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Expanded perlite modified composite sound absorbing material and preparation method thereof

The technology of expanded perlite and sound-absorbing material is applied in the field of expanded perlite-modified composite sound-absorbing material and its preparation, so as to achieve the effect of improving sound-absorbing effect and strength, high strength and improving mechanical properties

Active Publication Date: 2013-03-20
芜湖跃飞新型吸音材料股份有限公司
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AI Technical Summary

Problems solved by technology

Used for spinning to make sound-absorbing cotton

Method used

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Embodiment Construction

[0015] A composite sound-absorbing material modified by expanded perlite, which is made of the following raw materials in parts by weight: 110 parts of barite powder, 55 parts of ceramsite, 48 parts of expanded perlite, 86 parts of acrylic emulsion, and 60 parts of modified tree ash , 18 parts of talcum powder, 24 parts of polyester fiber, 16 parts of nano carbon, 30 parts of EVA, 15 parts of CPE, 6 parts of polyisobutylene, 5 parts of epoxy octyl stearate, 5 parts of toluene diphenyl phosphate, calcium stearate 1.5 parts, 1.5 parts of dibasic lead phthalate.

[0016] Wherein, the modified tree ashes are prepared by the following method: first soak the tree ashes with 10% hydrochloric acid for 4 hours, wash them with deionized water, then soak them with 12% sodium hydroxide solution for 3 hours, and then wash them with deionized water until medium Drying, adding 2.5% sodium lignosulfonate, 1.5% methyltriethoxysilane, 3% epoxidized triglyceride, 5% ceramic powder equivalent to ...

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Abstract

The invention discloses an expanded perlite modified composite sound absorbing material. The material is prepared from the following raw materials in parts by weight: 100-120 parts of barite powder, 50-60 parts of ceramsite, 40-50 parts of expanded perlite, 80-90 parts of acrylic emulsion, 55-65 parts of modified tree ashes, 15-20 parts of talcum powder, 20-30 parts of polyester fibers, 10-20 parts of nanocarbon, 20-30 parts of EVA (ethylene-vinyl acetate copolymer), 15-20 parts of CPE (chlorinated polyethylene), 5-10 parts of polyisobutene, 5-8 parts of epoxy octyl stearate, 4-6 parts of cresyl diphenyl phosphate, 2-3 parts of calcium stearate and 1-2 parts of dibasic lead phthalate. The material has the beneficial effects that the problem of developing and researching the sound absorbing material urgently is solved and the novel sound absorbing material which meets the requirements, can stand the tests of harsh environments and has the advantages of high tensile strength, high elongation, high breaking strength, good sound absorbing effect and the like is prepared.

Description

technical field [0001] The invention relates to a composite sound-absorbing material modified by expanded perlite and a preparation method thereof, belonging to the technical field of material research and production. Background technique [0002] With the development of industrial production, transportation, and urban construction, as well as the increase of population density and the increase of household facilities (audio, air conditioning, television, etc.), environmental noise is becoming more and more serious, and it has become a major public hazard that pollutes the human social environment. Noise not only affects hearing, but also has adverse effects on the human cardiovascular system, nervous system, and endocrine system. [0003] Existing sound-absorbing materials also have composite types, but few have excellent performance indicators for composites of inorganic materials and organic materials. On the whole, my country's sound-absorbing material industry has insu...

Claims

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Application Information

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IPC IPC(8): C08L33/00C08L23/08C08L23/28C08L23/20C08K13/06C08K3/34C08K3/04C08K5/523C08K5/098
Inventor 王黎明孙益民章云厉曼
Owner 芜湖跃飞新型吸音材料股份有限公司
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