Abstract: Disclosed is an ultrafine abrasive biopolymer soft polishing film having a base material, the base material including a high polymer base material formed by crosslinking, solidifying and drying a uniform mixture that include from 0.1-10 wt % of an ultrafine abrasive that is chemically coated with a coupling agent to provide a surface-modified ultrafine abrasive; from 5-15 wt % of a chemical additive for controlling dryness; and from 1-10 wt % of a biopolymer sol, wherein the coupling agent improves dispersion and holding of the surface-modified ultrafine abrasive in the high polymer base material, and a method of making the same.

Abstract: A superfine abrasive biomacromolecule flexible polishing film and a preparation method therefor, include a substrate of the polishing film made of a degradable biomacromolecule material, the mechanical performance of the polishing film is enhanced by means of selected filling agents, water carrying agents, pore forming agents and other drying control chemical additives, and superfine abrasives can be evenly dispersed and effectively held in the polishing film by using a coupling agent surface chemical modification method.