摘要
为了制备高降噪材料,以聚氯乙烯(PVC)为基体,添加了丙烯腈-丁二烯-苯乙烯共聚物(ABS)、硅藻土、偶氮二甲酰胺(AC)发泡剂等填料,并利用熔融共混法分别制备了硅藻土/AC/PVC和硅藻土/AC/ABS-PVC复合材料。研究了ABS和AC发泡剂的加入对硅藻土/PVC复合材料的吸声和动态力学性能的影响。结果表明,分散在PVC基体中的ABS起弹性体的作用,并增加体系的阻尼性能。扫描电子显微镜显示,当AC发泡剂质量分数为1.0%时,硅藻土/AC/ABS-PVC复合材料的发泡效果最佳。并且这种体系具有最佳吸声效果,在6300 Hz处吸声系数可达0.86,平均吸声系数为0.26。
In order to solve the problem of noise pollution,acrylonitrile-butadiene-styrene copolymer(ABS),diatomite,azodicarbonamide(AC)foaming agent and other fillers were added to the poly(vinyl chloride)(PVC)matrix.Diatomite/AC/PVC composites and diatomite/AC/ABS-PVC composites were prepared by melt blending method.The effects of ABS and AC foaming agent additions on sound absorption and dynamic mechanical properties of diatomite/PVC composites were studied.The results show that the dispersion of ABS in PVC matrix plays the role of elastomer,which can toughen the composite and increase the damping property of the system.Scanning electron microscope observation indicates that diatomite/AC/ABS-PVC composite has the best foaming effect when the AC foaming agent content is 1.0%.In addition,this composite possesses the best sound absorption effect.The sound absorption coefficient is 0.86 at 6300 Hz,and the average sound absorption coefficient of composites can reach 0.26.
作者
霍又嘉
朱雯雯
潘博坤
徐焕辉
刘杨
游峰
江学良
刘仿军
HUO You-jia;ZHU Wen-wen;PAN Bo-kun;XU Huan-hui;LIU Yang;YOU Feng;JIANG Xue-liang;LIU Fang-jun(Hubei Key Laboratory of Plasma Chemistry and New Materials,School of Materials Science&Engineering,Wuhan Institute of Technology,Wuhan 430205,China;Foshan(Southern China)Institute for New Materials,Foshan 528200,China;CYG Changtong New Material Co.,Ltd.,Shenzhen 518106,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2020年第11期35-39,99,共6页
China Plastics Industry
基金
湖北省大学生创新创业训练项目(S202010490032)
广东省基础与基础应用研究基金(2019A1515110465)。
关键词
硅藻土
聚氯乙烯
丙烯腈-丁二烯-苯乙烯共聚物
声学性能
动态力学分析
Diatomite
Poly(vinyl chloride)
Acrylonitrile-Butadiene-Styrene Copolymer
Acoustic Properties
Dynamic Mechanical Analysis