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 PVDF Homopolymer Properties



 

PVDF Homopolymers - (CH2-CF2)n

Two distinct product lines produced by two different polymerization processes.

  • HYLAR® PVDF
    • Emulsion Polymerization
    • ASTM D 3222, Type 1
    • Latex Particle Diameter < 1 µm
    • Finished by Coagulation, Drying, and Grinding
    • Powder Particle Diameter - 10 µm

  • SOLEF® PVDF
    • Suspension Polymerization
    • ASTM D 3222, Type 2
    • Suspended Particle Diameter from 20 µm to 150 µm
    • Finished by Drying and Pelletizing
    • Powder Particle Diameter - 20-150 µm
    • Narrower Molecular Weight Distribution
    • Less head-to-tail inversion in the chain

Physical Properties
Mechanical Properties
Thermal and Surface Properties
Chemical Resistance and Solution Properties

PHYSICAL PROPERTIES

SOLEF PVDF
Homopolymer

HYLAR PVDF
Homopolymer

Property

Method

Units

1015

6010

6020

301F

460

Form    

P

P and G

P

P

P and G

Density

D 792

g/cm3

1.78

1.78

1.78

1.75-1.76

1.75-1.77

Water Absorption, 24 hr @ 23°C

D 570

%

<0.04

<0.04

<0.04

0.04

0.04

Melt Flow Index
at 230°C

2.16 kg

g/10 min

 

2.0

1.3

 

 

5.1 kg

g/10 min

0.2

6

 

0.3

0.6

10 kg

g/10 min

0.7

 

 

1

2.6

Molecular Weight

GPC

 

 

 

 

 

 

Number Average, 103    

146

99

190

91

 

Weight Average, 103    

261

166

304

309

 
Polydispersity    

1.8

1.7

1.6

3.4

 

 

MECHANICAL PROPERTIES

SOLEF PVDF
Homopolymer

HYLAR PVDF
Homopolymer

Property

Method

Units

1015

6010

6020

301F

460

Tensile Strength
at Yield

D 638*

psi
MPa

7,685-8,270
53-57

7,685-8,270
53-57

7,685-8,270
53-57

6,000-7,500
41-52

6,380-7,250
44-50

Tensile Strength
at Break

D 638*

psi
MPa

5,075-7,250
35-50

5,075-7,250
35-50

3,625-7,250
25-50

3,000-4,000
21-28

5,080-6,530
35-45

Tensile Elongation
at Yield

D 638*

%

5-10

5-10

5-10

5-15

10

Tensile Elongation
at Break

D 638*

%

20-50

20-50

15-50

50-250

50-250

Tensile Modulus

D 638**

kpsi
MPa

319
2,200

348
2,400

239
1,650

180-260
1,240-1,790

189-261
1,300-1,800

Flexural Strength

D 790

kpsi
MPa

10
69

11
76

9.5
65

8-10
55-69

8.5-10.8
59-75

Flexural Modulus

D 790***

kpsi
MPa

290
2,000

305
2,100

261
1,800

200-280
1,380-1,930

165-260
1,140-1,790

*=23°C, 50 mm/min **=23°C, 1 mm/min ***=22°C, 2 mm/min

THERMAL AND SURFACE PROPERTIES

SOLEF PVDF
Homopolymer

HYLAR PVDF
Homopolymer

Property

Method

Units

1015

6010

6020

301F

460

Melting Point

D 3418

°C

173

173

171

156-160

155-160

Glass Transition
Temperature

DMTA / DMTS

°C

-30

-32

-34

-40

Heat Deflection Temperature
at 1.8 MPa, 264 psi

D 648

°C

110

110

70

60-75

80-90

Surface Properties
Contact Angle
(water)

Degree

79

91

94

 

CHEMICAL RESISTANCE AND SOLUTION PROPERTIES

SOLEF PVDF
Homopolymer

HYLAR PVDF
Homopolymer

Reagent

Method

Units

1015

6010

6020

301F

460

Hydrolytic Stability

Internal*

 

+

+

+

+

+

Acids

 

 

+

+

+

+

+

Alkali

 

 

Aliphatic Hydrocarbons

 

 

+

+

+

+

+

Aromatic Hydrocarbons

 

 

+ to –

+ to –

+ to –

+ to –

+ to –

Aliphatic Alcohols

 

 

+ to –

+ to –

+ to –

+ to –

+ to –

Chlorinated Hydrocarbons

 

 

+ to –

+ to –

+ to –

+ to –

+ to –

Dipolar Aprotic Solvents

 

 

Chlorine

 

 

+

+

+

+

+

Ozone

 

 

+

+

+

+

+

Sterilization by Gamma Radiation

 

 

+

+

+

+

+

Sterilization by Steam

 

 

+

+

+

+

+

 
Solution Properties
Major Solvents

 

 

NMP,DMF,
DMAC

NMP,DMF,
DMAC

NMP,DMF,
DMAC

NMP,DMF,
DMAC

NMP,DMF,
DMAC**

Viscosity, 10% in NMP

23°C, 50 rpm

cps

1400

330

2700

540

1000

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.

** This grade is highly branched and some insolubles will be present.

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Date of last update: 6/4/2008