论文部分内容阅读
主要采用成核/晶化隔离法制备纳米双羟基复合金属氧化物(LDH)并改性,再用乳液聚合法合成丙烯酸树脂/LDH纳米复合乳液。利用FTIR、SEM和材料试验机对其进行结构和力学性能表征。结果表明:最佳反应温度为80℃,反应时间为2.5 h,催化剂的用量为0.2 g。并在该条件下成功地合成了丙烯酸树脂/LDH纳米复合材料;并随着LDH含量的增加其成膜速度,膜的透明度,耐老化性都有所提高;但当LDH的含量超过一定值时,其各项性能呈下降趋势。当LDH的含量为3%时,复合材料的各项性能均达到了最佳状态。
The nano-hydroxy-composite metal oxide (LDH) is mainly prepared by nucleation / crystallization isolation method and modified, then the acrylic resin / LDH nano-composite emulsion is synthesized by emulsion polymerization. The structure and mechanical properties were characterized by FTIR, SEM and material testing machine. The results showed that the optimal reaction temperature was 80 ℃, the reaction time was 2.5 h and the amount of catalyst was 0.2 g. And successfully synthesized acrylic resin / LDH nanocomposites under the conditions; and with the increase of LDH content, the film formation rate, the transparency of the film and the aging resistance are improved; but when the LDH content exceeds a certain value , Its performance showed a downward trend. When the content of LDH is 3%, the properties of the composites reach the best condition.