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网站主页化工产品目录催化剂及助剂聚合物乙烯基吡咯烷酮-乙酸乙烯酯共聚物 Poly(1-vinylpyrrolidone-co-vinyl acetate)

Poly(1-vinylpyrrolidone-co-vinyl acetate)

PVP-VA

￥24 25kg 起订

上海更新日期：2023-11-07

上海诚裕生物科技有限公司

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产品详情:

中文名称：: Poly(1-vinylpyrrolidone-co-vinyl acetate)

英文名称：: PVP-VA

CAS号：: 25086-89-9

PVP-A Copolymer Series

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Product name:

PVP-A Copolymer Series

Chemical Name:

Copolymer of Vinylpyrrolidone and vinylacetate

CTFA Nomenclature:

PVP/VA Copolymer

CAS No.:

25089-89-9

Molecular formula:

(C₆H₉NO)_nx(C₄H₆O₂)_m(n=1.2m)

Structure:

Physical Properties:

exists as white or milky white powder,and colorless or slight yellow transparent liquid.The clarity of the aqueous product depend on the proportion of vinylpyrrolidone and vinylacetate.The aqueous solution of VA37 is cloudy,and the others are clear at room temperature.The solution is slight acidic but not electrolytic.

Specification:
Cosmetic Grade:

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Items

NVP/VA

K value

Vinylpyrrol idone%

Moisture %

Solid %

PH(5% in water)

Heavy metal of lead (ppm)

Sulfate ash %

VP/VA28W(liquid)

20/80

16-22

≤0.02

50±2

6-8

≤20

≤0.1

VP/VA37E(liquid)

30/70

24-32

≤0.02

50±2

6-8

≤20

≤0.1

VP/VA55E(liquid)

50/50

24-32

≤0.02

≤0.5

50±2

6-8

≤20

≤0.1

VP/VA55W(liquid)

50/50

22-30

≤0.02

50±2

6-8

≤20

≤0.1

VP/VA84E(liquid)

60/40

30-36

≤0.02

≤0.5

50±2

6-8

≤20

≤0.1

VP/VA84S

60/40

30-36

≤0.02

≤0.5

≥95

5-7

≤20

≤0.1

VP/VA84W(liquid)

60/40

30-36

≤0.02

50±2

6-8

≤20

≤0.1

VP/VA73E(liquid)

70/30

30-38

≤0.02

≤0.5

50±2

6-8

≤20

≤0.1

VP/VA73W(liquid)

70/30

24-32

≤0.02

50±2

6-8

≤20

≤0.1

Pharmaceutic Grade(USP26/USP30/EP5.0):

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Items

K value

saponification Vali

Vinylpyrrolidone %

Loss on dry %

Sulfate ash %

VA64(powder)

26-34

230-274

≤0.01

≤5.0

≤0.1

Heavy metal ppm

Nitrogen %

Aldehydes ppm

Peroxide ppm

Hydrazine ppm

Impurity A (a-pyrrolidone)%

≤20ppm

7.0-8.0

≤500

≤400

≤1

≤0.5

Application:

PVP/VA series products play a good role as firm-forming and hair-fixing agent.It's hygroscopicicy decrease with increase in the proportion of vinylacetate in the molecular.This property is extremely used for PVP/VA as hair sprays and hair-set lotion.If used with PVPK30.the effect would be enbanced.

Other Utility:

.Remoistenable adhesive and other adhesives for paper.
.Viscosity-enhancing agent and protecting colloid for printing ink .
.Emulsing agent and protecting colloid for plant-protecting chemicals and other dispcrsing systems.
.Binder in coating.
.Stabilizer,levelling agent,color stabilizer in printing and dyeing industry.