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Method for preparing flame-retardant water-based polyurethane coating and adhesive for building

A technology of water-based polyurethane and adhesives, which can be applied in the direction of fireproof coatings, adhesive additives, coatings, etc., and can solve the environmental hazards of heavy metal tin, etc.

Inactive Publication Date: 2015-08-26
朱明德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dibutyltin dilaurate is often used as a catalyst in the synthesis of polyurethane, but since the heavy metal tin is harmful to the environment with the degradation of polyurethane, efficient and non-toxic catalysts are screened is a major problem in the synthesis of polyurethane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0037] The specific embodiment is further explained to the present invention

example 1

[0039] (1) Illectual measuring dihydrate lithium 21g, 16g hexamide, sulfate acrylic 3g, acetone 2g, and N-ethyl methyline 0.8g are mixed in a cup.

[0040] (2), the 25g five -phosphorus and liquid A12g, stirred 40min at room temperature to obtain a decentralized liquid of the five phosphorus dioxide; add 38.2g of tetraxymethyl sulfate, and the hex chlorothelia three phosphorus 腈 52.6g to the above five oxidationIn the decentralized liquid of the two phosphorus, stir up to 90 ° C, the insulation and stirring reaction is 3h, so that it fully reacts and get product A; add trimethic hydroxymeropane 81.4g to the product A, the stirring reaction 2h, the temperature of the reaction system is 90 ℃, Get product B; add 92.8g anhydride in the product B, hex chlorotripotinum triple phosphorus 腈 8g, amino tritethyl acid 22g and chromicate (triabenzolic silane) ester 5.3g, stirring reaction 4h, response reaction, reaction reaction, reaction reaction, responseThe temperature is 90 ° C, add 3g of...

example 2

[0044] (1) Illectual measuring dihydal lithium borate 21g, 16g hexamide, sulfate acrylic 3g, acetone 2g, and dual (2-methoxyl) ethyl-based sulfurization sulfurmum 0.8gAfter forming a liquid A;

[0045] (2), the 25g five -phosphorus and liquid A16G, stirred 30min at room temperature to obtain a decentralized liquid of the five phosphorus dioxide; add 37.2g of tetraxyticate sulfate, and the hex chlorotripular three phosphorus 腈 42.6g to the five oxidation twoIn the dispersing fluid of phosphorus, stir up to 100 ° C, the insulation and stirring reaction is 5h, so that it fully reacts and get product A; add trimethic hydroxymerine 80.4g to the product A system, Obtical Product B; add acetic anhydride 91.8g to the product B system B system B, hex chlorine rings triangular 8g, tea saponin and chromate (triabenohlsiline) ester 4.3g, 90 ° C stirring reaction 4h, joinEthyramine tetraxyl acid sodium 2g, the reaction at 70 ° C is 1h, a colorless transparent liquid C, which is an expansion fl...

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PUM

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Abstract

The invention discloses a method for preparing a flame-retardant water-based polyurethane coating and adhesive. The method comprises the following steps: mixing PTMG and isocyanate to obtain a polyurethane prepolymer A in the presence of a catalyst (dibutyltin dilaurate); adding an intumescent flame retardant into the polyurethane prepolymer A, then adding triethylamine for neutralization reaction, adding water for emulsification, adding ethylenediamine tetramethylenephosphonic acid and EDTA dipotassium salt, and regulating the system pH to be 7-8 to obtain the flame-retardant water-based polyurethane coating and adhesive. The polyurethane material is high in flame retardant property, environment-friendly and low in price, and can meet the low-cost requirement of the market.

Description

Technical field [0001] The preparation method of polyurethane involved in the present invention specially involves a preparation method for the construction of flame retardant water -retardant polyurethane coatings and adhesives. Background technique [0002] Water -based polyurethane is a polyurethane resin containing hydrophilic groups in polyurethane molecular chains. It has strong affinity with water. It uses specific processes to disperse in water and form a stable system.Water -based polyurethane is mainly used in leather coating, textile printing and dyeing, papermaking, architectural coatings, adhesives, etc., and almost all of them are flammable materials. If these materials are used without flame retardant, it will inevitably become a hidden safety hazard that causes fires.EssenceThe flames of water -based polyurethane are one of the important directions for the functionalization of water -based polyurethane. [0003] Polyurethane synthesis is often used as a catalyst i...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D5/18C09J175/08C09J11/06C08G18/48C08G18/10
CPCC09D175/08C08G18/10C08G18/4854C08G18/6685C08K3/32C08K5/17C08K5/521C08K5/5333C08K5/5399C08K5/5419C08K5/55C08K13/02C08L2201/02C09D5/185C09J11/06C09J175/08
Inventor 朱明德
Owner 朱明德
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