Dow Surlyn® 8660 Ionomer Resin, Sodium

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Dow Surlyn® 8660 Ionomer Resin, Sodium
Categories:	Polymer; Thermoplastic; Ionomer; Ionomer, Molded
Material Notes:	Surlyn® 8660 thermoplastic resin is an advanced ethylene/methacrylic acid (E/MAA) copolymer, in which the MAA acid groups have been partially neutralized with sodium ions. The amount of MAA and neutralization levels for this grade are optimized for ease of compounding with high loadings of various color pigments. The resin is easily injection molded, and also is used in foamed applications. It complies with the provisions of U.S. Food and Drug Administration (FDA) Title 21 Code of Regulations 177:1330 - ionomer resins. 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	0.950 g/cc	ASTM D792
Melt Flow	10 g/10 min @Load 2.16 kg, Temperature 190 °C	condition E; ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore D	62	ASTM D2240
Tensile Strength, Ultimate	23.4 MPa	ASTM D638
Tensile Strength, Yield	13.1 MPa	50 mm/min cross speed; ASTM D638
Elongation at Break	470 %	ASTM D638
Flexural Modulus	0.230 GPa	ASTM D790
Izod Impact, Notched	8.55 J/cm	ASTM D256
Tensile Impact Strength	730 kJ/m²	ASTM D1822S
Abrasion	170	NBS Index; ASTM D1630

Thermal Properties	Original Value	Comments
CTE, linear	150 µm/m-°C @Temperature -20.0 - 32.0 °C	ASTM D696
Thermal Conductivity	0.246 W/m-K
Melting Point	95.0 °C	DTA
Deflection Temperature at 0.46 MPa (66 psi)	42.0 °C	ASTM D648
Vicat Softening Point	71.0 °C	Rate B, ASTM D1525-70
Brittleness Temperature	-75.0 °C	ASTM D746
Flame Spread	25.4 mm/min	ASTM D635

Optical Properties	Original Value	Comments
Haze	11 % @Thickness 6.40 mm	ASTM D1003A

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PDU408 / 33059

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