By being compared the adsorbent rate to tio2 , the minerals ( diatomite , sepiolite , vermiculite , grammite , kaoline , bentonite ) has selected elementarily in the paper 本文通过硅藻土、海泡石、蛭石、硅灰石、高岭石、膨润土等六种矿物对tio _ 2的吸附效果及吸附量的比较，对天然矿物进行了初步筛选。
By means of scanning electronic microscope , i have done some observation and researches on the scattering property of wollastonite in polypropylene and the cohesive property between wollastonite and polypropylene 应用扫描电子显微镜对改性硅灰石在聚丙烯中的分散性及其与聚丙烯的界面结合性进行了观察和研究。
( 2 ) considering the effect of wollastonite particle size on performances of composite material , we can find out that , with particle size smaller and smaller , the performances rise at first and then fall ( 2 )硅灰石粒径对复合材料性能的影响实验表明，随着硅灰石粒径的减小，其机械性能呈现先上伸后下降的趋势。
In the process of wollastonite fining , we can forge and then cool it to protect its crystal structure which is short acicular fiber . mechanochemical modification by jet mill is super to speedily mixed modification by stirring mix 硅灰石微粉碎过程中，为保护硅灰石的短纤维针状结构，可在粉碎前对硅灰石进行煅烧空冷处理。
3 . the mechanical performances of wollastonite / polypropylene have indicated : ( 1 ) wollastonite processed by mechanochemical modification can obviously raise mechanics performances of wollastonite / polypropylene composite material 硅灰石pp复合材料的机械力学性能表明： ( 1 )经过机械力化学改性处理的硅灰石添加到pp中，可明显改善pp的力学性能。
When sufficient wollastonite is added to ceramic material , the baking temperature can be decreased ang the baking duation greatly shortened to one rapid low temperature bake , thus saving fuel and reduing production costs 在陶瓷原料中加入适量的硅灰石，可以大幅度降低烧成温度，缩短烧成时间，实现低温快速一次烧成，大量的节约燃料，明显降低产品成本。
( 4 ) compared with other fillers , the performances of wollastonite filling composite system are super to that of calcium carbonate and talcum filling systems , and are near to that of asbestos and glass fiber filling systems ( 4 )与其它pp填充矿物相比，硅灰石填充复合体系的综合力学性能优于碳酸钙和滑石的填充体系，并可与石棉、玻璃纤维的填充体系相媲美。
( 3 ) studying the effect of wollastonite content on performances of composite material , we can find out that the optimum content of wollastonite is 30 % , with the content continues to rise , the performances fall accordingly ( 3 )硅灰石含量对复合材料性能的影响实验表明，硅灰石在pp中的最佳含量为30 ，随着硅灰石含量的继续增加，其机械力学性能随之下降。
Wollastonite is also used as : protective slag in casting ; sillicon - steel ; electrode coating ; lagging material ; ceramic moulds and bonding agent for abrasives a filling agent in paper making , the trace mineral in the production of white cement and special electric ceramics 硅灰石还是模铸硅钢的保护渣，电焊条的涂料，陶瓷铸模，生产研磨材料和靡轮黏合剂，造纸的充填剂，生产白水泥，制造特殊电气陶瓷等不可多得的矿物原料。
This paper mainly focused on the study on the preparation of and interface mechanism of wollastonite / polypropylene , a foreland problem in material science . basing on a lot of experiments , application of various related theories and modern test and analysis means , i have systematically researched the methods and technology of smashing , surface modification of wollastonite and the preparation of wollastonite / polypropylene 在大量实验的基础上，应用多学科的相关理论及现代测试技术对硅灰石粉的制备、表面改性方法及工艺、改性效果评价、改性硅灰石与聚丙烯复合材料的制备、界面微观形貌及其界面机理等进行了全面系统的分析研究，取得了较为满意的研究成果和一些新的认识。
