Detalle de las noticias

I. PLA (Polylactic Acid, Most Commonly Used)

Source: Fermentation of corn, cassava, and sugarcane starch (bio-based)

Characteristics: Transparent, good rigidity, easy to injection mold, with hardness close to traditional PP

Suitable for: Headphone shells, plug casings, wire clips, rigid packaging sheets

Degradation Conditions: Fully decomposes in 6–12 months under industrial composting at 55–60℃; degrades very slowly at room temperature

Advantages: Moderate cost, easy processing, food-grade safety

Disadvantages: Brittle, not drop-resistant, heat resistance ≤60℃, prone to cracking at low temperatures

II. PBAT (Flexible Degradable Plastic)

Source: Petroleum-based (but fully biodegradable)

Characteristics: Extremely flexible, fold-resistant, water-resistant, with a feel similar to soft PE film

Suitable for: Headphone wire jackets, soft packaging bags, earbud sleeves, buffer pads

Degradation: Degrades rapidly in soil/compost and slowly decomposes in natural room temperature environments

Advantages: Soft, tear-resistant, suitable for wires and soft packaging

Disadvantages: Poor rigidity, cannot be used for hard casings

III. PHA (Polyhydroxyalkanoates, Degradable in Seawater)

Source: Microbial fermentation (produced by bacteria feeding on sugar/fat)

Characteristics: Good toughness, water-resistant, strong biocompatibility; degradable in seawater, freshwater, and soil

Suitable for: High-end disposable headphone shells, wires, earbuds, marine-scene products

Advantages: Fully biodegradable in all environments (no need for industrial composting), safe and non-toxic

Disadvantages: Relatively high price, narrow processing temperature window

IV. PBS (Polybutylene Succinate, Heat-Resistant)

Source: Bio-fermentation or petroleum-based

Characteristics: Heat-resistant (80–100℃), moderate rigidity, oil-resistant, easy to mold

Suitable for: Plug casings, heat-resistant structural parts, packaging containers

Advantages: Better heat resistance than PLA, stable dimensions, compostable

Disadvantages: Slightly higher price than PLA, average toughness

V. Starch-Based Composite Materials (Low-Cost, Fully Degradable)

Source: Corn/potato starch blended with PLA/PBAT

Characteristics: Extremely low cost, fully biodegradable, matte finish

Suitable for: Headphone shells, packaging, liners, disposable structural parts

Advantages: The cheapest degradable solution, fully degradable, low-carbon

Disadvantages: Average strength, moisture-sensitive, ordinary surface texture

VI. Bamboo Fiber/Plant Fiber Composites (Latest "Bamboo Instead of Plastic")

Source: Bamboo powder, wood fiber, straw fiber mixed with bio-resin

Characteristics: Lightweight, good sound insulation, fully degradable, strong environmental image

Suitable for: Headphone shells, noise-canceling foam, earbuds, packaging liners

Advantages: Ultra-low carbon, compostable, soil-degradable, good sound insulation

Disadvantages: High water absorption, lower strength than pure plastic

VII. PCL (Polycaprolactone, Low-Temperature Degradable, Ultra-Soft)

Characteristics: Low melting point (around 60℃), extremely flexible, slow degradation (1–2 years)

Suitable for: Soft earbuds, buffer pads

Mainstream Degradable Materials for Disposable Aviation Headphones (Shell, Wire, Earbuds, Packaging)