Dow Surlyn® 9720 Ionomer Resin, Zinc

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Dow Surlyn® 9720 Ionomer Resin, Zinc
Categories:	Polymer; Thermoplastic; Ionomer; Ionomer, Molded
Material Notes:	Surlyn® 9720 thermoplastic resin is an advanced ethylene/methacrylic acid (E/MAA) copolymer, in which the MAA acid groups have been partially neutralized with zinc ions. The amount of MAA and neutralization levels for this grade are optimized to deliver low temperature toughness, plus abrasion resistance and stiffness. For wire and cable applications, this grade contains an antioxidant and meets Mil Spec P46124 MR, Type V, Class I requirements. The resin can be injection or blow molded, and is processable by extrusion into sheets or shapes. Data provided by the manufacturer. This former DuPont product line is now a Dow product line.
Key Words:	Ethylene/Methacrylic Acid (E/MAA) Copolymer
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Physical Properties	Original Value	Comments

Density	0.960 g/cc	ASTM D792
Melt Flow	1.0 g/10 min @Load 2.16 kg, Temperature 190 °C	condition E; ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore D	61	ASTM D2240
Tensile Strength, Ultimate	30.3 MPa	ASTM D638
Tensile Strength, Yield	11.7 MPa	50 mm/min cross speed; ASTM D638
Elongation at Break	440 %	ASTM D638
Flexural Modulus	0.250 GPa	ASTM D790
Izod Impact, Notched	NB	ASTM D256
Tensile Impact Strength	1260 kJ/m²	ASTM D1822S
Tear Strength	102 kN/m	Die C; ASTM D624
Abrasion	410	NBS Index; ASTM D1630

Thermal Properties	Original Value	Comments
CTE, linear	160 µm/m-°C @Temperature -20.0 - 32.0 °C	ASTM D696
Thermal Conductivity	0.250 W/m-K
Melting Point	92.0 °C	DTA
Deflection Temperature at 0.46 MPa (66 psi)	43.0 °C	ASTM D648
Vicat Softening Point	71.0 °C	Rate B, ASTM D1525-70
Brittleness Temperature	-110 °C	ASTM D746
Flame Spread	25.4 mm/min	ASTM D635

Optical Properties	Original Value	Comments
Haze	12 % @Thickness 6.35 mm	ASTM D1003A
Gloss	25 %	20° per ASTM D523-6

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PDU418 / 33069

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