Polyvinyl Alcohol Application

Polyvinyl Alcohol products have a wide range of uses. In the textile industry, they are mainly used as yarn pulp, fabric finishing...

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Polyvinyl Alcohol Grades

Polyvinyl Alcohol is manufactured by polymerization of vinyl acetate monomer, followed by hydrolysis of the polyvinyl acetate. HOP...

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Polyvinyl Alcohol Introduction

Polyvinyl Alcohol is a water soluble and biodegradable synthetic polymer. It is adry solid, and is available in granule and powder...

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chemicals polyvinyl alcohol 1099,0488,0588

PVA is an atactic material that exhibits crystallinity. In terms of microstructure, it is composed mainly of 1,3-diol linkages [-CH2-CH(OH)-CH2-CH(OH)-] but a few percent of 1,2-diols [-CH2-CH(OH)-CH(OH)-CH2-] occur, depending on the conditions for the polymerization of the vinyl ester precursor.

PVA for Paper Industry

PVA HWF-17 is usually used as a surface treatment agent for paper and paperboard. When higher coverage isrequired, HWF-05 or HWF-08 may be applied. A sizing solution of 2-5% is used, with a plasticizer for example glycerol, an insolubilizer for example glyoxal and defoamer added to the solution. A wax emulsion (10-50% of the weight of PVA ) may be added to prevent sticking to the dryer and staining on the calendar roll. Metallic stearates and rosins may also be applied.The applications of PVA for paper industry are listed as follows.

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