Industrial Products
Hybrid Ti Catalyst for PET (DH-HyTi)
A new standard for eco-friendly, high-performance polyester catalysts
FOR YOUR
DREAM
DH-HyTi is a highly active hybrid Ti catalyst applied to the polymerization of various polyester resins such as PET, PETG, PBT and PBS. It is an eco-friendly alternative to conventional heavy-metal catalysts such as antimony trioxide (Sb₂O₃).
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Features of the DH-HyTi Hybrid Ti Catalyst
- High activity at low dosage: excellent polymerization performance with only a small addition (10 ppm)
- Outstanding dispersibility: excellent mixing stability in ethylene glycol (EG) and polyester processes
- Production of high-clarity, high-gloss resins: bright, transparent PET products (b value 2, L value 89)
- Improved moisture resistance and process stability: minimizes catalyst decomposition by moisture and maintains quality during long operation
- Compatible with existing Sb-based catalysts: application flexibility and easy step-by-step transition
Applications
- Eco-friendly PET bottles and fibers
- High-clarity films and packaging
- Recycled PET processes
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PET Resin Performance (with DH-HyTi catalyst)
| Item | Quality Index |
| Intrinsic Viscosity | 0.672dl/g |
| Melting Point | 260℃ |
| Color (L/b) | 89/2 |
DH-HyTi Catalyst Comparison
| Solid | Liquid | |||||||
| company | Product A (conv. Ti) | Product S (conv. Ti) | DH-HyTi | Company D | Company E | Company J | Company S | Company C |
| Particle type | Inorganic/μm | Inorganic/μm | Hybrid/μm*nm | Organic | Organic | Organic | Organic | Ti(EG)2 |
| Addition point | No restriction | Before polycondensation | ||||||
| b value | 6 | / | 2 | 5.3 | 5.2-7.5 | / | 6.5 | 8 |
| -COOH mol/t |
/ | / | 7 | 21.6 | 22.9-24.4 | / | 23.7 | / |
| Stability | Low dispersibility | Strong against hydrolysis, excellent stability |
Prone to hydrolysis, low stability | |||||
