|
PVDF Copolymers
SOLEF® PVDF
- General Characteristics
- Broad range of crystallinity; 20-60%
- More flexible than homopolymers
- HFP Copolymers
- 11000 series, heterogenous HFP distribution, 10% HFP
- 20000 series, more homogenous HFP distribution,
hence lower crystallinity, 8-15% HFP
- CTFE Copolymers - 30000 series
- Strongly heterogenous copolymer
- 10, 15, and 20% CTFE
- Broad use temperature range, down to -30°C
Physical Properties
Mechanical Properties
Thermal and Surface Properties
Chemical Resistance and Solution Properties
PHYSICAL PROPERTIES
|
|
|
SOLEF PVDF
Copolymer (HFP)
|
SOLEF PVDF
Copolymer (CTFE)
|
| Property |
Method
|
Units
|
11008
|
21216
|
21508
|
31508
|
| Form |
|
|
P and G
|
P
|
P and G
|
P and G
|
| Density |
D 792
|
g/cm3
|
1.78
|
1.78
|
1.78
|
1.75
|
| Water Absorption, 24 hr @ 23°C |
D 570
|
%
|
<0.04
|
<0.04
|
<0.04
|
<0.04
|
Melt Flow Index
at 230°C |
2.16 kg
|
g/10 min
|
8
|
1.3
|
8
|
5
|
|
5.1 kg
|
g/10 min
|
24
|
|
24
|
15
|
| Molecular Weight |
GPC
|
|
|
|
|
|
| Number Average, 103 |
|
|
70
|
199
|
88
|
90
|
| Weight Average, 103 |
|
|
124
|
353
|
136
|
144
|
| Polydispersity |
|
|
1.8
|
1.8
|
1.5
|
1.6
|
MECHANICAL PROPERTIES
|
|
|
SOLEF PVDF
Copolymer (HFP)
|
SOLEF PVDF
Copolymer (CTFE)
|
| Property |
Method
|
Units
|
11008
|
21216
|
21508
|
31508
|
Tensile Strength
at Yield |
D 638*
|
psi
MPa
|
4,350-5,075
30-35
|
2,175-3,625
15-25
|
2,175-2,610
15-18
|
2,030-5,075
14-35
|
Tensile Strength
at Break |
D 638*
|
psi
MPa
|
2,900-5,800
20-40
|
3,625-6,525
25-45
|
2,900-5,800
20-40
|
2,030-4,350
14-30
|
Tensile Elongation
at Yield |
D 638*
|
%
|
10-12
|
15-18
|
12-15
|
10-12
|
Tensile Elongation
at Break |
D 638*
|
%
|
200-600
|
300-650
|
600-750
|
350-600
|
| Tensile Modulus |
D 638**
|
kpsi
MPa
|
160
1,100
|
73
500
|
52-70
360-480
|
73
500
|
| Flexural Strength |
D 790
|
kpsi
MPa
|
5.8
40
|
|
|
3
18
|
| Flexural Modulus |
D 790***
|
kpsi
MPa
|
145
1,000
|
58
400
|
52-58
358-400
|
61
425
|
| *=23°C, 50 mm/min |
**=23°C, 1 mm/min |
***=22°C, 2 mm/min |
THERMAL AND SURFACE PROPERTIES
|
|
|
SOLEF PVDF
Copolymer (HFP)
|
SOLEF PVDF
Copolymer (CTFE)
|
| Property |
Method
|
Units
|
11008
|
21216
|
21508
|
31508
|
| Melting Point |
D 3418
|
°C
|
160
|
135
|
135
|
169
|
Glass Transition
Temperature |
DMTA / DMTS
|
°C
|
-29
|
-30
|
-29
|
-28
|
Heat Deflection Temperature
at 1.8 MPa, 264 psi |
D 648
|
°C
|
52
|
39
|
40
|
36
|
|
| Surface Properties |
Contact Angle
(water) |
|
Degree
|
88
|
90
|
92
|
|
CHEMICAL RESISTANCE AND SOLUTION PROPERTIES
|
|
|
SOLEF PVDF
Copolymer (HFP)
|
SOLEF PVDF
Copolymer (CTFE)
|
| Property |
Method
|
Units
|
11008
|
21216
|
21508
|
31508
|
| Hydrolytic Stability |
Internal*
|
|
+
|
+
|
+
|
+
|
| Acids |
|
|
+
|
+
|
+
|
+
|
| Alkali |
|
|
–
|
–
|
–
|
–
|
| Aliphatic Hydrocarbons |
|
|
+
|
+
|
+
|
+
|
| Aromatic Hydrocarbons |
|
|
+ to –
|
+ to –
|
+ to –
|
+ to –
|
| Aliphatic Alcohols |
|
|
+ to –
|
+ to –
|
+ to –
|
+ to –
|
| Chlorinated Hydrocarbons |
|
|
+ to –
|
+ to –
|
+ to –
|
+ to –
|
| Dipolar Aprotic Solvents |
|
|
–
|
–
|
–
|
–
|
| Chlorine |
|
|
+
|
+
|
+
|
+
|
| Ozone |
|
|
+
|
+
|
+
|
+
|
| Sterilization by Gamma Radiation |
|
|
+
|
+
|
+
|
+
|
| Sterilization by Steam |
|
|
+
|
+
|
+
|
+
|
| |
| Solution Properties |
| Major Solvents |
|
|
Acetone
NMP,DMF,
DMAC
|
Acetone
NMP,DMF,
DMAC
|
Acetone,MEF
NMP,DMF,
DMAC
|
NMP,DMF,
DMAC
|
| Viscosity, 10% in NMP |
23°C, 50 rpm
|
cps
|
150
|
4,100
|
240
|
230
|
|
KEY
|
* These ratings give a general indication. Please ask about specific reageants |
|
+
|
The polymer is resistant. Any increase in weight is less than 2% and any decrease in weight is less than 0.3%. The tensile yield strength is at least 85% of the initial value. |
|
0
|
The use of the polymer is limited. Response does not meet above criteria. For example, weight increase might be more than 2%. However, the polymer can be used if stress is low. |
|
–
|
The polymer is not resistant. There is considerable alteration of the polymer, such as dissolution or chemical or physical degradation. |
|
