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	Metric	English	Comments

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

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	75	75	DIN 53505
Ball Indentation Hardness	105 MPa	15200 psi	ISO 2039
Tensile Strength at Break	22.8 MPa	3310 psi	ISO 527
Tensile Strength, Yield	51.0 MPa	7400 psi	ISO 527
Elongation at Break	11.8 %	11.8 %	ISO 527
Elongation at Yield	2.5 %	2.5 %	ISO 527
Modulus of Elasticity	2.70 GPa	392 ksi	ISO 527
Flexural Strength	70.0 MPa	10200 psi	ISO 178
Charpy Impact Unnotched	5.80 J/cm²	27.6 ft-lb/in²	ISO 179
Charpy Impact, Notched	0.680 J/cm²	3.24 ft-lb/in²	ISO 179

Thermal Properties	Metric	English	Comments
CTE, linear	120 µm/m-°C	66.7 µin/in-°F	DIN 53752
Thermal Conductivity	0.170 W/m-K @Temperature 20.0 °C	1.18 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Maximum Service Temperature, Air	60.0 °C	140 °F
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	122 °F	ISO 75
Vicat Softening Point	58.0 °C	136 °F	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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