高填充PVC基木塑复合材料的燃烧性能  

Burning Behavior of PVC-based Wood-Plastic Composite Materials with High Content of Wood Powder

作　　者：韩振[1] 房轶群[1] 王奉强[1] 王清文[1] 

机构地区：[1]生物质材料科学与技术教育部重点实验室(东北林业大学),哈尔滨100040

出　　处：《东北林业大学学报》2010年第10期64-66,共3页Journal of Northeast Forestry University

基　　金：国家自然科学基金(30771680)资助

摘　　要：利用锥形量热仪(CONE)研究了木粉对PVC/木粉复合材料体系(PW)燃烧性能的影响。通过与PVC、加入硼酸锌的PVC和木材对比,结果显示木粉的加入可显著提高PW的成炭率,同时体系质量损失速率、热释放速率、有效燃烧热出现峰值的时间均有所延后,峰值相比PVC体系有所降低,表明PVC和木粉之间存在相互作用,木粉加入对PVC有一定的阻燃作用。通过比消光面积、烟释放速率、总烟释放量以及一氧化碳产率分析了木粉加入对材料烟释放以及CO释放的影响,结果表明木粉的加入也可使复合材料体系烟及CO释放量降低,峰值出现的时间延后,表明木粉的加入对PVC也有一定的抑烟作用。The effect of wood powder on the combustion properties of PVC/wood composites（PW）was studied by using a cone calorimeter.Compared PW with PVC,PVC added zinc borate and wood,it was found that the charring of PW had an appreciable increase,the mass loss rate（MLR）,the heat release rate（HRR）,the effective heat of combustion（EHC）all decreased.It suggested that PVC and wood powder affected each other in the system.PVC accelerated the degradation of wood powder while the presence of wood powder delayed the degradation of PVC.The decreases of specific extinction area,smoke production rate,total smoke production and the yield of carbon monoxide were also considerable.Results show that wood powder has an effective effect on smoke suppression and decrease in amount of CO released from the composites.

关 键 词：锥形量热仪 PVC/木粉复合材料 燃烧性能 

分 类 号：TB332[一般工业技术—材料科学与工程]