牙科复合树脂中无机填料的堆积孔隙率与其粒度分布的关系  

Relationship Between Particle Size Distribution and Packing Behavior of Inorganic Fillers in Dental Composite Resins

作　　者：吕环[1] 徐恒昌[1] 王同[1] 高东红[2] 

机构地区：[1]北京医科大学口腔医学院口腔材料研究室,北京100081 [2]北京医科大学基础医学院生物数学与生物统计教研组,北京100083

出　　处：《中国粉体技术》2000年第3期26-31,共6页China Powder Science and Technology

摘　　要：通过测定松装密度和振实密度 ,研究了牙科复合树脂中无机填料的粒度分布与其堆积孔隙率之间的关系。使用Mathematica软件和SAS/STAT软件 ,用非线性回归的方法得到了无机填料的粒度分布与其堆积密度之间关系的经验公式 ,结论为无机填料 (BG)的平均粒径为 1μm 。The relationship between the packing behavior and the particle size distributions of inorganic fillers used in dental composite resins is studied in this paper,by measuring the tapped and loose densities,and an empirical equation on the abovementioned relationship through the Mathematica and the SAS/STAT softwares,using nonlinear regress method is obtained.The conclusion shows that if the average diameter of the inorganic fillers is 1μm,it can be the criterion for dental composite to choose inorganic fillers.

关 键 词：无机填料 粒度分布 堆积密度 牙科复合树脂 

分 类 号：R783.1[医药卫生—口腔医学]