Oil-proof and ozone-resistant nitrile butadiene rubber

A technology of nitrile rubber and ozone resistance, applied in the field of nitrile rubber, can solve the problems of decreased mechanical strength or fatigue resistance, unsatisfactory ozone resistance, affecting normal use, etc., and achieves good fatigue resistance, oil resistance and ozone resistance. The effect of strong ability and good resistance

Inactive Publication Date: 2019-02-01
ZHEJIANG HONGLEE AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, nitrile rubber materials are generally used, but the ozone resistance of nitrile rubber materials cannot meet the long-term work under the condition of 100pphm, which needs to be solved urgently
[0003] In addition, the use of conventional rubber products such as constant velocity universal joint dust jackets and sealing rings in long-term oily and ozone environments, especially polar oils and high ozone environments, leads to the high temperature resistance and high temperature resistance of synthetic rubber. The ability to resist ozone, mechanical strength or fatigue is reduced and affect normal use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An oil-resistant and ozone-resistant nitrile rubber, prepared from the following components: 100kg of nitrile rubber, 6kg of zinc oxide, 1kg of stearic acid, 2kg of paraffin wax, 2kg of microcrystalline wax, 5kg of coumarone resin, and 3kg of magnesium oxide , oil absorbent (vegetable ointment, commercially available, French LEFRANT-RUBCO company, model: BROWN 911) 2kg, plasticizer (dioctyl sebacate) 10kg, carbon black mixture 60kg, filler 15kg, anti-aging agent mixture Material 5kg, accelerator mixture 2.5kg, vulcanizing agent (sulfur) 0.7kg. The anti-aging agent mixture is anti-aging agent RD, anti-aging agent MB, and anti-aging agent NBC, and the weight ratio of the three is: anti-aging agent RD: anti-aging agent MB: anti-aging agent NBC=2:1:2. The accelerator mixture is accelerator CZ, accelerator DM, and accelerator TMTD, and the weight ratio of the three is: accelerator CZ: accelerator DM: accelerator TMTD=0.7:0.8:1. The carbon black mixture is carbon black 330 a...

Embodiment 2

[0043] An oil-resistant and ozone-resistant nitrile rubber, prepared from the following components: 100kg of nitrile rubber, 5kg of zinc oxide, 1.5kg of stearic acid, 3kg of paraffin wax, 2.5kg of microcrystalline wax, 3kg of coumarone resin, and magnesium oxide 2kg, oil absorbent (vegetable ointment, commercially available, French LEFRANT-RUBCO company, model: BROWN 924) 3kg, plasticizer (dioctyl sebacate) 12kg, carbon black mixture 55kg, filler 20kg, antiaging agent Mixed material 6.5kg, accelerator mixed material 2kg, vulcanizing agent (sulfur) 1.5kg.

[0044] The anti-aging agent mixture is anti-aging agent RD, anti-aging agent MB, and anti-aging agent NBC, and the weight ratio of the three is: anti-aging agent RD: anti-aging agent MB: anti-aging agent NBC=2:1.5:3. The accelerator mixture is accelerator CZ, accelerator DM, and accelerator TMTD, and the weight ratio of the three is: accelerator CZ: accelerator DM: accelerator TMTD=1:0.5:2. The carbon black mixture is carbo...

Embodiment 3

[0056] An oil-resistant and ozone-resistant nitrile rubber, prepared from the following components: 100kg of nitrile rubber, 8kg of zinc oxide, 2kg of stearic acid, 2kg of paraffin wax, 3kg of microcrystalline wax, 7kg of coumarone resin, and 4kg of magnesium oxide , oil absorbent (vegetable ointment, commercially available, French LEFRANT-RUBCO company, model: BROWN 11-LG) 5kg, plasticizer (dioctyl sebacate) 15kg, carbon black mixture 65kg, filler 10kg, anti-aging Agent mixture 8kg, accelerator mixture 3kg, vulcanizing agent (sulfur) 0.5kg. The anti-aging agent mixture is anti-aging agent RD, anti-aging agent MB, and anti-aging agent NBC, and the weight ratio of the three is: anti-aging agent RD: anti-aging agent MB: anti-aging agent NBC=3:2:2.5. The accelerator mixture is accelerator CZ, accelerator DM, and accelerator TMTD, and the weight ratio of the three is: accelerator CZ: accelerator DM: accelerator TMTD=0.5:1:1.5. The carbon black mixture is carbon black 330 and carb...

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PUM

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Abstract

The invention discloses an oil-proof and ozone-resistant nitrile butadiene rubber, which is prepared from the following components by weight: 100 parts of nitrile butadiene rubber, 5-8 parts of zinc oxide, 1-2 parts of stearic acid, 2-3 parts of paraffin, 2-3 parts of microcrystalline wax, 3-7 parts of coumarone resin, 2-4 parts of magnesium oxide, 2-5 parts of an oil absorbent, 10-15 parts of a plasticizer, 55-65 parts of a carbon black mixture, 10-20 parts of filler, 5-8 parts of an anti-aging agent mixture, 2-3 parts of a promoter mixture and 0.5-1.5 parts of a vulcanizing agent. The oil-proof and ozone-resistant nitrile butadiene rubber provided by the invention has good anti-oxidation and weather-proof performance, also has good mechanical strength and fatigue resistance, and strong oil resistance and ozone resistance.

Description

technical field [0001] The invention relates to the technical field of rubber production, in particular to an oil-resistant and ozone-resistant nitrile rubber. Background technique [0002] Automobile brake vacuum hose is an important part of automobile braking system. The installation stability of automobile brake vacuum hose directly affects the safety and reliability of automobile operation. Vacuum brake hose is a safety product. Oil resistance requirements are high, and the standard requires that the volume change rate after oil resistance is within 30%. At present, nitrile rubber materials are generally used, but the ozone resistance of nitrile rubber materials cannot meet the long-term work under the condition of 100pphm, which needs to be solved urgently. [0003] In addition, the use of conventional rubber products such as constant velocity universal joint dust jackets and sealing rings in long-term oily and ozone environments, especially polar oils and high ozone e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L91/06C08L45/02C08K13/02C08K3/22C08K5/09C08K5/47
CPCC08K2003/2296C08L9/02C08L2201/08C08L2205/035C08L91/06C08L45/02C08K13/02C08K3/22C08K5/09C08K5/47
Inventor 石守波于明旭袁建平
Owner ZHEJIANG HONGLEE AUTO PARTS
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