| Material: | PFA/PTFE |
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| Kind: | Transparent Plastic |
| Water Absorption: | 1.5%~3.5% |
| Samples: |
A transparent color
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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About us
Fluorway Polymer Materials (Shanghai) Co., Ltd., located in Shanghai, China, is an enterprise situated within the national G60 Science and Technology Innovation Park. We specialize in the production and domestic and international sales of high-performance fluoroplastic semi-finished materials and precision processed components.
our business principle is: High quality, wonderful service and very competitive price. We always place quality to the highest level and get repeated orders from our client all the time. We have a well-organized quality control system and a professional QC team Depending on strong technical power, advanced equipment and production lines, great reserve of auxiliary equipment and scientific management, all our products are good quality ensured. As we constantly keep improving, customers from all around the world think highly of us because of our unique workmanship, fine quality. We sincerely welcome Emails and calls from home and abroad as well as those who have been supporting and helping us for long.
We believe our strength and sincerity will help us become your faithful business partner. We would like to provide you with the convenience of purchasing and visiting. We are looking forward to growing up with all our partners and building up a long-lasting and prospect future. We sincerely welcome customers and friends, new and regular, from all over the world to enter into business cooperation with us.
| What is PFA PFA, also known as soluble polytetrafluoroethylene (soluble PTFE), PFA has similar properties to PTFE and FEP. PFA is produced in order to make up for the difficulty of PTFE processing, PFA processing can be divided into: injection molding, extrusion, molding. |
PFA rod is made of imported high quality raw materials and processed by special technology. PFA rods retain most of the advantages of PTFE, while being able to undergo thermal melting due to reduced crystallinity, lower melting point and significantly reduced melt viscosity. Compared with FEP, it has superior resistance to high temperature and stress cracking. PFA rods also offer excellent flexibility and have higher mechanical strength than PTFE at high temperatures. High and low temperature resistance, long-term operating temperature range of -200ºC~ 260ºC. It has excellent chemical resistance, corrosion resistance to all chemicals, and low friction coefficient. It also has excellent electrical properties, with insulation that is not affected by temperature and excellent radiation resistance. Conforms to VO class flame retardant standard. PFA rod is made of imported PFA resin, which has excellent chemical resistance, high temperature resistance, crack resistance and good transparency. Compared to other fluoropolymer tubes, PFA has higher polymer purity and higher continuous operating temperature. |
| PFA Physical property table | |||
| physical properties | rated value | system of units | measurgin method |
| specific gravity | 2.14 | g/cm³ | ASTM D792 |
| Melt rate(372ºC/5.0kg) | 18-25 | g/10min | ASTM D1238 |
| water absorption(24hr) | 0.030 | % | ASTM D570 |
| hardnessl | 55-65 | - | ASTM D2240 |
| melting temperature | 302-310 | ºC | - |
| diameter | maximum diameter | diameter | maximum diameter |
| 5 | 6 | 55 | 56 |
| 12 | 12.7 | 60 | 61 |
| 15 | 16 | 65 | 66 |
| 20 | 22 | 70 | 71 |
| 25 | 26 | 75 | 76 |
| 30 | 31 | 80 | 81 |
| 35 | 36 | 85 | 86 |
| 40 | 41 | 90 | 91 |
| 45 | 46 | 95 | 96 |
| 50 | 51 | 100 | 101 |
| PFA Extrusion When the melting finger of PFA product is greater than 3.0g/10min, it can be processed by extrusion molding, mainly producing pipes, cable insulation layers, films, etc. The screw length to diameter ratio for PFA extrusion is generally 20:1, the extrusion temperature is usually controlled at 330~425ºC, and the speed is set at 3~50r/min. Due to the high melt viscosity of PFA products, there is a high tensile ratio during extrusion molding, and smooth extrudates can be obtained quickly. The process and equipment of PFA extrusion can be used in common with the process and equipment of polyperfluorinated ethylene (FEP), but the molding temperature needs to be further increased. There is also a critical shear rate of melt rupture for PFA, which is 50s-1 for high speed extrusion type and 3s-1 for low speed extrusion or molding type. The melt strength of PFA is higher than that of FEP, and the stretch ratio of PFA can be higher when forming thin tubes and monofilaments. |
PFA molding When the melting finger of the PFA product is in the range of 0.8~3.0g/10min, the molecular weight is relatively high, the viscosity is large, and it is not easy to flow, and it is generally suitable for processing by using the molding method. The molding temperature is 330~380ºC, the pressure is 5.0~14.0MPa, and the mold is kept at the molding temperature for 20~30min, and then the melt is slowly cooled to 200~240ºC under pressure before the mold can be released. The characteristics of high viscosity of PFA melt, low critical shear rate and high forming temperature should be taken into account when designing the mold. |
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