文献类型：期刊文献

英文题名：Preparation of polyamide 12 powder for additive manufacturing applications via thermally induced phase separation

作者：Su, Dandan Yang, Jingkui Liu, Shan Ren, Lulu Qin, Shuhao

第一作者：Su, Dandan

通信作者：Yang, JK[1];Qin, SH[2];Qin, SH[3]

机构：[1]Natl Engn Res Ctr Compounding & Modificat Polymer, R&D Dept, Guiyang 550014, Peoples R China;[2]Guizhou Univ, Coll Mat Sci & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China;[3]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Peoples R China;[4]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China

第一机构：Natl Engn Res Ctr Compounding & Modificat Polymer, R&D Dept, Guiyang 550014, Peoples R China

通信机构：corresponding author), Natl Engn Res Ctr Compounding & Modificat Polymer, R&D Dept, Guiyang 550014, Peoples R China;corresponding author), Guizhou Univ, Coll Mat Sci & Met, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China;corresponding author), Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Peoples R China.

年份：2022

卷号：22

期号：1

起止页码：553-565

外文期刊名：E-POLYMERS

收录：;EI(收录号：20222512252550);Scopus(收录号：2-s2.0-85132233193);WOS:【SCI-EXPANDED(收录号:WOS:000808221400001)】；

基金：Authors acknowledge the financial support from Science and Technology Program of Guizhou Province (ZK [2022] General 219), the Academic Novice Cultivation and Innovative Exploration Project (GZLGXM-22) supported by Guizhou Provincial Science and Technology Department, and the National Natural Science Foundation of China (Grant No. 52163011).

语种：英文

外文关键词：polyamide 12; selective laser sintering; thermally induced phase separation; cloud point; polymer powder

摘要：Spherical polyamide 12 (PA12) powder for selective laser sintering (SLS) was prepared by thermally induced phase separation (TIPS) method. It was authenticated that the mixed solvent can regulate the liquid-liquid phase separation (LLPS) process by changing the ratio of diluent to non-diluent. The polymer droplets mainly coalesced in the solution, and then the crystal nucleus of PA12 was formed in the droplets. Finally, high crystallinity PA12 powder was precipitated. The morphology, particle size distribution, thermal properties, the change of crystal structure, and powder spreading performances of the obtained powder were characterized. The powder had a narrow particle size distribution, an average particle size of 55.2 mu m, and a broad sintering window of 29 degrees C. The results exhibited that the powders prepared by TIPS had excellent sintering properties, and TIPS method provided more choices for SLS technology.