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Urea-formaldehyde resin foaming thermal insulation material

A technology of urea-formaldehyde resin and thermal insulation material, applied in other chemical processes, chemical instruments and methods, etc., can solve problems such as hazards, achieve advanced technology, improve thermal insulation performance, and formulate scientific effects

Inactive Publication Date: 2010-07-21
TIANJIN YOUNINGFUMU BUILDING ENERGY SAVING SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with specific examples, and the following examples are only descriptive, not limiting, and cannot limit the protection scope of the present invention with this.

[0024] This urea-formaldehyde resin foam insulation material is a full water-based foam insulation material, which is composed of A component liquid and B component liquid, in which A component liquid is composed of urea and urea-formaldehyde resin aqueous solution, and its proportion (weight Ratio) is: urea: urea-formaldehyde resin aqueous solution=1: 14~18; The optimal proportioning ratio of the two is urea: urea-formaldehyde resin aqueous solution=1: 16. The solid content of the urea-formaldehyde resin aqueous solution is 30-35%, the best is 33%.

[0025] Component B liquid is a mixture of phosphoric acid, non-ionic surfactant and water, and its proportion (weight ratio) is:

[0026] Phosphoric acid: 3-5%, the best is 4%;

[00...

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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

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a urea-formaldehyde resin foam thermal insulation material. Background technique [0002] 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. [0003] There are three main types of polymer foam insulation materials, namely polyurethane, phenolic resin and urea-f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/24C08J9/04C09K3/18
Inventor 孙秉普
Owner TIANJIN YOUNINGFUMU BUILDING ENERGY SAVING SCI & TECH DEV CO LTD
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