | 中胶橡胶资源再生（青岛）有限公司 | Thermoplastic vulcanized rubber and preparation method thereof |
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Application publication date: 20170707 Assignee: Gold Value (China) Financial Leasing Co.,Ltd. Assignor: TIANJIN RUBBER INDUSTRY INSTITUTE CO.,LTD. Contract record no.: X2022980015546 Denomination of invention: A kind of high hardness insulating rubber and preparation method Granted publication date: 20181228 License type: Exclusive License Record date: 20220919 |