PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
The difference between PTFE molded rod and push rod and the scope of application
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-11-28
Visits:
The difference between 1. PTFE molded rod and push rod
PTFE rod is divided into PTFE molded rod and PTFE push rod, the difference is mainly manifested in the difference of the production process. PTFE molded rod is made of PTFE resin at room temperature
Molded molding, and then made by sintering. The PTFE push rod is made by adding a certain amount of PTFE resin to the extrusion agent, using paste extrusion molding, and then made by high temperature sintering.
PTFE rod is a kind of unfilled PTFE suitable for processing various gaskets, seals and lubricating materials working in corrosive media, as well as electrical insulation parts used at various frequencies.
Vinyl resin by molding, or paste extrusion or plunger extrusion process molding rod.
Figure 1: PTFE rod Source: Dankai
Superiority of 2. PTFE rods
PTFE rods are used to manufacture gasket sealing and lubricating materials for working in various corrosive media and electrical insulation parts used at various frequencies. So what are the advantages of using PTFE rods?
What about some?
1. No adhesion: low surface tension, no adhesion to any substance;
2, the friction coefficient is very small, good lubrication characteristics;
3, weather resistance and temperature resistance space: long-term performance in the atmosphere unchanged, can work at a temperature of 260 ℃ to -180 ℃ for a long time;
4, non-toxic: with physiological inertia, within 280 ℃ is non-toxic harmless products;
5, corrosion resistance: strong acid, alkali, aqua regia and various organic solvents (in addition to molten metal sodium and liquid fluorine) and other various chemicals;
6, high insulation: dielectric constant and dielectric loss is very low, high voltage resistance, excellent insulation;
7, non-combustible: leave the open flame is extinguished, good flame retardant material.
PTFE rod is a kind of unfilled PTFE suitable for processing various gaskets, seals and lubricating materials working in corrosive media, as well as electrical insulation parts used at various frequencies.
Vinyl resin (can contain recycled polytetrafluoroethylene resin) by molding, paste extrusion or plunger extrusion process molding rod. The size of regular bar is mostly: diameter: 6~200mm.x 200mm/
1000mm special size can also be customized. Color: pure material is white, such as adding other formulations, such as glass fiber, graphite, carbon fiber, etc. will change its performance and color.
3. PTFE characteristics
The characteristics of PTFE bars mainly include:
The temperature range is very wide (from -200 degrees Celsius to 260 degrees Celsius).
2. It is corrosion resistant to basically all chemical substances except some fluorides and alkaline metal liquids.
3. Excellent mechanical properties including aging resistance especially for bending and swing applications.
4. Outstanding flame retardancy (in line with ASTM-D635 and D470 test procedures, it is specified as a flame retardant material in air.
5, excellent insulation properties (regardless of its frequency and temperature) water absorption rate is very low, and has a series of unique properties such as self-lubricating and non-sticky.
4. PTFE Application Range
PTFE bar application range is also very wide, mainly including:
1, can be used as anti-corrosion materials, can manufacture a variety of anti-corrosion parts, such as pipes, valves, pumps and fittings joints. Chemical equipment, can produce reactors, distillation towers and anti-corrosion equipment lining and.
Coating.
2. It can be used as self-lubricating bearing, piston ring, oil seal and sealing ring, etc. Self-lubrication can reduce machine wear and heat, reduce power consumption.
3. Used to manufacture various wires and cables, battery electrodes, battery separators, printed circuit boards, etc.
4, the use of its heat resistance, water resistance, non-toxic characteristics, can be used as a variety of medical equipment and artificial organs of the material. The former such as disinfection filters, beakers, artificial heart and lung devices, the latter such as artificial blood vessels, heart
Dirty and esophagus, etc. It has been widely used as a sealing material and a filling material.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
PTFE, material, resin, extrusion, use, characteristics, non-adhesion, weather resistance, lubrication, low friction coefficient, corrosion resistance
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