中国塑料2018，Vol.32Issue(3)：59-64,6.DOI:10.19491/j.issn.1001-9278.2018.03.010
乙醇/水混合溶剂沉淀法制备聚酰胺6粉体及表征
Preparation and Characterization of Polyamide 6 Powders by Precipitation Method in Ethanol/Water Mixed Solvent
王娜 1赵珂 1贾红友 1于翔1
作者信息
- 1. 河南工程学院材料与化学工程学院,郑州450007
- 折叠
摘要
Abstract
Polyamide 6 powders were prepared by a precipitation method in different ethanol/water mixed solvents.Morphology,thermal properties,particle size and distribution,stacking angle and density of the resulting powders were investigated by scanning electron microscopy,X-ray diffraction,differential scanning calorimetry and laser particle size analyzer.The results indicated that the interaction between the solvent and polyamide 6 increased gradually with an increase of the volume fraction of ethanol in the mixed solvents,and there was a change in morphology of polyamide 6 powders from an irregular loose structure to the regular sphere-like one.The particle size decreased to 78.81 μm and the particle distribution became narrower.There is no change in the crystal form of polyamide 6 powders.However,the thickness of crystals increased and the melting point decreased.The stacking angle of polyamide 6 powders decreased gradually,whereas its density increased gradually.The solubility parameter of the solvents exhibited an important effect on the properties of the powders.关键词
聚酰胺6粉体/晶体/粒径/堆积角/压缩度Key words
polyamide 6 powders/crystal/particle size/stacking angle/compression degree分类
化学化工引用本文复制引用
王娜,赵珂,贾红友,于翔..乙醇/水混合溶剂沉淀法制备聚酰胺6粉体及表征[J].中国塑料,2018,32(3):59-64,6.
