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林产化学与工业

林产化学与工业 ›› 2009, Vol. 29 ›› Issue (3): 25-30.

• 研究报告 • 上一篇    下一篇

微晶纤维素丙烯酸酯复合微球的制备及性能研究与运用

陈日清1,2, 蒋煜2, 金立维1,2, 王春鹏1,2, 储富祥1   

  1. 1. 中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局, 林产化学工程重点开放型实验室, 江苏 南京 210042;2. 中国林业科学研究院林业新技术研究所, 北京, 100091
  • 收稿日期:2008-09-11 修回日期:1900-01-01 出版日期:2009-06-30 发布日期:2009-06-30
  • 通讯作者: 储富祥(1963- ),研究员,博士,博士生导师,从事乳液聚合、胶黏剂及生物质材料研究工作。

Study on Preparation,Properties and Application of Avicel-acrylate Composite Microsphere

CHEN Ri-qing1,2, JIANG Yu2, JIN Li-wei1,2, WANG Chun-peng1,2, CHU Fu-xiang1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China
  • Received:2008-09-11 Revised:1900-01-01 Online:2009-06-30 Published:2009-06-30

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摘要： 采用反相悬浮聚合法制备微晶纤维素丙烯酸酯复合微球,在油水比(O/W,质量比)为2.4:1,烷基酚聚氧乙烯醚(OP)与十二烷基硫酸钠(SLS)质量比为4:1,甲基丙烯酸甲酯(MMA)、丙烯酸正丁酯(BA)与N-羟甲基丙烯酰胺(NMA)为35:15:3和搅拌速率为200～400r/min 条件下,可以得到微晶纤维素丙烯酸酯复合微球。而且对微球的内部结构、性能和微晶纤维素反应前后结晶度进行了分析。结果表明,微晶纤维素参与了交联并被包埋在聚丙烯酸酯内部。将粒径为 85nm 左右的复合微球与聚甲基丙烯酸甲酯(PMMA)共混制备膜塑料,可以得到弯曲性能优异、吸水率低的黄色半透明的模塑料。

关键词: 微晶纤维素, 丙烯酸酯, 复合微球, 模塑料

Abstract: Avicel-acrylate composite microsphere was prepared using inverse-phase suspension polymerization under following conditions:oil phase/water phase (O/W,mass ratio)2.4:1,mass ratio of alkylphenol ethoxylate (OP) and sodium lauryl sulfate (SLS) 4:1,mass ratio of methyl methacrylate (MMA), butyl acrylate (BA) and N-hydroxymethyl acrylamide (NMA) 35:15:3, and stirring speed 200-400r/min. Results of analysis on interior structure and properties of microsphere, crystallinity of avicel before and after reaction indicated that avicel participated crosslinking reaction and was encapsulated by polyacrylate. High flexural performance of translucent yellow molding plastics with low water absorption was obtained by blending composite microspheres of 85nm diameter with polymethyl methacrylate (PMMA).

Key words: avicel, acrylate, composite microsphere, molding plastics

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