摘要
将插层纳米复合技术与同步互穿聚合物网络(IPN)技术相结合,制备了聚氨酯(PU)/聚甲基丙烯酸甲酯(PMMA)/有机蒙脱土(OMMT)纳米复合材料.用透射电子显微镜(TEM)和力学性能测试研究了该复合材料和相应的PU/PMMA-IPN和PU材料的结构和力学性能.结果表明,PU/PMMA/OMMT纳米复合材料形成了插层/剥离型结构,其力学性能最优.对材料的制备工艺进行了研究,获得优化制备条件是:PU/PMMA质量比为60/40;OMMT,BPO,EGDMA添加量分别为单体MMA质量的5%,0.8%,2.0%,MOCA系数为0.9.
The nano-intercalating technique and the simultaneous interpenetrating polymer network （IPN） method were used together to prepare the nanocomposite of Polyurethane（PU）/Poly （Methyl Methacrylate ） （ PMMA ）/Organo-Montmorillonite （ OMMT ）. The structures and mechanical properties of the prepared nanocomposite and the corresponding PU/PMMA-IPN and PU materials were then investigated by means of TEM and mechanical testing. The results show that PU/PMMA/ OMMT nanocomposite forms an intercalated/exfoliated structure,and that the mechanical properties of PU/PMMA/OMMT nanocomposite are obviously superior to the corresponding materials. The preparation conditions of PU/PMMA/OMMT nanocomposite were also investigated. The results show that when the mass ratio of PU to PMMA ,the contents of OMMT,BPO and EGDMA ,and the MOCA coefficient are respectively 60/40,5.0%,0. 8%,2.0% and 0. 9,the nanocomposite can be prepared in optimal conditions.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
2007年第2期150-154,共5页
Journal of Guangxi University（Natural Science Edition）
基金
广东省自然科学基金团队项目(39172)
广西大学博士启动基金(DD040030)
关键词
蒙脱土
聚氨酯
聚甲基丙烯酸甲酯
互穿聚合物网络
纳米复合材料
montmorillonite
polyurethane
poly （methyl methacrylate ）
interpenetrating polymer network
nanocomposite
