| About |
|---|
| UNIPET PET from Nytef Plastics is a semicrystalline polyester terephthalate (PET) polymer that exhibits excellent strength, rigidity, and machinability. Additionally, this material offers dimensional stability and wear resistance that meets or exceeds that of nylon or acetal. Due to it’s superior chemical resistance and food contact approvals, UNIPET PET stock shapes are the preferred material for components in food processing applications such as pistons, valves, feed screws, and food product forming and extrusion dies. Additionally, the low moisture absorption and low rate of thermal expansion offered by UNIPET makes it ideal for demanding applications that require close tolerance, precisely machined component parts. UNIPET PET machines easily and is offered by Nytef Plastics in a complete range of extruded rod and heavy gauge plate sizes. UNIPET PET ATTRIBUTES 230°F continuous use temperature High strength and stiffness Superior wear resistance Chemically resistant to chlorine and caustic/acidic cleaning agents Improved UV resistance compared to acetal or nylon Very low moisture absorption Easily machined and fabricated FDA, USDA, and 3-A Dairy Compliant Very high “Value to Cost” ratio TYPICAL INDUSTRIES Food and dairy processing Material handling equipment Fluid handling Electronics manufacturing Automotive APPLICATIONS Pistons Valves Manifolds Food product forming dies Timing screws Scraper blades&& |
| Product Description | |
|---|---|
| Generic | PET |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Weather resistance is good,Good Dimensional Stability,Machinable,Food contact compliance,Acidproof,Good wear resistance,Solvent resistance,High crystallization,Low moisture absorption,Chlorine-resistant,HB |
| Availabilitys | North America,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.34 | g/cm³ | ASTM D792 |
| Water absorption rate | ASTM D570 | ||
| 24hr | 0.10 | % | ASTM D570 |
| saturated | 0.90 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 32 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 87.8 | ℃ | ASTM D648 |
| Continuous use temperature | 110 | ℃ | UL 746 |
| Melting peak temperature | 255 | ℃ | ASTM D3418 |
| Linear coefficient of thermal expansion | |||
| MD | 6.5E-5 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | > 1.0E+14 | ohms·cm | ASTM D257 |
| Dielectric strength | 18 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 60 Hz | 3.40 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 2.0E-3 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 125 | ASTM D785 | |
| Tensile modulus | 3240 | MPa | ASTM D638 |
| tensile strength | |||
| yield | 84.1 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 25 | % | ASTM D638 |
| Bending modulus | 3380 | MPa | ASTM D790 |
| bending strength | 121 | MPa | ASTM D790 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A (Short-Time) |
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