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Chlorinated polyethylene rubber material

A technology of chlorinated polyethylene and rubber materials, applied in the field of rubber, can solve problems such as poor compression set performance, affecting product performance and appearance, and easy to produce orange peel phenomenon, so as to reduce compression set, good compression set, Good performance of rubber

Active Publication Date: 2012-07-18
浙江久运汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the CM rubber hose currently used has poor compression set performance, and oil leakage is easy to occur during the process of conveying the medium, and the rubber is prone to orange peel during the production and vulcanization process, which affects the performance and appearance of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The raw materials were weighed according to the following proportions: 37% chlorinated polyethylene, 31% carbon black, 13% trioctyl trimellitate, 8% vulcanizing agent (PDM), processing aids (internal release agent and microcrystalline wax mixture) 2%, magnesium oxide 7.2%, silicone active agent (octamethylcyclotetrasiloxane) 1.8%.

[0016] Adjust the temperature of the internal mixer to 60~70°C, add chlorinated polyethylene to the internal mixer—processing aid, magnesium oxide, silicon-oxygen active agent and mix for 1 minute—add carbon black and trioctyl trimellitate Ester—pressurize 12Mpa and knead—raise the top bolt when the temperature reaches 85°C, then pressurize 12Mpa to continue mixing, when the temperature reaches 100~110°C, remove glue—filter—add vulcanizing agent—inspect—— Stored in and parked for use, it is the chlorinated polyethylene rubber material sample prepared in the embodiment of the present invention.

[0017] The compression set performance test o...

Embodiment 2

[0019] The raw materials were weighed according to the following proportions: chlorinated polyethylene 36%; carbon black 30%; trioctyl trimellitate 12%; vulcanizing agent (PDM) 10%; processing aids (internal release agent and microcrystalline wax Arbitrary ratio mixture) 2.5%, magnesium oxide 8%; silicone active agent (octamethylcyclotetrasiloxane) 1.5%.

[0020] The preparation method is the same as in Example 1.

Embodiment 3

[0022] Weigh each raw material according to the following proportions: 37.5% chlorinated polyethylene, 31.5% carbon black, 13% trioctyl trimellitate, 7.5% vulcanizing agent (PDM), processing aids (internal release agent and microcrystalline wax Arbitrary ratio mixture) 2%, magnesium oxide 7%, silicone active agent (octamethylcyclotetrasiloxane,) 1.5%.

[0023] The preparation method is the same as in Example 1.

[0024] The following table compares the rubber material of the present invention (rear) with the existing rubber material of the same type (front) and various performance parameters required by the standards of this type of rubber material:

[0025] It can be seen from the above table that the rubber material of the present invention has excellent properties, especially the compression set is 68% (note: according to the PV3307 standard, the prior art is 87%), which greatly reduces the compression set, so that in the transport medium During the process, the perman...

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PUM

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Abstract

The invention discloses a chlorinated polyethylene rubber material. The chlorinated polyethylene rubber material contains the following raw materials in percentage by weight: 36-39% of chlorosulfonated polyethylene, 29-35% of carbon black, 12-16% of triisooctyl trimellitate, 6.5-11.5% of vulcanizing agent, 2-3% of processing additive, 7-8.5% of magnesium oxide and 1.5-2% of silicon-oxygen activating agent. According to the chlorinated polyethylene rubber material, the compression set is 63% and is greatly reduced, so that good buffer performance is gained.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a chlorinated polyethylene rubber material. Background technique [0002] In industrial production, rubber materials are used in many places, such as a type of tubular rubber product used to transport gas, liquid, slurry or granular materials - hose, which needs to be worn and eroded by the transport medium. It can prevent the leakage of the conveying medium, or maintain good compression set in the process of conveying the medium under high pressure. For example, the CM rubber hose currently used has poor compression set performance, and oil leakage is easy to occur during the process of conveying the medium. Moreover, during the vulcanization process of the rubber, it is easy to produce orange peel phenomenon, which affects the performance and appearance of the product. Contents of the invention [0003] The present invention aims at the above-mentioned deficiencies of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08K13/02C08K3/04C08K5/12C08K3/22C08K5/549
Inventor 金英淑
Owner 浙江久运汽车零部件有限公司
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