Composite functional material for building interior and preparation process thereof

Abstract

The invention discloses a composite functional material for building interior, which is composed of two parts: a material main body and a non-woven fabric, and the non-woven fabric and the material main body are stacked alternately layer by layer in a sandwich structure; the material main body is composed of the following parts by weight: Components: 12‑34 parts of modified diatomite, 10‑20 parts of fly ash, 4‑8 parts of calcium hydroxide, 5‑15 parts of chopped carbon fiber, 3‑8 parts of sepiolite wool, starch-based 6-18 parts of porous carbon material, 2-7 parts of expanded perlite, 16-28 parts of modified cellulose airgel, 1-3 parts of modified layered dihydroxy composite hydrotalcite, 12-20 parts of polyvinyl alcohol; The nonwoven fabric is made of hemp fiber and shape-setting phase-change fiber in a mass ratio of 3-4:1. The composite functional material for building interior provided by the invention is light in weight, has excellent functions of fire prevention, heat preservation, sound absorption, moisture resistance, mildew resistance, earthquake resistance and radiation resistance, and is light in weight and good in mechanical properties.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a composite functional material for building interiors and a preparation process thereof. Background technique [0002] The pollution of interior decoration materials and furniture is the main aspect of indoor air pollution at present. Materials such as paint, plywood, shaving filler, interior wall paint, and plastic veneer all contain organic vapors such as formaldehyde, benzene, ethanol, and chloroform, which are quite carcinogenic. sex. Electromagnetic waves of different wavelengths and frequencies generated by office equipment, microwave ovens, televisions, computers, mobile phones and other household appliances fill the space, can penetrate many substances including the human body, and receive excessive radiation doses. Most of the existing radiation-proof thermal insulation boards and radiation-proof composite boards adopt a multi-layer combined structure, which has the ...

AI Technical Summary

Problems solved by technology

The existing sound-absorbing materials have poor absorption effect on low-frequency sound, have no flame-retardant function, and release a large amount of harmful gas when burning

Diatomite is formed by the settlement of the remains of diatoms, a single-celled aquatic plant. Diatomite has large porosity, stable chemical properties, wear resistance, heat resistance, and does not contain harmful chemicals. It has the effects of sound insulation, waterproof, and heat preservation. It can dehumidify, deodorize, and purify indoor air. Most of the diatomite materials currently on the market are added with cement, calcium carbonate and other materials to improve mechanical strength, resulting in high density, heavy weight, and poor thermal insulation.

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