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首页> 外文会议>Workshop on Wood―Cement Composites in the Asia―Pacific Region, Dec 10, 2000, Canberra, Australia >Modified Formaldehyde-based Resin Adhesives for Rice Hull―Wood Particleboard
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Modified Formaldehyde-based Resin Adhesives for Rice Hull―Wood Particleboard

机译：稻壳木刨花板用改性甲醛基树脂胶粘剂

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摘要

A study was conducted to develop an effective and economical resin system to improve the physical and mechanical properties of rice hull―wood composites. Boards 0.5 inch (12.5 mm) thick were made from a mixture of rice hulls and pine particles with three main resin types: urea formaldehyde (UF), phenol formaldehyde (PF), and polyisocyanate (ISO), in various adhesive formulations. Results indicated that conventional UF and PF resins did not perform well with rice hull―wood composites. However, a modified resin system with ISO as minor component significantly improved the boards' strength properties and dimensional stability. Resin content had a significant effect on the quality of the boards, with the higher resin content resulting in stronger boards. The boards bonded with the 1%ISO / 6%UF resin system had higher internal bond strength, and attained the best dimensional stability and the highest bending strength (MOR) and stiffness (MOE).
机译：进行了一项研究，以开发一种有效且经济的树脂体系，以改善稻壳-木材复合材料的物理和机械性能。 0.5英寸（12.5毫米）厚的板是由稻壳和松木颗粒的混合物制成的，具有三种主要树脂类型：脲醛（UF），苯酚甲醛（PF）和多异氰酸酯（ISO），采用各种粘合剂配方。结果表明，常规的UF和PF树脂在稻壳-木材复合材料中的性能不佳。但是，以ISO为次要成分的改性树脂体系可以显着改善板的强度性能和尺寸稳定性。树脂含量对板的质量有显着影响，树脂含量越高，板越坚固。用1％ISO / 6％UF树脂体系粘合的木板具有更高的内部粘合强度，并具有最佳的尺寸稳定性和最高的弯曲强度（MOR）和刚度（MOE）。

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