Preparation of wool keratin solution with ionic liquid

The dissolution of wool fiber was studied in the solvent system with 1-allyl-3-methyl imidazole chloride( AMIM [Cl ]) as main solvent and mercaptoethanol as auxiliary reagent. The orthogonal experiments result indicates that the optimal dissolving process of wool fabric was that m( wool) : m( AMIM[Cl]) : m( mercaptoethanol) = 1∶ 8. 5∶ 1,temperature at 120 ℃ and time for 7. 5 h. Under these treatment conditions, wool fibers can be completely dissolved. The polarity of AMIM [Cl] and mercaptoethanol can open the hydrogen bonds and disulfide bonds,in combination with the shearing of mechanical mixing,wool fiber can be dissolved.