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Multi-layer composite sound insulation material for automobiles
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A multi-layer composite, sound insulation material technology, applied in the direction of layered products, vehicle parts, metal layered products, etc., can solve the problems of unstable performance, unsatisfactory sound insulation effect, large fluctuation, etc., to improve the service life and avoid empty space. The effect of drum cracking and small fluctuation
Inactive Publication Date: 2019-03-15
LIUZHOU HAOXIANGTE SCI & TECH
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Problems solved by technology
[0003] However, the existing multilayer composite sound insulation materials for automobiles have unsatisfactory sound insulation effec
Method used
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Embodiment 1
[0016] A multilayer composite sound insulation material for automobiles, the multilayer composite sound insulation material for automobiles is composed of the following raw materials in parts by weight: 8 parts of polymethyl methacrylate, 0.1 part of didodecyldimethylammonium bromide, acrylic acid emulsion 3 parts, 8 parts of elastic rubber powder, 0.5 parts of copper quinoline, 10 parts of water-based polyurethane emulsion, 0.5 parts of latex powder, 30 parts of EPDM rubber, 0.5 parts of polypropylene fiber, 0.4 parts of cellulose ether, coupling agent 10 parts, 2 parts of dioctyltin silicate in February, 20 parts of expanded vermiculite, 4 parts of polystyrene foam, 2 parts of mica powder, 12 parts of chitosan, 6 parts of glass fiber cotton, and 0.2 parts of styrofoam.
[0017] Glass fiber cotton is made of seven kinds of ores, including pyrophyllite, quartz sand, limestone, dolomite, boronite, and boronite, through high-temperature melting, wire drawing, winding, and weaving...
Embodiment 2
[0019] Multilayer composite sound insulation material for automobiles, the multilayer composite sound insulation material for automobiles is composed of the following raw materials in parts by weight: 10 parts of polymethyl methacrylate, 5 parts of didodecyldimethylammonium bromide, acrylic acid emulsion 30 parts, 14 parts of elastic rubber powder, 12 parts of copper quinoline, 12 parts of water-based polyurethane emulsion, 2 parts of latex powder, 60 parts of EPDM rubber, 2 parts of polypropylene fiber, 2 parts of cellulose ether, coupling agent 10 parts, 10 parts of dioctyltin silicate in February, 28 parts of expanded vermiculite, 6 parts of polystyrene foam, 5 parts of mica powder, 15 parts of chitosan, 9 parts of glass fiber cotton, and 0.6 parts of styrofoam.
[0020] Glass fiber cotton is made of seven kinds of ores, including pyrophyllite, quartz sand, limestone, dolomite, boronite, and boronite, through high-temperature melting, wire drawing, winding, and weaving proce...
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Abstract
The invention discloses a multi-layer composite sound insulation material for automobiles. The multi-layer composite sound insulation material for automobiles is prepared from raw materials in parts by weight as follows: 8-10 parts of polymethyl methacrylate, 0.1-5 parts of didodecyldimethylammonium bromide, 3-30 parts of an acrylic emulsion, 8-14 parts of elastic rubber powder, 0.5-12 parts of hydroxyquinoline, 10-12 parts of a waterborne polyurethane emulsion, 0.5-2 parts of latex powder, 30-60 parts of EPDM (ethylene-propylene-diene monomer) rubber, 0.5-2 parts of polypropylene fiber, 0.4-2parts of cellulose ether, 1-10 parts of a coupling agent, 2-10 parts of dioctyldilauryltin, 20-28 parts of expanded vermiculite, 4-6 parts of polystyrene foam plastic, 2-5 parts of mica powder, 12-15parts of chitosan, 6-9 parts of glass fiber cotton and 0.2-0.6 parts of polystyrene foam. The multi-layer composite sound insulation material for automobiles has good sound insulation effect, can reduce harm of noise and has stable performance and small fluctuation, meanwhile, the service life of the material is prolonged, the sound insulation material consists of multiple layers of substances, and thus, the sound insulation property is further improved.
Description
technical field [0001] The invention relates to the field of chemical materials, in particular to a multilayer composite sound-insulating material for automobiles. Background technique [0002] Sound insulation refers to the isolation, isolation, separation, etc. of sound or noise through certain objects, so sound insulation materials are needed. The decibel number related to the incident sound energy on one side of the material and the transmitted sound energy on the other side is the material's insulation volume. Usually expressed with the symbol R (dB). [0003] However, the existing multilayer composite sound insulation materials for automobiles have unsatisfactory sound insulation effects, unstable performance and large fluctuations. Therefore, we propose multilayer composite sound insulation materials for automobiles. Contents of the invention [0004] The object of the present invention is to provide a multi-layer composite sound-insulating material for automobiles...
Claims
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Application Information
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