Decorating interior sound insulation material

Abstract

The invention relates to a decorating interior sound insulation material, which is prepared from the following raw materials in parts by weight: 42-56 parts of thermoplastic phenol resin, 20-25 parts of expanded vermiculite, 4-6 parts of polystyrene foamed plastic, 2-3 parts of a silane coupling agent, 1-1.5 parts of nano carbon black, 8-10 parts of polymethyl methacrylate, 0.1-0.2 part of an antioxidant, 0.1-0.2 part of a foaming agent, 0.2-0.3 part of magnesite, 2-3 parts of silica sol with the solid content of 10%-15%, 20-40 parts of 100-200-mesh montmorillonoid, 10-12 parts of a water-based polyurethane emulsion with the solid content of 8%-10%, 10-20 parts of collagenous fiber, 20-30 parts of waste felt and 2-5 parts of an assistant. The prepared expanded vermiculite-polyurethane composite emulsion-wrapped thermoplastic phenol resin nonwoven sound insulation material is light in weight, small in thickness and good in sound insulation effect, and has a good market prospect.

Description

technical field [0001] The invention relates to a non-woven sound-insulating material, in particular to a thermoplastic phenol resin non-woven sound-insulating material coated with expanded vermiculite-polyurethane composite emulsion for interior decoration. Background technique [0002] Now, with the continuous acceleration of urbanization, noise pollution is becoming more and more serious. In order to effectively cut off noise, the usual solution is to use soundproofing materials. Existing sound insulation materials are generally cement concrete, glass panels, etc., these sound insulation and so on. The sound insulation effect of these sound insulation materials is not very good, so the usual solution is to increase the thickness of the sound insulation materials. The problem caused by this is that the quality of the sound insulation material is too heavy, the cost is too high, and the installation process is very inconvenient. [0003] Polypropylene-based composite non...

AI Technical Summary

Problems solved by technology

The problem caused by this is that the quality of the sound insulation material is too heavy, the cost is too high, and the installation process is very inconvenient.

[0003] Polypropylene-based composite non-woven materials made by meltblown method have become a kind of sound insulation materials widely used in automotive interiors due to their ultra-fine fiber structure, simple and efficient production, non-toxic and harmless, etc. Most of these materials have loose structures , the smooth fiber outer layer reduces the specific surface area of ​​the material, which shortens the attenuation and conversion time of the sound wave in the material, and does not achieve a satisfactory sound insulation effect. In actual use, the noise reduction effect is often improved by increasing the thickness of the material At the same time, the finished product has disadvantages such as easy deformation, poor resilience, easy to generate static electricity, and poor heat resistance.