P(VAc-co-TAIC)大孔树脂颗粒的制备及声学性能  

Preparation and Acoustic Properties of Macroporous P(VAc-co-TAIC) Resin Beads

作　　者：孙卫红[1] 晏欣[1] 朱锡[2] 周立清[1] 

机构地区：[1]海军工程大学化学与材料系,武汉430033 [2]海军工程大学船舶与海洋工程系,武汉430033

出　　处：《材料工程》2011年第1期33-37,共5页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(50979110)

摘　　要：采用悬浮聚合制备了醋酸乙烯酯-三烯丙基异氰酸酯共聚物大孔树脂颗粒,研究了交联剂和致孔剂用量对大孔树脂颗粒密度、孔体积和孔隙率的影响,结果表明:树脂的孔体积和孔隙率随致孔剂的用量及树脂颗粒直径的增加而增大。空气声吸收性能测试结果表明:在PU/EP共混物基体中加入大孔树脂颗粒能增强其吸声效果;水声性能测试表明:在PU/EP共混物基体中加入10%(质量分数)的大孔树脂颗粒能显著提高其吸声系数,平均吸声系数由0.13增加到0.65,峰值由0.29增加到0.94。Macroporous P（VAc-co-TAIC） resin beads were prepared by suspension polymerization.The influences of the amount of crosslinking agent and porogen and bead diameter on pore volume and porosity were investigated.The results show that pore volume and porosity increase with increasing the bead diameter and content of porogen.The airborne acoustic absorption coefficients of the composites composed of PU/EP blend matrix and the resin beads were measured by using transfer function method,and the results show that the acoustic absorption coefficient of the matrix is improved with adding the resin beads.The results of underwater acoustic property test show that the underwater acoustic absorption coefficient of the matrix is evidently improved with adding 10%（mass fraction） of the resin beads,average acoustic absorption coefficient increases from 0.13 to 0.65,and the peak value increases from 0.29 to 0.94.

关 键 词：醋酸乙烯酯 三烯丙基异氰酸酯 大孔树脂颗粒 空气声吸收性能 水声性能 

分 类 号：TQ316.63[化学工程—高聚物工业]