摘要
采用原位聚合法将硅烷偶联剂(KH-570)包覆在纳米Ti O2和Mg(OH)2表面,并将其分散于聚氯乙烯(PVC)基体中。通过红外光谱、X射线衍射及扫描电镜对添加纳米颗粒前后的PVC材料进行表征。结果表明,Mg(OH)2的加入能够促使纳米Ti O2与其交联,从而减少纳米颗粒的团聚,提高纳米颗粒的分散性能。同时对PVC材料进行紫外屏蔽性能实验以及氧指数的测定实验,其结果表明,当纳米Ti O2和Mg(OH)2质量比为1∶2时,材料的紫外屏蔽性能与阻燃性能最佳。
Nano TiO2 and Mg（OH）2 was grafted by the silane coupling agent KH-570, then it was added to PVC matrix by in-situ polymerization. The infrared spectra （FI-IR）, X-ray diffraction pattern （XRD） , and scanning electron microscopy （SEM） were used to characterized the PVC material before and after the addition of nanomaterial. The results showed that the addition of Mg（OH） 2 can promote erosslinking reaction. Thereby reducing agglomeration of nano-particles and improving the nano particles dispersion. The UV sheld and oxgen index tests were carried out. The results showed that when the mass ratio of nano TiO 2 to Mg（OH） 2 was 1：2, both performance of UV shielding and flame retardant properties of material were the best.
出处
《塑料工业》
CAS
CSCD
北大核心
2015年第1期27-30,57,共5页
China Plastics Industry
基金
中青年科研基金项目(2013-QGY-8)
青海省"昆仑学者"项目
关键词
紫外老化
氧指数
交联
协同改性
UV Ageing
Oxygen Index
Crosslinking
Coordination Modification
