水滑石
热稳定性
热液循环
材料科学
盐酸
降水
水热合成
氯化物
傅里叶变换红外光谱
化学工程
无机化学
有机化学
化学
冶金
催化作用
气象学
工程类
物理
作者
Guifang Du,Zhaogang Liu,Peijie Jia,Jinsheng Duan,Renzhi Ma,Yonggang Liu,Fushan Feng,Yanhong Hu,Jianjun Wu
摘要
Abstract In this research, ZnAlLa‐itaconate‐LDHs was synthesized by means of Co‐precipitation‐hydrothermal method. The effects of aluminum‐lanthanum ratio, co‐precipitation time, hydrothermal time, and hydrothermal temperature on the crystal structure were studied. As a result, the optimum condition was found to be: n(Al 3+ ): n(La 3+ ) = 10:1, co‐precipitation time 24 h, hydrothermal time 8 h, and hydrothermal temperature 180°C. The influence of ZnAlLa‐itaconate‐LDHs on the thermal stability properties and plasticizing properties of PVC were investigated, exhibiting long‐term stability of 76 min with short plasticizing time of 1.11 min. Long‐term thermal stability mechanism was studied by FTIR before and after hydrochloric acid treatment. It was demonstrated that the thermal stabilizer ZnAlLa‐itaconate‐LDHs prevented the rupture of the CCl bond in PVC and inhibited the development of HCl. Consequently, impeded the production of CC bond and playing a role in thermal stabilization of PVC.
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