Invention Grant
- Patent Title: High-sound-absorption composite material for traffic sound barriers and preparation method thereof
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Application No.: US15063530Application Date: 2016-03-08
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Publication No.: US09771693B2Publication Date: 2017-09-26
- Inventor: Yun Zhang , Ronghua Ding
- Applicant: PANASIAN MICROVENT TECH (JIANGSU) CORPORATION
- Applicant Address: CN Changzhou
- Assignee: PANASIAN MICROVENT TECH (JIANGSU) CORPORATION
- Current Assignee: PANASIAN MICROVENT TECH (JIANGSU) CORPORATION
- Current Assignee Address: CN Changzhou
- Priority: CN201310441132 20130925
- Main IPC: E01F8/00
- IPC: E01F8/00 ; G10K11/162 ; B29C44/02 ; B29C65/50 ; G10K11/168 ; G10K11/16 ; B29K27/18 ; B29K105/04 ; B29L31/00 ; B29C44/56

Abstract:
The present invention discloses a high-sound-absorption composite material for a traffic sound barrier. The surface of a porous sound-absorption material layer is clad with a cladding layer in a sealing way, and the clad parts and joints are in sealed connection. The cladding layer is an expanded polytetrafluoroethylene microporous membrane or a modified membrane of the expanded polytetrafluoroethylene microporous membrane. A preparation method is disclosed, comprising the following steps of cutting the porous sound-absorption material; covering the surface of the porous sound-absorption material with the expanded polytetrafluoroethylene microporous membrane or the modified membrane of the expanded polytetrafluoroethylene microporous membrane; performing sealed connection on the clad parts and joints. By the above approach, the present invention is able to greatly reduce noise, has a soundproof function and a better sound-absorption function, has a prolonged service life, and features environmental protection, flame retardancy, damp-proofing and high plasticity.
Public/Granted literature
- US20160186395A1 HIGH-SOUND-ABSORPTION COMPOSITE MATERIAL FOR TRAFFIC SOUND BARRIERS AND PREPARATION METHOD THEREOF Public/Granted day:2016-06-30
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