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High-temperature-resistant sealant and preparation method thereof

A sealant and high-temperature-resistant technology, applied in the field of sealant, can solve the problems of high-temperature resistance, radiation resistance, ozone resistance, and water resistance at the same time, and achieve excellent high-temperature resistance, strong impact resistance, and good comprehensive performance.

Inactive Publication Date: 2016-08-24
杨玉双
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing sealants cannot have special properties such as high temperature resistance, radiation resistance, ozone resistance, and water resistance at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A high temperature resistant sealant, comprising the following raw materials in parts by weight: 50 parts of natural rubber, 5 parts of styrene-butadiene rubber, 10 parts of nitrile rubber, 5 parts of calcium sulfate whiskers, 10 parts of ceramic fiber, 10 parts of rice bran wax, cashew nut shell 30 parts of oil, 5 parts of fumed silica, 5 parts of nano-calcium carbonate, 10 parts of sepiolite powder, 10 parts of epoxy linseed oil, 6 parts of coumarone resin, 0.5 parts of dibutyltin diacetate, 2-mercaptan 3 parts of benzothiazole, 5 parts of acetyl triethyl citrate, 1 part of dimolybdenum boride, 6 parts of modified diabase powder, and 5 parts of bonding aid.

[0014] The modified diabase powder is prepared by the following steps: first roast the diabase at 400° C. for 5 hours, then soak the diabase with 15% hydrochloric acid for 3 hours, let stand, centrifuge, and then wash with deionized water To neutral, after drying, add vinyltriethoxysilane equivalent to 3% of soli...

Embodiment 2

[0018] A high temperature resistant sealant, comprising the following raw materials in parts by weight: 60 parts of natural rubber, 6 parts of styrene-butadiene rubber, 8 parts of nitrile rubber, 6 parts of calcium sulfate whiskers, 20 parts of ceramic fiber, 12 parts of rice bran wax, cashew nut shell 35 parts of oil, 6 parts of fumed silica, 6 parts of nano-calcium carbonate, 12 parts of sepiolite powder, 11 parts of epoxy linseed oil, 7 parts of coumarone resin, 1.2 parts of dibutyltin diacetate, 2-mercaptan 4 parts of benzothiazole, 7 parts of acetyl triethyl citrate, 2 parts of dimolybdenum boride, 7 parts of modified diabase powder, and 10 parts of bonding aid.

[0019] The modified diabase powder is prepared by the following steps: first roast the diabase at 500°C for 4 hours, then soak the diabase with 16% hydrochloric acid for 3 hours, let stand, centrifuge, and then wash with deionized water To neutral, after drying, add vinyltriethoxysilane equivalent to 4% of solid...

Embodiment 3

[0023] A high temperature resistant sealant, comprising the following raw materials in parts by weight: 70 parts of natural rubber, 5 parts of styrene-butadiene rubber, 5 parts of nitrile rubber, 7 parts of calcium sulfate whiskers, 30 parts of ceramic fiber, 13 parts of rice bran wax, cashew nut shell 40 parts of oil, 6 parts of fumed white carbon black, 8 parts of nano calcium carbonate, 15 parts of sepiolite powder, 12 parts of epoxy linseed oil, 8 parts of coumarone resin, 1.5 parts of dibutyltin diacetate, 2-mercaptan 5 parts of benzothiazole, 10 parts of acetyl triethyl citrate, 2 parts of dimolybdenum boride, 10 parts of modified diabase powder, and 12 parts of bonding aid.

[0024] The modified diabase powder is prepared by the following steps: first roast the diabase at 600° C. for 3 hours, then soak the diabase with 20% hydrochloric acid for 3 hours, let stand, centrifuge, and then wash with deionized water To neutral, after drying, add vinyltriethoxysilane equivalen...

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PUM

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Abstract

The invention discloses a high-temperature-resistant sealant and a preparation method thereof. The high-temperature-resistant sealant comprises, by weight, 50-70 parts of natural rubber, 5-6 parts of styrene butadiene rubber, 5-10 parts of acrylonitrile butadiene rubber, 5-7 parts of calcium sulfate crystal whisker, 10-30 parts of ceramic fiber, 10-13 parts of rice bran vinegar, 30-40 parts of cashew nut shell oil, 5-6 parts of gas-phase white carbon black, 5-8 parts of nano calcium carbonate, 10-15 parts of sepiolite powder, 10-12 parts of epoxy linseed oil, 6-8 parts of coumarone resin, 0.5-1.5 parts of dibutyl tin diacetate, 3-5 parts of 2-mercaptobenzothiazole, 5-10 parts of triethyl acetyl citrate, 1-2 parts of molybdenum boride, 6-10 parts of modified dolerite powder and 5-12 parts of a binding auxiliary. The high-temperature-resistant sealant has excellent resistance to high temperature, oil and radiation, has the advantages of high crack resistance and impact resistance and is high in compactness and comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a high-temperature-resistant sealant and a preparation method thereof. Background technique [0002] The sealant is mainly used for the sealing of various openings and cable trays formed when cables, air ducts, oil pipes, and air pipes pass through walls and floors. Due to the requirements of special environments, sealants used in certain fields must have high performance such as radiation resistance, ozone resistance, aging resistance, high temperature resistance, and flame retardancy. Existing sealants cannot have special properties such as high temperature resistance, radiation resistance, ozone resistance, and water resistance at the same time. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a sealant with excellent high temperature resistance, oil resistance and radiation resistance, ...

Claims

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Application Information

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IPC IPC(8): C09J107/00C09J109/06C09J109/02C09J191/06C09J191/00C09J145/02C09J11/04C09J11/06
CPCC09J107/00C08K2201/011C08K2201/014C08L2201/08C08L2205/02C08L2205/025C08L2205/035C09J11/04C09J11/06C08L9/06C08L9/02C08L91/06C08L91/00C08L45/02C08K13/06C08K9/08C08K9/06C08K9/02C08K9/00C08K7/08C08K7/04C08K3/36C08K2003/265C08K3/34
Inventor 杨玉双
Owner 杨玉双
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