Polyvinyl alcohol(PVA)
1,other name: vinylalcohol polymer, poval
2, CAS No.:9002-89-5
3,Molecular formula: [C2H4O]n
4,Chemicals and physicals properties
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Other name
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vinylalcohol polymer,poval
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CAS No.
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9002-89-5
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Molecular formula
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[C2H4O]n
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Appearance
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white flakes,floccus or powder solid,odourless
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Relative density(25°C/4°C)
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1.27-1.31(solid), 1.02(10% solution)
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Glass state temperature
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75-85°C
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Refractive index
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1.49-1.52
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Thermal conductivity
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0.2w/(m·K)
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Specific heat
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1-5kJ/(kg·K)
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Resistivity
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(3.1~3. 8)×10Ω·cm
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Ignition temperature(°C)
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410(powder)
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Lower explosive limit(V/V)
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125(g/m3 )
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5,Spec.
PVA17-88
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ITEM
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FIRST GRADE
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QUALIFIED GRADE
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Hydrolysis,% (mol/mol)
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87-89
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86-90
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Viscosity,mPa·s
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21-25
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20-26
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volatile,%
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5.0max
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7.0max
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PH value
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5-7
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5-7
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Ash,%
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0.5max
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0.7max
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Purity,%
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93.5
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91.5min
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Applications
1,adhesive and lamination agents
2,sizing and coating for textiles and paper
3,emulsifying agent in waxes
4,cosmetic
5,stencil screens;ceramic binders
6,fabric and rubberlike products
7,protective films for metal,plastic,cloth
8,printer inks for glass and plastics
9,flexible fuel line ...etcGet Latest Price
Package:
It’s packed in the braided polypropylene bags lined with a polyethylene film.The net weight of each bag is 25kg,50kg ..And it could be packed according to the customers’ requirements.
Storage & transportation:
It should be stored in ventilation in cool, dry place, away from fire. Transportation should be gentle and should prevent damage to the packing,Any special requirement could be talked with us .