以未改性稻壳粉和丙烯酸酯改性稻壳粉填充聚乙烯制备木塑复合材料。通过接触角测定仪测定不同探测液在稻壳粉及聚乙烯表面的接触角,计算出其表面自由能,进而推导出复合材料的界面张力和粘附功。结果表明,改性后稻壳粉的表面自由降低了,复合材料的界面张力和粘附功也降低了。 Wood-plastic composites were prepared by filling polyethylene with unmodified rice hull flour and acrylate modified rice hull flour. The contact angle of different probes on the surface of rice hull flour and polyethylene was measured by the contact angle meter, and the surface free energy was calculated. Then the interfacial tension and adhesion work of the composites were deduced. The results showed that the surface of the modified rice husk powder decreased freely, and the interfacial tension and adhesion work of the composites also decreased.