蒙脱土改性酚醛树脂复合材料的制备与性能研究  

STUDY ON THE SYNTHESIS AND PROPERTIES OF PHENOL FORMALDEHYDE RESIN/MONTMORILLONITE NANOCOMPOSITES

作　　者：李成钢[1] 王继刚[1] 

机构地区：[1]东南大学材料科学与工程学院,江苏省先进金属材料高技术研究重点实验室,南京211189

出　　处：《工程塑料应用》2011年第5期8-11,共4页Engineering Plastics Application

基　　金：国家自然科学基金项目(208740110)

摘　　要：为提高酚醛树脂(PF)的热稳定性,利用原位插层法制备了PF/蒙脱土(MMT)、PF/有机化蒙脱土(OM-MT)纳米复合材料,并比较了PF、PF/OMMT或PF/MMT经高温热处理后的力学性能和导电性能。研究表明,与PF复合后,OMMT和MMT都形成了剥离型的片层结构。与PF/OMMT复合材料相比,PF/MMT的质量保持率更高,压缩强度也得到了明显改善。700℃热处理后PF/MMT的电阻率为2.73Ω.cm,远大于PF的电阻率(0.55Ω.cm),说明PF/MMT的耐热性得到了提高,700℃热处理后仍保留了一定的有机结构。The phenol formaldehyde resin （PF）/montmorillonite （MMT） and PF/organie montmorillonite （OMMT） nano- composites were prepared by in-situ intercalative polymerization to improve the thermal stability of PF, and the mechanical and electrical properties of PF, PF/OMMT, PF/MMT after heat-treatment were compared. Results showed that PF/OMMT and PF/MMT were both exfoliation nanocomposites, comparing with PF/OMMT, the residual char yield of PF/MMT was increased more obviously, and the compressive strength was greatly improved too. The resistivity of PF and PF/MMT after being heat-treated at 700℃ were 0. 55Ω cm and 2.73 Ω· cm, which demonstrated that the heat-resistant temperature of PF/MMT was improved, and a certain organic structure was maintained.

关 键 词：酚醛树脂 蒙脱土 复合材料 剥离型 耐热性 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]