含柔性链超分散剂对SF/PP木塑复合材料结构和性能的影响  

Structure and Property of SF/PP Wood-Plastic Composites Affected by Super-Dispersant Containing Flexible Segment

作　　者：刘婷[1] 陆绍荣[1] 王一靓[1] 班建峰[1] 阳志有[1] 

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

出　　处：《高分子材料科学与工程》2011年第1期84-87,共4页Polymer Materials Science & Engineering

基　　金：广西科技攻关项目(0992022-4);广西自科基金项目(0991003Z;0842003-4A);广西高校优秀人才资助计划(08817)

摘　　要：以马来酸酐(MA)、聚乙二醇(PEG)、烯丙基磺酸钠(SAS)等为原料,通过自由基共聚合成了含柔性链且具有两亲结构的水溶性超分散剂。研究了复合材料的力学性能、热性能、晶型结构和微观结构,探讨了复合材料的界面增容机理。结果表明,当超分散剂的用量为3%(质量分数,下同)时,复合材料的冲击强度达22.09 kJ/m2,比未经超分散剂处理的复合材料提高了40%,材料的结晶度也有所提高,但晶型仍以α-PP为主。Super-dispersant containing the flexible chain structure with hydrophilic and hydrophobic groups was synthesized by using maleic anhydride（MA）,polyethylene glycol（PEG）,sodium allyl sulphonate（SAS）,etc as raw materials through radical copolymeriation.The mechanical properties,thermal properties,crystal structure, micro-structure and the mechanism of the interface capacity of composite materials were studied in detail.The results show that when the amount of poly-dispersant up to 3% the impact strength of composite is 22.09 kJ/m2,which is 40% higher than that of unmodified system,and the degree of crystallinity of composites is also increased.But the crystalline form of PP is still the main α crystal form.

关 键 词：剑麻纤维 聚丙烯 超分散剂 木塑复合材料 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]