Dow Engage® ENX 7458.00 Ethylene-Butene Copolymer

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Dow Engage® ENX 7458.00 Ethylene-Butene Copolymer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	Description: ENX 7458.00 is a unique broader molecular weight distribution ethylene-butene copolymer that offers excellent flow and impact properties and is ideally suited for plastics modification. Its improved dispersion characteristics make possible the development of high-flow TPO compounds for larger and/or thin walled applications. The polymer has very low crystallinity and is available as surface modified pellets for ease in handling and mixing. Information provided by manufacturer.
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Physical Properties	Original Value	Comments

Density	0.863 g/cc	ASTM D792
Viscosity	1.11e+6 cP @Shear Rate 100 1/s, Temperature 190 °C	100 rad/sec; ARES Rheometer
	2.36e+6 cP @Shear Rate 10 1/s, Temperature 190 °C	10 rad/sec; ARES Rheometer
	3.35e+6 cP @Shear Rate 1.58 1/s, Temperature 190 °C	1.58 rad/sec; ARES Rheometer
	4.14e+6 cP @Shear Rate 0.1 1/s, Temperature 190 °C	0.1 rad/sec; ARES Rheometer
Melt Index of Compound	2.5 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM D1238
Crystallinity	4.3 %	25°C; DuPont Test
	12 %	Total; DuPont Test

Mechanical Properties	Original Value	Comments
Hardness, Shore A	50	10 sec; ASTM D2240
Tensile Strength, Ultimate	2.00 MPa	508 mm/min; ASTM D638
Elongation at Break	940 %	508 mm/min; ASTM D638
2% Secant Modulus	0.00530 GPa	ASTM D790

Thermal Properties	Original Value	Comments
Melting Point	37.0 °C	DSC, 10°C/min (peak); DuPont Test
Crystallization Temperature	17.0 °C	DSC, 10°C/min (peak); DuPont Test
Glass Transition Temp, Tg	-58.0 °C	DSC, 10°C/min (inf); DuPont Test

Descriptive Properties
Molecular Weight Distribution	Medium	GPC

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PDVE54 / 34115

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