Polyurethane foam caulking agent

A technology of polyurethane foam and caulking agent, which is applied in the field of polyurethane foam caulking agent, can solve the problems of poor adhesion, insufficient foam hardness, affecting construction quality, etc., and achieve the effect of good adhesion and stable foam

Inactive Publication Date: 2017-05-10
苏州健能新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing urethane foam sealant has insufficient foam hardness and poor cohesiveness, w

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] A polyurethane foam joint sealant, which is mainly composed of the following raw materials in parts by weight: a polyether polyol with a functionality of 2, 150 parts of a mixture of a polyester polyol with a functionality of 2 and a polymethyl isocyanate, 20 parts of propylene butane, 2 parts of triethylene diamine, 2 parts of silicone foam stabilizer and 2 parts of chlorinated paraffin, 1 part of polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture, polyacrylic acid, poly The mixture of acrylamide and polymethacrylic acid hydrogel is mixed at a weight ratio of 1:1:1.5. Compared with the prior art, the viscosity agent of the polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture is added, and its viscosity is increased by 30% compared with the filler of the prior art.

Example Embodiment

[0020] Example 2

[0021] A polyurethane foam joint sealant, which is mainly composed of the following raw materials in parts by weight: a polyether polyol with a functionality of 3, a polyester polyol with a functionality of 2 and 200 parts of a polymethyl isocyanate mixture, 60 parts of dimethyl ether, 6 parts of dibutyltin dilauric acid, 7 parts of silicone foam stabilizer, 5 parts of chlorine trioxide and antimony oxide compound, polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture 3 The mixture of polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel is mixed according to the weight of 1:1:1.5. Compared with the prior art, the viscosity agent of the polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture is added, and its viscosity is increased by 35% compared with the prior art filler.

Example Embodiment

[0022] Example 3

[0023] A polyurethane foam sealant, which is mainly composed of the following raw materials in parts by weight: a polyether polyol with a functionality of 3, a polyester polyol with a functionality of 3 and 185 parts of a polymethyl isocyanate mixture, 45 parts of dichlorodifluoromethane, 4 parts of bismorpholines, 5 parts of organic silicone foam stabilizer and 3 parts of chlorinated paraffin. 2.5 parts of polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture, polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture according to weight 1:1:1.5. Compared with the prior art, the viscosity agent of the polyacrylic acid, polyacrylamide and polymethacrylic acid hydrogel mixture is added, and its viscosity is increased by 40% compared with the filler of the prior art.

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PUM

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Abstract

The invention relates to the technical field of sealing materials, specifically to a polyurethane foam caulking agent. A conventional polyurethane foam caulking agent has inadequate foam hardness and poor cohesiveness, and affects the quality of construction, so rework is often needed, and unnecessary troubles are brought. The polyurethane foam caulking agent provided by the invention is composed of the following raw materials in parts by weight: 150 to 200 parts of a polyurethane prepolymer, 20 to 60 parts of a foaming agent, 2 to 6 parts of a catalyst, 2 to 7 parts of a foam stabilizer, 2 to 5 parts of a flame retardant and 1 to 3 parts of an adhesive. The polyurethane foam caulking agent provided by the invention enables foam to be more stable, and has good cohesiveness.

Description

technical field [0001] The invention relates to the technical field of sealing materials, in particular to a polyurethane foam caulking agent. Background technique [0002] Urethane foam caulking agent, commonly known as foaming agent, styrofoam, PU caulking agent, is the product of the cross combination of aerosol technology and polyurethane foam technology. 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, bonding, sealing, heat insulation, and sound absorption. It is an environmentally friendly, energy-saving, and easy-to-use building material. Fixed bonding, thermal insulation and sound insulation, especially suitable for sealing and waterproofing between plastic steel or aluminum alloy doors and windows and walls, and it is also more and more widely used. ...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08L75/08C08L33/02C08L33/26C08L83/04C08L91/06C08K3/20C08K3/22C08J9/14
CPCC08L75/06C08J9/141C08J9/142C08J9/146C08J9/147C08J2203/12C08J2203/14C08J2203/142C08J2203/144C08J2375/06C08J2375/08C08J2433/02C08L75/08C08L2203/14C08L2205/02C08L2205/025C08L2205/035C08L33/02C08L33/26C08L83/04C08L91/06C08K3/20C08K3/2279
Inventor 陈士强朱强
Owner 苏州健能新材料科技有限公司
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