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Chlorosulfonated polyethylene rubber and preparation method thereof

A chlorosulfonated polyethylene and rubber technology, applied in the rubber field, can solve the problems of rough surface of rubber, poor uniformity and non-smooth rubber, and achieve the effect of low roughness, high uniformity and strong mechanical properties

Active Publication Date: 2022-03-04
XIAMEN FUSTE RUBBER & PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reinforcing fillers currently used are usually inorganic powders. Due to the large surface energy difference between the powder and the rubber matrix, the compatibility between the powder and the rubber matrix is ​​poor, and it is not easy to disperse in the rubber compound. Agglomeration occurs, which makes the overall uniformity of the rubber compound poor, reduces the mechanical properties of the rubber, and makes the rubber surface rough and not smooth

Method used

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  • Chlorosulfonated polyethylene rubber and preparation method thereof
  • Chlorosulfonated polyethylene rubber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0077] A preparation method of chlorosulfonated polyethylene rubber, comprising the following steps:

[0078] S1. First put 40kg of chlorosulfonated polyethylene into the internal mixer, and banbury for 170s at a temperature of 120°C, then add 8kg of diisononyl phthalate, 45kg of reinforcing filler (2.85kg carbon black, 12.45kg PW-80A, 6.25kg titanium dioxide and 23.45kg light calcium powder) and 1.8kg dispersant H60EF to continue banburying, when the temperature is 90°C, add 0.4kg flow agent WB222 to continue banburying, When the temperature is 120°C, the material is discharged to obtain the masterbatch;

[0079] S2. Cool the internal mixer first, control the temperature of the internal mixer below 70°C, add 0.4kg of vulcanizing agent MC-2, 0.74kg of accelerator (0.46kg of accelerator TETD, 0.28kg of accelerator TT), 0.3 kg of flow aid ST and masterbatch are put into the internal mixer, mixed and mixed until the temperature reaches 80°C, and then the rubber is obtained. The...

Embodiment 2

[0081] A preparation method of chlorosulfonated polyethylene rubber, comprising the following steps:

[0082] S1. Put 50kg of chlorosulfonated polyethylene into the internal mixer first, and banbury for 190s at a temperature of 130°C, then add 8.4kg of diisononyl phthalate and 35kg of reinforcing filler (0.35 kg carbon black, 9.95kg PW-80A, 3.75kg titanium dioxide and 20.95kg light calcium powder) and 1.2kg dispersant L-12 to continue banburying, when the temperature is 100°C, add 0.32kg flow agent WB222 to continue Banbury mixing, when the temperature is 130 ° C, the material is discharged to obtain the masterbatch;

[0083] S2. Cool the internal mixer first, control the temperature of the internal mixer below 70°C, add 0.5kg of vulcanizing agent MC-2, 0.7kg of accelerator (0.44kg of accelerator TETD, 0.26kg of accelerator TT), 0.33 kg of flow aid (0.2kg of flow aid ST, 0.13kg of flow aid AC) and masterbatch are put into the internal mixer and mixed until the temperature rea...

Embodiment 3

[0085] A preparation method of chlorosulfonated polyethylene rubber, comprising the following steps:

[0086] S1. First put 45kg of chlorosulfonated polyethylene into the internal mixer, and banbury for 180s at a temperature of 125°C, then add 8.2kg of diisononyl phthalate and 40kg of reinforcing filler (1.6 kg carbon black, 11.2kg PW-80A, 5kg titanium dioxide and 22.2kg light calcium powder) and 1.5kg dispersant KT-8A to continue banburying, when the temperature is 95°C, add 0.36kg flow agent WB222 to continue banburying Refining, when the temperature is 125°C, the material is discharged to obtain the masterbatch;

[0087] S2. Cool the internal mixer first, control the temperature of the internal mixer below 70°C, add 0.45kg of vulcanizing agent MC-2, 0.72kg of accelerator (0.45kg of accelerator TETD, 0.27kg of accelerator TT), 0.315 kg of flow aid AC and masterbatch were put into the internal mixer and mixed until the temperature reached 85°C, and then the rubber was obtain...

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Abstract

The invention relates to the field of rubber, and particularly discloses chlorosulfonated polyethylene rubber and a preparation method thereof. The rubber is prepared from the following raw material components in parts by weight: 40 to 50 parts of chlorosulfonated polyethylene, 0.32 to 0.4 part of a flowable agent, 8 to 8.4 parts of diisononyl phthalate, 35 to 45 parts of reinforcing filler, 0.4 to 0.5 part of a vulcanizing agent, 0.7 to 0.74 part of an accelerant, 0.3 to 0.33 part of a flow promoter and 1.2 to 1.8 parts of a dispersing agent. The chlorosulfonated polyethylene rubber disclosed by the invention is relatively high in overall uniformity degree, relatively strong in mechanical property, flat and smooth in surface and high in aesthetic degree.

Description

technical field [0001] The application relates to the rubber field, more specifically, it relates to a chlorosulfonated polyethylene rubber and a preparation method thereof. Background technique [0002] Chlorosulfonated polyethylene (CSM) is made from low-density polyethylene or high-density polyethylene through chlorination or chlorosulfonation. It is a chlorine-containing special elastomer material with a highly saturated chemical structure. Due to the chlorosulfonyl active group contained in its molecular structure, it exhibits high activity, excellent chemical medium corrosion resistance, ozone oxidation resistance, oil erosion resistance and flame retardancy, as well as weather resistance, Heat resistance, ion radiation resistance, low temperature resistance, abrasion resistance and electrical insulation, belong to high-performance special rubber varieties, and are widely used in wire and cable, waterproof membrane, automobile industry and other fields. [0003] In or...

Claims

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Application Information

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IPC IPC(8): C08L23/34C08K9/06C08K9/04C08K3/22C08K3/26C08K3/04
CPCC08K9/06C08K9/04C08K3/22C08K3/26C08K3/04C08K2003/265C08K2003/2241C08L23/34
Inventor 裴友伟何延钟
Owner XIAMEN FUSTE RUBBER & PLASTIC
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