A positively charged composite NF membrane was prepared by casting quaternized chitosan solution onto PAN ultrafiltration membrane and using mixed anhydride as cross-linking reagent.
采用流延的方式,将季铵化壳聚糖溶液与聚丙烯腈超滤膜进行复合,以混酐作交联剂,制备了一种荷正电复合纳滤膜。
The relationships between the concentration of cross linking reagent in polyurethane coat, trapezoidal tearing strength and other mechanical properties of coated fabric have been studied.
探讨了聚氨酯涂层中交联剂浓度与涂层织物的梯形撕裂强力及其他机械性能之间的关系。
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