Research on Crosslinking of Polylactide using Low Concentration of Dicumyl Perozide
The effects of dicumyl peroxide (DCP) at low concentrations on initiating cross-linking of polylactide (PLA) by melt blending were investigated. Processing characteristics, morphology,thermal behavior and rheology character of PLA gel were characterized by torque rheometer, XRD,DSC and rotary rheometer. The results showed that the crosslink rate of the blends increased with dicumyl peroxide content increasing. The PLA gel with 0.73 wt% of DCP appeared obvious crystallization behavior and a new crystalline structure maybe formed as DCP was 1.4 wt%. And it was also found that the exothermal peak temperature of PLA gel decreased with increasing dicumyl peroxide content except for the gel with 1.4 wt% of dicumyl peroxide. It also has been inferred by rheology analysis that the blend may be the structure of gel or 3D network, and the melt strength was improved.
Polylactide Dicumyl perozide Polymer Crosslinking
Xu Changgang Luo Xuegang Zhuo Xiurong Liang Lili
School of Material Science and Engineering, Southwest University of Science and Technology,Mianyang, Sichuan, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
189-192
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）