Overview
Granular PTFE, or Polytetrafluoroethylene, is a synthetic fluoropolymer known for its exceptional resistance to chemicals, high temperatures, and electrical insulation properties. It is widely used in industries ranging from aerospace to food processing due to its versatility and durability. PTFE was first discovered in 1938 by DuPont and has since become a critical material in various high-performance applications. The granular form is particularly useful for molding and extrusion processes, allowing for the creation of complex shapes and components.
Physical and Chemical Properties
Granular PTFE exhibits a unique combination of properties, including a low coefficient of friction, making it ideal for applications requiring smooth movement or reduced wear. Its chemical inertness allows it to resist almost all industrial chemicals, including strong acids and bases. The material maintains its mechanical properties over a wide temperature range, from -200°C to 260°C (-328°F to 500°F). Its dielectric properties also make it suitable for electrical insulation applications. However, PTFE is not resistant to radiation and can degrade under prolonged exposure.
Main Applications
Granular PTFE is commonly used in the manufacturing of seals, gaskets, and bearings, where its low friction and chemical resistance are critical. It is also used in coatings for cookware, industrial equipment, and medical devices due to its non-stick properties. In the automotive and aerospace industries, PTFE is used in components that require high thermal stability and resistance to harsh environments. Additionally, its electrical insulation properties make it valuable in the electronics industry for wire and cable insulation.
Safety and Storage
While PTFE is generally considered safe under normal conditions, overheating can release toxic fumes, including perfluoroisobutene (PFIB), which is hazardous to health. Proper ventilation and temperature control are essential when processing PTFE. Granular PTFE should be stored in a cool, dry place away from direct sunlight and moisture. It is non-reactive with most substances, but contamination should be avoided to maintain its performance characteristics. Always refer to the material safety data sheet (MSDS) for specific handling instructions.
B2B Procurement Guide
When procuring granular PTFE, it is important to specify the required purity, particle size, and thermal stability to ensure it meets the application's demands. High-purity grades are essential for medical and food-grade applications, while industrial grades may allow for some impurities. Suppliers should provide certification of analysis (CoA) to verify the material's properties. Bulk purchases typically offer cost savings, but storage conditions must be carefully managed to prevent degradation. Lead times can vary depending on the supplier and grade availability.
Related Manufacturers
- 主营：PA6、POM、PC/ABS、塑料颗粒、日本宝理pps、PBT、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、美国杜邦、德国巴斯夫、日本宝理pom、ASA、PMMA、PEEK、PCTG、PPA、PPSU、PVDF、POE、乐天PC-1100
- 主营：LCP、PA66、PSU、TPEE、PEEK、PA12、PBT/ASA、PPSU、PPS、PC、PC/ABS、ABS、润滑脂、PTFE、特富龙
- 主营：正牌料、高温特种塑胶、工程材料、橡胶原料、通用塑胶、PA66、POM、PFA、ETFE、PVDF、PBT、PC、ABS、PEEK、PTFE、FEP、PP、PC/ABS
- 主营：PP、PE、ABS、PTFE棒材原材料颗粒、POM、PC、POE、EVA、德国朗盛、美国杜邦、日本宝理pom、韩国LG、奇美abs、pom900p、工程塑料、PPO、TPU、PET
- 主营：POM塑料、PA66塑料、PA6塑料、PC塑料、PBT塑料、PC/ABS塑料、LCP塑料、PA12塑料、PPS塑料、PPO塑料、PTFE塑料、PEEK塑料、PPE塑料、PMMA塑料、ABS塑料、TPE塑料、TPV塑料、TPU塑料
- 主营：玻璃矿物、POM塑胶原料、PA66塑胶原料、LCP塑胶原料、PA12塑胶原料、PA6塑胶原料、ABS塑胶原料、PC/ABS塑胶原料、PPO塑胶原料、PMMA亚克力、PA9T工程塑料、PBT工程塑料、沙林料、PC塑料、PVA降解塑料、TPU弹性体、TPEE塑胶原料
- 主营：Pom美国杜邦、日本宝理pom、旭化成pom、Pom100p、Pom500p、Pom900p、M90-44、F20-03、ABS747、abs757、LCP、PA6T、PA9T、POE、PBT、PVDF、PETG、COC、HIPS、TPEE、TPU、TPV、日本旭化成pom、美国杜邦pom
- 主营：PA66、TPEE、玻纤增强PA66、PTFE颗粒、PA66 A3EG6、食品级PA66、耐低温PA66、pa66加纤、PA66阻燃加纤、PPSU、PPS粉、EVA粉末、PA66 FR50、PPA、EVA、PET、LCP、POM、PA6T、高温尼龙、PC ABS、PPS、PA9T、PA46、抗紫外线TPU
- 主营：改性塑料颗粒
- 主营：耐磨pom、pom代理、伊士曼、巴斯夫、聚甲醛、红外线、一诺威、高熔指、光扩散、塑胶pla、聚乙烯、铁氟龙、中石化、胺塑胶、增韧pom、尼龙-pa、旭化成、pa6韩国、氟塑胶、聚酰胺、弹性体、耐冲击、66-塑胶、聚碳酸脂、高温塑胶
- 主营：特种工程塑料、弹性体塑料、通用塑料、工程塑料、合金塑料
- 主营：沙林树脂pc2000、沙林塑胶原料9910、pfa塑料、ptfe塑胶原料、peek塑胶颗粒、cpvc塑胶、tpsiv原料、lcp特种工程塑料、pps高温材料、pvdf特氟龙塑料
- 主营：工程塑料、LCP原料、PPS原料、PA66原料
- 主营：特种工程塑胶原料、合金塑料、热塑弹性体塑胶原料、降解塑料、基础创新、杜邦、韩国LG、德国科恩创、德国朗盛、日本大金、日本帝人、瑞士EMS、日本可乐丽、法国阿科码、日本宝理、日本旭硝子、日本瑞翁、美国泰科纳、美国苏威、美国科慕、日本驻友化学、日本三菱工程、韩国工程
- 主营：PA66、PA6、PEEK、PA12、PPA、PEI、TPEE、TPE、TPU、TPV、改性尼龙、PA612、PPS、LCP、PA6T、PA46、导电防静电塑料、防静电塑料、PEI塑料、耐高温塑料、耐磨塑料、塑胶原料、PPS塑料、PEEK塑料、PA66塑料