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采用A1(OH)3、ZB-2335(硼酸锌-2335)以及Sb2O3等无机阻燃剂对PVC木塑复合材料进行阻燃处理,并通过测定氧指数、拉伸强度、冲击强度项目研究不同的阻燃剂配方及含量对材料的阻燃性能和力学性能的影响。结果表明:(1)随着A1(OH)3,ZB-2335以及Sb2O3添加量的增加,复合材料的氧指数(LOI)都呈现逐渐增大的趋势。Sb2O3阻燃效率最高,当添加量为9份时,氧指数达到35.2%;(2)无机阻燃剂的加入普遍降低了复合材料的冲击强度,但对拉伸强度起到了一定的增强作用。
The flame-retardant treatment of PVC wood-plastic composites with Al (OH) 3, ZB-2335 (zinc borate-2335) and Sb2O3 and other inorganic flame retardants was carried out and the oxygen index, tensile strength and impact strength Effect of formulation and content of flame retardant on flame retardancy and mechanical properties of materials. The results showed that: (1) With the increase of the amount of A1 (OH) 3, ZB-2335 and Sb2O3, the LOI of composites showed a trend of increasing gradually. Sb2O3 has the highest flame-retardant efficiency, and the oxygen index reaches 35.2% when it is added at 9 parts. (2) The addition of inorganic flame retardant generally reduces the impact strength of the composites, but increases the tensile strength to a certain degree.