Straw foaming thermal-insulation material and preparation method thereof

Abstract

The present invention relates to a straw foaming thermal-insulation material and a preparation method thereof, and belongs to the field of foam thermal-insulation composite materials, wherein the raw materials comprise, by weight, 61-65 parts of straw, 15-20 parts of polyether polyol (material A), 15-20 parts of isocyanic acid (material B), 5-8 parts of a stabilizer, and 5-8 parts of a flame retardant agent, and the straw is subjected to an alkali treatment, and foaming and curing molding are performed to obtain the thermal-insulation material. According to the present invention, with the alkali treatment, lignin, pectin and other components in the straw are removed so as to easily improve the strength of the straw, and the bonding property between the straw and the matrix interface is good; the prepared composite material has characteristics of good mechanical property, good thermal insulation, good sound insulation, good flame retardant property, and the like; the straw adopted as the natural plant material has good biodegradability, has the natural hollow structure, and has the good thermal insulation property; and the preparation process of the present invention is simple, can be used for industrial production, and is suitable for the fields of building, home, vehicles, and the like.

Description

technical field [0001] The invention belongs to the field of foam thermal insulation composite materials, and in particular relates to a straw foam thermal insulation material and a preparation method thereof. Background technique [0002] As a natural cellulose fiber, straw fiber has good biodegradability and can become an environmentally friendly product. Not only are these resources not being well utilized at present, but we can see the burning smoke in the fields every summer and autumn. These fumes bring inconvenience to people's life and work, and greatly affect our living environment. [0003] With the development of the economy and the improvement of people's living standards, the use of foam materials is becoming wider and wider, such as in packaging, shock absorption, sound insulation, and heat insulation. In the 21st century, as human beings pay more attention to the living environment, on the premise of satisfying the performance, the requirements of economical...

AI Technical Summary

Problems solved by technology

In today's society, the demand for traditional plastic foam products is still very large, but due to the shortcomings of plastic materials that are easy to age, and the resulting environmental pollution problems are gradually becoming prominent, traditional plastic foam materials are greatly restricted.