粒径及填充量对木薯秸秆粉末/PPC复合材料力学性能的影响
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摘要
利用木薯秸秆粉末和可降解的聚碳酸亚丙酯(PPC),采用挤出造粒、热压成型方法制备木塑复合材料,分析木薯秸秆粉末的粒径和填充量对复合材料的力学性能的影响。综合考虑复合材料的力学性能以及木薯秸秆的利用率,确定较优的木薯秸秆粉末粒径为80～140目,填充量为50%。依此条件制备的复合材料,弯曲强度达到GB/T24137-2009《木塑装饰板》的要求(≥20 MPa)。
In order to promote utilization of cassava straw, cassava straw powders were made and blended with degradable polypropylene carbonate(PPC) to make composite samples by extrusion-granulation and hot-press molding method. Effects of the cassava straw powder size and usage on mechanical properties of the composite samples were evaluated.The results showed that bending strength of the composite samples made from cassava straw powder in80-140 meshes and 50% of usage could meet requirements of China national standard GB/T 24137-2009"Wood-plastic decorative board".
In order to promote utilization of cassava straw, cassava straw powders were made and blended with degradable polypropylene carbonate(PPC) to make composite samples by extrusion-granulation and hot-press molding method. Effects of the cassava straw powder size and usage on mechanical properties of the composite samples were evaluated.The results showed that bending strength of the composite samples made from cassava straw powder in80-140 meshes and 50% of usage could meet requirements of China national standard GB/T 24137-2009"Wood-plastic decorative board".
引文
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[12] NORNBERG B, BORCHARDT E, LUINSTRA G A, et al. Wood plastic composites from poly(propylene carbonate)and poplar wood flourMechanical, thermal and morphological properties[J]. European Polymer Journal, 2014, 51(1):167-176.
[13] HAO Y,YANG H,ZHANG H, et al. Effect of an eco-friendly plasticizer on rheological, thermal and mechanical properties of biodegradable poly(propylene carbonate)[J]. Polymer Degradation&Stability, 2016,128:286-293.
[14] ZOU W, CHEN R, ZHANG G, et al. Mechanical, thermal and rheological properties and morphology of poly(lactic acid)/poly(propylene carbonate)blends prepared by vane extruder[J]. Polymers for Advanced Technologies, 2016, 27(11):1430-1437.
[2]沈凡成,贾润礼.木塑复合材料的研究进展与发展前景[J].塑料助剂,2010(1):5-9.
[3]陈汉东.木薯秸秆综合利用技术应用浅析[J].广西农业机械化,2011(5):26-28.
[4]袁纳新,张新昌,余斌,等.木薯秸秆化学成分与应用分析[J].林产工业,2015(2):32-34.
[5]袁纳新,卢俊,李重根,等.木薯茎秆的解剖特性与纤维形态研究[J].华南农业大学学报,2015, 36(3):109-113.
[6]迟正林,李重根,袁纳新,等.木薯秆刨花板初步工艺试验及性能测定[J].广东林业科技,2014(2):58-62.
[7] GE X G, ZHU Q, MENG Y Z. Fabrication and characterization of biodegradable poly(propylene carbonate)/wood flour composites[J].Journal of Applied Polymer Science. 2006, 99(3):782-787.
[8]朱丽贤,张平,姚妮娜,等.木粉粒径和填量对木塑复合材料力学性能影响研究[J].功能材料,2013, 44(17):2451-2454.
[9]鲁捷,徐开蒙,陈勇军,等.高温热处理杨木粉对木塑复合材料界面结合性能影响[J].林产工业,2015, 42(8):25-28.
[10]李红媛,刘文广,张秀成,等.MA对(PC/CaCO_3复合材料力学性能和热稳定性的影响[J].塑料,2012(5):66-69.
[11] WU D, LI W, HAO Y, et al. Mechanical properties, miscibility, thermal stability, and rheology of poly(propylene carbonate)and poly(ethylene-co-vinyl acetate)blends[J]. Polymer Bulletin, 2015, 72(4):851-865.
[12] NORNBERG B, BORCHARDT E, LUINSTRA G A, et al. Wood plastic composites from poly(propylene carbonate)and poplar wood flourMechanical, thermal and morphological properties[J]. European Polymer Journal, 2014, 51(1):167-176.
[13] HAO Y,YANG H,ZHANG H, et al. Effect of an eco-friendly plasticizer on rheological, thermal and mechanical properties of biodegradable poly(propylene carbonate)[J]. Polymer Degradation&Stability, 2016,128:286-293.
[14] ZOU W, CHEN R, ZHANG G, et al. Mechanical, thermal and rheological properties and morphology of poly(lactic acid)/poly(propylene carbonate)blends prepared by vane extruder[J]. Polymers for Advanced Technologies, 2016, 27(11):1430-1437.