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Mixed-solvent-resistant rubber material, preparation method and surface treatment method thereof

A technology of rubber materials and mixed solvents, which is applied in the field of mixed solvent-resistant rubber materials and their surface treatment, which can solve the problems of unsatisfactory liquid resistance and achieve the effects of reducing rubber swelling, increasing cross-linking density, and reducing penetration

Pending Publication Date: 2022-03-29
NINGBO TAIKEWEI RUBBER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of rubber material resistant to mixed solvents, to solve the technical problem that the liquid resistance performance of the rubber material in the prior art is not ideal

Method used

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  • Mixed-solvent-resistant rubber material, preparation method and surface treatment method thereof
  • Mixed-solvent-resistant rubber material, preparation method and surface treatment method thereof
  • Mixed-solvent-resistant rubber material, preparation method and surface treatment method thereof

Examples

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Embodiment 1

[0032] Summary of the plan: a rubber material resistant to mixed solvents, the rubber material is composed of the following components in parts by weight: 35-40 parts of nitrile rubber, 5-8 parts of chlorosulfonated polyethylene, 2 parts of zinc oxide ~3 parts, 1~2 parts of antioxidant, 5~10 parts of carbon black, 20~25 parts of inorganic filler, 2~3 parts of microcrystalline wax, 3~5 parts of softener, 5~8 parts of ultra-high molecular weight polyethylene, 2-3 parts of maleic anhydride modified PE, 0.2-0.5 parts of sulfur, and 1-2 parts of accelerator.

[0033] Specifically, 35 parts of nitrile rubber in this embodiment, 8 parts of chlorosulfonated polyethylene, 2.5 parts of zinc oxide, 1.5 parts of anti-aging agent, 8 parts of carbon black, 25 parts of inorganic filler, 5 parts of softening agent, ultra-high molecular weight polyethylene 8 parts of ethylene, 0.3 parts of sulfur, 2.5 parts of microcrystalline wax, 4 parts of softener, 2.5 parts of maleic anhydride modified PE...

Embodiment 2～3

[0041] Embodiment 2~3 and comparative example 1

[0042] The difference between Examples 2-3 and Comparative Example 1 and Example 1 is that the ratio of each component is different, and the composition ratio of the rubber material is shown in Table 1.

[0043] Table 1: The composition ratio of the rubber material in Examples 1 to 3 and Comparative Example 1

[0044]

[0045] Wherein, the rubber materials of Example 2, Example 3 and Comparative Example 1 also include 2.5 parts of microcrystalline wax, 4 parts of softener, 2.5 parts of maleic anhydride modified PE, and 1.5 parts of accelerator.

Embodiment 4

[0047] The difference between Example 4 and Example 1 is that the chlorine content of the chlorosulfonated polyethylene in the rubber material of Example 4 is 80%.

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PUM

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Abstract

The invention relates to a rubber material resistant to a mixed solvent. The rubber material is prepared from, by weight, 35-40 parts of nitrile rubber, 5-8 parts of chlorosulfonated polyethylene, 2-3 parts of zinc oxide, 1-2 parts of anti-aging agent, 5-10 parts of carbon black, 20-25 parts of inorganic filler, 2-3 parts of microcrystalline wax, 3-5 parts of softening agent, 5-8 parts of ultra-high molecular weight polyethylene and 2-3 parts of maleic anhydride modified PE. The preparation method of the rubber material comprises the following steps: step 1, plastifying: plastifying nitrile rubber and chlorosulfonated polyethylene in an internal mixer to obtain a mixture A; step 2, mixing: firstly, adding an anti-aging agent, zinc oxide and microcrystalline wax into the mixture A, and mixing; adding the carbon black, the inorganic filler and the softener, and mixing; adding ultra-high molecular weight polyethylene and maleic anhydride modified PE, and mixing for 80-120 seconds to obtain a mixture B; and step 3, adding sulfur and an accelerant into the mixture B to obtain the rubber material. The purpose of the present invention is to provide a mixed solvent resistant rubber material that meets the requirements for some polar and non-polar mixed solvents.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a rubber material resistant to mixed solvents and a surface treatment method thereof. Background technique [0002] With the development of the chemical industry and the automobile industry, the requirements for the sealing performance of some polar and non-polar mixed solvents are increasing. The components of these solvents are complex and have a strong swelling ability for rubber. At present, only perfluorinated rubber can meet the sealing performance. [0003] However, the price of existing perfluororubber is too high, and the general industry cannot afford the cost of perfluororubber. Moreover, perfluorinated rubber has excess performance, so it is urgent to develop a rubber with suitable performance and price to meet the general demand for some polar and non-polar mixed solvents. Contents of the invention [0004] The object of the present invention is to prov...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L23/34C08L23/06C08L91/06C08L91/00C08K3/22C08K3/04C08K3/34C08K5/11C08J7/14
CPCC08L9/02C08J7/14C08L2207/068C08K2003/2296C08J2309/02C08J2423/34C08J2423/06C08J2491/06C08J2491/00C08L23/34C08L23/06C08L91/06C08L91/00C08K3/22C08K3/04C08K3/34C08K5/11
Inventor 郑顺奇孟辉田立辉曾怡康
Owner NINGBO TAIKEWEI RUBBER TECH CO LTD
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