Kynar Flex® 2821-00

Alternative and trade names
PVDF

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Description

Kynar Flex® resins are fluorinated thermoplastic copolymers.

Outstanding characteristics: chemical resistance, imperviousness to UV, high barrier properties, high purity, good mechanical and thermo-mechanical properties.

Kynar Flex® 2821 resin is the powder form of the Kynar Flex® 2820-20 resin. To be used as an additive in LLDPE to improve the extrusion rate.

This material data has been provided by Arkema Technical Polymers.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Value	Testing Standard	Condition	Comment
Coefficient of friction	0.33 [-] Show Supplier Material materials with Coefficient of friction of 0.33 [-]	ASTM D1894		vs Steel, Static
	0.33 [-] Show Supplier Material materials with Coefficient of friction of 0.33 [-]	ASTM D1894		vs Steel, Kinetic
Density	1.77 - 1.8 g/cm³ Show Supplier Material materials with Density of 1.77 - 1.8 g/cm³	ASTM D792
	1.77 g/cm³ Show Supplier Material materials with Density of 1.77 g/cm³	ISO 1183	dry
Limiting oxygen index	42 % Show Supplier Material materials with Limiting oxygen index of 42 %	ASTM D2863, ISO 4589-1/-2	dry
Water absorption	0.03 % Show Supplier Material materials with Water absorption of 0.03 %	Sim. to ISO 62

Mechanical

Property	Temperature	Value	Testing Standard	Condition	Comment
Compressive strength		31 - 41.4 MPa Show Supplier Material materials with Compressive strength of 31 - 41.4 MPa	ASTM D695
Elastic modulus		0.552 - 0.896 GPa Show Supplier Material materials with Elastic modulus of 0.552 - 0.896 GPa	ASTM D638
		0.7 GPa Show Supplier Material materials with Elastic modulus of 0.7 GPa	ISO 527-1/-2	dry
Elongation		50 % Show Supplier Material materials with Elongation of 50 %	ISO 527-1/-2	dry	min. \| nominal
		100 - 300 % Show Supplier Material materials with Elongation of 100 - 300 %	ASTM D638
Elongation at yield		15 % Show Supplier Material materials with Elongation at yield of 15 %	ISO 527-1/-2	dry
Flexural modulus		0.483 - 0.758 GPa Show Supplier Material materials with Flexural modulus of 0.483 - 0.758 GPa	ASTM D790
Hardness, Shore D		60 - 70 [-] Show Supplier Material materials with Hardness, Shore D of 60 - 70 [-]	ASTM D2240
Impact strength, Charpy notched		No Break at 23°C	ISO 179/1eA	dry
Impact strength, Charpy notched, ASTM	23 °C	534 - 1070 J/m Show Supplier Material materials with Impact strength, Charpy notched, ASTM of 534 - 1070 J/m	ASTM D256
Impact strength, Charpy unnotched, ASTM		No Break at 23°C	ASTM D256
Tensile strength		17.2 - 34.5 MPa Show Supplier Material materials with Tensile strength of 17.2 - 34.5 MPa	ASTM D638
Yield strength		20 - 34.5 MPa Show Supplier Material materials with Yield strength of 20 - 34.5 MPa	ASTM D638
		35 MPa Show Supplier Material materials with Yield strength of 35 MPa	ISO 527-1/-2	dry

