Brominated isobutylene/alkyl styrene polymer and nitrile rubber composite material and preparation method thereof

A technology of brominated isobutylene and alkyl styrene, which is applied in the field of oil-resistant composite materials and its preparation, can solve problems such as cold resistance decline, and achieve the effects of convenient vulcanization, reinforced oil resistance, excellent mechanical properties and oil resistance

Inactive Publication Date: 2018-03-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The more acrylonitrile content, the better the oil resis

Method used

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  • Brominated isobutylene/alkyl styrene polymer and nitrile rubber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Brominated isobutylene / o-methylstyrene polymer and nitrile rubber composite material: the temperature of the open mill is raised to 80°C, the roll distance is adjusted to 1mm, 20 parts of brominated isobutylene / o-methylstyrene polymer, nitrile Add 80 parts of rubber, 8 parts of dioctyl phthalate, and 50 parts of carbon black N550. After the rubber material is covered with rolls, adjust the temperature to 70°C, and then add 4 parts of polytetrafluoroethylene and 3 parts of zinc stearate. , 2 parts of zinc oxide, 3 parts of sulfur, 1 part of accelerator TETD, 2 parts of accelerator CZ, 3 times each for left and right 3 / 4 knives, adjust the roller distance to 0.5mm, knead for 5min, and thin pass 5 times for the next sheet to be mixed. The material is kneaded, and then vulcanized for 40 minutes under the vulcanization conditions of 150 ° C and 9 MPa to obtain the composite material of isobutylene / o-methyl styrene polymer and nitrile rubber.

Embodiment 2

[0028] Brominated isobutylene / m-methylstyrene polymer and nitrile rubber composite material: the temperature of the open mill is raised to 90°C, the roll distance is adjusted to 1mm, 30 parts of brominated isobutylene / m-methylstyrene polymer, nitrile Add 70 parts of rubber, 6 parts of dioctyl phthalate, and 60 parts of carbon black N550. After the rubber material is covered with rolls, adjust the temperature to 70°C, and then add 5 parts of polytetrafluoroethylene and 3 parts of zinc stearate. , 2 parts of zinc oxide, 4 parts of sulfur, 2 parts of accelerator TETD, 1 part of accelerator CZ, 3 times each for left and right 3 / 4 knives, adjust the roller distance to 0.5mm, knead for 6 minutes, and thin pass 5 times for the next sheet to be kneaded The material is vulcanized for 30 minutes under the vulcanization conditions of 160°C and 15MPa to obtain the composite material of isobutylene / m-methylstyrene polymer and nitrile rubber.

Embodiment 3

[0032]Brominated isobutylene / p-methylstyrene polymer and nitrile rubber composite material: the temperature of the open mill is raised to 90°C, the roll distance is adjusted to 1mm, 30 parts of brominated isobutylene / p-methylstyrene polymer, nitrile Add 70 parts of rubber, 5 parts of dioctyl phthalate, and 65 parts of carbon black N550. After the rubber material is rolled, adjust the temperature to 75°C, and then add 6 parts of polytetrafluoroethylene and 3 parts of zinc stearate. , 2 parts of zinc oxide, 5 parts of sulfur, 1 part of accelerator TETD, 3 parts of accelerator CZ, 3 times each for left and right 3 / 4 knives, adjust the roller distance to 0.5mm, knead for 8 minutes, thin pass 5 times and lower the tablet to get the mixture The material is kneaded, and then vulcanized under the vulcanization conditions of 170°C and 12MPa for 30min to obtain the composite material of isobutylene / p-methylstyrene polymer and nitrile rubber.

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PUM

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Abstract

The invention provides a brominated isobutylene/alkyl styrene polymer and nitrile rubber composite material and a preparation method thereof. The composite material prepared with the preparation method provided by the invention has the 300% stress at a definite elongation being 10.5-15.6 MPa, the tensile strength being 21.3-25.5 MPa, the elongation at break being 240%-300% and the mooney viscositybeing 50-60 ML (1+4) 100 DEG C; test results on ASTM3# resistant standard oil are shown as follows: the volume change rate is 3%-8%, and the mechanical properties and the oil resistance are excellent.

Description

technical field [0001] The invention relates to the field of oil-resistant composite materials and the preparation thereof, in particular to a composite oil-resistant material of brominated isobutylene / alkylstyrene polymer and nitrile rubber and a processing and preparation method thereof. Background technique [0002] Nitrile rubber is prepared by emulsion polymerization of butadiene and acrylonitrile. It has excellent oil resistance, abrasion resistance and heat resistance, but has poor low temperature resistance, poor ozone resistance, poor insulation performance and slightly low elasticity. Widely used in the production of various oil-resistant rubber products, various oil-resistant gaskets, gaskets, sleeves, flexible packaging, soft hoses, printing and dyeing rubber rollers, cable rubber materials, etc., and become indispensable in industries such as automobiles, aviation, petroleum, and copying elastic material. There are five types of acrylonitrile mass percentage (%...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L23/28C08L27/18C08K13/02C08K5/12C08K3/04C08K5/098C08K3/22B29B7/72B29C35/02
CPCB29B7/726B29B7/728B29C35/02C08L9/02C08L2205/03C08L23/283C08L27/18C08K13/02C08K5/12C08K3/04C08K5/098C08K2003/2296
Inventor 梁滔魏绪玲赵洪国杨珊珊郑红兵邵卫孟令坤蔡文婧胡海华
Owner PETROCHINA CO LTD
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