玻璃纤维增强木质素/PP复合材料结构和性能的研究  

Structure and Property of Glass Fibers Reinforced Lignin/PP Composites

作　　者：郭栋[1] 陆绍荣[1] 罗崇禧[1] 刘括[1] 凌日华[1] 

机构地区：[1]桂林理工大学有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《现代塑料加工应用》2012年第1期23-26,共4页Modern Plastics Processing and Applications

基　　金：广西科技攻关项目(0992022-4);广西自然科学基金项目(0991003Z;0842003-4A)

摘　　要：采用熔融共混和模压成型方法,制备了玻璃纤维(GF)增强木质素/聚丙烯(PP)复合材料,研究复合材料力学性能、热性能、晶型结构和微观结构。结果表明:当GF加入质量分数为30%时,复合材料的冲击强度、弯曲强度和弯曲模量较未加GF的分别提高了1.21,1.74和0.79倍;热稳定性、结晶性和结晶速率也有明显的提高。利用扫描电镜观察其断裂形貌,探讨其增韧机理。The GF reinforced lignin/PP composites were successfully prepared by compression molding and melt-blending. The mechanical properties, thermal properties, crystal structure, micro-structure of the composites were studied. Experimental results reveal that when 30% GF is added,the impact strength, bending strength and modulus of the GF reinforced lignin/PP composites are 1.21, 1.74 and 0.79 times higher than those of the lignin/PP composites, respectively. And the thermal stability, crystallization rate and degree of crystallinity increase. And the fracture structure of the GF rein- forced lignin/PP composites is investigated by SEM. The mechanism of toughening is also discussed.

关 键 词：聚丙烯 木质素 玻璃纤维 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]