中文摘要：

在漆酶催化体系下,为了提高麦草纤维板的物理性能,采用单螺杆和高浓盘磨联合分离麦草纤维制取化学机械浆（CMP）是一种有效的手段。本研究探讨了制浆预处理温度在110℃、120℃、130℃,用碱量4%、6%、8%、10%时,纤维板的各项物理性性能。得出制取麦草CMP的最佳预处理条件为：用碱量6%,预处理温度120℃。热压成型后中密度纤维板的主要指标分别是：弹性模量2788.11MPa,静曲强度26.98 MPa,内结合强度0.37 MPa,24h吸水厚度膨胀率16.33%。与未经过酶处理的试样相比各物理性能均有不同程度的改善,其中内结合强度提高了48%。除了内结合强度略低于国家标准外,其他各项指标均超过现行的国家标准（GB/T 11718-2009）,为采用农作物秸秆生产绿色环保型人造板打下良好的基础。

英文摘要：

In order to improve the physical property of wheat-straw fiber board by laccase. It is an efficient method to ase the combination of single-screw extruder and high consistency refiner for separating the fibers from wheat-straw and obtain chemimecharical pulp （CMP）. The physical property of wheat-straw fiber board under pretreatment temperature of 110℃ ,120℃ ,130℃ ,NaOH charge of 4% ,6% ,8% ,10% was discussed. The optimal treatment conditions were： NaOH charge of 6% , temperature of 120℃ , Major indicators of medium density fibre board （MDF） were： modulus of elasticity （MOE）2788. llMPa, modulus of rupture （MOR） 26.98 MPa, internal bond （IB） 0.37 MPa, 24h water absorption thickness swell （TS） 16.33%. As comparing with the control sample without laccase,the physical performance is improved significantly. The IB index is increased by 48%. Most technical indexes exceed the National Standards （GB/T 11718 -2009） except the internal bond （IB） . This research will be the basis of the manufacture of development of environment-friendly fiber board from non-wood fiber resource.