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Flame retardant polysulfide sealant and preparation process thereof

A technology of polysulfide sealant and rubber compound, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of high cost, flammability, hidden safety hazards, etc., and achieve the effects of low cost, good elasticity and long service life

Inactive Publication Date: 2014-05-21
衡水大禹工程橡塑科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, polysulfide sealant is a very good sealing material. It has a wide range of applications, convenient construction and very reliable sealing effect. Inflammable products such as esters and butyl benzyl phthalate have caused certain safety hazards
[0003] Now there are polyurethane-type sealing materials on the market, which are very expensive and flammable. How to reduce costs and make them safe and non-flammable has always been a major technical problem that people want to solve for a long time.

Method used

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  • Flame retardant polysulfide sealant and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Component A: 15 parts of liquid polysulfide gum, 53 parts of activated calcium carbonate, 0.5 parts of antioxidant 2,6 di-tert-butyl-p-cresol, 1 part of chlorinated paraffin, 1.5 parts of triphenyl phosphate, phenolic resin 30 parts of dibutyl phthalate solution. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0026] Component B: 55 parts of dibutyl phthalate, 3 parts of zinc oxide, 20 parts of manganese dioxide, 2 parts of vulcanization accelerator diphenylguanidine (D), vulcanization accelerator disulfide tetramethylthiuram (TDTM ) 20 parts, carbon black 3 parts. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0027] Ratio A:B=10:1, mix well. When using, mix components A (white) and B (black) evenly in proportion and apply within 2 hours.

Embodiment 2

[0029] Component A: 25 parts of liquid polysulfide gum, 1.5 parts of white carbon black, 44 parts of activated calcium carbonate, 0.5 parts of antioxidant, 2 parts of chlorinated paraffin, 2 parts of trichloroethyl phosphate, phthalate of phenolic resin 20 parts of dibutyl formate solution, 5 parts of epoxy resin. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0030] Component B: 55 parts of dibutyl phthalate, 3 parts of zinc oxide, 20 parts of manganese dioxide, 2 parts of vulcanization accelerator diphenylguanidine, 20 parts of vulcanization accelerator tetramethylthiuram disulfide, carbon black 3 copies. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0031] Ratio A:B=10:1, mix well.

Embodiment 3

[0033] Component A: 35 parts of liquid polysulfide gum, 2.5 parts of white carbon black, 40 parts of activated calcium carbonate, 2 parts of aluminum hydroxide, 1 part of antioxidant, 2 parts of chlorinated paraffin, 2.5 parts of trichloropropyl phosphate, 5 parts of butyl benzyl phthalate solution of phenolic resin, 10 parts of epoxy resin. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0034] Component B: 55 parts of dibutyl phthalate, 3 parts of zinc oxide, 20 parts of manganese dioxide, 2 parts of vulcanization accelerator diphenylguanidine, 20 parts of vulcanization accelerator tetramethylthiuram disulfide carbon, black 3 copies. Add the above materials into a vacuum-sealed mixer or grinder, and mix thoroughly for 30 minutes.

[0035] Ratio A:B=10:1, mix well.

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Abstract

Relating to the technical field of high polymer sealing material preparation, the invention relates to a flame retardant polysulfide sealant and its preparation process. The sealant comprises component A, a main gum material, and component B, a curing agent. The component A comprises liquid polysulfide original gum, white carbon black, activated calcium carbonate, calcium carbonate, aluminum hydroxide, antioxidant 2, 6 di-tert-butyl p-methylphenol, chlorinated paraffin, a phosphate flame retardant, a dibutyl phthalate solution of phenolic resin, epoxy resin, and other flame retardant; and then component A and component B are fully mixed to obtain the sealant. The preparation process of the invention is simple and has a unique principle. The prepared product not only has a good flame retarding effect, and at the same time has superior corrosion resistance to acid, alkali, salt, oil, and other organic solvents as well as aging resistance. With good elasticity, strength, and extensibility, the prepared polysulfide sealant does not flow under high temperature and does not fracture under low temperature. Characterized by no toxicity, no pollution, and long service life, the polysulfide sealant of the invention is convenient for construction, and has a low cost as well as a wide application range.

Description

technical field [0001] The invention relates to the technical field of preparation of polymer sealing materials. Background technique [0002] With the development of science and technology, polysulfide sealant is a very good sealing material. It has a wide range of applications, convenient construction and very reliable sealing effect. Inflammable products such as esters and butyl benzyl phthalate have caused certain safety hazards. [0003] There are polyurethane-type sealing materials on the market now, which are very expensive and flammable. How to reduce costs and be safe and non-flammable has always been a major technical problem that people want to solve for a long time. Contents of the invention [0004] In order to solve the problem of flame retardant in the prior art, the present invention provides a flame retardant sulfur sealant, which solves the technical problems that people have long wanted to solve for the high cost and flammability of polyurethane-type se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L81/04C08L61/06C08L63/00C08K13/02C08K3/36C08K3/26C08K3/22C08K5/12C08K3/04C08K5/523C08K5/521C09K3/10
Inventor 张全新张虎刘洪斌
Owner 衡水大禹工程橡塑科技开发有限公司
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