Braskem PN2021 EVA Foam Copolymer

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Braskem PN2021 EVA Foam Copolymer (discontinued **)
Categories:	Polymer; Thermoplastic; Ethylene Vinyl Acetate
Material Notes:	PN2021 is an Ethylene-Vinyl Acetate (EVA) copolymer mainly used for the production of crosslinked/expanded plates and other parts. It is a product with easy processability and high compatibility with mineral fillers and other thermoplastics and elastomers. Other important characteristics are elasticity, flexibility, excellent stress cracking resistance (ESCR), chemical resistance, and low temperature strength. The exclusive morphologic characteristics give crosslinkability. The components produced with PN2021 have the following properties: lightness, resistance to deformation, low shrink, high capacity of sticking, and retention of colors. It contains antioxidant additives. Its applications include: shoe components (soles, insoles, etc.); expanded and/or cross linked artifacts for toys, games, floats, advertising, and office materials; tubing and profiles; and polymeric blends.
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Physical Properties	Original Value	Comments

Density	0.940 g/cc	ASTM-D1505
Vinyl Acetate Content	19 %
Melt Flow	2.1 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM-D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	89	ASTM-D2240
Hardness, Shore D	38	ASTM-D2240
Tensile Strength at Break	19.0 MPa	ASTM-D638
Elongation at Break	750 %	ASTM-D638
Secant Modulus	0.0330 GPa	5%; ASTM-D638

Thermal Properties	Original Value	Comments
Melting Point	86.0 °C	ASTM-D3418
Vicat Softening Point	61.0 °C @Load 1.02 kg	ASTM-D1525

Processing Properties	Original Value	Comments
Processing Temperature	80.0 - 90.0 °C	Homogenization (Calendering)
	100 - 120 °C	Mixing (Bambury)
	160 - 175 °C	Pressing

Descriptive Properties
Pressing Pressure (kgf/cm²)	100	minimum

**
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