Colored layered double hydroxides （LDHs） can be synthesized by introducing colored cations such as Fe^3＋ and Cr^3 ＋, which call be used as thermal stabilizers for polyvinyl chloride （PVC）. The yellowish Mg/Fe an...Colored layered double hydroxides （LDHs） can be synthesized by introducing colored cations such as Fe^3＋ and Cr^3 ＋, which call be used as thermal stabilizers for polyvinyl chloride （PVC）. The yellowish Mg/Fe and bluish Mg/Cr LDHs are prepared by the co-precipitation method. The results show that the MgsCr_ CO3 and Mg3Fe_ CO3 colored layered double hydroxides can stabilize PVC for more than 30 min under the thermal aging temperature of 180 ℃. The preparation can use cheap Mg（OH） 2 instead of MgCl2, which produces a much smaller amount of the by-product NH4Cl. It is known that NH4Cl is a cheap fertilizer that is difficult to sell; therefore, the preparation is much greener and more economic than the one using magnesium salt.展开更多
聚氯乙烯热稳定剂水滑石中阳离子的角色[International Journal of Polymeric Materials,2012,61（2）：124-135]本文描述了以碱性阳离子形成层状结构并间隔阴离子的水滑石热稳定剂的热稳定性能中阳离子所起到的作用。论文利用水热法合...聚氯乙烯热稳定剂水滑石中阳离子的角色[International Journal of Polymeric Materials,2012,61（2）：124-135]本文描述了以碱性阳离子形成层状结构并间隔阴离子的水滑石热稳定剂的热稳定性能中阳离子所起到的作用。论文利用水热法合成了层间包含Clˉ阴离子、碱性阳离子为Mg和Ca的水滑石,对合成得到的样品利用如EDX、XRD、SEM、TGA、FTIR等技术进行了表征,展开更多
基金The Fundamental Research Funds for the Central Universities,the Scientific Innovation Research of College Graduates in Jiangsu Province(No.CXLX12-0105)the Analysis and Test Fund of Southeast University(No.201226)
文摘Colored layered double hydroxides （LDHs） can be synthesized by introducing colored cations such as Fe^3＋ and Cr^3 ＋, which call be used as thermal stabilizers for polyvinyl chloride （PVC）. The yellowish Mg/Fe and bluish Mg/Cr LDHs are prepared by the co-precipitation method. The results show that the MgsCr_ CO3 and Mg3Fe_ CO3 colored layered double hydroxides can stabilize PVC for more than 30 min under the thermal aging temperature of 180 ℃. The preparation can use cheap Mg（OH） 2 instead of MgCl2, which produces a much smaller amount of the by-product NH4Cl. It is known that NH4Cl is a cheap fertilizer that is difficult to sell; therefore, the preparation is much greener and more economic than the one using magnesium salt.
文摘聚氯乙烯热稳定剂水滑石中阳离子的角色[International Journal of Polymeric Materials,2012,61（2）：124-135]本文描述了以碱性阳离子形成层状结构并间隔阴离子的水滑石热稳定剂的热稳定性能中阳离子所起到的作用。论文利用水热法合成了层间包含Clˉ阴离子、碱性阳离子为Mg和Ca的水滑石,对合成得到的样品利用如EDX、XRD、SEM、TGA、FTIR等技术进行了表征,
