Bio-based polyester chips are eco-friendly polymer materials made from renewable biomass resources, such as corn, cassava, or straw. By replacing traditional petroleum-based raw materials with these sustainable sources, bio-based polyester chips offer a green, biodegradable, and carbon-reducing alternative.

Key Raw Materials:

  • Bio-based Ethylene Glycol (Bio-EG)

  • Bio-based Terephthalic Acid (FDCA)

These materials undergo sustainable production processes to form high-performance polyester suitable for industries like textiles, packaging, automotive, and electronics.

Types of Bio-based Polyester Chips:

  1. Bio-based PEF Polyester:

    • 100% Plant-Derived: PEF is made from 100% renewable resources, offering superior barrier properties—its oxygen barrier is over 10 times that of traditional PET.

    • Lightweight and Strong: PEF’s mechanical properties exceed those of PET, contributing to lighter, more durable packaging solutions.

    • Environmental Benefits: Reduces carbon emissions by up to 67% compared to traditional PET. It can be recycled using existing PET systems.

    • Applications: Ideal for food and beverage packaging, where freshness and shelf life are essential.

    • Challenges: PEF is more brittle and exhibits slower crystallization rates, limiting processing efficiency. Bio-based monomer production costs (especially FDCA) remain high.

  2. Bio-EG Polyester Chips:

    • Low Carbon Footprint: Produced by polymerizing bio-based ethylene glycol (Bio-EG) with petroleum-based PTA, offering up to 20% bio-based content.

    • Familiar Processing: The properties of bio-EG polyester are very similar to traditional PET, enabling its use in existing production lines with minimal equipment modifications.

    • Applications: Commonly used in fibers for BOPET film, clothing, home textiles, and nonwoven fabrics.

    • Carbon Reduction: Bio-EG PET can reduce lifecycle carbon emissions by 15%-20% compared to conventional PET.

    • Example: Coca-Cola’s “PlantBottle” uses this bio-based polyester approach.

      Below is the Specification of the bio-EG PET Chip that our company can supply. Bio-based Carbon Content (C14) is 20%.
      The melting point can be customized to meet specific requirements.

    • NO. PROPERTY UNIT STANDARD TEST RESULT
      1 Appearance White Granule
      2 Intrinsic Viscosity dl/g 0.65±0.010 0.648
      3 Melting Point ℃ ≥255 257
      4 DEG Content % 1±0.1 1.10
      5 COOH Value mol/t ≤40 37
      6 Color Value          L ≥74 74.14
               a ≤-2 -2.56
               b ≤1.5 1.48
      7 Moisture Content % ≤0.4 0.12
      8 TiO2 Content % 0.3±0.01 0.298

Why Choose Bio-based Polyester Chips?

  • Eco-Friendly: Made from renewable resources, reducing reliance on fossil fuels.

  • Carbon Footprint Reduction: Lower CO2 emissions compared to conventional PET.

  • Sustainable Production: Produced using green chemistry processes, contributing to a circular economy.

  • High-Performance: Comparable to traditional PET in strength, durability, and processing efficiency.

  • Recyclable: Can be recycled with existing PET systems, promoting a closed-loop cycle.

Applications:

  • Textile Industry: Perfect for eco-friendly fabrics, including clothing, home textiles, and nonwoven materials.

  • Packaging: Ideal for sustainable food and beverage containers, offering a longer shelf life and improved barrier properties.

  • Automotive and Electronics: Suitable for lightweight, durable components.