Standard Specification for Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding Extrusion and Coating Materials

ABSTRACT
This specification covers melt processable unmodified poly(vinylidene fluoride) (PVDF) molding, extrusion and coating materials. This specification covers only virgin homopolymer prepared from vinylidene fluoride supplied in form of pellet or powder and shall be free of foreign matter. Two types covered by this specification are type I PVDF fluoroplastics and type II PVDF fluoroplastics. Detailed requirements that shall conform to this specification include peak melting endotherm, specific gravity, refractive index, limiting oxygen index, flow rate, rheological properties, tensile properties, flexural properties, impact resistance, D-C resistance, dielectric strength, dielectric constant, and dissipation factor. Preparation of compression molded specimen shall be in accordance to this specification.
SCOPE
1.1 This specification covers melt processable molding and extrusion materials, as well as coating materials of poly(vinylidene fluoride) fluoroplastic, commonly abbreviated PVDF (or PVF2 in scientific literature). This specification covers thermoplastic resin materials supplied in pellet or powder form.
1.2 This specification applies only to the virgin homopolymer prepared from vinylidene fluoride, not copolymers, reinforced, filled grades or special grades with additives or treatments for modification of attributes.
1.3 The tests involved are intended to provide information for specification of unmodified PVDF homopolymer resins. It is not the purpose of this specification to provide engineering data for design purposes.
1.4 PVDF fluoroplastics melt between 156 and 180°C [312 and 356°F] and are thermally stable up to about 370°C [698°F]. (Warning—Evolution of corrosive and toxic hydrogen fluoride can occur under certain conditions.)
1.5 The values stated in SI units, as detailed in IEEE/SI-10, are to be regarded as the standard. The values given in brackets are for information only.
Note 1—PVDF exhibits polymorphism. The type and extent of crystalline structure varies with the thermomechanical history of the sample. Specimens prepared by techniques different than prescribed in this specification can have properties that vary from the values specified.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10.
Note 2—There is no equivalent ISO standard for this specification. Information in this specification is technically equivalent to related information in ISO 12086-1 and ISO 12086-2.

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Publication Date
30-Jun-2005
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ASTM D3222-05 - Standard Specification for Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding Extrusion and Coating Materials
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3222 – 05
Standard Specification for
Unmodified Poly(Vinylidene Fluoride) (PVDF) Molding
1
Extrusion and Coating Materials
This standard is issued under the fixed designation D3222; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
Information in this specification is technically equivalent to related
1. Scope*
information in ISO 12086-1 and ISO 12086-2.
1.1 This specification covers melt processable molding and
extrusion materials, as well as coating materials of poly(vi-
2. Referenced Documents
nylidene fluoride) fluoroplastic, commonly abbreviated PVDF
3
2.1 ASTM Standards:
(or PVF in scientific literature). This specification covers
2
D149 Test Method for Dielectric Breakdown Voltage and
thermoplastic resin materials supplied in pellet or powder
Dielectric Strength of Solid Electrical Insulating Materials
form.
at Commercial Power Frequencies
1.2 This specification applies only to the virgin homopoly-
D150 Test Methods for AC Loss Characteristics and Per-
mer prepared from vinylidene fluoride, not copolymers, rein-
mittivity (Dielectric Constant) of Solid Electrical Insula-
forced, filled grades or special grades with additives or
tion
treatments for modification of attributes.
D256 Test Methods for Determining the Izod Pendulum
1.3 The tests involved are intended to provide information
Impact Resistance of Plastics
for specification of unmodified PVDF homopolymer resins. It
D257 Test Methods for DC Resistance or Conductance of
is not the purpose of this specification to provide engineering
Insulating Materials
data for design purposes.
D542 Test Method for Index of Refraction of Transparent
1.4 PVDF fluoroplastics melt between 156 and 180°C (312
Organic Plastics
and356°F)andarethermallystableuptoabout370°C(698°F).
D618 Practice for Conditioning Plastics for Testing
(Warning—Evolution of corrosive and toxic hydrogen fluo-
D638 Test Method for Tensile Properties of Plastics
ride can occur under certain conditions.)
D790 Test Methods for Flexural Properties of Unreinforced
1.5 The values stated in SI units, as detailed in IEEE/ASTM
and Reinforced Plastics and Electrical Insulating Materials
S-10, are to be regarded as the standard. The values given in
D792 Test Methods for Density and Specific Gravity (Rela-
parentheses are for information only.
tive Density) of Plastics by Displacement
2
NOTE 1—PVDF exhibits polymorphism. The type and extent of D883 Terminology Relating to Plastics
crystalline structure varies with the thermomechanical history of the
D1238 Test Method for Melt Flow Rates of Thermoplastics
sample. Specimens prepared by techniques different than prescribed in
by Extrusion Plastometer
this specification can have properties that vary from the values specified.
D2863 Test Method for Measuring the Minimum Oxygen
1.6 This standard does not purport to address all of the
Concentration to Support Candle-Like Combustion of
safety concerns, if any, associated with its use. It is the
Plastics (Oxygen Index)
responsibility of the user of this standard to establish appro-
D3418 Test Method for Transition Temperatures and En-
priate safety and health practices and determine the applica-
thalpies of Fusion and Crystallization of Polymers by
bility of regulatory limitations prior to use. Specific precau-
Differential Scanning Calorimetry
tionary statements are given in Section 10.
D3835 Test Method for Determination of Properties of
Polymeric Materials by Means of a Capillary Rheometer
NOTE 2—There is no equivalent ISO standard for this specification.
D3892 Practice for Packaging/Packing of Plastics
IEEE/ASTM S-10 Use of the International System of Units
1
(SI): The Modern Metric System
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials.
Current edition approved July 1, 2005. Published July 2005. Originally approved
3
in 1973. Last previous edition approved in 1999 as D3222 - 99. DOI: 10.1520/ For referenced ASTM standards, visit the ASTM website, www.astm.org, or
D3222-05. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
Lovinger, A. J., “Poly(Vinylidene Fluoride)” Developments in Crystalline Standards volume information, refer to the standard’s Document Summary page on
Polymers, Vol 1, Chapter 5, D. C. Bassett, Ed., Applied Science, London, 1982. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
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