| 改性脲醛树脂胶低密度稻壳-木材复合材料制造工艺的研究 |
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| 引用本文： | 罗鹏,杨传民,滕立军.改性脲醛树脂胶低密度稻壳-木材复合材料制造工艺的研究[J].林产工业,2005,32(6):19-22. |
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| 作者姓名： | 罗鹏 杨传民 滕立军 |
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| 作者单位： | 天津商学院,天津,300134 |
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| 基金项目： | 天津商学院科研培育基金(030105) |
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| 摘 要： | 采用异氰酸酯(ISO)改性的脲醛树脂胶制造低密度稻壳-木材复合材料。稻壳与木质刨花的混合比例为1:1,施胶量为7%,试验结果表明,异氰酸酯改性的脲醛树脂胶黏剂适用于低密度稻壳-木材复合材料,其物理力学性能明显优于使用传统的脲醛树脂胶黏剂。低密度稻壳-木材复合材料的物理力学性能随着改性剂异氰酸酯用量的增加而提高。密度是稻壳-木材复合材料物理力学性能的重要影响因素,低密度稻壳-木材复合材料的物理力学性能随着密度的增加而提高。在设定密度为0.45g/m~3和0.5g/cm~3的条件下,3:4的ISO/UF的稻壳-木材复合材料的物理力学性能均达到日本刨花板工业标准(JIS A5908)的要求。
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| 关 键 词： | 稻壳 低密度稻壳-木材复合材料 异氰酸酯改性的脲醛树脂 密度 |
| 文章编号： | 1001-5299(2005)06-0019-04 |
| 修稿时间： | 2005年8月5日 |
Study of Low-density Rice Husk/Wood Composites Bonded with Isocyanate Modified Urea Formaldehyde Resin |
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| LUO Peng,YANG Chuan-min,TENG Li-jun.Study of Low-density Rice Husk/Wood Composites Bonded with Isocyanate Modified Urea Formaldehyde Resin[J].China Forest Products Industry,2005,32(6):19-22. |
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| Authors: | LUO Peng YANG Chuan-min TENG Li-jun |
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| Abstract: | This work employed isocyanate (ISO)/urea formaldehyde (UF) resin system with different ratio to develop low-density rice husk/wood composite. Equal weight (1:1) mixtures of rice husk and wood particle and 7% resin content were applied for composite panel manufacture. The results showed the physical and mechanical properties of the rice husk/wood composite bonded with ISO/UF resin systems exceeded that of bonded with conventional urea formaldehyde, which indicated that ISO/UF resin systems were suitable for low-density rice husk/wood composite. The physical and mechanical properties of rice husk/wood composite improved as isocyanate contents increased. As density increased, the physical and mechanical properties of rice husk/wood composite improved, which means density influences of rice husk/wood composite strongly. Under the given densities of 0.45g/m~3 and 0.5g/cm~3, the physical and mechanical properties of rice husk/wood composite bonded with 3:4 of ISO/UF met the requirement of JIS A 5908 standard. |
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| Keywords: | Rice husk Low-density rice husk/wood composite Isocyanate modified urea formaldehyde resin systems Density |
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