摘要
采用自制耐热改性剂N-苯基马来酰亚胺-马来酸酐二元共聚物(NMA)与纳米有机蒙脱土(nanoOMMT)复配对聚酰胺(PA)6进行共混改性,研究了不同m(NMA)∶m(nano-OMMT)对PA 6熔融结晶行为、热性能及力学性能的影响。结果表明:nano-OMMT剥离分散在PA 6基体中;随着nano-OMMT含量增加,PA 6/NMA/nano-OMMT复合材料的熔融温度、结晶温度、结晶度及熔融焓均先升后降;m(NMA)∶m(nano-OMMT)为8∶2时,复合材料弯曲强度、弯曲模量、拉伸强度和负荷变形温度均达最大,分别为117.1,3 301,80.5 MPa及82.7℃,较不加nano-OMMT分别提高21.2%,25.0%,12.9%,27.8%。
Polyamide（PA）6 was modified by a self-made compound heat resistant modifier of N-phenylmaleimide-maleic anhydride copolymer（NMA）and nano-organic montmorillonite（nano-OMMT）. The effects of different mass ratios on crystallization and melting behavior,thermal properties and mechanical properties of PA 6 were studied. The results show that the layers of nano-OMMT are exfoliated and distributed in PA 6 matrix. The melting temperature,crystallization temperature,crystallinity and melting enthalpy of the PA 6/NMA/nano-OMMT composites increase first and then decrease with the increment of nano-OMMT content. When the mass ratio of NMA to nano-OMMT is 8∶2,the composite has the highest flexural strength,flexural modulus,tensile strength and distortion temperature under load,which are 117.1,3 301,80.5 MPa and 82.7 ℃,and 21.2%,25.0%,12.9%,27.8% higher than those of the composite without nano-OMMT respectively.
出处
《合成树脂及塑料》
CAS
北大核心
2015年第2期10-14,共5页
China Synthetic Resin and Plastics
基金
贵州省科学技术基金([2013]2122)
贵州省科技计划项目([2010]5005)
贵州省科技计划
科特派CQY[2013]4007号
