A kind of sound-absorbing material and preparation method thereof
A technology of sound-absorbing materials and basic materials, which is applied in the direction of chemical instruments and methods, sound-emitting devices, and synthetic resin layered products. It can solve the problems of low sound-absorbing performance and achieve good sound-absorbing performance, high strength, and low cost.
Active Publication Date: 2018-04-03
SHANGHAI TAIRICH ELECTRONICS TECH +1
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- Abstract
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Problems solved by technology
The technical problem to be solved by the present invention is to overcome the defects of low sound-absorbing performance of PET sound-absorbing materials in the prior art, and provide a sound-absorbing material with high sound-absorbing performance and high strength
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
Embodiment 2
Embodiment 3
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Abstract
The invention provides a sound-absorbing material and a preparation method thereof. The sound-absorbing material comprises a PET sound-absorbing basic material layer, a bonding layer, and a PP melt-blown non-woven fabric layer from bottom to top; the PET sound-absorbing cotton basic material layer and the PP melt-blown non-woven fabric layer are laminated through an adhesive layer; the PET sound-absorbing base material layer is formed by thermal bonding of 0.5-1.5 dtex PET fibers and low-melting point PET fibers; the PP melt The flow resistance of the sprayed non-woven layer is 200-1000mm / s (20cm2, 100Pa). The sound-absorbing material of the invention has good sound-absorbing performance and high strength.
Description
A kind of sound-absorbing material and preparation method thereof technical field The invention relates to a sound-absorbing material and a preparation method thereof. Background technique With the rapid development of science and technology, consumers in many environments have higher and higher requirements for noise, especially for the control of noise in cars, and the sound-absorbing performance of sound-absorbing materials in cars is getting higher and higher. At present, the materials of PET (polyethylene terephthalate) sound-absorbing products in automobiles are mainly PET non-woven sound-absorbing cotton made by acupuncture or thermal bonding. The sound efficiency is average, and there is some gap compared with the PP (polypropylene) meltblown material of the same gram weight. However, PP meltblown sound-absorbing cotton material has long unit time, high energy consumption, low output and high cost. Contents of the invention The technical problem to be solved b...
Claims
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IPC IPC(8): G10K11/162B32B27/08B32B27/12B32B37/12B32B37/06
Inventor 崔欣刘昉李文龙
Owner SHANGHAI TAIRICH ELECTRONICS TECH