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利用锥形量热仪在５０ｋＷ·ｍ－２热辐照条件下，研究了含淀粉膨胀阻燃线性低密度聚乙烯（ＬＬＤＰＥ）体系的燃烧性，获得了最大热释放速率、总热释放、有效燃烧热、最大烟产生速率、总烟释放量及质量损失速度等参数．实验结果表明：含淀粉膨胀阻燃剂能明显降低ＬＬＤＰＥ的热释放速率、总热释放和有效燃烧热，淀粉作为膨胀型阻燃剂中的成炭剂，可以部分代替季戊四醇，而对热释放速率影响不大，达到了阻燃和降低成本的目的．该膨胀体系使烟释放变得缓慢，但总烟释放量明显增大．在燃烧时使ＬＬＤＰＥ更早地发生热降解，但热降解速度变得缓慢
The flame retardancy of linear low density polyethylene (LLDPE) system containing starch was investigated by cone calorimeter at 50kW · m-2. The maximum heat release rate, total heat release and effective Combustion heat, smoke generation rate, total smoke release and mass loss rate and other parameters. The experimental results show that the starch-containing intumescent flame retardant can significantly reduce the heat release rate, the total heat release and the effective combustion heat of the LLDPE. As a carbon-forming agent in the intumescent flame retardant, the starch can partially replace the pentaerythritol, while the heat release rate Little effect, to achieve the purpose of flame retardant and reduce costs. The expansion system slowed the release of smoke, but the total smoke release increased significantly. LLDPE undergoes thermal degradation earlier on combustion, but the rate of thermal degradation becomes slower