纳米碳酸钙粉体性质对其悬浮体系流变性能的影响  

Effect of nano-CaCO on The Rheological Properties of Suspension System

作　　者：景亭 Jing Ting(Shanxi Lanhua Huaming Nano-material Co.,Inc,Jincheng 048002,China)

机构地区：[1]山西兰花华明纳米材料股份有限公司,山西晋城048002

出　　处：《广东化工》2020年第16期41-42,66,共3页Guangdong Chemical Industry

基　　金：晋城市科学技术项目(201917006)。

摘　　要：本文以纳米碳酸钙、氧化钙和邻苯二甲酸二辛酯(DOP)组成的悬浮体系模拟下游制品加工流变行为,纳米碳酸钙呈现立方体形貌时悬浮体屈服值最大;纳米碳酸钙平均粒径越小,粒度分布越窄,悬浮体系体系宾汉粘度越大,屈服值越大;硬脂酸钠与偶联剂LH-1、LH-2复配的表面改性剂可以降低粘度与屈服值,而与LH-3的复配可以提高粘度与屈服值。根据模拟悬浮体系的流变性能,为新产品性能的开发提供了基础数据,为下游客户对产品的使用提供选择依据。In this paper the rheological behavior of downstream products is simulated by suspension system composed of nano-CaCO3,CaO and dioctylphthalate(DOP),The results show that the yield value of the suspension is the highest when the nano calcium carbonate is cubic;The smaller the average particle size and the narrower the particle size distribution, the higher the Bingham viscosity and yield value of the suspension system;sodium benzoate and coupling agent LH-1,LH-2 complex surface modifier can reduce the viscosity and yield value, and with the LH-3 compound can improve the viscosity and yield value.According to the rheological properties of the simulated suspension system, it provides basic data for the development of new performance products and provide the basis for downstream customers to choose the products.

关 键 词：纳米碳酸钙 流变性能 粒径 粒度分布 表面改性 屈服值 

分 类 号：TQ115[化学工程—无机化工]