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Graphene cold-resistant rubber polymer composition and preparation method thereof

A cold-resistant rubber and graphene technology, which is applied in the field of rubber products, can solve the problems of poor mechanical properties such as tensile strength and elongation at break, poor comprehensive performance of shear performance, and failure to meet the requirements of use, etc., to achieve shear performance Excellent, low-temperature shear performance, saving manpower and equipment costs

Inactive Publication Date: 2019-11-29
FUJIAN WUCHIHENG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Poor cold resistance and low temperature performance, which cannot meet the requirements of wide temperature (especially low temperature) range;
[0008] 2. Poor mechanical properties such as tensile strength and elongation at break;
[0009] 3. High compression set rate and poor resilience;
[0010] 4. Poor comprehensive performance such as shear performance and appearance performance

Method used

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  • Graphene cold-resistant rubber polymer composition and preparation method thereof
  • Graphene cold-resistant rubber polymer composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A graphene cold-resistant rubber macromolecular composition is made from the raw materials comprising the following parts by weight:

[0047] 60-68 parts of natural rubber, 8-12 parts of butadiene rubber, 23-29 parts of low-pressure polyethylene, 13-17 parts of polyphenylene ether, 4-6 parts of oxidized polyethylene, 3-4.5 parts of flow aid, 2.6 parts of graphene ~3.4 parts, 5~8 parts of silica modified by silane coupling agent, 3~5 parts of fumed silica, 2~3 parts of foaming agent, 1.4~1.8 parts of activated zinc oxide, 1.6~1.9 parts of bridging agent 1.5-2.2 parts of crosslinking agent, 3-5 parts of antioxidant, 3-5 parts of heat stabilizer; the flow aids are glycerol monostearate and 1,2-capric-3-stearic acid A mixture of glycerides; the graphene is a graphene nanosheet; the crosslinking agent is a mixture of sulfur and trimethylolpropane trimethacrylate.

[0048] Preferably, the graphene cold-resistant rubber polymer composition is made of raw materials comprising ...

Embodiment 2

[0064] A graphene cold-resistant rubber macromolecular composition is made from the raw materials comprising the following parts by weight:

[0065] 60 parts of natural rubber, 8 parts of butadiene rubber, 23 parts of low-pressure polyethylene, 13 parts of polyphenylene ether, 4 parts of oxidized polyethylene, 3 parts of flow aid, 2.6 parts of graphene, 5 parts of silica modified by silane coupling agent Parts, 3 parts of fumed silica, 2 parts of foaming agent, 1.4 parts of activated zinc oxide, 1.6 parts of bridging agent, 1.5 parts of crosslinking agent, 3 parts of antioxidant, 3 parts of heat stabilizer; the flow aid It is a mixture of glyceryl monostearate and 1,2-capric acid-3-glyceryl stearate; the graphene is a nano-graphene microplate; the cross-linking agent is sulfur and trimethacrylic acid trihydroxy Mixture of methyl propane esters.

[0066] In this embodiment, the number average molecular weight of the oxidized polyethylene is 80,000.

[0067] In this example, t...

Embodiment 3

[0081] A graphene cold-resistant rubber macromolecular composition is made from the raw materials comprising the following parts by weight:

[0082] 68 parts of natural rubber, 12 parts of butadiene rubber, 29 parts of low-pressure polyethylene, 17 parts of polyphenylene ether, 6 parts of oxidized polyethylene, 4.5 parts of flow aid, 3.4 parts of graphene, 8 parts of silica modified by silane coupling agent Parts, 5 parts of fumed silica, 3 parts of foaming agent, 1.8 parts of activated zinc oxide, 1.9 parts of bridging agent, 2.2 parts of crosslinking agent, 5 parts of antioxidant, 5 parts of thermal stabilizer; the flow aid It is a mixture of glyceryl monostearate and 1,2-capric acid-3-glyceryl stearate; the graphene is a nano-graphene microplate; the cross-linking agent is sulfur and trimethacrylic acid trihydroxy Mixture of methyl propane esters.

[0083] In this embodiment, the number average molecular weight of the oxidized polyethylene is 130,000.

[0084] In this exa...

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Abstract

The invention discloses a graphene cold-resistant rubber polymer composition. The graphene cold-resistant rubber polymer composition prepared from the following raw materials in parts by weight: 60-68parts of natural rubber, 8-12 parts of polybutadiene rubber, 23-29 parts of low-pressure polyethylene, 13-17 parts of polyphenylene ether, 4-6 parts of oxidized polyethylene, 3-4.5 parts of a flow additive, 2.6-3.4 parts of grapheme, 5-8 parts of silane coupling agent modified white carbon black, 3-5 parts of fumed silica, 2-3 parts of a foaming agent, 1.4-1.8 parts of activated zinc oxide, 1.6-1.9 parts of a bridging agent, 1.5-2.2 parts of a cross-linking agent, 3-5 parts of an antioxidant and 3-5 parts of a heat stabilizer. The graphene cold-resistant rubber polymer composition is low in compression permanent deformation rate, good in resilience, high in tensile strength, high in elongation at break, excellent in shear performance, good in comprehensive performance, excellent in processing performance, good in apparent quality, most importantly, low in brittleness temperature and good in low temperature resistance, can be used in a long term in the range of normal temperature to -40 DEG C, and is excellent in cold resistance.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to a graphene cold-resistant rubber polymer composition and a preparation method thereof. Background technique [0002] Natural rubber (NR) is a natural polymer compound with cis-1,4-polyisoprene as the main component, and 91% to 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene Diene), and the rest are non-rubber substances such as protein, fatty acid, ash, sugar, etc. It is generally flake solid, relative density 0.94, refractive index 1.522, elastic modulus 2-4MPa, softens at 130-140°C, sticky and soft at 150-160°C, and begins to degrade at 200°C. It has high elasticity at room temperature, slightly plastic, and crystallizes and hardens at low temperature. It has good alkali resistance, but not strong acid resistance. Insoluble in water, lower ketones and alcohols, can swell in non-polar solvents such as chloroform, carbon tetrachloride, etc. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L23/06C08L71/12C08L23/30C08K13/06C08K9/06C08K3/36C08K3/04C08K5/103C08K3/06C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/009C08J9/0095C08J9/103C08J2203/04C08J2307/00C08J2409/00C08J2423/06C08J2423/30C08J2471/12
Inventor 丁天宁丁德材丁幼丝
Owner FUJIAN WUCHIHENG TECH DEV CO LTD
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