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Bi-component polysulfide fireproofing flame retardant sealant and preparation method thereof

A fire-retardant, two-component technology, which is applied in chemical instruments and methods, adhesives, and other chemical processes, can solve the problems of unsatisfactory flame-retardant performance and comprehensive performance, and achieve significant economic and social benefits. Low consumption and convenient construction

Active Publication Date: 2011-09-21
ZHENGZHOU ZHONGYUAN SILANDE HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the occurrence of fires in recent years, ordinary polysulfide sealants can no longer meet the needs
In addition to the function of common polysulfide sealants, there are also some sealants with other additional functions on the market. As the Chinese Patent Gazette discloses a kind of application number 01144409.6, the name is: "two-component polysulfide sealant The invention patent of "waterproof sealant", this kind of sealant has also achieved a certain effect in the waterproof performance of polysulfide glue; in addition, the Chinese Patent Gazette also discloses an application number of 200610150004.3, the publication number is CN1958709A, and the name is: " Adhesive polysulfide sealant "invention patent, this kind of sealant contains A component and B component, wherein A component is composed of liquid polysulfide rubber, filler, plasticizer, silane coupling agent, etc.; B component group It can be used as vulcanizing agent, plasticizer, polymerization inhibitor, main agent small molecule treatment agent, colorant and accelerator, etc. Although this kind of sealant has achieved certain effects in the bonding performance of polysulfide adhesives, its flame retardant performance And overall performance is not ideal

Method used

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  • Bi-component polysulfide fireproofing flame retardant sealant and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] The two-component polysulfide fireproof and flame retardant sealant of the present invention is prepared from the following components in parts by weight:

[0029] A component:

[0030] 100 parts of liquid polysulfide rubber

[0031] Chlorinated paraffin 60 parts

[0032] Aluminum hydroxide 80 parts

[0033] Active ground calcium carbonate 120 parts

[0034] Sulfur 0.5 parts

[0035] KH-550 1.5 parts

[0036] The preparation method of component A is as follows: at room temperature, the liquid polysulfide rubber and chlorinated paraffin of the above-mentioned parts by weight are added in a vacuum mixer, and the stirring is stopped after mixing at a vacuum degree of 0.06Mpa for 10 minutes; then adding aluminum hydroxide, Active ground calcium carbonate, KH-550 and sulfur are stirred for 40 minutes under a vacuum of 0.06Mpa to prepare component A. During production, the temperature should be measured. If the temperature of the glue exceeds 80°C, it should be cooled wi...

Embodiment 2

[0046] The two-component polysulfide fireproof and flame retardant sealant of the present invention is prepared from the following components in parts by weight:

[0047] A component:

[0048] 100 parts of liquid polysulfide rubber

[0049] Cresyl diphenyl phosphate 50 parts

[0050] Magnesium hydroxide 100 parts

[0051] Active ground calcium carbonate 80 parts

[0052] Active light calcium carbonate 50 parts

[0053] Sulfur 0.5 parts

[0054] KH-560 1.5 parts;

[0055] The preparation method of component A is as follows: at room temperature, add the above-mentioned liquid polysulfide rubber and toluene diphenyl phosphate into a vacuum mixer, mix at a vacuum of 0.075Mpa for 15 minutes and stop stirring; then add hydrogen Magnesium, active heavy calcium carbonate, active light calcium carbonate, KH-560 and sulfur, and stir for 30 minutes under a vacuum of 0.075Mpa to obtain component A. Measure the temperature during production, if the glue temperature exceeds 80°C , us...

Embodiment 3

[0065] The two-component polysulfide fireproof and flame retardant sealant of the present invention is prepared from the following components in parts by weight:

[0066] A component:

[0067] 100 parts of liquid polysulfide rubber

[0068] Triaryl phosphate 70 parts

[0069] Decabromodiphenyl ether 80 parts

[0070] Active ground calcium carbonate 90 parts

[0071] Active light calcium carbonate 40 parts

[0072] Sulfur 0.5 parts

[0073] KH-560 2 copies

[0074] The preparation method of component A is as follows: at room temperature, add the liquid polysulfide rubber and triaryl phosphate ester in the above parts by weight into a vacuum mixer, mix for 9 minutes at a vacuum degree of 0.095Mpa and stop stirring; then add decabromobi Phenyl ether, active heavy calcium carbonate, active light calcium carbonate, KH-560 and sulfur, and stir for 25 minutes under a vacuum of 0.095Mpa to obtain component A. Measure the temperature during production. If the glue temperature exc...

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Abstract

The invention relates to a bi-component polysulfide fireproofing flame retardant sealant and a preparation method thereof, wherein the bi-component polysulfide fireproofing flame retardant sealant is prepared from the following components according to parts by weight: component A: 50-100 parts of liquid polysulfide rubber, 30-70 parts of flame retardant plasticizer, 50-150 parts of flame retardantfiller, 60-200 parts of calcium carbonate, 0.3-1.2 parts of main agent micro-molecular finishing agent and 0.5-1.5 parts of silane coupling agent; component B: 10-30 parts of manganese dioxide, 20-60parts of plasticizer, 1-3 parts of semi-strengthening agent carbon black and 0.4-1.5 parts of accelerant. The preparation method comprises the following steps of: mixing, stirring, vacuumizing, inspecting and packaging all the ingredients of component A; and mixing, stirring, vacuumizing, grinding, inspecting and packaging all the ingredients of component B. The sealant can be used by uniformly mixing A and B according to the mass rate of A: B being equal to 100:6-100:12. the sealant has good flame retardant property that is tested to be FV-0 level according to GB / T 2408-1996, and the oxygenindex is tested to be 36.6 percent according to GB / T 2406-1993, and the both levels reach or exceed state-specified standards,.

Description

technical field [0001] The present invention relates to a two-component polysulfide sealant, in particular to a two-component polysulfide fire-proof and flame-retardant sealant, and also relates to a preparation method of the fire-proof and flame-retardant sealant, which belongs to the synthesis of polymer building materials and application areas. Background technique [0002] Polysulfide sealant has the advantages of low air permeability, good bonding performance, good oil resistance and solvent resistance, etc. It is widely used in the edge sealing of various insulating glass and is an excellent building sealant. The known polysulfide sealant is a two-component sealing material made of liquid polysulfide rubber as the main agent, adding appropriate amount of fillers and additives, and mechanically mixing. However, with the frequent occurrence of fires in recent years, the common polysulfide sealant can no longer meet the needs. In addition to the function of common polys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J181/04C09J9/00C09J11/06C09J11/04C09K3/10
Inventor 张德恒崔洪张燕红段爱娟邢凤群张晓斐王丽军张敏
Owner ZHENGZHOU ZHONGYUAN SILANDE HIGH TECH CO LTD