以福建龙岩高岭土为主要原料, 用沉降的方法得到平均粒径为1.75 μm的沉降高岭土。 用DMSO插层高岭土, 后用苯乙烯单体取代前驱体中的DMSO分子, 产物经四氯化碳洗涤后, 在马弗炉中270 ℃本体聚合2 h得到高岭土/聚苯乙烯复合物。 红外在1 453, 1 499和1 606 cm-1的吸收振动峰证明了聚苯乙烯的存在。 XRD结果显示高岭土层间距0.712 nm, 苯乙烯聚合后片状结构已经被剥离。 热重显示聚苯乙烯占复合物质量的40%, 还有约5%的未除去DMSO和4.8%的羟基, 估算出高岭土∶聚苯乙烯=1.375∶1(质量比)。 扫描电镜也验证了这种剥离。

The synergistic stabilization effect of different metal lanolin fatty acids as natural-based thermal stabilizers for poly (vinyl chloride) (PVC) including calcium lanolin fatty acid (Calan2), zinc lanolin fatty acid (Znlan2) and Lanthanum lanolin fatty acid (Lalan3) were studied. The processability of PVC was tested by torque rheometer, the mechanical properties were studied by universal testing machine, and the coupling effect of product in PVC/CaCO3 was also researched. The results indicated that the properties of Lan/Zn stabilizer was better than Ca/Zn stabilizer and compound lead salt except static stability and dynamic stability.