The xanthate derivative method, halogenatedsolvent method and amide LiCl method for preparing chitin fiber are introduced.
介绍了制备甲壳素纤维的黄化法、含卤溶剂法和酰胺氯化锂法。
2
In order to protect PVC sleeve, printed marks and sealing material, capacitors can not be cleaned with halogenated chemicals or similar solvent such as trichlorethylene, Xylene or Acetone, etc.