CN110734612A - fatigue-resistant chlorosulfonated polyethylene rubber composition, and preparation method and application thereof - Google Patents
fatigue-resistant chlorosulfonated polyethylene rubber composition, and preparation method and application thereof Download PDFInfo
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- CN110734612A CN110734612A CN201910942527.9A CN201910942527A CN110734612A CN 110734612 A CN110734612 A CN 110734612A CN 201910942527 A CN201910942527 A CN 201910942527A CN 110734612 A CN110734612 A CN 110734612A
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- chlorosulfonated polyethylene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
- C08L23/283—Halogenated homo- or copolymers of iso-olefins
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention relates to the technical field of tires, in particular to fatigue-resistant chlorosulfonated polyethylene rubber compositions, which comprise 10-50 parts by weight of cis-1, 4-polyisoprene rubber, 50-100 parts by weight of copolymer of chlorinated isobutylene and isoprene and 5-20 parts by weight of chlorosulfonated polyethylene rubber.
Description
Technical Field
The invention relates to the technical field of tires, in particular to a fatigue-resistant chlorosulfonated polyethylene rubber composition, and a preparation method and application thereof.
Background
The raw rubber used in the existing semisteel airtight layer rubber formula is natural rubber and chlorinated butyl rubber, wherein the natural rubber can improve the viscosity of rubber materials and prevent the joint of the airtight layer from cracking in the forming process; the chlorinated butyl rubber has better fatigue resistance and gas retention performance, and can keep the tire pressure within a standard range for a longer time. However, both natural rubber and chlorinated butyl rubber are unsaturated rubber, and are easy to age in the later period of use, and the fatigue resistance can be reduced.
Disclosure of Invention
The invention provides fatigue-resistant chlorosulfonated polyethylene rubber compositions which can keep good fatigue resistance.
Specifically, aiming at the defects of the prior art, the invention provides the following technical scheme:
the invention provides fatigue-resistant chlorosulfonated polyethylene rubber compositions, which comprise 10-50 parts by weight of cis-1, 4-polyisoprene rubber, 50-100 parts by weight of copolymer of chlorinated isobutylene and isoprene and 5-20 parts by weight of chlorosulfonated polyethylene rubber.
Preferably, the composition also comprises 50 parts by weight of carbon black, 26 parts by weight of calcium carbonate, 5 parts by weight of aromatic oil, 2 parts by weight of anti-aging agent, 2.4 parts by weight of stearic acid, 7 parts by weight of tackifying resin, 1 part by weight of accelerator, 1.5 parts by weight of sulfur and 1.5 parts by weight of zinc oxide.
Preferably, the composition comprises the following components: 15 parts by weight of cis 1, 4-polyisoprene rubber, 85 parts by weight of a copolymer of chlorinated isobutylene and isoprene, and 10 parts by weight of chlorosulfonated polyethylene rubber.
Preferably, the composition comprises the following components: 15 parts by weight of cis 1, 4-polyisoprene rubber, 70 parts by weight of a copolymer of chlorinated isobutylene and isoprene, and 15 parts by weight of chlorosulfonated polyethylene rubber.
The chlorosulfonated polyethylene rubber is saturated elastomers with polyethylene as a main chain, and the aging and fatigue resistance is far superior to other unsaturated elastomers containing double bonds, so that the fatigue resistance of a mixture containing the chlorosulfonated polyethylene rubber is kept good.
Detailed Description
The invention relates to fatigue-resistant chlorosulfonated polyethylene rubber compositions, which are characterized by comprising 10-50 parts by weight of cis-1, 4-polyisoprene rubber, 50-100 parts by weight of copolymer of chlorinated isobutylene and isoprene and 5-20 parts by weight of chlorosulfonated polyethylene rubber.
The rubber composition of the present invention is further illustrated at by the following specific examples.
In the examples below, the reagent information used is as follows:
cis 1, 4-polyisoprene rubber: volatile content is less than or equal to 0.8 percent, manufacturer: shanghai Jinshan petrochemical.
Copolymer of chlorinated isobutylene and isoprene: the volatile content is less than or equal to 0.85 percent, and the manufacturer: alaneridae.
Chlorosulfonated polyethylene rubber: ash content is less than or equal to 14 percent, and the manufacturer: yellow rock, east China sea chemical Co.
Carbon black: number N234, manufacturer: cabot (china) investment limited.
Stearic acid: iodine value: 6.80g/100g, manufacturer: satsu Rugao chemical Co., Ltd.
Zinc oxide: zinc oxide content: 99.9%, manufacturer: products of Qingdao Haiyan chemical Co.
Accelerator (b): the model is as follows: NS, chemical name: n-tert-butyl-2-benzothiazoleinosine amide, purity: 98.6 percent; the manufacturer: shandong Yanggu Huatai chemical Co., Ltd.
For example, in the typical case, mixing is carried out in at least two stages, i.e., at least non-productive mixing stages, and productive mixing stages, the filler material is mixed with the rubber in or more non-productive mixing stages.
Example 1
The rubber compositions of the ingredients specified in Table 1 were prepared in a BR Banbury mixer using two separate feed mixing stages, non-productive mixing stages and productive mixing stages, the non-productive mixing stages mixing for about 2-3min until the rubber temperature reached 140 ℃ and completed, the mixing time of the productive mixing stages being the time to bring the rubber temperature to 115 ℃.
The rubber compositions are referred to herein as sample 1, sample 2. Sample 1 is considered herein as a control, i.e., no chlorosulfonated polyethylene rubber is used in the rubber composition.
