森林与环境学报2018，Vol.38Issue(3)：284-289,6.DOI:10.13324/j.cnki.jfcf.2018.03.005
混合木粉质量比对木塑复合材料性能的影响
Influence of ratio of hybrid wood flour on physical and mechanical properties of wood-plastic composites
摘要
Abstract
Utilize their thinning residues and wood processing remains to prepare composites would contribute to reducing of environmental pollution,increasing the added value,and creating a good economic benefit.Pinus massoniana and Cunninghamia lanceolata flour were mixed and then used to reinforce high-density polyethylene(HDPE)by extrusion method.The effects of P.massoniana/C.lanceolata flour ratio on the density,color and dimension stability,bending property,tensile property,and impact strength of the result composites were evaluated.Dynamic mechanical properties of the composites were also analyzed.The results showed that when the proportion of P.massoniana flour reduced,there was no difference in the density of the composites,however,the surface lightness value and yellow blue axis chromatic index showed a trend of decrease.The water-absorbing dimensional stability of C.lanceolata flour/HDPE composite was good as the water absorption rate and water absorption swelling of 24 h were 2.412％and 1.411％,respectively,which proved the composite was suitable to use in outdoor humid environment.As P.massoniana flour content decreased,the composite increased in storage modulus,decreased in both loss modulus and loss tangent,and improved its mechanical performance.Comparing to the composite containing 60％P.massoniana flour,the composite without P.massoniana flour increased in modulus of rupture(MOR)and modulus of elasticity(MOE)by 47.58％and 25.00％,respectively,tensile strength and modulus by 92.52％and 120.00％,respectively,the impact strength by 70.03％.关键词
马尾松/杉木/混合木粉/质量比/木塑复合材料/物理性能/力学性能Key words
Pinus massoniana Lamb./Cunninghamia lanceolata ( Lamb.) Hook./hybrid wood flour/mass ratio/wood-plastic composite/physical properties/mechanical properties分类
农业科技引用本文复制引用
曹岩,徐海龙,郝建秀,李利芬..混合木粉质量比对木塑复合材料性能的影响[J].森林与环境学报,2018,38(3):284-289,6.基金项目
国家自然科学基金项目(31460171) （31460171）
贵州省科学技术基金计划(黔科合J字[2015]2075) （黔科合J字[2015]2075）
贵州省教育厅项目(黔教合KY字[2016]003、黔教合KY字[2017]003、黔教合KY字[2017]136) （黔教合KY字[2016]003、黔教合KY字[2017]003、黔教合KY字[2017]136）
贵州民族大学教改项目(GUN2016JG29) （GUN2016JG29）
贵州大学引进人才项目(贵大人基合字[2015]66). （贵大人基合字[2015]66）
