PTFE Molding Powder Medium Particle
Quality Specification of PTFE Molding Powder Medium Particle DF-101:
1:Smooth&Clearness: Clear7white surface
2:Tensile strength: 27Mpa Min
3:Elo. at rupture: 250%min
4:Particle size: 180±80
5:Moisture :0.04% Max
6:Package: 25Kg Per Drum
PTFE Molding Powder Medium Particle DF-101
Polytetrafluoroethylene (PTFE) is one of the most important fluorine plastics. The chemical structure of PTFE is to replace all hydrogen atoms in polyethylene with fluorine atoms.
Molecular formula: [CF2CF2] n
Clean&white surface,even texture,no foreign matters.D-57mm,no color difference for rod color cross-section
Clean&white suface,even texture, no metal residue,residue quantity(≤1mm)≤2
Stand Relative Density
Thermal Inst. Index≤
Execute According to requirment of HG/T3028-1999
can be processed to film,sheet,rob,gasket,txletree and presintered material.
1.PTFE is packed in double layer PVC bags inside and in hard circular barrels outside. On the barrel,there should be attached label and quality certificate, on which there are brand,trademark,executive criterion,type,grade,lot No. and net content,pack date,checker and packer
2.PTFE should be stored in clean dry warehouse to pervent from dust,moisture,etc,foreign matters.
3.The products are transported according to non-dangerous products.Heat,moisture,freezing and strong shock should be avoided during transportation.Over-bumpiness and compression is apt to make the resin bind together.
Production method: PTFE is produced by free radical polymerization of tetrafluoroethylene. Industrial polymerization is agitated in the presence of a large amount of water to disperse the reaction heat and to control the temperature. The polymerization is usually carried out at 4080 ℃ ~ 326kg / cm ~ 2 pressure with inorganic persulfate, organic peroxide as initiator or redox initiator. The heat release of tetrafluoroethylene per mole was 171.38 kJ. Dispersion polymerization must be supplemented with perfluorinated surfactants, such as perfluorooctanoic acid or its salts.
[PTFE Product Information Package]
Polytetrafluoroethylene [PTFE, F4] is one of the best corrosion resistant materials in the world. Therefore, it is called "the plastic king". It can be used in any kind of chemical medium for a long time. It has solved many problems in the chemical, petroleum, pharmaceutical and other fields of our country. PTFE seals, gaskets, gaskets, pads, gaskets, and tights. The sealing washer is made of suspension polymerized PTFE resin molding. PTFE has the characteristics of excellent chemical corrosion resistance and temperature resistance compared with other plastics. It has been widely used as sealing material and filling material.It has high chemical stability and excellent chemical corrosion resistance, such as strong acid resistance, strong alkali, strong oxidizer and so on, has prominent heat resistance, cold resistance and antifriction, the long-term use temperature range is -200- 250, and excellent electrical insulation, and is not affected by temperature and frequency. Besides, it has the characteristics of non contamination, no water absorption, no combustion and so on. The resin generally uses the molding, the sintering method forming process, the made rod, board or other profile can also further use the machining methods such as planing, drilling, milling and so on. The rod can be made into directional film by turning and drafting.