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Nitrile butadiene rubber

A technology of nitrile rubber and parts by weight, which is applied in the field of rubber, can solve problems such as the poor ozone resistance of nitrile rubber, and achieve the effects of improving ozone resistance, heat resistance and hardness

Active Publication Date: 2014-03-12
临沂星火知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But its ozone-resistant performance of above-mentioned improved nitrile rubber is not good, need to provide a kind of more ozone-resistant nitrile rubber

Method used

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  • Nitrile butadiene rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Nitrile rubber consisting of the following components in parts by weight:

[0086] Nitrile rubber 50 parts

[0087] 0.5 parts of stearic acid

[0088] Zinc oxide 2 parts

[0089] 3 parts diethyl phthalate

[0090] Polyethylene wax 1 part

[0091] Accelerator TMTD 0.5 part

[0092] Alkyl ether adipate 3 parts

[0093] Calcium silicate 2 parts

[0094] 1 part of N,N'-diarylbutyl-p-phenylenediamine

[0095] 20 parts of carbon black.

Embodiment 2

[0097] A kind of nitrile rubber, is made up of following components by weight parts:

[0098] Nitrile rubber 80 parts

[0099] Stearic acid 1.0 parts

[0100] 3 parts zinc oxide

[0101] Diethyl phthalate 8 parts

[0102] Polyethylene wax 3 parts

[0103] Accelerator TMTD 1.5 parts

[0104] Alkyl ether adipate 5 parts

[0105] Calcium silicate 5 parts

[0106] 3 parts of N,N'-diarylbutyl p-phenylenediamine

[0107] 30 parts of carbon black.

Embodiment 3

[0109] Nitrile rubber consisting of the following components in parts by weight:

[0110] Nitrile rubber 70 parts

[0111] 0.8 parts of stearic acid

[0112] Zinc oxide 2.5 parts

[0113] Diethyl phthalate 5 parts

[0114] Polyethylene wax 2 parts

[0115] Accelerator TMTD 0.8 parts

[0116] Alkyl ether adipate 4 parts

[0117] 3 parts calcium silicate

[0118] 2 parts of N,N'-diarylbutyl-p-phenylenediamine

[0119] 25 parts of carbon black.

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Abstract

The invention relates to the field of rubber, and particularly relates to nitrile butadiene rubber which consists of the following components in parts by weight: 50-80 parts of nitrile butadiene rubber, 0.5-1.0 part of stearic acid, 2-3 parts of zinc oxide, 3-8 parts of diethyl phthalate, 1-3 parts of polyethylene wax, 0.5-1.5 parts of accelerant, 3-5 parts of alkyl ether adipate, 2-5 parts of calcium silicate, 1-3 parts of antiozonant, 0-3 parts of anti-aging agent and 20-30 parts of carbon black. The nitrile butadiene rubber provided by the invention has the beneficial effects that the anti-ozone property of nitrile butadiene rubber is effectively improved due to addition of polyethylene wax and antiozonant and the heat resistance and hardness of nitrile butadiene rubber are effectively improved due to addition of the filler agents including diethyl phthalate and calcium silicate,.

Description

[0001] The invention relates to the field of rubber, in particular to a nitrile rubber. Background technique [0002] Nitrile rubber is also called butadiene-acrylonitrile rubber, referred to as NBR, with an average molecular weight of about 700,000. Off-white to light yellow massive or powdery solid, relative density 0.95-1.0, soluble in ethyl acetate, butyl acetate, chlorobenzene, methyl ethyl ketone, etc. Nitrile rubber has excellent oil resistance, second only to polysulfide rubber and fluorine rubber, and has excellent wear resistance and air tightness. The disadvantage of nitrile rubber is that it is not resistant to ozone and aromatic, halogenated hydrocarbons, ketones and ester solvents, so it is not suitable for insulating materials. The heat resistance is better than that of styrene-butadiene rubber and neoprene, and it can work at 120°C for a long time. Air tightness is second only to butyl rubber. The performance of nitrile rubber is affected by the content of a...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L23/06C08K13/02C08K5/18C08K5/12C08K3/34C08K3/04
Inventor 车春玲
Owner 临沂星火知识产权服务有限公司
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