CAJ | 학술논문

采用一步模压法制备了硬质聚氯乙烯（PVC）发泡材料,研究了发泡剂偶氮二甲酰胺（AC）、活化剂氧化锌（ZnO）、交联剂过氧化二异丙苯（DCP）的用量以及成核剂碳酸钙（CaCO3）的种类对PVC泡沫塑料性能的影响;研究了阻燃剂三氧化二锑（Sb2O3）对PVC泡沫塑料阻燃性能的影响.结果表明：当选择PVC树脂100份、钙锌复合稳定剂5份、硬脂酸（Hst）0.2份、PE蜡0.3份、AC5份、ZnO1份、DOP6份、DCP 3份、轻质CaCO310份、模压压力为10.0MPa、模压温度为185℃、模压时间为15min时,可获得泡孔均匀细密、密度较小的高发泡硬质PVC板材,SEM显示泡沫材料泡孔直径为50!m左右.Sb2O3能显著提升PVC泡沫材料的阻燃性能,当Sb2O3用量为8份时,材料氧指数达43.
채용일보모압법제비료경질취록을희（PVC）발포재료,연구료발포제우담이갑선알（AC）、활화제양화자（ZnO）、교련제과양화이이병분（DCP）적용량이급성핵제탄산개（CaCO3）적충류대PVC포말소료성능적영향;연구료조연제삼양화이제（Sb2O3）대PVC포말소료조연성능적영향.결과표명：당선택PVC수지100빈、개자복합은정제5빈、경지산（Hst）0.2빈、PE사0.3빈、AC5빈、ZnO1빈、DOP6빈、DCP 3빈、경질CaCO310빈、모압압력위10.0MPa、모압온도위185℃、모압시간위15min시,가획득포공균균세밀、밀도교소적고발포경질PVC판재,SEM현시포말재료포공직경위50!m좌우.Sb2O3능현저제승PVC포말재료적조연성능,당Sb2O3용량위8빈시,재료양지수체43.
Rigid PVC foam is prepared by one-step compression molding.Effects of various additives such as AC（foaming agent）,ZnO（activator）,DCP（crosslinking agent）,CaCO3（nucleating agent）,Sb2O3（flame retardant）are probed.The result shows that the optimum dosage is：PVC 100,stabilizer 5,Hst 0.2,PE wax 0.3,AC 5,ZnO 1,DOP 6,DCP 3,light CaCO3 10,molding press 10MPa,molding temperature 185℃,molding time 15min,and the foam is endowed with uniform foam cellular structure,lower density.SEM shows that diameters of cells are about 50 SymbolmA@m.Sb2O3 can significantly improve the performance of flame-retardant PVC foam,the limited oxygen index is 43 when the quantity of Sb2O3 is 8.