Zhenjiang Chunhuan Sealing Materials Co., Ltd.
Zhenjiang Chunhuan Sealing Materials Co., Ltd(Group)
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Customized 25% Glass Fiber Filled PTFE Molded Tube with Length 300-50000mm
PTFE has the highest melting point and is capable of continued service at -180-260℃. PTFE is a melt processeble resin capable of continued service at 204℃. PTFE products such as gaskets are used as gasket and packing materials in chemical processing equipment; as electrical insulation for maximum reliability, and in bearings, seals, piston rings and other mechanical applications, especially those require anti-stick characteristics. PTFE has excellent thermal and electrical insulation properties. It has a low coefficient friction.
PTFE Tube is manufactured in two distinct ways
Extruded PTFE tube is the most popular and is relevant to smaller sizes
Moulded PTFE tube is relevant to the diameters over 100mm in size, smaller sizes are also available in extruded form.
PTFE tube has a wide range of practicable temperature from -180℃-+260℃ and a wax-like surface to which anything hardly rods.
PTFE tube has the lowest coefficient of friction of all known solid materials. It has the best electrical properties of all plastics.
Characteristics
High and low temperature resistance(-180℃-+260℃)
Corrosion resistance(strong acid, strong alkali and aqua regia etc)
Weather resistance
High insulation
High lubrication
Non adhesion
Non toxic etc
Application
Widely used in gasket, valve packing, diaphragms and mechanical seals.
Linings of pipes, valves, pumps and vessels. Chemical, machinery fields.
Electrical insulation parts.
Pump and insulation construction
Food and medical technology
Chemical engineering parts
Electrical industry
Pump housings
Shaft bearings
Valve seals
Shaft seals
PTFE filled billets in either standard or custom sizes
| Material | Color |
| PTFE+bronze | Coffee,green |
| Virgin PTFE | white |
| PTFE+carbon | black |
| PTFE+graphite | black |
| PTFE+glass fiber | White,blue |
| PTFE+polyester+Mos2+graphite | Gray black |
| PTFE+polyester | beige |
| PTFE+carbon+graphite+bronze+Mos2 | black |
| PTFE+glass+Mos2 | Gray black |
| PTFE+glass+graphite | Gray black |
Filled PTFE product
1. Carbon, graphite, glass fiber, bronze, Mos2 and other different materials can be filled.
2. Size can be made based on customers’ requirements
3. Improved compression strength, thermal conductivity and abrasion resistance
4. Application: petroleum, chemical matallurgical machinery, transparent medical food, electricity
| Properties | Standard | Unit | Result |
| Mechanical property | |||
| density | G/cm3 | 2.1-2.3 | |
| Tensile strength | D638 | Mpa | 15 |
| Ultimate elongation | % | 150 | |
| Produce max. temp | PSI | 1500-3500 | |
| Hardness | D1700 | ℃ | 385 |
| Impact strength | D256 | D | 50-60 |
| Ft./Lb./In | 3 | ||
| Melting point | ℃ | 327 | |
| Working temp | ASTM D648 | ℃ | -180-260 |
| Elongation | D638 | % | 250-350 |
| Deformation % 73 OF,1500 psi 24 hours | D621 | N/A | 4-8 |
| Deformation % 1000 OF,1500 psi 24 hours | D621 | N/A | 10-18 |
| Deformation % 2000 OF,1500 psi 24 hours | D621 | N/A | 20-52 |
PTFE filled with other materials:
| Filled materials | Common filled ratio (Quantity %) | Main performance |
| Bronze | 40,60 | Increases hardness and wear resistance; Increases dimensional stability and compressive strength; Not suitable for corrosive or electrical applications
|
| Carbon | 5,10,15 | Increases compressive strength, hardness, wear, and local properties. Good chemical resistance; improves electrical properties |
| Graphite | 5,10,15 | Improves the deformation under load; reduces initial wear; Improves thermal and electrical conductivity |
| Glass Fiber | 10,15,25 | Increases compressive strength, rigidity and wear Reduce creep and cold flow; improve dimensional stability. |
| Carbon Fiber | 10,15,25 | Increases compressive strength, hardness, wear and load properties Reduces creep and cold flow |
| POB (polyphenyl ester) | 5,10,15 | Improve the lubrication performance; enhance the mechanical strength; Increase using temperature |
| BaSO4 | 5,10,15 | Increases compressive strength, hardness and wear resistance ; reduce creep |
| SiO2 | 5,10,15 | Increases hardness and wear resistance; improve dimensional stability |
| Glass beads | 5,10,15 | Reduces creep and cold flow; lower density Increases hardness and wear resistance |