摘要
利用日本理学公司DMAX/3C X 射线衍射仪,对不同原料配方、孔径的微孔膜蒸发过程进行了X 射线衍射扫描,也对一些成品膜如聚酰胺、聚砜(中空纤维膜、平面膜)、CN-CA 微孔膜做了X 射线衍射扫描。结果发现:膜蒸发过程中无晶粒出现,均为无定形体,成品膜中也没有任何晶粒出现,也应视为无定形体。可见蒸发凝胶时出现有形状的雪花状花纹因分子排列无序,仍应视为无定形体,但是否有微晶化倾向,有待研究。
In this paper,some membranes with different material prescriptions
and pore sizes and their evaporating process were undergone X-ray diffra-
ction scanning with a diffractor made by Lisho Co.,Japan.The membranes
were made by polysulfone (hollow fiber or plane membrane),polyamide,CA-
CN.It was found that there was no crystal grain in the evaporating proc-
ess,i.e.,they were all amorphous,so the snow flakes in the membrane
evapotating process were not crystalline.But it still needs farther study
whether there are some tiny crystal grains or not.
出处
《水处理技术》
CAS
CSCD
北大核心
1991年第5期304-307,共4页
Technology of Water Treatment
关键词
膜
蒸发
X射线
衍射
X-ray
diffraction
membranes
evaporating process
