中文摘要：

将改性分散后的纳米CaCO3加入到木粉和木纤维中,通过添加脲醛树脂,组胚,热压成型,制得木质基-纳米CaCO3复合材料,利用激光粒度仪、FTIR及XRD表征,并进行力学性能测试与分析。实验表明：经过改性后的纳米CaCO3粒径变小,改性剂可以成功吸附于纳米CaCO3表面,当添加纳米CaCO3质量分数为7%时,木质基复合材料力学性能提高量最大;其静曲强度、弹性模量及内结合强度分别为29.08 MPa、5 686 MPa和0.72M Pa,分别提高了31%,97%,50%。

英文摘要：

After modified and dispersed, the nano-particles, then were joined into the wood power and wood fiber, and adding urea formaldehyde resin, group of embryo, and by hot-pressing, then wood-based nano-CaCO3 composites was made out, by using laser particle size analyzer and through represented by XRD and FTIR, the mechanical properties of the composites were tested and analyzed. The results show that the size of nano CaCO3 particle after modified became smaller, the modifier were adsorbed on the surface of nano CaCO3 successfully, when the mass fraction of nano-CaCO3 after adding was 7%, the improvement of mechanical properties for wood power composite was the largest, to wood flour-nano CaCO3 composite materials, the static bending strength, the modulus of elasticity and intensity of internal bond were 29.08 MPa, 5 686 MPa and 0.72 MPa, respectively increased by 31%, 97% and 50%.