采用超声波分散法制备多壁碳纳米管增强树脂基复合材料,研究了多壁碳纳米管质量分数对树脂基复合材料力学性能的影响规律。结果表明:多壁碳纳米管的加入可有效地改善树脂基复合材料的韧性和强度,当多壁碳纳米管质量分数为0.7%时,树脂基复合材料的力学性能最佳。加入多壁碳纳米管后,树脂基复合材料的玻璃化转变温度降低,且相容性良好。 The multi-walled carbon nanotubes (MWNTs) reinforced resin matrix composites were prepared by ultrasonic dispersion method. The influence of MWCNT mass fraction on the mechanical properties of the resin matrix composites was studied. The results show that the addition of multi-walled carbon nanotubes can effectively improve the toughness and strength of resin-based composites. When the mass fraction of multi-walled carbon nanotubes is 0.7%, the mechanical properties of resin-based composites are the best. After adding multi-walled carbon nanotubes, the glass transition temperature of the resin-based composite decreases, and the compatibility is good.