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Double-component polyester polystyrene foam with inflaming retarding property and preparation method thereof

A two-component polyurethane and foamed adhesive technology, applied in the field of construction adhesives, can solve the problems of poor safety performance, low adhesion, flammability, etc., and achieve high construction efficiency, improved flame retardancy, high shear the effect of strength

Inactive Publication Date: 2017-01-04
哥俩好(辽宁)新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low adhesion and low density of one-component polyurethane, it has low adhesion to walls, doors and windows, high shrinkage, and poor strength. In addition, one-component polyurethane sealants are extremely flammable due to flammable solvents , poor safety performance

Method used

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  • Double-component polyester polystyrene foam with inflaming retarding property and preparation method thereof

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Embodiment Construction

[0035] A two-component polyurethane foam with flame-retardant properties and its preparation method according to the present invention will be further described in conjunction with specific examples. The specific composition is listed in Table 1. It is necessary to point out that this embodiment is only for illustration, and the protection scope of the present invention is not limited to the scope of illustration.

[0036] The specific preparation process of the embodiment is as follows.

[0037] Component A: First, add polyether polyol, foam stabilizer, thixotropic agent and flame retardant into a four-neck bottle and mix evenly, heat to 120ºC, stir for 30min, then cool down to below 80ºC, add catalyst and foaming agent And water, after mixing evenly, it can be used with component B.

[0038] Component B: Dehydrate the polyol until the water content is less than 0.5%, add PAPI under the protection of nitrogen, slowly raise the temperature to 80ºC (5ºC / min), stir and keep war...

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Abstract

The invention relates to double-component polyester polystyrene foam with the inflaming retarding property and a preparation method thereof, and belongs to the field of building adhesives. The double-component polyester polystyrene foam comprises a component A and a component B. The component A comprises 40.0%-80.0% of polyether polyol, 2.0%-5.0% of foam stabilizer, 1.0%-2.5% of catalyst, 0%-10.0% of thixotropic agent, 0%-40% of fire retardant, 5.0%-10.0% of foaming agent and 2.0%-10.0% of water. The component B comprises PAPI prepolymers. The component A is prepared through the steps that polyether polyol, the foam stabilizer, the thixotropic agent and the fire retardant are mixed, heated, stirred and cooled, the catalyst, the foaming agent and the water are added, and the mixture is mixed to be uniform. The component B is prepared through the steps that PAPI is added into polyhydric alcohol, the temperature is raised, and stirring, heat preservation and cooling are carried out. The double-component polyester polystyrene foam does not contain dimethyl ether or propane or butane or other inflammable gas, and is good in inflaming retardance. The double-component polyester polystyrene foam has high inflaming retardance, and is high in foaming and curing speed, low in density, high in shear strength and high in construction efficiency.

Description

technical field [0001] The invention relates to a two-component polyurethane foam with flame-retardant properties and a preparation method thereof, belonging to the field of construction adhesives. Background technique [0002] Polyurethane foam sealant has the advantages of fast curing speed, easy construction, and high density after curing. It can be used for fixed bonding filling, thermal insulation and waterproofing of various doors and windows, as well as fixed bonding filling, thermal insulation and waterproofing of various pipes on walls and roofs. . [0003] With the rapid development of my country's construction industry, polyurethane foam sealants have been widely used, and one-component sealants have been greatly developed. However, due to the low adhesion and low density of one-component polyurethane, it has low adhesion to walls, doors and windows, high shrinkage, and poor strength. In addition, one-component polyurethane sealants are extremely flammable due to...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L91/00C08L91/06C08K5/521C08J9/08C08J9/14C08G18/80C08G18/48C08G101/00
CPCC08G18/8019C08G18/48C08G18/4804C08J9/08C08J9/144C08J9/146C08J2203/10C08J2203/142C08J2203/184C08J2203/204C08J2375/08C08L75/08C08L2201/02C08L2203/14C08L2205/03
Inventor 杨猛田学深沈越曾巍周树柏
Owner 哥俩好(辽宁)新材料有限公司
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