POE-g-MAH对PA66/纳米TiO_2复合材料力学性能及相容性的影响  

Effect of POE-g-MAH on Mechanical Properties and Compatibility of PA66/Nano-TiO_2 Composites

作　　者：李建华 杨帆[3] 桑晓明[3] 

机构地区：[1]开滦煤化工研发中心,河北唐山063611 [2]河北省煤基材料与化学品工程技术研究中心,河北唐山063018 [3]河北联合大学材料科学与工程学院,河北唐山063009

出　　处：《工程塑料应用》2015年第4期114-118,共5页Engineering Plastics Application

摘　　要：采用熔融共混法制备了尼龙(PA)66/马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)/纳米TiO2复合材料,通过万能材料试验机、冲击试验机、熔体流动速率(MFR)测试仪等研究了POE-g-MAH对复合材料力学性能及MFR的影响,利用Molau实验和FSEM考察了POE-g-MAH与PA66的相容性。结果显示,POE-g-MAH与PA66基体有很好的相容性;随着POE-g-MAH用量的增加,PA66/POE-g-MAH/纳米TiO2复合材料的缺口冲击强度逐渐增加,拉伸强度、弯曲强度、拉伸弹性模量及MFR逐渐降低;当POE-g-MAH质量分数为12%时,复合材料的综合性能最佳,缺口冲击强度、拉伸强度、弯曲强度、拉伸弹性模量和MFR分别为20.89kJ/m2,41.15MPa,64.2MPa,1428.15MPa和19.2g/(10min)。The polyamide（PA）66/maleic anhydride grafted ethylene octene copolymer（POE-g-MAH）/nano-TiO2 composites were prepared by melt blending method. The effects of POE-g-MAH on the mechanical properties and melt flow rate（MFR） of PA66/nano-TiO2 composites were studied using universal material testing machine,impact testing machine,melt flow rate tester,etc.. Molau experiments and FSEM were used to examine the compatibility of POE-g-MAH and PA66. The results show that,POE-g-MAH is well compatible with PA66. With the increase of POE-g-MAH content,the notch impact strength of the composites increases,the tensile strength,bending strength,the tensile elastic modulus and MFR decrease gradually. When POE-g-MAH content is 12%,the comprehensive properties of the composites achieve the best,the notched impact strength,tensile strength, bending strength,tensile elastic modulus and MFR are 20.89 kJ/m2,41.15 MPa,64.2 MPa ,1428.15 MPa and 19.2 g/（10 min）, respectively.

关 键 词：马来酸酐接枝乙烯-辛烯共聚物 尼龙66 增韧 增容 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]