由长麦秸秆和聚丙烯网制成的轻质复合材料。
Lightweight composites from long wheat straw and polypropylene web.
机构信息
Department of Textiles, Clothing and Design, 234 HECO Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0802, United States.
出版信息
Bioresour Technol. 2010 Mar;101(6):2026-33. doi: 10.1016/j.biortech.2009.10.042. Epub 2009 Nov 24.
Whole and split wheat straws (WS) with length up to 10 cm have been used with polypropylene (PP) webs to make lightweight composites with properties superior to jute-PP composites with the same density. The effect of WS concentration, WS length, and split configuration (half, quarter, and mechanically split) on flexural and tensile properties of the composites has been investigated. The sound absorption properties of composites from whole straw and split straw have been studied. Compared with whole WS-PP composites, mechanically split WS-PP composites have 69% higher flexural strength, 39% higher modulus of elasticity, 18% higher impact resistance properties, 69% higher tensile strength and 26% higher Young's modulus. Compared with jute-PP composites, mechanically split WS-PP composites have 114% higher flexural strength, 38% higher modulus of elasticity, 10% higher tensile strength, 140% higher Young's modulus, better sound absorption properties and 50% lower impact resistance.
已将长度达 10 厘米的整麦秸秆和麦秸秆碎片（WS）与聚丙烯（PP）网结合使用，以制造具有优于同密度黄麻-PP 复合材料性能的轻质复合材料。研究了 WS 浓度、WS 长度和分裂配置（半分裂、四分之一分裂和机械分裂）对复合材料弯曲和拉伸性能的影响。研究了整麦秸秆和麦秸秆碎片复合材料的吸声性能。与整 WS-PP 复合材料相比，机械分裂 WS-PP 复合材料的弯曲强度提高了 69%，弹性模量提高了 39%，抗冲击性能提高了 18%，拉伸强度提高了 69%，杨氏模量提高了 26%。与黄麻-PP 复合材料相比，机械分裂 WS-PP 复合材料的弯曲强度提高了 114%，弹性模量提高了 38%，拉伸强度提高了 10%，杨氏模量提高了 140%，吸声性能更好，抗冲击性能降低了 50%。
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