正交试验法优化ACR增韧PLA的制备工艺  

Optimization of Preparation Process of ACR Toughened PLA by Orthogonal Experiment

作　　者：高金钰 赵赫[1] 张求学 邓云娇[1] Gao Jinyu;Zhao He;Zhang Qiuxue;Deng Yunjiao(Engineering Research Center of Synthetic Resin and Special Fiber of Ministry of Education,Changchun Univeristy of Technology,Changchun130012,China)

机构地区：[1]长春工业大学合成树脂与特种纤维教育部工程研究中心

出　　处：《塑料科技》2018年第11期49-53,共5页Plastics Science and Technology

摘　　要：采用乳液聚合法制备了一系列核壳型增韧改性mACR并用于聚乳酸（PLA）的增韧。利用L16（4^5）正交试验设计方法。研究了ACR粒子的校壳比,粒经,用量以及交联剂用量对共混体系结构和性能的影响。结果得出增韧PLA的最佳工艺条件为：ACR核壳比75／25，垃径约185．0nm，用量20％，交联剂用量0．5％。此时PLA／ACR共混物的冲击强度为29．128kJ/m^2。约为纯PLA的11倍。极差分析结果表明，ACR用量和核壳比是影响增韧效果的主要因素。A series of core-shell toughening modifier ACR was used to toughen poly（lactic acid） （PLA） by emulsion polymerization. The effects of core-shell ratio, particle size, amount of crosslinking agent and crosslinking agent on the structure and properties of ACR blends were studied by L16（4s） orthogonal experimental design method. The optimum technological conditions for toughening PLA were obtained, ACR core shell ratio is 75125, the particle size is about 185 nm, the dosage is 20%, and the crosslinking agent dosage is 0.5%. The impact strength of PLAJACR blends is 29.128 k Jim2, which is about 11 times as pure PLA. The results of range analysis show that the amount of ACR and the core/shell ratio are the main factors affecting the toughening effect.

关 键 词：正交试验 核壳型丙烯酸隧类增韧剂 聚乳酸1增韧 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]