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A delayed curing sealant

A sealant and curing type technology, applied in the field of sealants, can solve problems such as leakage, difficulty in filling quality, and consistent injection fluidity

Active Publication Date: 2018-05-08
天津市翔悦密封材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The improvement of the curing speed of the injection is contradictory to the fluidity of the injection required to fill all the cavities, and the existing sealing injection used for high-temperature sealing cannot solve the problem of leaking when the leakage temperature is satisfied. Coordination between injection solidification speed and injection fluidity in the injection process
Due to the fast curing speed, it is difficult to guarantee the filling quality, and leakage often occurs after plugging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, a delayed curing sealant, the sealant uses rubber as the base material, sulfur as the vulcanizing agent, and a vulcanization accelerator, the vulcanization accelerator includes the vulcanization accelerator CZ, and the rubber can be selected from DQJ— Type 270 nitrile rubber.

[0022] Above-mentioned sealing agent, component comprises sulfur, vulcanization accelerator part and rubber, and the weight ratio of sulfur, vulcanization accelerator part and rubber is 1.9:3.0:100, and wherein vulcanization accelerator comprises following component: Tetramethylthiuram di Sulfide, dibenzothiazole disulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzothiazole sulfenamide, tetramethylthiuram disulfide, disulfide The weight ratio of dibenzothiazole sulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzothiazole sulfenamide is 1.0:1.0:0.8:0.5.

[0023] A reinforcing filler, a softener and an activator are added to the above sealant, and the weight ratio ...

Embodiment 2

[0038] Embodiment 2, a delayed curing sealant, the sealant uses rubber as a base material, sulfur as a vulcanizing agent, and a vulcanization accelerator, and the vulcanization accelerator includes a vulcanization accelerator CZ. The rubber is DQJ-270 nitrile rubber.

[0039] The above-mentioned sealant comprises sulfur, vulcanization accelerator parts and rubber, and the weight ratio of sulfur, vulcanization accelerator parts and rubber is 1.95:3.2:100.

[0040] Among them, the vulcanization accelerator includes the following components: tetramethylthiuram disulfide, dibenzothiazole disulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzo Thiazole sulfenamide, tetramethylthiuram disulfide, dibenzothiazole disulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzothiazole sulfenamide The weight ratio is 1.0:1.0:0.8:0.75.

[0041] The above sealant is also added with reinforcing filler, softener and activator, and the weight ratio of reinforcing filler, softener, ...

Embodiment 3

[0058] Embodiment 3, a delayed curing type sealant, the sealant uses rubber as the base material, sulfur as the vulcanizing agent, and a vulcanization accelerator, the vulcanization accelerator includes the vulcanization accelerator CZ. Rubber can choose DQJ-270 nitrile rubber.

[0059] The above-mentioned sealant comprises sulfur, vulcanization accelerator and rubber, and the weight ratio of sulfur, vulcanization accelerator and rubber is 2.0:3.4:100.

[0060] The vulcanization accelerator adopts the following components: tetramethylthiuram disulfide, dibenzothiazole disulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzene Thiazole sulfenamide, tetramethylthiuram disulfide, dibenzothiazole disulfide, N-cycloethylthiophthalimide and N-cyclohexyl-2-benzothiazole sulfenamide The amide weight ratio is 1.0:1.0:0.8:1.0.

[0061] The above sealant is also added with reinforcing filler, softener and activator, and the weight ratio of reinforcing filler, softener, activator...

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PUM

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Abstract

The invention discloses delay solidification type sealant. The delay solidification type sealant is characterized in that rubber is taken as a base material and sulphur as a vulcanizing agent, and a vulcanization accelerator containing vulcanizing agent CA is matched. By the arrangement, solidification speed of an injection agent can be reduced at high temperature, and long-time fluidity of the injection agent before solidification is met.

Description

technical field [0001] The invention relates to a sealant, in particular to a delayed curing sealant. Background technique [0002] At present, when various parts such as equipment, pipelines, and valves in the production device leak due to some reason, the leakage medium is in a state of temperature, pressure, and outward jet flow. Leakage locations: holes in flanges, equipment, pipes, welding defects, threaded joint stuffing box leakage, etc. Leakage medium: water, water vapor, air, oxygen, nitrogen, coal gas, ammonia, liquefied petroleum gas, gasoline, diesel, kerosene, heavy oil, lubricating oil, acid, alkali, ester, alcohol, benzene, various heat carriers, The leakage of all kinds of hydrocarbons, various chemical gases, liquids and other media can be eliminated by this technology. The original closed cavity of the leakage site can be used, or a closed cavity can be established on the leakage site, and the external thrust greater than the pressure of the medium system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L45/02C08K13/04C08K7/24C08K3/06C08K5/40C08K5/47C08K5/12C08K3/34C08K3/22C08K5/09C08K5/43
CPCC08K2201/014C08L9/02C08L45/02C08K13/04C08K7/24C08K3/06C08K5/40C08K5/47C08K5/12C08K3/34C08K2003/2296C08K5/09C08K5/43
Inventor 赵志方
Owner 天津市翔悦密封材料股份有限公司
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