【摘要】 采用热水、乙酸以及亚硫酸盐3种方法进行稻草预处理,找出经济可行的稻草中纤板预处理方法。结果表明:各种预处理均可改善板的性能,其中乙酸处理效果最佳。对密度为0.83 g/cm3的稻草MDF,当乙酸加量2%、处理温度80℃、时间20 min时,除TS指标外,试板的主要力学性能均可满足GB/T 11718-1999的要求。更多还原

【Abstract】 Hot water,acetic acid and sulphite solution were used separately in pretreatments of straw particles to improve fiber yield,UF resin curing and properties of rice-straw MDF.The results indicated that the pretreatment using acetic acid was the best.The MOR,MOE and IB could be improved and meet the requirements of the Chinese National Standards for wood-based MDF in grade one.更多还原