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Polyvinyl butyral resin (PVB)

 

Standard: Q/OWAL004-1999

Quality Spec.

Item
Details
 
SDW-1
SDW-1A
SDW-1B
SDW-2A
SDW-3A
SDW-3B
SDW-6A
SD-1
SD-2
SD-3
SD-4
SD-5
SD-6
AppearanceFORM
white fine granules or powder
Volatile, % =
2.0
4.0
Ash, % =
0.08
 0.10 0.08 0.10
Purity, % =
98.0
96.0
Acid Value, =
-
 4.0 2.0 1.0
Vinyl alcohol polyvinyl butyral,% (m/m)
75-77
75-77
69-71
75-78
76-78
69-71
74-77
68-81
Vinyl alcohol,
% (m/m)
18-21
18-21
24-27
18-21
18-21
24-27
18-21
-
vinyl acetic acid
% (m/m)=
3
-
Viscosity
6% methanol solution, mPaos
2-4
4-6
4-6
5-7
9-18
5-20
60-110
-
5% n-butylalcohol solution mPaos     
12-16
20-30
20-30
27-32
45-80
60-90
240-300
-
10% butylalcohol solution, mPaos
40-70
90-150
90-150
150-175
-
-
-
-
10% ethanol solution, s
-
 =5 5-10 10-18 18-30 30-60 =60
Transparency
 430nm, % =
86
-
70
-
660nm, % =
94
-
82
-
eyeballing
colorless transparent
- colorless transparent
-

 

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