两种改性方法对桉木单板/聚乙烯膜复合材料力学性能影响
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摘要
为提高塑料疏水表面与单板亲水表面之间的界面相容性,以聚乙烯薄膜为无甲醛胶黏剂制备复合材料。分析了热处理、碱处理对界面性能影响,确定了制备此类材料的优化工艺:热处理温度140℃,处理时间1 h,碱浓度3%时,复合材料力学性能较佳;热处理、碱处理可以增强复合材料的界面性能。
In order to improve the interface compatibility between the two materials, a composite material was prepared using a polyethylene film as a formaldehyde-free adhesive. The effects of heat treatment and alkali treatment on the adhesion of the veneer were analyzed, and the optimal process heat treatment temperature for the preparation of this material was 140℃, the treatment time was 1 hour, and the alkali concentration was 3%.The mechanical properties of the composites were comparatively good. The heat treatment and alkali treatment can enhance the interface compatibility of the composites.
In order to improve the interface compatibility between the two materials, a composite material was prepared using a polyethylene film as a formaldehyde-free adhesive. The effects of heat treatment and alkali treatment on the adhesion of the veneer were analyzed, and the optimal process heat treatment temperature for the preparation of this material was 140℃, the treatment time was 1 hour, and the alkali concentration was 3%.The mechanical properties of the composites were comparatively good. The heat treatment and alkali treatment can enhance the interface compatibility of the composites.
引文
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[4]Fang L,Wang Z,Xiong X.Properties of silane modified poplar veneer/high density polyethylene film composites with varying pressing temperatures[J].Journal of Zhejiang A&F University,2016.
[5]Fang L,Chang L,Guo W J,et al.Influence of silane surface modification of veneer on interfacial adhesion of wood-plastic plywood[J].Applied Surface Science,2014,288(1):682-689.
[6]Tufan M,Akba?S,Güle?T,et al.The oligocyclocarbonate influence on dynamic mechanical analysis data and mechanical properties of epoxy polymer[J].Neuroscientist,2010,6(1):142-154.
[7]Tufan M,Akba?S,Yurdakul S,et al.Effects of different filler types on decay resistance and thermal,physical,and mechanical properties of recycled high-density polyethylene composites[J].Iranian Polymer Journal,2016,25(7):1-8.
[8]Fang L,Xiong X,Wang X,et al.Effects of surface modification methods on mechanical and interfacial properties of high-density polyethylenebonded wood veneer composites[J].Journal of Wood Science,2016:1-9.
[9]Zhang T T,Tu D,Peng C,et al.Effects of Heat Treatment on PhysicalMechanical Properties of Eucalyptus regnans[J].Bioresources,2015,10(2).
[10]Kalagar M,Khademieslam H,Bazyar B,et al.Morphology and mechanical properties of alkalitreated rice straw flour-polypropylene composites[J].Bioresources,2011,6(4):4238-4246.
[11]Song W,Zhao F,Yu X,et al.Interfacial Characterization and Optimal Preparation of Novel Bamboo Plastic Composite Engineering Materials[J].Bioresources,2015,10(3):5049-5070.
[12]Elenga R G,Djemia P,Tingaud D,et al.Effects of Alkali Treatment on the Microstructure,Composition,and Properties of the Raffia textilis Fiber[J].Bioresources,2013,8(2):2934-2949.
[13]韦中绵,蓝建华,韦鹏练,等.采伐方式对速生桉木材变形与开裂的影响[J].林产工业,2018,45(9):33-35.
[14]郝晓峰,章磊,吴义强,等.樟木汽蒸预处理工艺及功耗研究[J].林产工业,2018,45(12):66-70.
[15]王军锋,栾洁,胡婵,等.桉木多层复合穿孔吸声板工艺参数对甲醛释放量的影响[J].林产工业,2018,45(7):6-9.
[16]潘泽华,吴燕,唐沁雯,等.纳米晶体与蓄光型发光材料复合改性水性聚氨酯木器涂层的物理力学性能研究[J].家具,2018,39(3):11-15.
[17]陈琳,徐伟,陈昌华,等.家具用速生杨木无机改性及其性能对比分析[J].家具,2018,39(2):7-10.
[18]孔繁旭,邹超峰,王艳伟,等.热处理对木材化学组分及物理力学性能的影响[J].林业机械与木工设备,2019,47(1):9-16.