Polylactic acid (PLA) is a new type of biodegradable material made from starch raw materials proposed from renewable plant resources such as corn. Starch raw materials are fermented to produce lactic acid, which is then converted into polylactic acid through chemical synthesis. It has good biodegradability and can be completely degraded by microorganisms in nature after use, ultimately generating carbon dioxide and water without polluting the environment. This is very beneficial for protecting the environment and is recognized as an environmentally friendly material.
ITEM | UNIT | REFERENCE INDEX |
Appearance | - | White or yellow cylindrical granules |
Particle Diameter | mm | 2~4 |
Density | g/cm3 | 1.25±0.05 |
Monomer | % | ≤1 |
Melt Index(190ºC 2.16kg) | g/10min | 1~30 |
Glass Transition Temperature | ºC | 58~60 |
Melting Point | ºC | ~160 |
Tensile Strength at Break | MPa | ~50 |
Tensile Modulus | GPa | 3.5~6.0 |
Impact Strength | J/m | 10~13 |
Properties | Unit | Test Standard | Data |
Density | g/cm3 | ASTM D-792 | 1.22-1.23 |
Melt Index (210ºC,2.16kg) | g/10min | ASTM D-1238 | 4.12 |
Melt Temperature | ºC | DSC | 170-190 |
Vicat Point A/120 | ºC | ASTM D-648 | 55 |
Tensile Strength | MPa | ASTM D-638 | 61 |
Flexural Strength | MPa | ASTM D-790 | 73 |
Elongation Break | % | ASTM D-638 | 22 |
Water Absorption | % | ASTM D-570 | <0.6 |
Impact Strength | KJ/m2 | ASTM D-256 | 8.8 |
Printing Temperature | ºC | DSC | 200-220 |