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A single lactic acid molecule has hydroxyl a group and acarboxyl group, lactic acid molecules, dehydrated -OH and other -COOH molecules , dehydrated –COOH, other -OH molecules, and together can form polymer. Polylactic acid is also known as polylactide, which belongs to polyester family. Polylactic acid is a polymer formed by polymerizing lactic acid as main raw material, which is sufficient and can be regenerated. Polylactic acid production doesn’t have environmental pollution, and the product can be biodegradable to achieve recycle in nature. It is an ideal green polymer material.

Performance index

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(190℃ 2.16kg)

g/10min

1~30

Glass Transition Temperature

58~60

Melting Point

~160

Tensile Strength at Break

MPa

~50

Tensile Modulus

GPa

3.5~6.0

Impact Strength

J/m

10~13

 
 
 
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