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以丙烯腈-丁二烯-苯乙烯共聚物(ABS)塑料为基体,木粉和纳米蒙脱土为填料,采用双螺杆挤出造粒后模压成型工艺制备高性能ABS木塑复合材料。研究了木粉、纳米蒙脱土、界面相容剂ABS接枝马来酸酐(ABS-g-MAH)含量等对ABS木塑复合材料力学性能的影响和SEM分析。结果表明:木粉含量为50%(wt,质量分数,下同),纳米MMT含量为10%,ABS-g-MAH含量为2%时,ABS木塑复合材料的力学性能最佳,弯曲强度达到69MPa、弯曲模量达到5900MPa和冲击强度达到17kJ/cm~2。从材料的SEM图观察到,加入木粉、纳米MMT和ABS-g-MAH后材料的界面相容性得到提高,增强了材料的力学性能。
Acrylonitrile - butadiene - styrene copolymer (ABS) plastic substrate, wood flour and nano-montmorillonite as filler, the use of twin-screw extrusion granulation molding process for the preparation of high-performance ABS wood-plastic composites. The effects of wood flour, nano-montmorillonite, ABS grafted maleic anhydride (ABS-g-MAH) on the mechanical properties of ABS wood-plastic composites were investigated by SEM. The results showed that the mechanical properties of ABS wood-plastic composites were best when the content of wood flour was 50% (wt, mass fraction), the content of MMT was 10% and the content of ABS-g-MAH was 2% Reached 69MPa, flexural modulus reached 5900MPa and impact strength reached 17kJ / cm ~ 2. From the SEM images of the material, the interfacial compatibility of the material with wood flour, nano-MMT and ABS-g-MAH is improved and the mechanical properties of the material are enhanced.