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一种含硫酸钡常压阳离子可染共聚醚酯的制备方法一种含硫酸钡常压阳离子可染共聚醚酯的制备方法,是用粒径为10～100nm的硫酸钡溶胶作为成孔剂材料。硫酸钡溶胶先分散于液态聚乙二醇中,尔后投入到缩聚釜中参与缩聚
Preparation method of barium sulphate atmospheric cationic dyeable copolyetherester A method for preparing barium sulphate atmospheric cationic dyeable copolyetherester is to use barium sulfate sol with particle size of 10-100nm as pore former material . Barium sulfate sol first dispersed in liquid polyethylene glycol, and then into the polycondensation reactor involved in polycondensation