【摘要】 将协效剂白炭黑、硼酸锌、低熔点玻璃和硅烷偶联剂、铝酸酯偶联剂分别添加到碳酸镁/氢氧化铝复配阻燃的线型低密度聚乙(烯LLDPE体)系中,考察了这些助剂对体系阻燃性能和力学性能的影响。结果表明:几种助剂对体系的氧指数影响较小;白炭黑可以明显提高体系的拉伸强度,硼酸锌对体系的断裂伸长率影响最小;对拉伸强度而言使,用铝酸酯偶联剂优于硅烷偶联剂。更多还原

【Abstract】 Several synergistic agents and two kind of coupling agents were added into the flame-retardant LLDPE system with magnesium carbonate and aluminium hydroxide compound, and the effects of additives on the flame retardant and mechanical properties of LLDPE system were studied. The results show that several synergistic agents have slight effect on oxygen index of the system, silica can improve the tensile strength evidently, and zinc borate has little influence on the elongation at break of the system.As far as the tensile strength is concerned, aluminate coupling agent is better than silane coupling agent.更多还原