Urea-formaldehyde resin foaming thermal insulation material

Abstract

The invention relates to urea-formaldehyde resin foaming heat insulating material. The invention is characterized in that: the material is mixed by A composition liquid and B composition liquid, wherein, the A composition liquid is mixed liquid of urea and urea-formaldehyde resin water solution; the B composition liquid is mixed liquid mixedly formed by phosphoric acid, non-ionic surfactant and water; and the urea-formaldehyde resin foaming heat insulating material can be formed by mixing the A composition liquid and the B composition liquid according to the weight proportion of 1:1. The material belongs to high-efficient heat insulating material, has a heat conductivity coefficient less than or equal to 0.035W / (m.k), can improve the heat insulating performance of outside enclosure structures of buildings to the utmost extent, has a performance index which also achieves and even exceeds foreign similar products, is environment-friendly, has low cost, sells the price of 60 to 75 percent of import products, has large development space and application prospect, and is a regeneration product of the prior foaming heat insulating materials.

Description

A kind of urea-formaldehyde resin foam insulation material technical field The invention relates to the field of thermal insulation materials, in particular to a urea-formaldehyde resin foam thermal insulation material. Background technique Foam insulation materials mainly include two categories - polymer foam insulation materials and foam asbestos insulation materials. Polymer foam insulation materials have the advantages of low absorption rate, stable insulation effect, low thermal conductivity, no dust flying during construction, and easy construction. and convenient construction, the promotion and development are relatively stable, and the application effect is also good. However, the foam cotton is easy to be affected by moisture, easy to dissolve when immersed in water, has a small elastic recovery coefficient, and cannot be used in the part of the wall pipe and cannot be exposed to flames. There are three main types of polymer foam insulation materials, namely po...

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Problems solved by technology

However, the raw materials used in urea-formaldehyde resin foam insulation materials contain free formaldehyde. If the manufacturing process is not well controlled, its products will cause harm to the human body.