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林产化学与工业 ›› 2011, Vol. 31 ›› Issue (6): 25-28.

• 研究报告 • 上一篇    下一篇

桐马酸酐甲酯改性杨木纤维增强环氧树脂复合材料性能研究

陈健, 孔振武, 焦健, 房桂干, 吴国民, 霍淑平, 聂明才   

  1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2011-04-11 修回日期:1900-01-01 出版日期:2011-12-30 发布日期:2011-12-30
  • 通讯作者: 孔振武,研究员,博士,博士生导师,主要从事天然资源化学利用及聚合物高分子材料研究;E-mail:kongzhenwu@yahoo.com.cn。

Properties of Epoxy Resin Composites Reinforced with Poplar Wood Fiber Modified by Methyl Eleostearate Maleic Anhydride Adduct

CHEN Jian, KONG Zhen-wu, JIAO Jian, FANG Gui-gan, WU Guo-min, HUO Shu-ping, NIE Ming-cai   

  1. Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2011-04-11 Revised:1900-01-01 Online:2011-12-30 Published:2011-12-30

摘要: 以桐马酸酐甲酯改性杨木纤维(MEMA-PWF)为增强体、双酚A缩水甘油醚型环氧树脂(E51)/甲基四氢邻苯二甲酸酐(MeTHPA)为基体树脂,经热压成型制备杨木纤维增强环氧树脂复合材料。通过接触角测量、扫描电镜(SEM)分析表征了复合材料表面及断裂面结构形貌,并测试了复合材料的冲击强度、弯曲强度。实验结果表明,改性后的杨木纤维表面疏水性及其与环氧树脂基体界面相容性得到明显提高;以MEMA-PWF/环氧树脂体系制备的复合材料力学性能提高,冲击强度、弯曲强度分别达到 7.95 kJ/m2、 55.42 MPa,并具有较好的疏水性。

关键词: 桐马酸酐甲酯, 杨木纤维, 改性, 环氧树脂, 复合材料

Abstract: Fiber reinforced epoxy resin composites were prepared by compression molding based on poplar wood fiber modified by methyl eleostearate maleic anhydride adduct (MEMA-PWF) and bisphenol A epoxy resin/methyl tetrahydrophthalic anhydride (E51/MeTHPA). Surface properties and fracture morphology of the epoxy composites were characterized by a contact angle measurement and scanning electron microscopy (SEM). The impact strength and flexural strength were tested. It was shown from the results that the surface hydrophobicity of modified fiber, the compatibility between the modified fiber with epoxy matrix, and the mechanical properties of MEMA-PWF/epoxy composites were significantly improved. The impact strength and flexural strength of the composites were 7.95 kJ/m2 and 55.42 MPa, respectively. The composites had a better hydrophobic perfor- mance.

Key words: methyl eleostearate maleic anhydride adduct, poplar wood fiber, modification, epoxy resin, composite

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