PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
What's a PFA stick? You know what?
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-09-17
Visits:
1.What isPFAGreat?
PFAGreatAlso known as soluble PTFE, fully maintain the excellent performance of PTFE, the use of temperature-180 ∽ 260 ℃, has good mechanical and electrical insulation properties, outstanding heat resistance and low coefficient of friction, flame retardant, low smoke, weather resistance, and good thermoplastic.
The PFA bar 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 PTEF. 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.
Figure 1:PFA Bar Source: Dan Kai
2.PFAGreatexcellent characteristics
1、Appearance: uniform texture, smooth surface; The color is transparent or translucent.
2、Excellent plasticity:PFAhasPTFEThe excellent characteristics of its mechanical strength ratio at high temperatures.FEPAt the same time, it is also a kind of fluorocarbon polymer with excellent melt fluidity, which can be directly processed into products by ordinary thermoplastic molding methods.
3,Excellent corrosion resistance: the vast majority of chemicals will notPFADamage, its chemical resistance and PTFE similar,vinylidene fluorideOkay.
4、In a large temperature range, can maintain its mechanical strength: from very low to very high temperature,PFAcan maintain its flexibility without reducing its toughness, andPFAThe maximum temperature for sustainable use is260℃, andPTFESimilarly, this is the highest continuous use temperature of all fluorocarbon polymers.
5,Excellent electrical properties: in a wide frequency range,dielectric constantLow and stable. The insulation loss coefficient is extremely low and stable over a wide temperature and frequency range. High volume resistivity. Extremely high insulation breakdown strength.
6、Incombustible:PFAandPTFE,FEPThe same is a non-flammable polymer. limiting oxygen index greater95%Fire ratingUL94StandardV0Level.
7、Good weather resistance: even if exposed to wind and rain for a long time,PFAThe unique performance will not change.
8、non stick and low friction:PFAIt is non-sticky and has the ability to prevent water, oil and other substances, and the surface is smooth. widely used inSemiconductorIndustry, as well as medical, chemical anti-corrosion, automotive and other fields.
Figure II:PFA Bar Source: Dan Kai
3. PFAGreatofApplication areas
1. PFA is suitable for making corrosion-resistant parts, wear-resistant parts, seals, insulation parts and medical equipment parts.
2. PFA high temperature wire, cable insulation layer, anti-corrosion equipment, sealing material, pump valve bushing, and chemical container.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
Pfa, excellent, with, temperature, use, high temperature, dankai
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