This paper attempts to apply high-speed impact grinding and solvothermal process to the surface modification of microcrystalline cellulose (MCC). The impact and shear forces were used to increase the specific surface area of MCC and reduce its particle size. In a closed ethanol solvothermal environment, the solubility, dispersibility and reactivity of lauric acid were improved, which enhanced its effect on MCC. The modified MCC (LA-MCC) was used to prepare Pickering emulsion. The experimental results show that the water contact angle of modified MCC increases from 55° of original MCC to 84° of LA-MCC, showing amphiphilicity. LA-MCC is an ideal micro/nano particle for Pickering emulsion. Emulsion prepared with 1.5% (w/v) LA-MCC and 3:7 (v/v) corn oil has a Zeta potential of −58.7 mV under neutral pH of 7, showing good stability. Emulsion index only decreases by 1.66% after seven days, and the emulsion remains stable after fifty days.

本文尝试将高速冲击研磨和溶剂热工艺应用于微晶纤维素（MCC）的表面改性。冲击力和剪切力用于增加MCC的比表面积并减小其粒径。在封闭的乙醇溶剂热环境中，月桂酸的溶解性、分散性和反应性得到改善，增强了其对MCC的作用。改性MCC（LA-MCC）用于制备Pickering乳液。实验结果表明，改性MCC的水接触角从原来的55°增加到LA-MCC的84°，表现出两亲性。LA-MCC 是用于 Pickering 乳液的理想微/纳米颗粒。用 1.5% ( w / v ) LA-MCC 和 3:7 ( v/v) 玉米油在中性 pH 值为 7 时的 Zeta 电位为 -58.7 mV，显示出良好的稳定性。7天后乳液指数仅下降1.66%，50天后乳液仍保持稳定。