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Nitrile-butadiene rubber sealing material and preparation method thereof

A technology of nitrile rubber and sealing materials, which is applied in the field of rubber materials, can solve the problems affecting the high and low temperature resistance and medium resistance of nitrile rubber sheaths, achieve high and low temperature resistance and medium resistance, and increase radial resistance Good mechanical strength and medium resistance

Inactive Publication Date: 2015-11-18
宋晓梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The nitrile rubber sealant produced by the existing formula is more expensive, so the higher the sealant content, the higher the cost. If you want to reduce the cost of the nitrile rubber sheath, you need to reduce its content. If the glue content is directly reduced, it will inevitably affect the high and low temperature resistance and medium resistance of the nitrile rubber sheath. How to prepare a nitrile rubber sheath with low cost and excellent high and low temperature resistance and medium resistance Nitrile rubber sealing material has become a technical problem to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of nitrile rubber sealing material, its raw material comprises by weight: nitrile rubber N24140 parts, nitrile rubber N240S40 parts, zinc oxide 1 part, sulfur S-803 part, tetramethyl thiuram disulfide 1 part, promote Agent TMTD2 parts, N-cyclohexyl-2-benzothiazole sulfenamide 0.5 parts, carbon black N-77435 parts, calcined clay 20 parts, stearic acid 2 parts, coumarone 1 part, microcrystalline wax OK19872 parts , 1 part of anti-aging agent RD, 3 parts of anti-aging agent H, 1 part of anti-aging agent, 6 parts of plasticizer TP-90B.

[0014] The preparation method of above-mentioned acrylonitrile-butadiene rubber sealing material comprises the steps of: mixing acrylonitrile-butadiene rubber N241, acrylonitrile-butadiene rubber N240S, zinc oxide, stearic acid, anti-aging agent A, anti-aging agent RD, anti-aging agent H, coumarone and Add microcrystalline wax OK1987 into the internal mixer and knead for 1min, then add carbon black N-774 and calcined clay according t...

Embodiment 2

[0016] A kind of nitrile rubber sealing material, its raw material comprises by weight: nitrile rubber N24160 parts, nitrile rubber N240S20 parts, zinc oxide 4 parts, sulfur S-801 part, tetramethyl thiuram disulfide 2 parts, promote 1 part of agent TMTD, 0.9 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 20 parts of carbon black N-77420 parts, 30 parts of calcined clay, 1 part of stearic acid, 2 parts of coumarone, 19871 parts of microcrystalline wax OK , 3 parts of anti-aging agent RD, 1 part of anti-aging agent H, 3 parts of anti-aging agent, 2 parts of plasticizer TP-90B.

[0017] The preparation method of above-mentioned acrylonitrile-butadiene rubber sealing material comprises the steps of: mixing acrylonitrile-butadiene rubber N241, acrylonitrile-butadiene rubber N240S, zinc oxide, stearic acid, anti-aging agent A, anti-aging agent RD, anti-aging agent H, coumarone and Add microcrystalline wax OK1987 into the internal mixer and knead for 2 minutes, then add carbon bl...

Embodiment 3

[0019] A kind of nitrile rubber sealing material, its raw material comprises by weight: nitrile rubber N24148 parts, nitrile rubber N240S33 parts, zinc oxide 2.4 parts, sulfur S-801.8 parts, tetramethyl thiuram disulfide 1.52 parts, promote Agent TMTD1.5 parts, N-cyclohexyl-2-benzothiazole sulfenamide 0.64 parts, carbon black N-77427 parts, calcined clay 25 parts, stearic acid 1.6 parts, coumarone 1.5 parts, microcrystalline wax 1.65 parts of OK1987, 2.2 parts of antioxidant RD, 2.4 parts of antioxidant H, 1.85 parts of antioxidant A, 3.6 parts of plasticizer TP-90B.

[0020] The preparation method of above-mentioned acrylonitrile-butadiene rubber sealing material comprises the steps of: mixing acrylonitrile-butadiene rubber N241, acrylonitrile-butadiene rubber N240S, zinc oxide, stearic acid, anti-aging agent A, anti-aging agent RD, anti-aging agent H, coumarone and Add microcrystalline wax OK1987 into the internal mixer and mix for 1.5min, then add carbon black N-774 and cal...

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Abstract

The invention discloses a nitrile-butadiene rubber sealing material which is prepared from the following raw materials in parts by weight: 40-60 parts of nitrile-butadiene rubber N241, 20-40 parts of nitrile-butadiene rubber N240S, 1-4 parts of zinc oxide, 1-3 parts of sulfur S-80, 1-2 parts of tetramethyl-thiuram disulfide, 1-2 parts of accelerator TMTD, 0.5-0.9 part of N-cyclohexyl-2-benzothiazole sulfenamide, 20-35 parts of carbon black N-774, 20-30 parts of calcined argil, 1-2 parts of stearic acid, 1-2 parts of coumarone, 1-2 parts of microcrystalline wax OK1987, 1-3 parts of anti-aging agent RD, 1-3 parts of anti-aging agent H, 1-3 parts of anti-aging agent A and 2-6 parts of plasticizer TP-90B. The invention also discloses a preparation method of the nitrile-butadiene rubber sealing material.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a nitrile rubber sealing material and a preparation method thereof. Background technique [0002] The nitrile rubber sealant produced by the existing formula is more expensive, so the higher the sealant content, the higher the cost. If you want to reduce the cost of the nitrile rubber sheath, you need to reduce its content. If the glue content is directly reduced, it will inevitably affect the high and low temperature resistance and medium resistance of the nitrile rubber sheath. How to prepare a nitrile rubber sheath with low cost and excellent high and low temperature resistance and medium resistance Nitrile rubber sealing material has become a technical problem to be solved at present. Contents of the invention [0003] The invention provides a nitrile rubber sealing material and a preparation method thereof. The product has excellent high and low temperature resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L45/02C08L91/06C08K13/02C08K3/22C08K3/06C08K5/09C08K5/47C08K3/04C08K3/34C08K5/40
Inventor 宋晓梅
Owner 宋晓梅
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