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Automobile engine fluorosilicone seal ring sizing material and preparation method thereof

A technology for automotive engines and sealing rings, applied in the field of synthetic rubber, can solve problems such as high labor intensity, low production efficiency, tearing and poor oil resistance, and achieve the effects of improving overall performance, reducing production costs, and improving production efficiency

Active Publication Date: 2013-04-03
平湖市博宏塑料制品厂
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  • Abstract
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AI Technical Summary

Problems solved by technology

Through the improvement of the process, it overcomes the slow "eating" of fluorosilicone rubber in the open mill, easy sticking to the roller, high dust, high labor intensity, uneven dispersion of processing aids, low production efficiency, poor tear and oil resistance in the prior art, Detrimental to workers' occupational safety and other disadvantages

Method used

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  • Automobile engine fluorosilicone seal ring sizing material and preparation method thereof

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Embodiment Construction

[0020] The preparation of fluorosilicone sealing ring compound for automobile engine first weighs 75kg of fluorosilicone rubber, 22kg of styrene-butadiene rubber, 5kg of methyl vinyl silicone rubber, 0.6kg of isooctyl dithioglycolate, 0.6kg of di-n-octyltin, 5kg of zinc oxide, hard Zinc fatty acid 0.8kg, triethylene glycol diisocaprylate 7kg, hydroxyfluorosilicone oil 0.6kg, paraffin 0.4kg, silane coupling agent KH-550 1.5kg, anti-aging agent AW 1.5kg, anti-aging agent 4010NA 0.2kg, modified Sepiolite 14kg, carbon black N330 35kg, modified iron tailings 15kg, rapeseed oil 22kg, vulcanizing agent BP0.6kg, accelerator TMTD0.6kg, accelerator M0.3kg, ferrocene 1.5kg, fatty alcohol polyoxygen Sodium vinyl ether sulfate 0.9kg, diethanolamide 0.9kg,

[0021] The preparation method comprises the following steps:

[0022] (1) Preparation of modified sepiolite:

[0023] Soak the sepiolite with 15-20% hydrochloric acid for 1-2 hours, wash with water until neutral, after drying, add t...

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Abstract

The invention discloses an automobile engine fluorosilicone seal ring sizing material, which is prepared from the following raw materials in parts by weight: 70-80 parts of fluorosilicone rubber, 20-25 parts of styrene butadiene rubber, 4-6 parts of methylvinylsiloxane rubber, 0.5-1.0 part of di-n-octyltin bis(isoctyl thioglycollate), 4-6 parts of zinc oxide, 0.5-1.5 parts of zinc stearate, 5-8 parts of glycol di-2-ethylhexoate, 0.5-1 part of hydroxyl-fluoro silicone oil,, 0.2-0.6 part of paraffin wax, 1-2 parts of silane coupling agent KH-550, 1-2 parts of anti-aging agent AW, 0.1-0.3 part of anti-aging agent 4010NA, 10-15 parts of modified meerschaum, 30-40 parts of carbon black N330, 10-20 parts of modified iron tailings, 20-25 parts of colza oil, 0.5-0.8 part of vulcanizing agent BP, 0.5-1.0 part of accelerating agent TMTD, 0.2-0.5 part of accelerating agent M, 1-2 parts of ferrocene, 0.8-1 part of sodium polyoxyethylene fatty alcohol sulfate, and 0.8-1 part of diethanolamide. The automobile engine fluorosilicone seal ring sizing material has excellent high and low temperature-resistant, oil-proof, solvent-resistant and chemical-resistant performances, and at the same time is good in mechanical property.

Description

technical field [0001] The invention relates to the field of synthetic rubber, in particular to a fluorosilicone sealing ring rubber material for an automobile engine and a preparation method thereof. Background technique [0002] Fluorosilicone rubber has excellent high and low temperature resistance, oil resistance, solvent resistance and chemical resistance. A new type of low temperature sealing material and fuel oil hose. [0003] In the prior art, a basic fluorosilicone raw rubber is used to prepare fluorosilicone compounded rubber through mixing. Due to the different molecular weight distribution and average molecular weight of different fluorosilicone raw rubber, the properties of fluorosilicone rubber compounded by mixing a single raw rubber are different. The high molecular weight of raw rubber has good tensile strength and tear strength. Good oil resistance, but poor processability and difficult mixing. The low molecular weight of raw rubber makes it difficult t...

Claims

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Application Information

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IPC IPC(8): C08L83/08C08L9/06C08L83/07C08K13/06C08K9/04C08K9/02C08K3/34C08K3/00C08K5/58C08K3/22C08K5/098C08K3/04
Inventor 王立新
Owner 平湖市博宏塑料制品厂
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