无机阻燃剂对PVC/木粉复合材料性能的影响

分别采用A1(OH)3、ZB以及Sb2O3等无机阻燃剂对PVC/木粉复合材料改性,研究不同的阻燃剂配方及阻燃剂含量对PVC/木粉复合材料阻燃性能和力学性能的影响。结果表明:随着A1(OH)3,ZB以及Sb2O3添加量的增加,PVC/木粉复合材料的氧指数(LOI)呈逐渐增大的趋势。Sb2O3阻燃效率最高,当添加量为9份时,氧指数达到35.2%;无机阻燃剂的加入普遍降低了PVC/木粉复合材料的冲击韧性,但对拉伸强度起到了一定的增强作用。

Study on the flame retardation and properties of PVC/Wood composite material by inorganic flame retardant

Poly（vinyl chloride）-wood（PVC/wood） composite material was flame retarded using AI（OH）3, ZB and Sb203.And the effects of different flame retardant formulations and content on the mechanic property, flame retardancy of the PVC/wood composite material were studied. The result indicated that： the LOI of the composites increased with increasing content of AI（OH）3, ZB and Sb2O3. Sb2O3 has the most flame retarding efficiency. LOI can reach as much as 35.2% when the content of Sb2O3 was 9 phr. AI（OH）3、 ZB and Sb2O3 were all improved the tensile strength. However all of them were harmful to the unnotched izod impact strength of the composites.