The silk peptide based-surfactants had excellent foaming ability and foam stability. Non-ionicpolymer could affect the foaming property.
丝肽基表面活性剂具有较好的起泡和稳泡能力，高分子化合物的加入，对泡沫性能有一定的影响。
2
Polyethylene glycol 6000(PEG) is a kind of water soluble and non-ionicpolymer. lt can make protein to precipitate and has a better alternative to precipitation of protein.
Cationic dispersed rosin sizing agent (CDRS) was prepared by changing ionic characteristics and its properties were characterized. The cationic agent used was modified from a non-ionicpolymer.