摘要
用阴离子原位聚合法制备聚醚砜/MC尼龙6原位复合材料,研究了聚醚砜与己内酰胺、尼龙6各组分之间的相互作用.结果表明,依靠其组分之间强烈的作用力,使PES能以较小的相畴均匀的分散在尼龙6基体中;酰胺基团上的氢原子能与聚醚砜中的砜基之间产生氢键作用,从而促进了聚醚砜在己内酰胺熔体中的溶解.聚醚砜与尼龙6之间的这种氢键互作用,强烈抑制了尼龙6的分解过程,提高了复合材料的热稳定性,2%PES时,其分解温度提高了79℃.较小含量的PES对复合材料的力学性能影响较小,当其含量超过4%时,尽管复合材料的强度有所下降,但韧性显著提高,体现了刚性有机粒子增韧的作用.
The anion ring-open polymerization was employed to prepare the poly（ether sulphone）（PES）/nylon6 in-situ composites and the interactions among the ε-caprolactam（CL）, PES and nylon6 were also studied. It indicated that the PES could be uniformly dispersed in melt ε-caprolactam with small domains depending on the strong interaction between the components. The hydrogen bonding was formed between the hydrogen atom on acid amide groups and the sulphone on PES resulting in the process of the dissolution of PES in melt ε-caprolactam being greatly accelerated. The process of its thermal decomposition was also heavily inhibited and the thermo stability was greatly increased because of the strong interaction between the nylon6 and PES. Only adding 2% PES into the composite, the thermal decomposition temperature was increased 79 ℃ compared with the pure nylon6. As the PES content was more than 4% in the composite, the mechanical strength was slightly decreased, but the toughness of the material was hugely increased.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
2008年第1期87-92,共6页
Chinese Journal of Materials Research
基金
国家自然科学基金50603007
50673030
教育部科学技术研究重点207146资助项目.
关键词
复合材料
MC尼龙6
聚醚砜
阴离子原位聚合
composites, MC nylon 6, poly（ether sulphone）, anionic in-situ polymerization
