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Nano vermiculite modified composite sound absorbing material and preparation method thereof

A technology of nano-vermiculite and sound-absorbing materials, applied in the field of material research and production, to achieve the effect of improving sound-absorbing effect and strength, good sound-absorbing effect and high strength

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

[0014] A composite sound-absorbing material modified by nano-vermiculite, which is made of the following raw materials in parts by weight: 120 parts of barite powder, 60 parts of ceramsite, 50 parts of nano-vermiculite, 90 parts of polyvinyl acetate emulsion, modified tree ash 65 parts, 18 parts of aluminum hydroxide, 25 parts of polybenzimidazole fiber, 18 parts of nano carbon, 30 parts of EVA, 20 parts of CPE, 10 parts of HIPS, 8 parts of diisobutyl phthalate, decabromodiphenyl ether 6 parts, zinc stearate 2 parts, tribasic lead sulfate 2 parts.

[0015] Wherein, the modified tree ashes are prepared by the following method: first soak the tree ashes with 15% hydrochloric acid for 4 hours, wash them with deionized water, then soak them with 12% sodium hydroxide solution for 4 hours, and then wash them with deionized water to medium Drying, adding 3% sodium lignosulfonate, 2% methyltriethoxysilane, 3% epoxidized triglyceride, 5% ceramic powder equivalent to the weight of tree ...

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Abstract

The invention discloses a nano vermiculite 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 nano vermiculite, 80-90 parts of polyvinyl acetate emulsion, 55-65 parts of modified tree ashes, 15-20 parts of aluminium hydroxide, 20-30 parts of polybenzimidazole 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 HIPS (high impact polystyrene), 5-8 parts of diisobutyl phthalate, 4-6 parts of decabromodiphenyl ether, 2-3 parts of zinc stearate and 1-2 parts of tribasic lead sulfate. 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 nano vermiculite 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): C08L31/04C08L23/08C08L23/28C08L51/00C08K13/06C08K3/34C08K3/22C08K3/04C08K5/12C08K5/098C08K3/30
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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