| Customization: | Available |
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| Feature: | Recyclable |
| Material: | Polybutylene Terephthalate/PBT |
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item
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PBT plastic
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Place of Origin
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FUJ
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Brand Name
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KEYUAN
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Model Number
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KY-PBT
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Material
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100% Virgin PBT
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Grade
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Injection Grade. Extrusion Grade
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Color
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Customized Color
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Certificates
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ISO9001.2015
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MOQ
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25KGS
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DELIVERY TIME
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1-2 Weeks
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Packing
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25kg/kg
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Sample
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Avaiable
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Polybutylene terephthalate, the English name is polybutylene terephthalate (PBT for short), PBT is a milky white translucent to opaque, crystalline thermoplastic polyester. It has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance, and low water absorption rate of only 0.1%. It still maintains various physical properties (including electrical properties) and electrical insulation in humid environments. However, the volume resistance and dielectric loss are large. Resistant to hot water, alkalis, acids, and oils, but susceptible to corrosion by halogenated hydrocarbons, poor hydrolysis resistance, rapid crystallization at low temperatures, and good formability.
Process conditions
Drying treatment: This material is easily hydrolyzed at high temperatures, so drying before processing is very important. The recommended drying conditions in the air are 120°C for 6 to 8 hours, or 150°C for 2 to 4 hours. Humidity must be less than 0.03%. If drying with a hygroscopic dryer, the recommended conditions are 150°C, 2.5 hours.
Melting temperature: 225~275ºC, recommended temperature: 250ºC.
Mold temperature: 40~60ºC for unreinforced materials. The cooling cavity of the mold must be well designed to reduce the bending of the plastic part. The heat must be dissipated quickly and evenly. It is recommended that the diameter of the mold cooling cavity is 12mm.
Injection pressure: medium (up to 1500bar).
Injection speed: The fastest possible injection speed should be used (because PBT solidifies quickly).
Runner and gate: It is recommended to use circular runner to increase pressure transmission (empirical formula: runner diameter = plastic part thickness + 1.5mm). Various types of gates can be used. Hot runners can also be used, but care should be taken to prevent leakage and degradation of materials. The gate diameter should be between 0.8~1.0*t, where t is the thickness of the plastic part. If it is a submersible gate, the recommended minimum diameter is 0.75mm.
Safety--We have own test chart, all of our products have been rigorously tested in the factory.
Higher Quality--We have quality management system certification.
Certification--We have a professional team with technical knowledge and managerial experience. Our company has been through professional quality system certification, CE certification, SGS audit, TUV audit, so that we can guarantee the best quality of our products.
Q1. Why choose us?
We have been producing all sorts of plastics since 2003 and we offer very competitive prices for all our products.
Q2. Can I customize the product?
Absolutely. We can do the products and packages according to customers' requirements.
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