rPET - Turning Low-Value Waste into High-Value Material

Traditional physical recycling of PET faces unstable performance, downgraded use, IV loss, yellowing and insufficient heat resistance.

rPET Physical Recycling: Turning Low-Value Waste into High-Value Material (BAITONG)

BAITONG provides a molecular-engineering-based approach combining chain extension, anti-hydrolysis and functional add-on packages.

1. Key Challenges

• Unstable IV and melt viscosity due to chain scission;

• Unable to meet high-end applications such as bottle-to-bottle;

• Yellowing, black specks and poor appearance.

2. BAITONG High-Value rPET System

1) Chain Extender BTCE-9013

• Repairs chain scission;

• Raises IV from 0.65–0.75 to 0.9–1.0 dL/g;

• Enables bottle-to-bottle, food-grade sheets and textile fibers.

2) Anti-Hydrolysis Agent

• rPET has 30–50% higher carboxyl end groups;

• Anti-hydrolysis agent reduces yellowing (YI −40%);

• Improves stability under accelerated aging.

3) Optional Functional Packages

• Nucleating agent: improves crystallization & heat resistance;

• Toughening agent: increases impact performance.

3. Advantages

• rPET ratio can reach 80–100%;

• Meets food-contact safety requirements;

• Adds 1000–2000 RMB of value per ton of rPET.

4. Applications

• Food packaging sheets

• High-performance fibers

• Premium packaging

• Industrial parts

BAITONG enables rPET to evolve from downgraded recycling to true high‑value utilization.

Hydrolysis Stabilizer