The Relationship between Solid Content and Particle Size Ratio of Waterborne Polyurethane

Coatings

Zihan Zhang¹  Xuanhe Yang²  Jinghui Hou²  Chunpeng Chai²  Yifei Ma²  Muhua Huang² 

[1] Department of Senior Middle School, Beijing Haidian Foreign Language Experiment School, Beijing 100095, China;School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;

关键词: high solid content;    waterborne polyurethane;    particle size;   

DOI  :  10.3390/coatings9060401

来源: DOAJ

【 摘 要 】

A series of high solid content carboxylic acid/sulfonic acid waterborne polyurethanes was prepared by the emulsion dispersion method. The particle size and solid content were measured. By changing the particle size of the large particles to achieve different particle size ratios, high solid content waterborne polyurethanes were obtained at specific particle size ratios. When the particle size ratio was >7, 4−5 or 2−3, the aqueous polyurethane could reach a higher solid content (more than 56%). This indicated that solid content is related to particle size distribution in high solid content waterborne polyurethane. Moreover, the corresponding three-dimensional stacked models (simple cubic accumulation, face-centered cubic accumulation, cubic close packing and hexagonal closest packing) were established.

【 授权许可】

Unknown