摘要
研究了不同工艺对阻燃利乐粉/高密度聚乙烯(HDPE)复合材料的阻燃性能和力学性能影响。实验结果表明:热压法制备利乐粉/HDPE阻燃木塑复合材料的最佳工艺条件是加压时间15 min,温度为160℃,压力为10MPa,利用最佳工艺条件制成的样品,氧指数可达28.31%,弯曲强度为44.17 MPa,拉伸强度为16.98 MPa;对比热压法和注塑法,注塑法制备的阻燃木塑复合材料具有更良好的力学性能和阻燃性能,且注塑法制备的复合材料燃烧残余物的炭层更致密和稳定;SEM和FTIR分析表明挤出注塑法和热压法制备的阻燃木塑复合材料燃烧残余物的红外图谱的峰与设计目标产物的特征峰一致,材料具有阻燃性。
The influence of mechanical properties and flame retardancy of tetra pak powder/HDPE composites by different ways of preparation method were studied.By orthogonal tests,the optimum technology manufacturing condition by the hot-press approach on Tetra Pak powder/HDPE flame-retarded wood-plastic composites was obtained：the clamping time was 15 min,the temperature was 160 ℃,and the pressure was 10 MPa.In the optimum technology condition,the oxygen index of the sample was 28.31％,bending strength was 44.17 MPa,and tensile strength was 16.98 MPa.Contrasting the hot-press approach with the injection molding,the flame-retarded wood-plastic composites had better mechanical properties and flame-retarded properties when manufactured by the injection molding,and the carbon layer and expansion of the composites material burning residue were more compacted and stable after injection molding.The SEM and FTIR analysis showed that extrusion molding method and hot pressing the prepared flame retardant WPC composite combustion residue of infrared spectrum was consistent with the design target product characteristic peak,the material had flame retardancy.
出处
《塑料工业》
CAS
CSCD
北大核心
2013年第8期124-129,共6页
China Plastics Industry
基金
江苏高校优势学科建设工程资助项目
关键词
利乐包装废弃物
阻燃性能
力学性能
挤出注塑法
热压法
Tetra Pak Powder
Flame Retardance
Mechanical Properties
Extrusion Molding Method
Hot Pressing
