不饱和聚酯片状模塑料的模压成型与性能  

Preparation and Properties of Unsaturated Polyester Resin Sheet Molding Compound

作　　者：陈明锋 刘玉惠[1,2] 范先谋 杨松伟 林金火 刘灿培 黄海滨[1] CHEN Mingfeng;LIU Yuhui;FAN Xianmou;YANG Songwei;LIN Jinhuo;LIU Canpei;HUANG Haibin(Quangang Petrochemical Research Institute of Fujian Normal University,Quanzhou,Fujian 362801,China;Fujian Key Laboratory of Polymer Materials,College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China)

机构地区：[1]福建师范大学泉港石化研究院,泉州福建362801 [2]福建师范大学化学与材料学院,福建省高分子材料重点实验室,福州350007

出　　处：《应用化学》2018年第10期1222-1226,共5页Chinese Journal of Applied Chemistry

基　　金：福建省科技厅(K类)项目(JK2017010)、福建省合成树脂功能化技术重大研发平台(2014H2003)资助。

摘　　要：采用模压成型的方法制备了不饱和聚酯片状模塑料(UP-SMC)制品,通过万能试验机、热重分析、动态热机械分析、氧指数和纳米压痕技术研究了制品的力学性能、热稳定性能和阻燃性能。结果表明,UP-SMC制品的弯曲强度和冲击强度分别达到203. 4和94. 2 MPa,由树脂过渡到纤维的各相微观力学性能是不同的。该制品的玻璃化转变温度为169. 4℃,在N2气气氛下失重5%(Td5)和最大失重速率(Tdmax)对应的温度分别为333. 5和389. 7℃,600℃的质量保留率大于75%,极限氧指数为25. 7%,表明该UP-SMC制品具有优异的力学性能和热稳定性能。The unsaturated polyester resin sheet molding compound(UP-SMC)products were prepared by compression molding.The mechanical properties,thermal stability and flame retardant performance of UP-SMC products were characterized by the universal testing machine,thermogravimetric analysis,dynamic mechanical analysis,limiting oxygen index and nanoindentation technology.The results show that the bending strength and impact strength of UP-SMC products are up to 203.4 and 94.2 MPa,respectively,and the micromechanical properties are different from resin to fiber phases.The glass transition temperature is 169.4℃,the temperature at 5%mass loss(T d5)and maximum mass loss rate(T dmax)are 333.5 and 389.7℃,respectively.The residue at 600℃is up to 75%,but the limiting oxygen index is only 25.7%,indicting that the prepared UP-SMC products have excellent mechanical and thermal stability properties.

关 键 词：片状模塑料 模压成型 力学性能 热稳定性能 

分 类 号：O631.3[理学—高分子化学]