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利用熔融法、溶液法制备聚丙烯接枝丙烯酸(PP-g-AA)、乙烯-辛烯共聚物接枝马来酸酐(POE-g-MAH)、聚丙烯接枝马来酸酐(PP-g-MAH)_3种大分子增容剂,用来改善木塑复合材料相容性问题。考察其对复合材料的力学性能、流变性能以及材料吸水性的影响。结果表明,添加PP-g-AA、POE-g-MAH和PP-g-MAH作为增容剂,木塑复合材料的性能都有所提高。其中,溶液法制得的增容剂,效果显著。当添加10%(wt,质量分数)溶液法制得的PP-g-MAH,木塑复合材料的拉伸强度为25.21MPa,冲击强度为4.014kJ/m~2,复合材料的扭矩达到5.8N·m,吸水率低至0.9%。
(PP-g-AA), ethylene-octene copolymer grafted maleic anhydride (POE-g-MAH) and polypropylene grafted maleic anhydride -MAH) _3 macromolecule compatibilizer, used to improve the compatibility of wood-plastic composite materials. The effects on the mechanical properties, rheological properties and water absorption of the composites were investigated. The results show that the addition of PP-g-AA, POE-g-MAH and PP-g-MAH as compatibilizer, wood-plastic composites have improved performance. Among them, the solution obtained compatibilizer, the effect is significant. When PP-g-MAH was added by 10% (wt, mass fraction) solution method, the tensile strength of the wood-plastic composites was 25.21 MPa, the impact strength was 4.014 kJ / m 2 and the torque of the composites reached 5.8 N · m, water absorption as low as 0.9%.