The invention discloses a method for improving
dissolution efficiency of PE (
polyethylene) in methylbenzene in
microfiber production based on a biological
lipase catalysis method, which comprises the following specific operation processes: premixing
lipase powder and absolute ethyl
alcohol, performing magnetic stirring or ultrasonic treatment to form a suspension, injecting the suspension into a methylbenzene
solvent, starting an emulsification pump to prepare
enzyme-containing methylbenzene, and adding the
enzyme-containing methylbenzene into a reaction kettle; according to the method, the acting force between PE molecular chains is weakened through
enzyme catalysis nucleophilic
attack and
hydrogen-bond interaction, the
permeation efficiency of the
toluene is remarkably enhanced, meanwhile, the
crystallinity of the PE and the interfacial tension between the PE and the
toluene are reduced,
toluene wetting and capillary tube
permeation are promoted, and the
microfiber Bass is prepared. According to the invention, the
lipase is added into the PE, so that toluene directionally permeates into the PE, the molecular chain of the PE is accelerated to be completely separated from the
crystal structure, and the lipase is possibly combined with the PE through hydrophobic interaction to form an enzyme-substrate compound, so that the
dispersity is improved, and the
dissolution of the PE in toluene is accelerated. And compared with the traditional process, the production efficiency can be greatly improved, and the
energy consumption is reduced.