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Environment-friendly type high-resilience PVC (Polyvinyl Chloride)/NBR (Nitrile-Butadiene Rubber)/BR (Butadiene Rubber) elastomer sealing strip and preparation method thereof

A high-resilience, environmentally friendly technology, applied in the field of environmentally friendly sealing strips, can solve the problems of excessive VOC emissions and secondary pollution, and achieve the effects of reducing VOC emissions, improving elasticity and excellent performance

Active Publication Date: 2017-09-29
浙江仙居星峰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

[0003] PVC / NBR / BR elastomers are used in the manufacture of various seal products, adding a large amount of phthalate plasticizers is easy to precipitate during use, causing "secondary pollution". In an environment with relatively high temperature, it is easy to Lead to excessive VOC emissions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of N,N-dimethylacrylamide graft modified BR: mix 100 parts of BR (cis-butadiene rubber), 10 parts of N,N-dimethylacrylamide, 1 part of bis-tert-butylperoxyisopropyl Benzene was added into an internal mixer, and the reaction was mechanically blended at 180° C. for 10 minutes to prepare N,N-dimethylacrylamide graft-modified BR.

Embodiment 2

[0024] The preparation operation of N,N-dimethylacrylamide graft-modified BR is the same as that in Example 1. The mass ratio of BR, N,N-dimethylacrylamide, and bis-tert-butylperoxycumene is 100:1:0.1, and the reaction is mechanically blended at 150°C for 30 minutes.

Embodiment 3

[0026] The preparation operation of N,N-dimethylacrylamide graft-modified BR is the same as that in Example 1. The mass ratio of BR, N,N-dimethylacrylamide and bis-tert-butylperoxycumene is 100:5:0.3, and the reaction is mechanically blended at 160°C for 20 minutes.

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PUM

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Abstract

The invention relates to environment-friendly sealing strips, and in particular to an environment-friendly type high-resilience PVC (Polyvinyl Chloride) / NBR (Nitrile-Butadiene Rubber) / BR (Butadiene Rubber) elastomer sealing strip and a preparation method thereof. The environment-friendly type high-resilience PVC / NBR / BR elastomer sealing strip is mainly prepared from the following raw materials: 100 parts of PVC, 10 to 70 parts of NBR, 10 to 50 parts of modified BR, 10 to 60 parts of a polyester plasticizing agent, 5 to 20 parts of epoxidized soybean oil, 10 to 60 parts of superfine white carbon black, 10 to 40 parts of carbon black, 1 to 3 parts of stearic acid, 2 to 8 parts of zinc oxide, 2 to 6 parts of a calcium-zinc composite stabilizing agent, 1 to 5 parts of ditert-butyl cumene peroxide and 1 to 3 parts of an anti-aging agent 4010NA. The environment-friendly type high-resilience PVC / NBR / BR elastomer sealing strip disclosed by the invention has the characteristics of good resilience, low mobility, good comprehensive performance and the like, and is suitable for industries such as automobiles, buildings, electric wires and cables and household appliances to use.

Description

technical field [0001] The invention relates to an environment-friendly sealing strip, in particular to an environment-friendly high-resilience PVC / NBR / BR elastomer sealing strip and a preparation method thereof. Background technique [0002] The combination of polyvinyl chloride (PVC) and nitrile rubber (NBR) has a long history, and it is one of the earliest polymers used in combination with rubber and plastic elastomers. PVC and NBR use elastomers to combine the oil resistance, chemical resistance, ozone resistance of PVC and the solvent resistance and elasticity of NBR. At the same time, PVC reinforces NBR. Compared with single NBR, the tensile strength and tear resistance of PVC / NBR combined elastomers are improved, the abrasion resistance, solvent resistance and ozone cracking resistance are significantly improved, and the self-extinguishing performance is improved. However, due to the poor cold resistance and wear resistance of NBR, and the decrease in the cold resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08L51/04C08L67/06C08L91/00C08K13/02C08K3/36C08K3/04C08K5/09C08K3/22
CPCC08K2003/2296C08K2201/003C08L27/06C08L2205/035C08L2205/08C08L9/02C08L51/04C08L67/06C08L91/00C08K13/02C08K3/36C08K3/04C08K5/09C08K3/22
Inventor 应和星陈志勇
Owner 浙江仙居星峰汽车零部件有限公司
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