Composites of high-density polyethylene and lignocellulosic fiber residues from banana, papaya, and peach palm trees, in addition to sponge gourd and coconut fiber, were investigated to identify the least flammable composite as a potential substitute for natural pine wood. The high-density polyethylene/lignocellulosic fiber composites were prepared in a twin-screw extruder, injection molded to obtain specimens, and characterized in terms of thermogravimetry, flammability using the UL-94 burning test and limiting oxygen index, impact resistance and heat deflection temperature. The high-density polyethylene/sponge gourd fiber composite showed the best impact resistance and was selected for further tests, with the addition of 10wt% magnesium hydroxide and (or) rice husk ash as flame retardants. The use of both retardants provided greater thermal stability to the composite. The addition of magnesium hydroxide to the high-density polyethylene/sponge gourd fiber composite improved the flammability properties of horizontal burning and thermal stability and is a potential candidate to replace natural wood.

除海绵葫芦和椰子纤维外，还研究了香蕉，木瓜和桃棕榈树中高密度聚乙烯和木质纤维素纤维残留物的复合材料，以确定最不易燃的复合材料作为天然松木的潜在替代品。在双螺杆挤出机中制备高密度聚乙烯/木质纤维素复合材料，注塑成型以获得样品，并通过热重，使用UL-94燃烧测试的可燃性以及极限氧指数，耐冲击性和热变形温度进行表征。高密度聚乙烯/丝瓜纤维复合材料显示出最佳的抗冲击性，并被选择用于进一步测试，添加了10wt％的氢氧化镁和（或）稻壳灰作为阻燃剂。两种阻燃剂的使用为复合材料提供了更高的热稳定性。向高密度聚乙烯/丝瓜纤维复合材料中添加氢氧化镁改善了水平燃烧的可燃性和热稳定性，是替代天然木材的潜在候选者。