Sb₂O₃－ZnSn(OH)₆－ZnNH₄PO₄阻燃体系的研究

来源期刊：中南大学学报(自然科学版)1995年第6期

论文作者：赵瑞荣 石西昌 蒋汉瀛 王建峰

文章页码：744 - 748

关键词：三氧化二锑; 阻燃剂; 聚氯乙烯/锡酸锌; 磷酸铵锌; 氧指数

Key words：antimony trioxide; flame retardants; polyvinyl chloride /ZnSn(OH)₆; ZnNH₄PO₄; oxygen index

摘    要：研究了在聚氯乙烯(PVC)中, Sb₂O₃－ZnSn(OH)₆, Sb₂O₃－ZnNH₄PO₄,ZnSn(OH)₆－ZnNH₄PO₄二元体系的协同阻燃性能,以及Sb₂O₃－ZnSn(OH)6－ZnNH4PO4三元系的阻燃性能,采用混料回归实验设计,导出了三元系氧指数与阻燃剂含量关系的数学模型,经计算机计算并绘制出了氧指数等值图,该体系中Sb₂O₃－ZnSn(OH)₆,Sb₂O₃－ZnNH₄PO₄复配具有正的协同作用,而ZnSn(OH)₆－ZnNH₄PO₄复配则表现为负的协同作用。

Abstract: The synergistic flame retardant properties of Sb₂O₃-ZnSn(OH)₆-ZnNH₄PO₄ andZnNH₄PO₄-ZnSn(OH)₆ binary systems and the flame retardant property of Sb₂O₃-ZnSn(OH)₆-ZnNH₄PO₄ system in polyvinyl chloride(PVC)were studied in the paper,The mix-ture regression test was used to study the tri-ingredient system,and deduced a mathematicalmodel of the Limit Oxygen index(Io2)vs. content of flame retardant.An Oxygen Index e-qual value figure was calculated and made by computer. In the system,Sb₂O₃ and ZnSn(OH)₆ have a great effect on flame retardant property of PVC,but ZnNH₄PO₄ has a slight ef-fect. The Sb₂O₃-ZnSn(OH)₆ and Sb₂O₃-ZnNH₄PO₄ system exhibits positive synergism,butZnSn(OH)₆.ZnNH₄PO₄ system shows negative synergism.