Thermal

Property	Value	Testing Standard	Condition	Pressure	Comment
Coefficient of thermal expansion	0.000126 - 0.000185 1/K Show Supplier Material materials with Coefficient of thermal expansion of 0.000126 - 0.000185 1/K	ASTM D696
	0.00016 1/K Show Supplier Material materials with Coefficient of thermal expansion of 0.00016 1/K	ISO 11359-1/-2	dry
Glass transition temperature	-41.1 - -39.4 °C Show Supplier Material materials with Glass transition temperature of -41.1 - -39.4 °C	ASTM D7028
	-40 °C Show Supplier Material materials with Glass transition temperature of -40 °C	ISO 11357-1/-2	dry		10°C/min
Heat deflection temperature	40 - 55 °C Show Supplier Material materials with Heat deflection temperature of 40 - 55 °C	ASTM D648		2 MPa	248 °F/hr
	48 °C Show Supplier Material materials with Heat deflection temperature of 48 °C	ISO 75-1/-2	dry	2 MPa
	60 - 75 °C Show Supplier Material materials with Heat deflection temperature of 60 - 75 °C	ASTM D648		0.45 MPa	248 °F/hr
Melting point	140 - 145 °C Show Supplier Material materials with Melting point of 140 - 145 °C	ASTM D3418
	143 °C Show Supplier Material materials with Melting point of 143 °C	ISO 11357-1/-3	dry		10°C/min
Relative temperature index, electrical	130 °C Show Supplier Material materials with Relative temperature index, electrical of 130 °C	UL 746B
Relative temperature index, mechanical strength	130 °C Show Supplier Material materials with Relative temperature index, mechanical strength of 130 °C	UL 746B
Specific heat capacity	745 - 958 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 745 - 958 J/(kg·K)	DSC
Thermal conductivity	0.144 - 0.18 W/(m·K) Show Supplier Material materials with Thermal conductivity of 0.144 - 0.18 W/(m·K)	ASTM D433
Thermal decomposition in air	375 °C Show Supplier Material materials with Thermal decomposition in air of 375 °C	TGA			1% wt. loss
Thermal decomposition in nitrogen	410 °C Show Supplier Material materials with Thermal decomposition in nitrogen of 410 °C	TGA			1% wt. loss
Vicat softening temperature	76 °C Show Supplier Material materials with Vicat softening temperature of 76 °C	ISO 306			50°C/h 50N
Flammability	At thickness 0.8 mm IEC 60695-11-10: V-0 and yellow card available, 5V at thickness 1.5 mm IEC 60695-11-20: 5VB

Electrical

Property	Value	Frequency	Testing Standard	Condition
Dielectric constant	3.5 - 10.6 [-] Show Supplier Material materials with Dielectric constant of 3.5 - 10.6 [-]	1KHz	ASTM D150
	6 [-] Show Supplier Material materials with Dielectric constant of 6 [-]	1MHz	IEC 60250	dry
Dielectric strength	51.2 - 59.1 kV/mm Show Supplier Material materials with Dielectric strength of 51.2 - 59.1 kV/mm		ASTM D149
Dissipation factor	0.02 - 0.21 [-] Show Supplier Material materials with Dissipation factor of 0.02 - 0.21 [-]	100KHz	ASTM D150
	0.057 [-] Show Supplier Material materials with Dissipation factor of 0.057 [-]	100Hz	IEC 60250	dry
	0.234 [-] Show Supplier Material materials with Dissipation factor of 0.234 [-]	1MHz	IEC 60250	dry
Volume resistivity	2e+14 Ω·cm Show Supplier Material materials with Volume resistivity of 2e+14 Ω·cm		ASTM D257	65% RH
	2e+14 Ω·cm Show Supplier Material materials with Volume resistivity of 2e+14 Ω·cm		IEC 60093	dry

Optical

Property	Value	Testing Standard	Comment
Refractive index	1 [-] Show Supplier Material materials with Refractive index of 1 [-]	ASTM D542	sodium D line

Rheological Properties

Property	Value	Testing Standard	Condition	Comment
Melt mass-flow rate	1 - 8 g/10min Show Supplier Material materials with Melt mass-flow rate of 1 - 8 g/10min	ASTM D1238		230°C/5kg
Melt viscosity	1200 - 2000 Pa·s Show Supplier Material materials with Melt viscosity of 1200 - 2000 Pa·s	ASTM D3835
Melt volume-flow rate	3 cm³/10min Show Supplier Material materials with Melt volume-flow rate of 3 cm³/10min	ISO 1133	dry	230°C/5kg

Technological properties

Property
Application areas	Fluoropolymer Processing Aids,Factory Applied

Kynar Flex® 2821-00

Description

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Properties