High-Value Recycling of PET Scrap — BAITONG Technical Solution

As PET continues to expand across packaging, engineering plastics, films and consumer goods,

large quantities of scrap, trimming waste, regrind and off-spec materials are generated during processing.

Recycling these materials is no longer just a cost topic—it is a core strategy for sustainability and carbon reduction.

However, recycled or reprocessed PET faces several key challenges:

• Chain scission after multiple heat histories → reduced IV and melt strength;

• Yellowing and black specks due to thermal oxidation by-products;

• Slower crystallization → longer cycle times and lower productivity;

• Poor hydrolysis resistance → reduced long-term reliability;

• Mechanical property instability → inconsistent product quality.

BAITONG provides a systematic additive-based enhancement solution designed specifically for PET scrap reuse.

With powder additives and optional customized masterbatches, recycled PET can regain performance close to virgin resin,

allowing manufacturers to increase recycled content without compromising product quality.

—

1. Pain Points in Recycled PET

1) Chain scission → IV drop

Multiple heat histories cut polymer chains, reducing melt strength and mechanical properties.

2) Yellowing & defects

Oxidation generates aldehydes and carbonized residues → color shift and optical defects.

3) Slow crystallization

Irregular morphology and fewer nucleation sites slow down crystallization kinetics.

4) Hydrolysis sensitivity

More reactive end groups accelerate hydrolysis → poor durability in humid environments.

—

2. BAITONG PET Scrap Reuse Solution

1) Chain Extender BTCE‑9013

• Recovers IV by +0.15 to +0.30 dL/g;

• Significantly increases melt strength;

• Enables stable extrusion, thermoforming, and injection molding.

2) Transparent Nucleating Agent

• Increases crystallization temperature by +10–12°C;

• Accelerates crystallization by 25–40%;

• Shortens cooling and molding cycles.

3) Anti‑Hydrolysis Agent

• Captures reactive end groups;

• Improves humidity resistance and long‑term stability;

• Essential for high recycled‑content PET structural applications.

4) Toughening Additive

• Restores impact resistance (3–5× increase);

• Reduces brittleness of recycled PET.

—

3. Application Areas for Recycled PET

• PET sheet, thermoforming trays

• PET blister packaging

• PET internal parts for appliances

• GF‑PET recycled engineering compounds

• PET recycled packaging for electronics and logistics

With BAITONG’s system, manufacturers can blend 10–70% recycled PET while keeping stable, repeatable quality.

—

4. Business & Sustainability Benefits

• Reduce material cost by 10–35%;

• Increase scrap utilization efficiency 3–5×;

• Improve color stability and appearance consistency;

• Reduce defect rates and widen processing window;

• Significant ESG improvement (lower carbon footprint).

BAITONG empowers the circular use of PET materials—unlocking the full value of every kilogram of scrap.

Hydrolysis Stabilizer

Nucleating Agent

Chain Extender

Functional masterbatch

Compatibilizer

High-Value Recycling of PET Scrap — BAITONG Technical Solution