硼酸锌对PVC木塑复合材料的产烟影响  

Influence of zinc borate on smoke emission of polyvinyl chloride wood-plastics composite

作　　者：白晓艳[1] 王清文[2] 

机构地区：[1]呼伦贝尔学院生命科学与化学院,内蒙古海拉尔021008 [2]东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江哈尔滨150040

出　　处：《消防科学与技术》2015年第4期424-427,共4页Fire Science and Technology

基　　金：国家自然科学基金资助项目(31160145);内蒙古自然科学基金项目(2013MS0811)

摘　　要：用热重分析和锥形量热仪测试方法研究硼酸锌对PVC木塑复合材料燃烧过程产烟量的影响。样品由热压机压制成型,采用锥形量热仪、色谱、质谱对样品进行表征。研究结果表明:在WF-PVC中加入硼酸锌使热解过程残炭量增加52.83%,总产烟量降低55.8%,硼酸锌对WF-PVC阻燃与抑烟效果显著。PY-GC-MS分析表明:与PVC相比,WFPVC样品热解过程产生的氯化氢含量降低了66.03%;WFPVC中加入硼酸锌,热解产物HCl的含量增加1.64%。WFPVC和添加硼酸锌的样品燃烧产物中烷烃的含量分别增加29.15%和24.31%,烟毒性降低。WF-PVC样品燃烧产物烟毒性的来源主要是组分中烷烃类化合物、醛酮类化合物、多环化合物的数量。The effects of Zinc Borate on pyrolysis and combustion behaviors of PVC wood-plastic composite （WF--PVC） were in- vestigated by Thermogravimetry analysis （TGA） and Cone cal- orimeter （CONE） analysis methods. The samples were pro- duced by thermocompressor and characterized by CONE, chro- matography and mass spectrum. It showed that the addition of Zinc Borate had significant effect on flame retardant and smoke suppression of WF--PVC, and it could make residues increased by 52. 83%. The Total smoking production （TSP） of WF-- PVC decreased 55.8% with the introduction of Zinc Borate. PY --GC--MS analysis showed that the content of hydrogen chlo- ride respectively decreased by 66. 03% and 1. 64% in WF-- PVC and meanwhile WF--PVC and the sample added Zinc Bo- rate had the content of alkanes respectively increased to 29. 15% and 24. 31%. The smoke toxicity of samples was de- creased. The toxicity of combustion products of WF- PVC mainly arose from the numbers of alkanes compounds, aldehyde ketone compounds and polycyclic compounds.

关 键 词：PVC木塑复合材料 锥形量热仪 PY—GC—MS 硼酸锌 燃烧与热解 

分 类 号：X913.4[环境科学与工程—安全科学] TK121[动力工程及工程热物理—工程热物理]