Composite foam sound insulation material and preparation method thereof
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A technology of sound insulation material and composite foam, which is applied in the field of composite foam sound insulation material and its preparation, can solve the problems of inconvenient installation and construction, heavy weight, etc. Effect
Inactive Publication Date: 2014-04-09
李巍巍 +1
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These sound insulation materials are all in accordance with the law of sound insulation quality, that is, the sound insulation performance is achieved by increasing the surface density of the material. These materials are heavy in weight, inconvenient for installation and construction, and have certain limitations in the use of weight-reducing fields; in addition, these The material is completely sound-insulated through a relatively high surface density, and only simply reflects sound waves to achieve sound-insulation performance.
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Embodiment 1
[0045] Preparation of sound insulation material masterbatch:
[0046] Put 50 parts of chlorinated butyl rubber, 50 parts of hollow glass microspheres, and 20 parts of petroleum resin into a 20r / min internal mixer for mixing. The mixing temperature is 120°C, and the pressure of the top bolt is 0.4-0.8MPa. Knead for 10-15 minutes, then deglue, tamp, press, tablet, cool, park for 4-6 hours, and carry out secondary plasticating for 10-15 minutes.
[0047] Preparation of foam masterbatch:
[0048] Put 20 parts of chlorinated butyl rubber into an open mill and knead at a temperature of 80°C. After the rubber material is covered with rolls, add 20 parts of sodium bicarbonate in batches.
[0049] 20 parts of chlorinated butyl rubber, 120 parts of sound insulation material masterbatch, 12 parts of stearic acid, 1.5-2.5 parts of peptizer, 2 parts of DM, 3 parts of MgO2, 1 part of TMTD, 3 parts of ZnO, foaming agent master 40 parts of granules were put into the internal mixer, the mixi...
Embodiment 2
[0053] Preparation of sound insulation material masterbatch:
[0054] Mix 50 parts of bromobutyl rubber, 50 parts of barium sulfate, and 20 parts of petroleum resin in a 20r / min internal mixer. 10-15 minutes, then degumming, stamping, pressing, tableting, cooling, parking for 4-6 hours, and second plasticizing for 10-15 minutes.
[0055] Preparation of foam masterbatch:
[0056] Put 20 parts of bromobutyl rubber into an open mill and knead at a temperature of 80°C. After the rubber is covered with rolls, add 10 parts of BOSH foaming agent in batches.
[0057] 20 parts of bromobutyl rubber, 120 parts of sound insulation material masterbatch, 12 parts of stearic acid, 1.5-2.5 parts of peptizer, 2 parts of DM, 3 parts of MgO2, 1 part of TMTD, 3 parts of ZnO, foaming agent master 40 parts of granules were put into the internal mixer, the mixing temperature was 80°C, and the mixing was done for 10 minutes; glue removal, pounding, tableting, and tableting.
[0058] Put it into a...
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Abstract
The invention discloses a composite foam sound insulation material. The material is composed of the following components in parts by weight: 49 parts of halogenated butyl rubber sulfurization system, 120 parts of sound insulation material master batch, and 40 parts of foaming master batch; wherein the halogenated butyl rubber sulfurization system comprises the following components in parts by weight: 30 parts of halogenated butyl rubber, 12 parts of promoter, 2 parts of promoter, 2 parts of anti-coking agent, 1 part of promoter, and 3 parts of sulfurization agent; the foaming master batch comprises the following components in parts by weight: 20 parts of halogenated butyl rubber and 20 parts of foaming agent; the sound insulation material master batch comprises the following components in parts by weight: 50 parts of halogenated butyl rubber, 50 parts of sound insulation material, and 20 parts of plasticizer. The invention also discloses a preparation method of the composite foam sound insulation material. The composite foam sound insulation material has the advantages of good sound insulation and sound absorbing property, light weight, and excellent heat insulation property, and at the same time has the characteristics of adaptability to various appearances in the actual use, excellent elasticity, fire retardant property, environment-friendliness, and chemical corrosion resistance.
Description
technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a composite foam sound insulation material and a preparation method thereof. Background technique [0002] At present, the sound insulation materials at home and abroad mainly include: metal plate sound insulation, metal foam sound insulation, composite material sound insulation, and polymer composite material sound insulation. These sound insulation materials are all in accordance with the law of sound insulation quality, that is, the sound insulation performance is achieved by increasing the surface density of the material. These materials are heavy in weight, inconvenient for installation and construction, and have certain limitations in the use of weight-reducing fields; in addition, these The material completely performs sound insulation through a relatively high surface density, and only simply reflects sound waves to achieve sound insulation performance...
Claims
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