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Single-component polyurethane foam caulking agent and preparation method thereof

A technology of polyurethane foam and caulking agent, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc. elastic effect

Inactive Publication Date: 2017-08-25
GUANGDONG SANVO CHEM IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the invention is to provide a one-component polyurethane foam caulking agent with low cost, good elasticity, fast curing speed and strong adhesive force and its preparation method, so as to overcome the cost and the elasticity of foamed rubber in the prior art , the contradiction between the adhesive force, and solve the problem of slow foaming and curing speed

Method used

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  • Single-component polyurethane foam caulking agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034]According to the proportion by weight, add 0.4 parts of diaminodicyclohexylmethane and 0.4 parts of 3,5-dimethylthiotoluenediamine into 0.2 parts of high resilience resin SR-550D, stir for 10 minutes, and the stirring speed is 1000 Resilience agent can be prepared by turning per minute; add 0.15 parts of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 0.15 parts of γ-aminopropyltrimethoxysilane to liquid terpene Within 0.2 parts of resin, stir for 15 minutes at a stirring speed of 1200 rpm to obtain a tackifier; add 0.15 parts of triethylenediamine and 0.15 parts of pentamethyldiethylenetriamine into the moisture-cured resin MR- 6080.5 parts, stirred for 5 minutes at a stirring speed of 1500 rpm to obtain the curing agent; then added chlorinated paraffin 52#42 parts into the reaction kettle, and successively added 3 parts of high resilience polyether polyol EP-330N, High resilience polyether polyol EP-3600 2.5 parts, polyether polyol DMN-1000 2.5 parts, silicon dioxid...

Embodiment 2

[0036] According to the proportion by weight, add 0.6 parts of diaminodicyclohexylmethane and 0.6 parts of 3,5-dimethylthiotoluenediamine into 0.8 parts of high resilience resin SR-80NM, stir for 10 minutes, and the stirring speed is 1000 Resilience agent can be prepared by turning per minute; add 0.5 part of N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane and 0.5 part of γ-isocyanate propyltrimethoxysilane into liquid terpene Within 1 part of the resin, stir for 15 minutes at a stirring speed of 1200 rpm to prepare a tackifier; add 0.3 parts of triethylenediamine and 0.3 parts of triethylenediamine to 1 part of moisture-curing resin MR-608, Stir for 5 minutes at a stirring speed of 1500 rpm to obtain the curing agent; then add chlorinated paraffin 42#35 parts into the reaction kettle, and successively add 6 parts of high resilience polyether polyol EP-330N, high resilience polyol 4.5 parts of ether polyol EP-3600, 3.5 parts of polyether polyol DMN-1000, 2 parts of silicon diox...

Embodiment 3

[0038] According to the proportion by weight, add 0.9 parts of diaminodicyclohexylmethane and 0.9 parts of 3,5-dimethylthiotoluenediamine to 0.6 parts of high resilience resin SR-550D, 0.6 parts of high resilience resin SR-80NM In one portion, stir for 10 minutes at a stirring speed of 1000 r / min to prepare a resilient agent; add 1 part of γ-aminopropyltrimethoxysilane and 1 part of γ-isocyanate propyltrimethoxysilane to liquid terpene Within 2 parts of the resin, stir for 15 minutes at a stirring speed of 1200 rpm to obtain a tackifier; add 0.5 parts of triethylenediamine and 0.5 parts of pentamethyldiethylenetriamine into the moisture curing resin MR-6082 part, stirred for 5 minutes at a stirring speed of 1500 rpm to obtain the curing agent; then chlorinated paraffin 52#39 parts were added to the reaction kettle, and 9 parts of high resilience polyether polyol EP-330N, high 6.5 parts of rebound polyether polyol EP-3600, 4.5 parts of polyether polyol DMN-1000, 3 parts of sili...

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Abstract

The invention discloses a single-component polyurethane foam caulking agent and a preparation method thereof. The single-component polyurethane foam caulking agent is characterized by being mainly prepared from paraffin, polyether polyol, a drying agent, a curing agent, a foaming agent, a stabilizing agent, a rebounding agent, a tackifier and isocyanate. The single-component polyurethane foam caulking agent has the advantages that 1, the rebounding agent is complexed with the polyether polyol, so that the elasticity of a product is improved, and the production cost is lowered; 2, a preferable propellent and a coupling agent are adopted for quick foaming and curing, so that the construction efficiency is increased; 3, the tackifier is added, so that the bonding force is enhanced, and the performance of the polystyrene foam is enhanced.

Description

technical field [0001] The invention belongs to the field of polyurethane foam caulking agents, in particular to a one-component polyurethane foam caulking agent with low cost, good elasticity, fast curing speed and strong adhesive force and a preparation method thereof. Background technique [0002] The full name of polyurethane foaming agent is one-component polyurethane foam caulking agent, commonly known as foaming agent, styrofoam, and PU caulking agent. It is the product of the cross combination of aerosol technology and polyurethane foam technology. It is a special polyurethane product filled with polyurethane prepolymer, blowing agent, catalyst and other components in a pressure-resistant aerosol can. When the material is sprayed from the aerosol can, the foamy polyurethane material will expand rapidly and react with the air or the moisture in the contacted substrate to form a foam. The cured polyurethane foam sealant foam has multiple effects such as caulking, bond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/06C09J11/08C09J11/04C08G18/48C08J9/12C08J9/14C08G101/00
CPCC08G18/4804C08G2101/00C08G2170/60C08J9/122C08J9/141C08J9/146C08J2203/06C08J2203/14C08J2203/142C08J2203/202C08J2375/08C08K2201/014C08L2203/14C09J11/04C09J11/06C09J11/08C09J175/08C08L45/00C08K13/02C08K3/34C08K3/36C08K5/17C08K5/375C08K5/544
Inventor 陈炳耀罗军力
Owner GUANGDONG SANVO CHEM IND TECH
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