摘要
研究了帘式涂布中导杆、增稠剂、涂料固含量、颜料配比对幕帘稳定性的影响。结果表明,增加幕帘与导杆的结合力,可提高幕帘的稳定性;对于没有加入表面活性剂的涂料来说,未加聚乙烯醇(PVA)时的可操作最小流量为1.64 cm^2/s,PVA用量为1.5份时的可操作最小流量为3.07 cm^2/s;对于加入了表面活性剂的涂料来说,PVA用量为0.5份时的可操作最小流量为1.95 cm^2/s,PVA用量为1.5份时的可操作最小流量为1.55 cm^2/s;涂料固含量对幕帘稳定性影响有限;高岭土用量为20份时的可操作最小流量为1.92 cm^2/s,高岭土用量为40份时的可操作最小流量为2.24 cm^2/s。
The influences of guide rod, thickener, coatings solid content and pigments formulation of coatings on curtain stability in curtain coating were studied. The results showed that the stability of curtain could be improved by increasing the binding force between coatings and guide rod. For the coatings without suffaetant, when PVA dosage was 1.5 parts, the operational minimum flow increase from 1.64 cm2/s to 3.07 cm2/s; for coatings with surfactant, when PVA dosage increased from 0. 5 part to 1.5 parts, the operational minimum flow decreased from 1.95 cm2/s to 1.55 cm2/s. Coatings solid content had a little effects on curtain stability. When clay content increased from 20 parts to 40 parts, the operational minimum flow increased from 1.92 cm2/s to 2. 24 cm2/s.
作者
李洪才
孙军
刘金刚
王比松
LI Hong-cai SUN Jun LIU Jin-gang WANG Bi-song(China National Pulp and Paper Research Institute, Beijing, 100102 National Engineering Lab for Pulp anel Paper, Beijing, 100102)
出处
《中国造纸》
CAS
北大核心
2017年第9期1-5,共5页
China Pulp & Paper
关键词
幕帘稳定性
导杆
增稠剂
固含量
颜料配比
stability of curtain
guide rod
thickener
solid content
proportion of pigments
