Cinder-ash insulation foam board and preparing method thereof

Abstract

The invention discloses a cinder-ash insulation foam board and a preparing method thereof. The cinder-ash insulation foam board comprises, by weight, 20 parts to 40 parts of polyphenyl granules, 7 parts to 13 parts of benzene, 25 parts to 40 parts of absolute ethyl alcohol, 7 parts to 12 parts of 2-ethoxyethanol, 1 part to 2 parts of epoxy resin, 2 parts to 3 parts of curing agents, 1 part to 2 parts of surfactants, 1 part to 3 parts of thixotropic agents and 10 parts to 20 parts of cinder ash. The preparing method of the cinder-ash insulation foam board includes the steps of pre-foaming the raw materials; preprocessing the foamed raw materials; placing expandable polyphenyl into a mold for mold pressing foaming forming, and obtaining the cinder-ash insulation foam board. By means of the cinder-ash insulation foam board and the preparing method, the cinder ash is efficiently used, the pollution of the cinder ash to the environment is reduced, the flame resistance and the insulation performance of the insulation foam board prepared with the preparing method are improved, and therefore the foam board is safer, more reliable and more practical.

Description

technical field [0001] The invention relates to building materials, in particular to a cinder ash thermal insulation foam board and a preparation method thereof. Background technique [0002] At present, because the country has attached great importance to the comprehensive utilization of fly ash for a long time, and has been persistently organizing and promoting it, the comprehensive utilization technology of fly ash in the country has been continuously improved and innovated. The international background is that the former Soviet Union mainly used wet discharge of fly ash, and only recently began to increase dry ash discharge facilities. Now the annual dry ash discharge is 10 million tons, accounting for about 10%, and the annual utilization is 15 million tons. , the utilization rate is 13%, and it is mainly used to make cement, wall products, concrete, mortar admixtures and road filling materials; the UK has developed a high-quality commercial fly ash "Puzhuolan" suitable...

AI Technical Summary

Problems solved by technology

The generation method of Ps foaming at room temperature within 0.1-1 ls is currently the world's advanced technology; in the molding process of Ps board, in addition to completing the general plastic molding and shaping, it is also necessary to complete the formation, expansion, curing and shaping of air bubbles The mechanism is complicated, and it is required to be carried out in special molding equipment, and the molding process is strictly controlled, which is relatively difficult. Although the Ps board and similar thermal insulation foam boards have excellent thermal insulation performance, their flame resistance is relatively poor.