摘要
采用硬脂酸(SA)对纳米进行表面活化,考察了改性纳米CaCO3、马来酸酐接枝聚乙烯(PE-g-MAH)分别或共同添加到高密度聚乙烯(HDPE)中形成的复合塑料的拉伸性能.结果表明:用质量分数为7%硬脂酸改性的纳米CaCO3,能较好地促使无机粒子的分散和与HDPE的结合,提高复合塑料的拉伸性能.PE-g-MAH的进一步嫁接作用,可延长硬脂酸分子链,加强硬脂酸和基体树脂之间的缠结作用,从而显著提高了复合塑料的拉伸强度.
The composite plastic have been made from HDPE, PE-g-MAH and nano-CaCO3 which altered by stearic acid. Their tensile properties have been studied. It is important to use 7% stearic acid in order to make inorganic ions dispersing in HDPE and to improve the tensile properties of composite plastic. The molecular length of stearic acid has been extended by bounding with PE-g-MAH. The tensile properties of composite plastic have been increased greatly depending on the intertwist between enlarged stearic acid and HDPE matrix.
出处
《分子科学学报》
CAS
CSCD
2007年第5期340-343,共4页
Journal of Molecular Science
基金
吉林省科技发展计划项目(20060572)
长春市科技发展计划项目(05GG56)
