低密度TMPTA泡沫的制备及表征  

Preparation and characterization of low density TMPTA foams

作　　者：张永杰[1] 单雯雯[1] 张林[2] 宋玲[1] 王燕红[1] 袁保合[1] 

机构地区：[1]华北水利水电学院数学与信息科学学院,郑州450011 [2]中国工程物理研究院激光聚变研究中心,绵阳621900

出　　处：《化工新型材料》2010年第6期60-61,114,共3页New Chemical Materials

基　　金：国家自然科学基金资助课题(10574096);高温高密度等离子体物理国防科技重点实验室基金资助课题(9140C6806020707);中国工程物理研究院基金资助课题(2007B08008)

摘　　要：低密度聚合物泡沫在惯性约束聚变靶及电磁内爆靶中应用十分广泛。以三羟甲基丙烷三丙烯酸酯(TMP-TA)为聚合单体,安息香甲基醚为引发剂,通过紫外光引发生成凝胶,经超临界干燥得到TMPTA泡沫材料。通过红外光谱仪和元素分析仪确定了TMPTA单体中官能团转化率及泡沫纯度的表征。实验结果表明,聚合反应过程中,在1636cm-1附近碳碳双键(C=C)的转化率为40.48%,泡沫为高纯度的低密度TMPTA泡沫,机械强度可满足核磁内爆靶(Z-pinch)靶装配的需求。Organic polymer foams have many uses in inertial confinement fusion targets and Z-pinch loads.Trimethylolpropane trimethacrylate（TMPTA） was polymerized by ultraviolet radiation,and then dried with carbon dioxide super critical drying technique（36℃,80MPa）,polyacrylate foams was successfully produced.The foams were characterized by infrared spectrometer and elementary analyzer.The data showed that the conversion of carbon-carbon double bonds was 40.48% and the the polymer foams were high purity,and these foams held properties such as self-supportability,clean surface,high purity consisting only elements of C,H and O,thus these foams can satisfy the demand for Z-pinch loads.

关 键 词：聚丙烯酸酯 引发 泡沫 

分 类 号：TB383.4[一般工业技术—材料科学与工程]