热塑性弹性体阻尼及吸声性能研究  

Study on Damping and Sound Absorption Properties of Thermoplastic Elastomer

作　　者：卢焕青 朱雅芝[1] 金江明[2] 杨建江 杨晋涛[1] 范萍[1] 钟明强[1] 陈枫[1] 

机构地区：[1]浙江工业大学材料科学与工程学院,杭州310014 [2]浙江工业大学机械工程学院,杭州310014 [3]浙江新昌绿泰塑料有限公司,浙江新昌312530

出　　处：《科技通报》2017年第6期1-5,共5页Bulletin of Science and Technology

基　　金：国家自然科学基金(21274131;51273178和51303158);浙江省自然科学基金(LY15E030005和LY17E030006)

摘　　要：基于匹配阻抗模型以及橡胶/空气模型,提出将无机粒子改性热塑性弹性体构建多相体系来提升吸声效果,使用TPEE作为热塑性弹性体,使用的无机粒子为轻质碳酸钙和空心玻璃微珠。本论文中,SEM图显示无机粒子在TPEE树脂中分布均匀,含量过高时会发生团聚现象;吸声测试表明无机粒子的加入会将TPEE的吸声曲线往高频方向移动,吸声性能有明显的提升;DMA测试表明,无机粒子的加入使损耗因子在低温下变化不大,常温下的阻尼性能得到提升;TPEE的力学性能在添加无机粒子后有所下降。故而,无机粒子的添加使得TPEE的阻尼与吸声性能有显著提升。Based on the impedance matching and rubber/air model, the inorganic particle was filled into TPEE to fabricate the novel sound absorption material which had the multiphase structure. TPEE was used as the thermoplastic elastomer, and the light calcium carbonate and the hollow glass microsphere were used as the inorganic particles. In the paper, the SEM diagrams showed that the inorganic particles were distributed uniformly in the TPEE and the agglomeration contented when the content was too high.The absorption tests showed that the inorganic particles could join the absorption curve of TPEE to move to high frequency, and the sound absorption property was improved significantly. The results of DMA tests showed that the addition of the inorganic particles could make the loss factor change little at low temperature, and the damping capacity could be improved at room temperature. However, the mechanical properties of TPEE decreased with the addition of the inorganic particles. Therefore, the damping capacity and the sound absorption property were improved significantly with the addition of the inorganic particles.

关 键 词：TPEE 无机粒子 吸声 阻尼 SEM 

分 类 号：O631.11[理学—高分子化学]