PA6/SMA/N-PMI复合材料的热性能和力学性能研究  

Study on Thermal and Mechanical Properties of PA6/SMA/N-PMI Composites

作　　者：张景中[1,2] 何敏[1,2] 鲁圣军[1,2] 慈书亭 刘典新[1,2] 黄金[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料科技》2014年第4期48-51,共4页Plastics Science and Technology

基　　金：贵州省自然科学基金项目([2012]2123);贵阳市工业振兴科技计划项目([2012101]2-11)

摘　　要：采用熔融共混法制备了聚酰胺6/苯乙烯-马来酸酐共聚物/N-苯基马来酰亚胺复合材料(PA6/SMA/N-PMI),利用差示扫描量热法(DSC)、热重分析(TGA)及力学性能测试等手段研究了N-PMI用量对PA6/SMA/N-PMI复合材料熔融结晶行为、热性能以及力学性能的影响。结果表明:复合材料的最大分解温度较纯PA6有所提高;随着N-PMI用量的增加,复合材料的结晶温度、结晶度以及熔融焓均逐渐降低;当N-PMI用量为15份时,复合材料的弯曲强度、弯曲模量、拉伸强度以及热变形温度均达到最大值,分别为101.0、2 892、71.6 MPa以及56.6℃,较纯PA6分别提高了11.0%、21.3%、3.1%和10.0%。Polyamide 6/styrene-maleic anhydride/N-phenylmaleimide （PA6/SMA/N-PMI） composites were prepared by melt blending method. The effects of different N-PMI content on crystalline melting behavior, mechanical properties and thermal properties of the PA61SMA/N-PMI composites were studied by differential scanning calorimetry （DSC） and thermal gravimetric analysis （TGA）. The results show that： the crystallization temperature, crystallinity and melting enthalpy of PA6/SMA/ N-PMI decrease with the increment of N-PMI content; compared with pure PA6, the maximum decomposition temperature of PA6/SMA/N-PMI increases; When the N-PMI content is 15 phr, the flexural strength, flexural modulus, tensile strength and heat distortion temperature increase to 101.0, 2 892, 71.6 MPa and 56.6℃, and 11.0%, 21.3%, 3.1%, 10.0% higher than that of pure PA6 respectively.

关 键 词：聚酰胺6 苯乙烯-马来酸酐共聚物 N-苯基马来酰亚胺 热性能 力学性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]