Sound insulating material and preparation method thereof

Abstract

The invention belongs to the technical field of thermoplastic resin sound insulating material preparation and particularly relates to a thermoplastic resin sound insulating material and a preparation method thereof. The material comprises the following components: PVC resin (100 parts), a plasticizer (10-60 parts), a stabilizer (1-6 parts), sound insulating functional particles (30-90 parts) and filler (0-100 parts), and can also comprise a flame retardant and a smoke suppressant (5-20 parts), a lubricating agent (1-3 parts), an antioxidant (0.1-2 parts), an antistatic agent (0.1-2 parts) and a pigment (0.1-2 parts). The sound insulating functional particles include one or several of carbonate, sulfate, hydroxide, oxide and metal powder. The preparation method of the sound insulating material prepared from the components comprises the steps of raw material blending; extrusion granulating; and extrusion calendaring. The sound insulating material disclosed by the invention is prominent in sound insulating property, high in strength, flame-retardant, smoke-suppressant, nontoxic, environment-friendly as well as colorful and bright in color; and the preparation method is simple and convenient in production process and low in cost.

Description

technical field [0001] The invention belongs to the technical field of preparation of thermoplastic resin sound insulation materials, and in particular relates to a thermoplastic resin sound insulation material and a preparation method thereof. Background technique [0002] At present, the development of industrial technology has brought convenient transportation, prosperous urban life and row upon row of factories to people, but the noise pollution is becoming more and more serious. The ubiquitous factory noise (up to more than 100 decibels), entertainment noise, construction noise and traffic noise are increasingly affecting our daily life. On the other hand, with the improvement of living standards, people have higher and higher requirements for the quiet comfort and mutual non-interference of living environment, working and learning environment, entertainment environment and public places. Therefore, noise control and blocking has become an important problem to be solve...

AI Technical Summary

Problems solved by technology

Generally, in the prior art, particles of the same particle size are used for filling, and it is difficult to achieve volume complementation and uniform distribution, resulting in uneven filling and poor mechanical properties, which affect the sufficient reflection, scattering, refraction and diffraction of sound waves in it, thus Affects the blocking and absorption of sound

When all large-size particles are used, it is difficult to achieve dense filling due to the steric hindrance effect, and the gaps between the particles are large, which cannot fully block the transmission of sound waves (such as reflection, scattering, refraction or diffraction)

When all small particle size particles are used, on the one hand, the small particles themselves have poor reflection and blocking ability to sound waves, and are easy to diffract; on the other hand, due to the high surface free energy of small particles, inhomogeneity easily occurs in the matrix Aggregation or agglomeration, unable to block the transmission of sound waves to the greatest extent

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