POSS杂化环氧丙烯酸树脂的合成及应用  

Preparation and Application of POSS Hybrid Epoxy Acrylic Resin

作　　者：卢攀 安秋凤[1] 杨博文 邱甲云 Pan Lu;Qiufeng An;Bowen Yang;Jiayun Qiu(Shaanxi Provincial Key Laboratory of Light Chemical Additives,Shaanxi University of Science and Technology,Xi'an 710021,China)

机构地区：[1]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021

出　　处：《高分子材料科学与工程》2023年第4期1-7,16,共8页Polymer Materials Science & Engineering

基　　金：陕西省重点研发计划(2020ZDLGY13-11);国家科技部重点研发计划(2017YFB0307700)。

摘　　要：通过自由基聚合的方式将POSS嫁接在环氧丙烯酸树脂链段中,制备出一种POSS杂化的环氧丙烯酸树脂(POSS-co-APA),研究了不同POSS用量对杂化树脂热稳定性能的影响;将POSS-co-APA作为改性剂添加到环氧树脂E51体系中制备复合涂层(PED),探讨了不同POSS-co-APA改性剂添加量对复合涂层性能的影响。结果表明,当POSS质量分数为3%时,POSS-co-APA热稳定性能最优;当改性剂质量分数为5%时,改性环氧涂层硬度最大为6H,断裂伸长率最大为5.2%;当改性剂质量分数为7%时,改性环氧涂层疏水性能最优,疏水角可达110°。POSS was grafted onto the chain segments of epoxy acrylic resin by free radical polymerization to prepare POSS hybrid epoxy acrylic resin(POSS-co-APA).The influence of different amounts of POSS on the thermal stability of the hybrid resins was studied.Then,POSS-co-APA as modifier was added into epoxy the E51 system to prepare the composite coatings.The influence of different amounts of modifier on the performance of the composite coatings was discussed.The results show that when the mass fractions of POSS is 3%,the thermal stability of POSS-co-APA is the best;the maximum hardness of the modified epoxy coating is 6 h and the maximum elongation at break is 5.2%when the mass fraction of modifier is 5%;when the mass fraction of modifier is 7%,the hydrophobic property of the modified epoxy coating is the best and the hydrophobic angle can reach 110°.

关 键 词：POSS改性 环氧树脂 增韧 疏水性 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]