And a small quantity of m-UFD(surface modified UFD) with 0.2% weight percentage can improve the flexural strength and hardness by 35.4% and 29.8% respectively. The m-UFD was superior to n-UFD(not surface modified UFD).

• 加入0.；2%25(质量分数)的改性纳米金刚石后；复合树脂的挠曲强度和硬度分别提高35