CPE/涤纶七孔短纤弹性体复合材料的吸声性能

纺织学报 ›› 2010, Vol. 31 ›› Issue (3): 32-35.

CPE/涤纶七孔短纤弹性体复合材料的吸声性能

姜生；晏雄

东华大学纺织面料技术教育部重点实验室

收稿日期:2009-05-18 修回日期:2009-09-15 出版日期:2010-03-15 发布日期:2010-03-15
通讯作者: 晏雄

Acoustical absorption property of elastomer composites consisting of chlorinated polyethylene and seven-hole hollow polyester fibers

JIANG Sheng；YAN Xiong

Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University

Received:2009-05-18 Revised:2009-09-15 Online:2010-03-15 Published:2010-03-15
Contact: YAN Xion

摘要/Abstract

摘要：

以氯化聚乙烯（CPE）为基体，涤纶七孔短纤（SHPF）为增强体，制备了CPE/SHPF系列弹性体复合材料，并对其吸声性能进行了研究。结果表明这种材料在中频段具有较好的吸声性能。随着纤维质量比的增加，材料的吸声系数明显增加，当CPE/SHPF的质量比达100/25时，厚度为1㎜的复合材料在2500 Hz时的吸声系数达到0.364。为分析其吸声机制，对材料进行了动态黏弹性测试发现，该材料的吸声效果与材料的黏弹性关系呈负相关，这与正常情况相违背，说明另有影响其吸声性能的因素存在。对材料进行了力学性能测试发现，随纤维含量的增加，材料的力学性能获得极大的改善。研究认为CPE/SHPF弹性体复合材料是一种具有工程应用潜力的吸声材料。

Abstract:

A series of elastomer composites were prepared with Chlorinated Polyethylene (CPE) as the substrate and seven-hole hollow polyester fibers(SHPF) as reinforcing material. The acoustical absorption property of the samples was studied. The results showed that CPE/SHPF elastomer composites have preferable acoustical absorption property at medium frequency and acoustical absorption coefficient of the samples markedly increased with increasing of the proportion of fibers. Acoustical absorption coefficient of CPE/SHPF composites with 1㎜ thickness is 0.364 in 2500Hz frequency when the proportion in mass of CPE/SHPF is 100/25. The dynamic viscoelasticity of CPE/ SHPF was measured in order to analyze the acoustical absorption mechanism of the composites. It was found that the acoustical absorption is inversely related with their viscoelasticity. This is abnormal, indicating that there are some other factors that influence acoustical absorption of CPE/ SHPF. The mechanical properties of the composites were also tested. The mechanical properties of the composites improved significantly with increasing of fibers. As an acoustical absorption material, CPE/ SHPF composites have potential applications in engineering field.

中图分类号:

TB332

姜生;晏雄. CPE/涤纶七孔短纤弹性体复合材料的吸声性能[J]. 纺织学报, 2010, 31(3): 32-35.

JIANG Sheng;YAN Xiong. Acoustical absorption property of elastomer composites consisting of chlorinated polyethylene and seven-hole hollow polyester fibers[J]. JOURNAL OF TEXTILE RESEARCH, 2010, 31(3): 32-35.

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