The Celanex are a semi-crystalline thermoplastic polyester Ticona - trade name of poly (butylene terephthalate).
Poly (butylene terephthalate) (PBT) is formed by the polycondensation of terephthalic acid and 1,4 - butanediol. The chemical structure is as follows:

Celanex has the following advantages:
- High-strength
- Good creep resistance
- High heat distortion temperature, especially a glass fiber reinforced level
- High hardness, high rigidity
- Low coefficient of friction and low wear
- High dimensional stability (low coefficient of linear thermal expansion, low water absorption)
- Good electrical properties
- Good chemical resistance
- Good weather resistance
- Environmental stress cracking
- Easy to spray
- Flame-retardant level (UL94: V-0, some grades can reach 5VA)
- High crystallization rate and short molding cycle
Celanex various performance grades for customers to choose:
- Melt viscosity
Different melt viscosity (fluidity), and the molecular weight can be used for injection molding and extrusion molding
- Reinforcing materials such as glass fiber reinforced
Chopped glass fiber bundle to increase the rigidity and heat resistance; performance With a great change in the variation of the glass fiber content
- Filled, such as mineral fillers and glass beads
For low warpage of plastic parts, which is usually glass beads and glass fiberglass fitted together.
- Polymer modifiers
The use of appropriate modifiers, improved surface gloss, impact strength and toughness, and reduces the melting point of raw materials and warpage.