Thermal-insulation and heat-preservation material with cold resistance and preparation method thereof

Abstract

The invention discloses a thermal-insulation and heat-preservation material with cold resistance and a preparation method thereof. The preparation method comprises the following steps: crushing 8-12 parts of hollow glass microspheres, 40-50 parts of polyphenyl particles, 8-10 parts of clay, and 5-10 parts of quartz sand, and performing mixing uniformly under stirring; adding 10-15 parts of allyl methacrylate, 8-12 parts of cyclopentanol, 10-20 parts of 4-aminobutyric acid, and 5-10 parts of di-n-hexyl azelate, and performing a reaction for 8-12h at a water bath temperature of 60-80 DEG C; adding 5-8 parts of alkyl diphenyl phosphate, 6-9 parts of ethyl pelargonate, 7-10 parts of N,N-dimethylurea, and 4-6 parts of polyacrylamide, and performing stirring at a temperature of 80-100 DEG C to form a foamed mixture; performing vacuum filtration and concentration on the foamed mixture, wherein a sold phase mass content of foamed slurry is controlled to be 8-20%; performing pressing to form a prefabricated body, wherein an amount of compression is controlled to be 20-60%, and a density is controlled to be 0.2-0.4g / cm<3>; and performing drying at a temperature of 160-200 DEG C, performing melting extrusion, and performing granulation.

Description

technical field [0001] The invention belongs to the field of thermal insulation materials, in particular to a cold-resistant thermal insulation material and a preparation method thereof. Background technique [0002] In recent years, with the gradual advancement of building a well-off society in an all-round way, the construction industry has grown rapidly, and the production and consumption of energy have also increased sharply. In recent years, my country's new buildings are almost half of the world's new buildings, so building energy conservation is the requirement of the development of the times. It is estimated that by 2020, energy consumption for buildings may be 35% of the total GNP. Building energy conservation is the main content of implementing the national environmental protection and energy conservation policies, and is an important part of implementing the sustainable development of the national economy. To achieve sustainable development of the national econo...

AI Technical Summary

Problems solved by technology

The thermal conductivity of inorganic thermal insulation materials is relatively large, and the thermal insulation effect is slightly poor, but it has good fire retardant and anti-aging properties, long service life, small deformation coefficient, and stable performance; the thermal conductivity of organic thermal insulation materials is low, and the thermal insulation effect is better. Good, but most of them are easy to burn. In the event of a fire, the organic insulation material will accelerate the spread of the flame, and a large amount of toxic gas will be emitted

Therefore, inorganic-organic composite materials have become the focus of current research. In addition, in the north, especially in cold winter regions, existing thermal insulation materials often have problems of easy cracking and reduced thermal insulation performance.

Images