All samples were cured at about 151 ℃ for about 30 min.
Table 2 shows the physical properties of vulcanized sample 1 and sample 2.
TABLE 1
TABLE 2
Example 2
The rubber compositions of the ingredients specified in Table 3 were prepared in a BR Banbury mixer using two separate feed mixing stages, non-productive mixing stages and productive mixing stages, the non-productive stages each mixing for about 2-3min until the rubber temperature reached 140 ℃ and completed, the mixing time of the productive mixing stage being the time to bring the rubber temperature to 115 ℃.
The rubber compositions are referred to herein as sample a, sample b. Sample a is considered herein as a control, i.e., no optimized rubber material formulation is used in the rubber composition.
All samples were cured at about 151 ℃ for about 30 min.
The apparent and physical properties of the cured samples a, b are given in table 4.
TABLE 3
TABLE 4
These results show that the elongation at break and the flex data of the inner liner rubber can be significantly improved by using chlorosulfonated polyethylene rubber in the inner liner rubber.
The elongation at break and the deflection data can be carried out according to the national standards GB/T528 and GB/T13934 of the tyre industry. The higher the reported value, the better the fatigue resistance.
The present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and accordingly, all such modifications and variations are considered to be within the scope of the invention as defined by the appended claims, rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein at any point .
Claims (4)
1, A fatigue-resistant chlorosulfonated polyethylene rubber composition, characterized in that, the composition comprises the following components:
10-50 parts of cis-1, 4-polyisoprene rubber, 50-100 parts of copolymer of chlorinated isobutylene and isoprene and 5-20 parts of chlorosulfonated polyethylene rubber.
2. The rubber composition according to claim 1, further comprising 50 parts by weight of carbon black, 26 parts by weight of calcium carbonate, 5 parts by weight of aromatic oil, 2 parts by weight of an antioxidant, 2.4 parts by weight of stearic acid, 7 parts by weight of a tackifying resin, 1 part by weight of an accelerator, 1.5 parts by weight of sulfur, and 1.5 parts by weight of zinc oxide.
3. The rubber composition of claim 2, wherein the composition comprises the following components: 15 parts by weight of cis 1, 4-polyisoprene rubber, 85 parts by weight of a copolymer of chlorinated isobutylene and isoprene, and 10 parts by weight of chlorosulfonated polyethylene rubber.
4. The rubber composition of claim 2, wherein the composition comprises the following components: 15 parts by weight of cis 1, 4-polyisoprene rubber, 70 parts by weight of a copolymer of chlorinated isobutylene and isoprene, and 15 parts by weight of chlorosulfonated polyethylene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942527.9A CN110734612A (en) | 2019-09-30 | 2019-09-30 | fatigue-resistant chlorosulfonated polyethylene rubber composition, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942527.9A CN110734612A (en) | 2019-09-30 | 2019-09-30 | fatigue-resistant chlorosulfonated polyethylene rubber composition, and preparation method and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110734612A true CN110734612A (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910942527.9A Pending CN110734612A (en) | 2019-09-30 | 2019-09-30 | fatigue-resistant chlorosulfonated polyethylene rubber composition, and preparation method and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048274A (en) * | 2000-08-04 | 2002-02-15 | Hitachi Cable Ltd | High-pressure rubber hose |
| CN102675662A (en) * | 2006-03-03 | 2012-09-19 | 横滨橡胶株式会社 | Elastomer composition, method for producing same, and pneumatic tire using same |
| CN102702631A (en) * | 2005-10-27 | 2012-10-03 | 埃克森美孚化学专利公司 | Thermoplastic elastomer composition and preparation method thereof |
| CN104341686A (en) * | 2014-11-03 | 2015-02-11 | 怡维怡橡胶研究院有限公司 | Application of continuously prepared rubber master batch to car tire inner liner rubber |
| CN106046435A (en) * | 2016-05-26 | 2016-10-26 | 德州玲珑轮胎有限公司 | Tire shoulder rubber material for radial tires and method for preparing tire shoulder rubber material |
| CN107057111A (en) * | 2017-05-27 | 2017-08-18 | 山东玲珑轮胎股份有限公司 | Semisteel capsule rubber reinforcing system and semisteel capsule rubber composition |
-
2019
- 2019-09-30 CN CN201910942527.9A patent/CN110734612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048274A (en) * | 2000-08-04 | 2002-02-15 | Hitachi Cable Ltd | High-pressure rubber hose |
| CN102702631A (en) * | 2005-10-27 | 2012-10-03 | 埃克森美孚化学专利公司 | Thermoplastic elastomer composition and preparation method thereof |
| CN102675662A (en) * | 2006-03-03 | 2012-09-19 | 横滨橡胶株式会社 | Elastomer composition, method for producing same, and pneumatic tire using same |
| CN104341686A (en) * | 2014-11-03 | 2015-02-11 | 怡维怡橡胶研究院有限公司 | Application of continuously prepared rubber master batch to car tire inner liner rubber |
| CN106046435A (en) * | 2016-05-26 | 2016-10-26 | 德州玲珑轮胎有限公司 | Tire shoulder rubber material for radial tires and method for preparing tire shoulder rubber material |
| CN107057111A (en) * | 2017-05-27 | 2017-08-18 | 山东玲珑轮胎股份有限公司 | Semisteel capsule rubber reinforcing system and semisteel capsule rubber composition |
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Application publication date: 20200131 |
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