Cellulose Acetate(CA) The first commercial membranes for reverse osmosis and ultrafiltration were made from cellulose acetate. 纤维素醋酸酯第一个商业用反渗透膜和超滤膜是由纤维素醋酸酯制成。
And a safer version, cellulose acetate, was not on the market yet when Bakelite came out. 当胶木问世时,市场上还没有出现更安全的版本,醋酸纤维素(CA)。
Coated with cellulose acetate. 用醋酸纤维素(CA)涂上一层的唱盘。
Polyamides provide slightly better pH resistance than cellulose acetate but are slightly more sensitive to chlorine. 聚酰胺比纤维素醋酸酯有略好的ph值抗性,但却对氯更为敏感。
The colonies are replica-plated onto nitrocellulose filters. Polymer Membrane Recently, polymer membranes made from polyamides and polysulfones have taken the place of cellulose acetate, at least for ultrafiltration. 将菌落影印接种在硝酸纤维素滤膜上。聚合物膜近年来,由聚酰胺和聚砜制成的聚合膜至少在超滤时已取代了纤维素醋酸酯。