GEHR Plastics ECOGEHR® PLA-L Polylactic Acid

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GEHR Plastics ECOGEHR® PLA-L Polylactic Acid (discontinued **)
Categories:	Polymer; Renewable/Recycled Polymer; Thermoplastic; Polylactic Acid (PLA) Biopolymer
Material Notes:	PLA-L is a blend of polylactide, some lignin, natural fatty acids and waxes. It combines good mechanical properties comparable with ABS, high rigidity, a tensile module of elasticity of up to 397 kpsi, good impact strength down to -22°F, good resistance to polar solvents, good thermal insulation and is approved for use with foodstuffs and toys. Information provided by GEHR Plastics, Inc.
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Physical Properties	Original Value	Comments

Specific Gravity	1.25 g/cc	ISO 1183
Water Absorption at Saturation	0.50 %	ISO 62

Mechanical Properties	Original Value	Comments
Hardness, Shore D	75	DIN 53505
Ball Indentation Hardness	105 MPa	ISO 2039
Tensile Strength at Break	22.8 MPa	ISO 527
Tensile Strength, Yield	51.0 MPa	ISO 527
Elongation at Break	11.8 %	ISO 527
Elongation at Yield	2.5 %	ISO 527
Modulus of Elasticity	2.70 GPa	ISO 527
Flexural Strength	70.0 MPa	ISO 178
Charpy Impact Unnotched	58.0 kJ/m²	ISO 179
Charpy Impact, Notched	6.80 kJ/m²	ISO 179

Thermal Properties	Original Value	Comments
CTE, linear	120 µm/m-°C	DIN 53752
Thermal Conductivity	0.170 W/m-K @Temperature 20.0 °C
Maximum Service Temperature, Air	60.0 °C
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	ISO 75
Vicat Softening Point	58.0 °C	VST/A/50; ISO 306

Descriptive Properties
Bondability	yes
Industrially Biodegradable	Yes
Renewable Content (%)	80

**
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PGEHR041 / 122024

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