Polyvinyl alcohol (be called PVA for short) , a kind of high molecular polymer. Chemical characteristics :
CAS NO:9002-89-5
Molecular Formula:(C2H4O)n
Molecular Weight:44.0526
Description : appearance is white or slightly yellow flocculent, flake, granular or powdered solids; non-toxic, tasteless, non-polluting. Polyvinyl alcohol is a water-soluble resin having a good chemical stability, adhesion, film, insulation resistance, oil resistance, abrasion resistance, gas block, and other characteristics, with a typical chemical properties of the polyol, capable of esterification, etherification, and acetalization reaction.
polyvinyl alcohol has widely applications in different industry ,such as:
(1) Applications in the textile industry: mainly used in the yarn sizing agent, fabric finishing agent, vinylon fiber raw materials;
(2) Applications in architectural decoration industry: mainly used as Polymeric emulsifier, dispersant, and polyvinyl formaldehyde, acetaldehyde, butyral resin;
(3) Applications in timber industry and paper industry is used as the binder;
(4) polyvinyl alcohol is also used in oil exploitation cementing agent;
(5) In cosmetics, pharmaceuticals, printing, ceramics, steel, electronics, electroplating, etc. There is also a wide range of applications.
Polyvinyl alcohol packing and storage:
Packing : flocculent polyvinyl alcohol packed with colorless medium density polyethylene plastic film bags, net weight 12.5kg / bags; granular or powdered polyvinyl alcohol packed with colorless medium density polyethylene plastic film bags, high-density polyethylene plastic liner colorless, sub-NW 20.0kg / bags, 25.0kg / bags in two sizes.
Storage : Polyvinyl alcohol should be stored in a dry, well ventilated room, note moisture proof, prevent sun and rain.
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