群青粒子的微胶囊化机理及其表面分维

摘要本文研究了油包水（Ｗ／Ｏ）乳液中群青粒子微胶囊化的机理，并探讨了粒子表面分形维数与其表面形貌的关系。结果表明，在Ｗ／Ｏ乳液中群青粒子进入乳液的液珠内形成“微型反应器”，使微胶囊化反应在液珠内的群青粒子表面进行，形成硅胶囊膜，有效地提高了群青的耐酸性；粒子的表面分维可量化表征粒子的表面形貌，群青粒子表面分形维数的大小可用于说明群青耐酸性的强弱

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	杨桂琴
	严乐美
	张万东
	崔建中
	郭从容
	王雪松

关键词：群青微胶囊化表面形貌分形

Abstract： In this paper,microencapsulation mechanism of ultramarine particles in W/O emulsion was investigated.We made an approach to the relationship between surface fractal dimensionality(D) and surface shape of particles.The results show:In W/O emulsion, ultramarine particles get into aqueous beads of emulsion , forming “microreactor”. The reaction of microencapsulation takes place on the surface of particles in beads of W/O emulsion, which forms membrane of silicagel capsule,and the acid-resistance of ultramarine can be effectively improved. Shape of particle surface can be quantitatively characterized by surface fractal dimensionality.Value D may be used for explaining acid-reistance of ultramarine.

Keywords： ultramarine microencapsulation surface shape fractal

Received 1997-01-15;

引用本文:

杨桂琴,严乐美,张万东,崔建中,郭从容,王雪松.群青粒子的微胶囊化机理及其表面分维[J]. 化学工业与工程, 1997,14(1): 22-26

Yang Guiqin Yan Lemei Zhang Wandong Cui Jianzhong Guo Congrong Wang Xuesong .Mechanism of Microencapsulation of Ultramarine Particle and Surface Fractal Dimensionality[J]. Chemcial Industry and Engineering, 1997,14(1): 22-26