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- ???? ????? ??????? ?????????? ??????? ?????? ???? ?????? ????? (GB 31573–2026)? ?????????? ?????? ??? ????? ?? ????? ????? ????????? ??? ???????? (COD) ??? ?? ???/???? ?? ??? ??? ????? ????????? ?????? ?? ???? ??????? ????? ??? ??? ????? ??????? ????? ????? ??????? ????????? ??????? ????????? ?? ?????.
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It is mainly used in the textile industry, as the raw materials of warp pulp, fabric finishing agent, vinylon fiber; interior and exterior wall paint of the building, adhesives; chemical industry use it as a polymerization emulsifier, dispersant and polyvinyl formal, acetal, butyrate aldehyde resin; paper industry use it as a paper binder; agriculture use it as soil improvers, pesticide adhesion synergist and polyvinyl alcohol film; it can also be used for daily cosmetics and high-frequency quenching agent and so on.
Polyvinyl alcohol is a hydrolysis product of polyvinyl acetate, rather than by the polymerization of monomers; the molecular backbone contains
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