Sound insulation composite material with excellent mechanical property and preparation method thereof

Abstract

The invention discloses a sound insulation composite material with excellent mechanical properties, which is prepared from, by weight, 100 parts of polypropylene, 5-10 parts of sepiolite fibers, 3-5 parts of PET fibers, 5-10 parts of glycidyl methacrylate, 1-2 parts of a coupling agent, 2-5 parts of a lubricant and 1-2 parts of an antioxidant. The invention also discloses a preparation method of the sound insulation composite material. The prepared sound insulation composite material has excellent sound insulation performance and also has good mechanical performance. By compounding the sepiolite fibers and the PET fibers, the mechanical property and sound insulation performance of the composite material are superior to those of a composite material in which the sepiolite fibers or the PET fibers are independently used, and are far superior to those of a common filler as a sound insulation material in the field.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a sound-insulating composite material with excellent mechanical properties and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a crystalline polymer with a regular structure. It is a white pellet or powder, odorless, non-toxic, and light-weight thermoplastic resin. It has easy processing, impact strength, flexibility, and good electrical insulation. And other advantages, it has a wide range of applications in the automotive industry, household appliances, electronics, packaging, building materials and furniture. [0003] Noise has become a major environmental pollution, and people pay more and more attention to the problem of acoustic environment. Selecting appropriate materials for sound absorption and sound insulation is one of the most commonly used and most basic technical measures in noise control engineering. The dif...

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Problems solved by technology

[0005] There are many types of sound insulation materials, such as solid bricks, reinforced concrete walls, wood boards, gypsum boards, iron boards, sound insulation felts, fiberboards, etc., but the processing procedures of the above materials are complicated and the scope of application is limited.

Thermoplastic resin composite materials have the characteristics of high product design freedom, convenient processing and molding, excellent elasticity, chemical corrosion resistance, and recyclability. They have gradually replaced wood and metal materials and have been widely used. The effect is often not both

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