Effects of Bivalve Shell Particles of Hyriopsis Cumingii on the Performances of Epozy Resin Studied by Positron Annihilation
(0) The toughening and reinforcing behavior of shell particles in micrometer level to epoxy resin (EP) matrix has been studied from the aspect of free volume. The added shell particle was hard to enter the free volume hole of EP matrix for its size in micrometer level. The particle could occupy a number of free volume holes of the EP matrix. Accordingly, this would lead to a decrease in the total free volume concentration of the composites. The organic phase within shell particles is much help to improve the interfacial adhesion between the shell particles and EP matrix. More interfacial layers would form between the uniformly dispersed shell particles and EP matrix. Similar trends of I2 were observed in this system with in other nanocomposites. This good interfacial property was much helpful to stress transitions between the matrix and particles while the composites were performed with outside force. On the other hand, shell particles themselves had good properties (both fracture toughness and hardness). Thus, the composites with appropriate amounts of shell particles filled could achieve higher impact strength and modulus than pure EP.
Xudong Sun Chenze Qi Minfeng Zeng Yun Wang Genzhong Ji Xiandong Yao Yongmiao Shen Ning Chen Fengyuan Yan Baoyi Wang
Institute of Applied Chemistry,Shaoxing University,Shaoxing 312000,Peoples Republic of China；Lanzho Institute of Applied Chemistry,Shaoxing University,Shaoxing 312000,Peoples Republic of China Lanzhou Institute of Chemical Physics,Chinese Academy of Science,Lanzhou,730000,Peoples Republic of Institute of High Energy Physics,Chinese Academy of Science,Beijing 100049,Peoples Republic of Chin
国际会议
第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)
武汉
英文
65
2008-05-11（万方平台首次上网日期，不代表论文的发表时间）