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Acrylate rubber modified silicone rubber oil-resistant material and preparation method thereof

An acrylate and rubber modification technology, applied in the field of modified silicone rubber, can solve the problems of complex production process and high price and cost, and achieve the effects of overcoming uneven dispersion, low production cost and improving oil resistance

Inactive Publication Date: 2013-09-25
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a kind of oil-resistant material of acrylate rubber modified methyl vinyl silicone rubber and its preparation method, to overcome the shortcomings of existing oil-resistant silicone rubber products, such as complex production process and high price and cost, and to obtain a material that can meet general oil-resistant Oil-resistant silicone rubber material

Method used

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  • Acrylate rubber modified silicone rubber oil-resistant material and preparation method thereof
  • Acrylate rubber modified silicone rubber oil-resistant material and preparation method thereof
  • Acrylate rubber modified silicone rubber oil-resistant material and preparation method thereof

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Embodiment 1

[0022] In the present embodiment, the raw materials are prepared according to the following formula:

[0023]

[0024] In this embodiment, the acrylate rubber modified silicone rubber oil-resistant material is manufactured through the following steps:

[0025] a. Knead 100 parts of methyl vinyl silicone rubber raw rubber and 5 parts of polyvinyl siloxane in a kneader by mass parts for 2 minutes;

[0026] b. Add 50 parts of precipitated silica and 3 parts of coupling agent KH570 in 3 times according to parts by mass, and fully knead for 10 minutes after each addition to obtain a silicone rubber compound with better performance;

[0027] c. Heat up the temperature of the silicone rubber compound to 120°C, add 5 parts of compatibilizer, 20 parts of acrylate rubber and 1.5 parts of anti-aging agent in parts by mass, knead in vacuum for 15 minutes, cool down to 80°C with cooling water, and then add 1.5 parts Cross-linking agent dicumyl peroxide and 0.5 parts of 2,5-dimethyl-2,5...

Embodiment 2

[0030] In the present embodiment, the raw materials are prepared according to the following formula:

[0031]

[0032] In this embodiment, the acrylate rubber modified silicone rubber oil-resistant material is manufactured through the following steps:

[0033] a. Knead 100 parts of methyl vinyl silicone rubber raw rubber and 8 parts of polyvinyl siloxane in a kneader by mass parts for 3 minutes;

[0034] b. Add 60 parts of precipitated white carbon black and 5 parts of coupling agent KH560 in 4 times according to parts by mass, and fully knead for 15 minutes after each addition to obtain a silicone rubber compound with better performance;

[0035] c. Heat up the temperature of the silicone rubber compound to 130°C, add 15 parts of compatibilizer, 60 parts of acrylate rubber and 3 parts of anti-aging agent in parts by mass, knead in vacuum for 25 minutes, cool down to 80°C with cooling water, add 1.8 parts of Combine dicumyl peroxide and 0.6 parts of 2,5-dimethyl-2,5-bis(te...

Embodiment 3

[0038] In the present embodiment, the raw materials are prepared according to the following formula:

[0039]

[0040] In this embodiment, the acrylate rubber modified silicone rubber oil-resistant material is manufactured through the following steps:

[0041] a. Knead 100 parts of methyl vinyl silicone rubber raw rubber with 8 parts of polyvinyl siloxane in a kneader for 3 minutes in parts by mass;

[0042] b. Add 60 parts of fumed white carbon black and 5 parts of coupling agent KH570 in 4 times in parts by mass, and fully knead for 15 minutes after each addition to obtain a silicone rubber compound with better performance;

[0043] c. Heat up the temperature of the silicone rubber compound to 140°C, add 60 parts of acrylate rubber and 3 parts of anti-aging agent in parts by mass, knead in vacuum for 30 minutes, cool down to 80°C with cooling water, add 1.8 parts of crosslinking agent diisoperoxide Propylbenzene and 0.6 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexa...

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Abstract

The invention discloses an acrylate rubber modified silicone rubber oil-resistant material and a preparation method thereof. The invention is characterized in that acrylate rubber is used as a modifier, an acetic acid-vinyl acetate copolymer is used for compatibilization, a composite cross-linking agent is employed, and the obtained acrylate rubber modified silicone rubber oil-resistant material has Shore hardness of 60 to 75, tensile strength of no less than 7 MPa, elongation at break of no less than 300%, tearing strength of no less than 15 kN / m and mass variation of no more than 30% in oil resistance test with ASTM No. 3 standard oil at a temperature of 150 DEG C for 70 h. The material provided by the invention has characteristics of both acrylate rubber and silicone rubber, excellent resistance to high and low temperature and to oil and superior mechanical properties. The preparation method provided by the invention has the advantages of simple process and low cost; and the prepared material can be used for an electric wire, a cable, a damping sealing device and the like in high and low temperature oil-resistant environments.

Description

technical field [0001] The invention belongs to the technical field of modified silicone rubber, and in particular relates to an oil-resistant material of acrylate rubber modified methyl vinyl silicone rubber and a preparation method thereof. technical background [0002] Silicone rubber has high and low temperature resistance, ultraviolet resistance, radiation resistance, weather resistance, electrical insulation, water repellency, flame retardant, high air permeability, physiological inertia, etc. It has been widely used in medical and health care, daily necessities, etc., and has become an important and indispensable new polymer material in the national economy. However, the mechanical properties of silicone rubber are not good. The commonly used methyl vinyl silicone rubber is reinforced with white carbon black, the tensile strength is ≤6MPa, the oil resistance and solvent resistance are poor, and the swelling phenomenon is obvious, which limits its application in more i...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L33/04C08K13/02C08K5/14C08K5/5425C08K3/36B29C35/02
Inventor 丁运生卢旭鑫朱锦苏江林谢金刚孙晓红殷俊
Owner HEFEI UNIV OF TECH
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