PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
What is PFA? The performance and application of PFA
Classification:
Industry dynamics
News
Author:
PFA tube little sister
Source:
Dankai
Release time:
2021-11-05
Visits:
PFA is a relatively new kind of fluorine plastic in China. Its processing conditions are relatively strict, but its performance is excellent. It is mainly used in the chemical industry with high temperature resistance and high corrosion resistance and the fluorine plastic wire and cable industry.
PFA in Teflon is a kind of Teflon fluorine resin, which is tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer, also known as soluble polytetrafluoroethylene, also known as perfluoroalkoxy resin. Now the little sister of Dan Kai Teflon tube will take you to know the performance and application of PFA:
What is 1.: Teflon PFA
PFA resins are relatively new melt-processable fluoroplastics.
PFA has a melting point of about 580F and a density of 2.13- 2.16g/cc (grams per cubic centimeter). PFA is similar to PTFE and FEP, but above 302T, the mechanical properties are slightly better than FEP, and can be used at temperatures up to 500F, and its chemical resistance is equivalent to PTFE. The product forms of PFA are granular products for molding and extrusion, powder products for rotational molding and coating, and semi-finished products are films, plates, rods and pipes. The PFA resins distributed in the U.S. market include Teflon of DUPOut, Neoflon of Daikin, Hthen of Ansimont and Hostafl of HOechst Celanese. These Dankai resins can be customized according to the raw material grades specified by customers. The use of PFA is similar to FEP.
2. PFA performance:
1. It is a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene. The melt cohesiveness is enhanced, the solution viscosity is reduced, and the performance is unchanged compared with PTFE. This kind of resin can be directly processed into products by ordinary thermoplastic molding methods.
2, long-term use temperature -80 -- 260 degrees, has excellent chemical corrosion resistance, corrosion resistance to all chemicals, friction coefficient in the lowest plastic, there are good electrical properties, its electrical insulation is not affected by temperature, "plastic king" said, fire V0 level.
3, its chemical resistance is similar to polytetrafluoroethylene, better than vinylidene fluoride.
4, its creep resistance and compression strength are better than PTFE, high tensile strength, elongation up to 100-300%. Dankai has good dielectric properties and excellent radiation resistance. Flame retardant.
5, non-toxic: with physiological inertia, can be implanted in the human body.
3. PFA Applications:
1, suitable for the production of corrosion-resistant parts, wear parts, seals, insulation parts and medical equipment parts.
2, high temperature wire, cable insulation, anti-corrosion equipment, sealing materials, pump valve bushing, and chemical containers.
Molding performance 1. Crystalline material, moisture absorption is small. It can be processed into products by common thermoplastic processing methods.
3, poor liquidity, easy to decompose, decomposition of corrosive gas. It is advisable to strictly control the molding temperature not to exceed 475 degrees, the mold should be heated to 150-200 degrees, and the resistance of the gating system to the material flow should be small.
4. Translucent pellets, injection molding, extrusion molding. The molding temperature is 350-400 degrees, and more than 475 degrees is easy to cause discoloration or bubbles. And note that demoulding will be more difficult.
5, because the molten material has a corrosive effect on the metal, long-term production, the mold needs electroplating chromium treatment.
The chemical properties of PFA, FEP and PTFE are similar, but Dankai FEP can only be used below 200 degrees, and PTFE cannot be injected.
It can be seen that PFA is a relatively new kind of fluorine plastic in China. Its processing conditions are relatively strict, but its performance is excellent. It is mainly used in the chemical industry with high temperature resistance and high corrosion resistance and the fluorine plastic wire and cable industry.
Shenzhen Dan Kai Technology Co., Ltd., specializing in FEP, PFA, PTFE, PVDF and other fluorine plastic tube rod sheet membrane products and other insulation materials research and development, production, sales and service of intelligent manufacturing enterprises.
ShenZhen DanKai Technology Co.,ltd. is an intelligent manufacturing enterprise specializing in the R & D, production, sales and service of FEP, PFA, PTFE,PVDF and other fluoroplastic tube, bar, sheet and film products as well as other insulating materials.
The company has international standards of senior R & D team and the introduction of foreign fluoroplastic products production line, some fluoroplastic products through ISO9001, SGS, FDA certification.
The main products are: ① Pipe type: Ptfe PTFE pipe, Fep pipe, Pfa pipe, Pvdf pipe; ② Heat shrinkable tube type: Ptfe heat shrinkable tube, Fep heat shrinkable tube, Pfa heat shrinkable tube, Pvdf heat shrinkable tube; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate joint film, etc. ⑤, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
Pfa,fep,ptfe, fluoroplastics, properties, processing, teflon, company, comparison
Previous Page
Previous Page
Dankai Technology
Address: Area B, 4th Floor, Building 1, North Yongfa Science and Technology Park, Yanchuan North, Chaoyang Road, Songgang Town, Bao'an District, Shenzhen, China
Tel: +86-755-29979617 23127719 23127819
E-mail: dkt@szdankai.com
Focus on us
Copyright©2024 All rights reserved of Shenzhen Dankai Technology Co., Ltd.
