摘要
采用硫酸镁和氯化镁作为镁源与三氯化钛为钛源,通过水热煅烧法制备氧化镁(MgO)/二氧化钛(TiO2)复合材料,探究不同酸根离子制备的复合材料性能及对聚氯乙烯(PVC)的影响。结果表明,成功制备以硫酸镁为镁源的复合材料(SMT)和以氯化镁为镁源的复合材料(CMT),SMT为球状,CMT为棒状;SMT使得PVC膜的第一阶段热降解温度提高到265℃,热收缩率降低了31%;CMT则使热降解温度提高到270℃,热收缩率降低了37%;加入复合材料后两种PVC膜的力学性能略微下降;经360 h紫外灯照射后,PVC/CMT的拉伸强度上升幅度最大,断裂伸长率下降幅度最小。综合来看,氯化镁作为镁源制备的棒状复合材料对提高PVC性能有较好的效果。
With magnesium sulfate and magnesium chloride as the magnesium source and TiCl3 as the titanium source,MgO/TiO2 composites were prepared by hydrothermal calcination,and the performance of composites prepared by different acid ions and their influences on polyvinyl chloride(PVC)were explored.The results showed that two composite,SMT with magnesium sulfate as source and CMT with magnesium chloride as source,were successfully prepared,and SMT was spherical and CMT was rod-shaped.SMT increased the first stage thermal degradation temperature of PVC film to 265℃and reduced the thermal shrinkage rate by 31%.CMT increased the thermal degradation temperature to 270℃and reduced the thermal shrinkage rate by 37%.The mechanical properties of the two kinds of PVC films decreased slightly after the addition of compositels.After being irradiated by 360 h ultraviolet lamp radiation,the tensile strength of PVC/CMT increased the most and the elongation at break decreased the least.In general,the rod-shaped composite prepared by magnesium chloride as a magnesium source has a good effect on improving the performance of PVC.
作者
张楠
王刚
苏晓峰
王冲
杨小波
李辉林
董栋栋
Zhang Nan;Wang Gang;Su Xiaofeng;Wang Chong;Yang Xiaobo;Li Huilin;Dong Dongdong(School of Physics and Electronic Information Engineering,Qinghai Nationalities University,Xining 810000,China;College of Chemistry and Chemical Engineering,Qinghai Nationalities University,Xining 810000,China;Qinghai Salt Lake Magnesium Industry Co.Ltd.,Golmud 816000,China;Qinghai Salt Lake Industry Co.,Ltd.,Golmud 816000,China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2021年第1期135-140,共6页
Engineering Plastics Application
基金
青海省科技厅“科技成果转化专项”(2017-GX-106)。
关键词
酸根离子
复合材料
热稳定性
抗老化性能
acid radical ion
composite
thermal stability
anti-aging performance
