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Nitrile butadiene rubber anti-aging modified material and preparation method thereof

A modified material and technology of nitrile rubber, applied in the field of nitrile rubber anti-aging modified material and its preparation, can solve problems such as insufficient aging resistance, achieve good aging resistance enhancement effect, improve aging resistance, and prepare Simple and reliable method

Inactive Publication Date: 2018-03-09
SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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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 overcome the defect of existing nitrile rubber material aging resistance deficiency, provide a kind of nitrile rubber aging resistance modified material and preparation method thereof; The nitrile rubber is compounded, and the nano-calcium carbonate is uniformly dispersed in the nitrile rubber system, and the obtained nitrile rubber modified material has excellent aging resistance, which is beneficial to the application of nitrile rubber in more fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) 28 parts of nano-calcium carbonate were treated with 0.5 part of distearoyloxyisopropoxy aluminate;

[0033] (2) Coating the nano-calcium carbonate treated with the coupling agent with 3.5 parts of triethanolamine and 3.5 parts of triphenyl phosphite;

[0034] (3) Mix the coated nano-calcium carbonate with 70 parts of nitrile rubber with a degree of polymerization of 900, and then extrude in a parallel electric field with an electric field strength of 2.0kv / m and a constant electric field direction to obtain a mixture ;

[0035] (4) Mix the mixture obtained in step 3 with 25 parts of polyvinyl acetate with a degree of polymerization of 320, 0.4 parts of ethyleneimine, 2 parts of ultraviolet absorber, and 2 parts of antioxidant, and then extrude to obtain Nitrile rubber modified material.

Embodiment 2

[0037] (1) Treat 15 parts of nano-calcium carbonate with 0.3 part of distearoyloxyisopropoxy aluminate;

[0038] (2) Coating the nano-calcium carbonate treated with the coupling agent with 2.5 parts of triethanolamine and 2.5 parts of triphenyl phosphite;

[0039] (3) Mix the coated nano-calcium carbonate with 65 parts of nitrile rubber with a degree of polymerization of 1200 and extrude in an electric field with an electric field strength of 2.8kv / m to obtain a mixture;

[0040] (4) Mix the mixture obtained in step 3 with 20 parts of polyvinyl acetate with a degree of polymerization of 280, 0.3 parts of ethyleneimine, 1 part of ultraviolet absorber, and 3 parts of antioxidant, and then extrude to obtain Nitrile rubber modified material.

Embodiment 3

[0042] (1) Treat 20 parts of nano-calcium carbonate with 0.8 part of distearoyloxyisopropoxyaluminate;

[0043] (2) Coating the nano-calcium carbonate treated with the coupling agent with 5 parts of triethanolamine and 5 parts of triphenyl phosphite;

[0044] (3) Mix the coated nano-calcium carbonate with 75 parts of nitrile rubber with a degree of polymerization of 600, and then extrude in a parallel electric field with an electric field strength of 1.5kv / m and a constant electric field direction to obtain a mixed material;

[0045] (4) Mix the mixture obtained in step 3 with 30 parts of polyvinyl acetate with a degree of polymerization of 380, 0.5 parts of ethyleneimine, 3 parts of ultraviolet absorbers, and 1 part of antioxidant, and then extrude to obtain Nitrile rubber modified material.

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PUM

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Abstract

The invention discloses a nitrile rubber aging-resistant modified material and a preparation method thereof, which comprises the following raw materials in parts by weight: 65-75 parts of nitrile rubber, 20-30 parts of polyvinyl acetate, 15-20 parts of Nano calcium carbonate, 5-10 parts of modifying agent, 0.3-0.8 parts of coupling agent, 0.3-0.5 parts of crosslinking agent, 1-3 parts of ultraviolet absorber, 1-3 parts of antioxidant; The invention compounded nano-calcium carbonate and nitrile rubber after targeted modification treatment, and evenly dispersed nano-calcium carbonate in the nitrile rubber system. The obtained nitrile rubber modified material has excellent aging resistance, which is beneficial to nitrile rubber Application of rubber in more fields.

Description

technical field [0001] The invention relates to the field of modified nitrile rubber materials, in particular to an aging-resistant modified nitrile rubber material and a preparation method thereof. Background technique [0002] Nitrile rubber is produced by butadiene and acrylonitrile by low-temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance, strong adhesion, good water resistance, and air tightness. sex and excellent. Its disadvantages are poor low temperature resistance, poor ozone resistance, poor insulation performance, and slightly lower elasticity. Nitrile rubber is 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. Essential elastic material. [0003] With the continuous improvement of people's requirements for the aging resistance of mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L31/04C08K13/06C08K9/04C08K9/10C08K3/26C08J3/28
CPCC08L9/02C08J3/28C08J5/005C08J2309/02C08K2003/265C08K2201/003C08K2201/011C08L2312/00C08L31/04C08K13/06C08K9/04C08K9/10C08K3/26
Inventor 舒春柳
Owner SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD