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PLA

Polylactic Acid

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Overview


Applications


Comparison


Chemical formula

Specific gravity

1.24

Thermal properties

65

Tg(℃)

160~

Tm(℃)

Characteristics

Biodegradability

Rigidity

Difficult to injection mold

Impact resistance

Commentary

Sugar is extracted from sugarcane, corn, sugar beets, etc., and fermented to produce lactic acid, which is polymerized to form a polymer. It is finally decomposed into water and carbon dioxide by microorganisms in nature.

Key points

  • Low decomposition performance compared to other biodegradable plastics, and almost no decomposition unless in a composting environment
  • Adjust rigidity by alloying with PBAT, and use as biodegradable mulch film for agriculture
  • Difficult to crystallization and need longer cooling temperatures in injection molding
使われ方

Agricultural mulch film

Reason for adoption

Highly permeable to moisture and acids, degrades in soil after hoeing (biodegradable)

Cutlery

Reason for adoption

Biomass, biodegradable

Fiber

Reason for adoption

Biomass, biodegradable

Source Sanzan Co.