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Preparation method of modified wear-resistant and heat-resistant ECO rubber tube

A technology for heat-resistant rubber hoses, which is applied in the field of preparation of modified wear-resistant and heat-resistant ECO rubber hoses. and the effect of heat resistance improvement

Inactive Publication Date: 2020-02-28
ZHEJIANG JIUYUN VEHICLE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former is formed by the polymerization of epichlorohydrin alone, often expressed as CHR, and is named CO in my country; the latter is formed by the copolymerization of epichlorohydrin and ethylene oxide, commonly expressed by CHC, and is named ECO in my country, and the ECO hose is Refers to the hose made of chlorohydrin rubber raw materials, which has oil resistance, ozone resistance, heat resistance is better than nitrile rubber, air permeability is small, suitable for making sealing gaskets and diaphragms, but the ECO hose currently used has heat resistance and The wear resistance is not ideal enough to meet the user's requirements

Method used

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  • Preparation method of modified wear-resistant and heat-resistant ECO rubber tube

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Effect test

Embodiment 1

[0020] The invention provides a modified wear-resistant and heat-resistant ECO hose, wherein the raw materials used include the following parts by weight: 100 parts of rubber base material, 40-55 parts of N550 carbon black, 10-15 parts of bisphenol epoxy resin, 0.5-1.5 parts of fat exchange catalyst, 9-16 parts of polypropylene, 4-8 parts of DOS plasticizer, 1-2 parts of RD anti-aging agent, 1-3 parts of accelerator, and the rubber base material includes chlorohydrin rubber and natural rubber, the ratio between the chlorohydrin rubber and natural rubber is set to 1:1-2;

[0021] And specifically in the present embodiment: 100 parts of rubber base material, 40 parts of N550 carbon black, 10 parts of bisphenol epoxy resin, 0.5 part of fat exchange catalyst, 9 parts of polypropylene, 4 parts of DOS plasticizer, RD antioxidant is 1 part, accelerator is 1 part;

[0022] The present invention also includes the preparation method of the modified wear-resistant and heat-resistant ECO...

Embodiment 2

[0028] The invention provides a modified wear-resistant and heat-resistant ECO hose, wherein the raw materials used include the following parts by weight: 100 parts of rubber base material, 40-55 parts of N550 carbon black, 10-15 parts of bisphenol epoxy resin, 0.5-1.5 parts of fat exchange catalyst, 9-16 parts of polypropylene, 4-8 parts of DOS plasticizer, 1-2 parts of RD anti-aging agent, 1-3 parts of accelerator, and the rubber base material includes chlorohydrin rubber and natural rubber, the ratio between the chlorohydrin rubber and natural rubber is set to 1:1-2;

[0029] And be specific in the present embodiment: 100 parts of rubber substrates, 50 parts of N550 carbon blacks, 13 parts of bisphenol epoxy resins, 1 part of fat exchange catalysts, 12 parts of polypropylenes, 6 parts of DOS plasticizers, RD antioxidants are 1.5 parts, accelerator is 2 parts;

[0030] The present invention also includes the preparation method of the modified wear-resistant and heat-resista...

Embodiment 3

[0036] The invention provides a modified wear-resistant and heat-resistant ECO hose, wherein the raw materials used include the following parts by weight: 100 parts of rubber base material, 40-55 parts of N550 carbon black, 10-15 parts of bisphenol epoxy resin, 0.5-1.5 parts of fat exchange catalyst, 9-16 parts of polypropylene, 4-8 parts of DOS plasticizer, 1-2 parts of RD anti-aging agent, 1-3 parts of accelerator, and the rubber base material includes chlorohydrin rubber and natural rubber, the ratio between the chlorohydrin rubber and natural rubber is set to 1:1-2;

[0037] And specifically in the present embodiment: 100 parts of rubber base material, 55 parts of N550 carbon black, 15 parts of bisphenol epoxy resin, 1.5 parts of fat exchange catalyst, 16 parts of polypropylene, 8 parts of DOS plasticizer, RD antioxidant is 2 parts, accelerator is 3 parts;

[0038] The present invention also includes the preparation method of the modified wear-resistant and heat-resistant...

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Abstract

The invention discloses a preparation method of a modified wear-resistant and heat-resistant ECO rubber tube, and belongs to the field of rubber tube preparation. The modified wear-resistant and heat-resistant ECO rubber tube comprise the following components in parts by weight: 100 parts of a rubber base material, 40 to 55 parts of N550 carbon black; 10 to 15 parts of bisphenol epoxy resin; 0.5 to 1.5 parts of an ester exchange catalyst; 9-16 parts of polypropylene, 4 to 8 parts of DOS plasticizer; 1-2 parts of an RD anti-aging agent; and 1 to 3 parts of an accelerant. The preparation methodcomprises the following specific preparation steps: S1, thermoplastic mixing: feeding the prepared rubber base material, polypropylene, bisphenol epoxy resin and the ester exchange catalyst raw materials into a mixing mill for sealed mixing according to the formula proportion, and changing the condensed state structures of the raw materials to prepare a rubber compound, and S2, carrying out open milling. By adding bisphenol epoxy resin, the ester exchange catalyst and polypropylene, the wear resistance and the heat resistance of traditional ECO rubber tube can be effectively improved, so thathigher use requirements of users are met.

Description

technical field [0001] The invention relates to the technical field of rubber hose preparation, more specifically, the invention relates to a preparation method of a modified wear-resistant and heat-resistant ECO rubber hose. Background technique [0002] Chlorohydrin rubber refers to polyether rubber containing oxygen on side groups. It is a polymer elastomer formed by ring-opening polymerization of cyclic ethers containing epoxy groups. In the past, it was also called chlorine rubber. According to different polymerization methods, this rubber is divided into two types: homopolymer and copolymer. The former is formed by the polymerization of epichlorohydrin alone, often expressed as CHR, and is named CO in my country; the latter is formed by the copolymerization of epichlorohydrin and ethylene oxide, commonly expressed by CHC, and is named ECO in my country, and the ECO hose is Refers to the hose made of chlorohydrin rubber raw materials, which has oil resistance, ozone r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L71/03C08L63/00C08L23/12C08K13/02C08K3/04C08K5/3437C08K5/11
CPCC08L7/00C08L71/03C08L2201/08C08L2203/18C08L2205/035C08L63/00C08L23/12C08K13/02C08K3/04C08K5/3437C08K5/11
Inventor 闻浩泉王平陈国良倪志文杨万里孟霖忠陈庆良倪丽红
Owner ZHEJIANG JIUYUN VEHICLE PARTS