摘要
采用脉冲激光轰击浸于流动液相中固体靶的方法,直接连续制备了纳米碳/PMMA的乙酸乙酯溶液,经浇膜法得到了纳米碳/聚甲基丙烯酸甲酯复合材料.光谱分析表明复合体系中存在某种作用,导致该复合材料的玻璃化转变温度明显下降.透射电镜结果表明纳米碳可与聚甲基丙烯酸甲酯形成核/壳结构,使得纳米碳均匀分散于聚合物基体中.热分析结果表明纳米碳的加入对聚甲基丙烯酸甲酯的热分解性能没有显著影响.
Nano carbon/poly（ methyl methacrylate） sols were prepared by a method of pulsed laser ablation at the interface of target submerged in flowing liquid （PLA-IT/SFL）, and the corresponding composite films were prepared by solution-casting. Spectrum studies indicated that there existed interaction between nano carbon particles and the PMMA matrix, which was consistent with the decrease in glass transition temperature of the composites with carbon content. TEM images revealed that a carbon encapsulated core/shell structure was formed in the composites, which could ensure good dispersion of carbon nanoparticles within PMMA matrix. The heat decomposition of the composites was less influenced by the introduction of nano carbon.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2006年第2期320-324,共5页
Acta Polymerica Sinica
基金
国家自然科学基金(基金号50272014)
福建省自然科学基金重大项目(基金号2001F005)
福建省纳米重大专项子项目(项目号2005HZ01-5)资助项目
关键词
脉冲激光轰击
纳米碳
聚甲基丙烯酸甲酯
复合材料
Pulsed laser ablation, Nano carbon, Poly（methyl methacrylate）, Composite materials
