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PVDF (Polyvinylidene Fluoride)

Name: پلی وینیلیدین فلوراید (PVDF) | ویژگیها، مشخصات و کاربرد صنعتی
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PVDF (Polyvinylidene Fluoride)

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PVDF (Polyvinylidene Fluoride)

category : PVDF
tag : polymer
Production date : 24 اسفند 1403
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type : پی وی دی اف – PVDF (پلی ونیلیدین فلوراید)
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price : 1,122 Toman
off : 5%

Product Description

Polyvinylidene Fluoride (PVDF) – A High-Performance Fluoropolymer

Introduction to PVDF

Polyvinylidene Fluoride (PVDF) is a semi-crystalline fluoropolymer that offers an excellent combination of chemical resistance, thermal stability, and mechanical performance. Compared to PTFE (Teflon), PVDF exhibits higher tensile strength and better form stability, making it suitable for demanding engineering applications.

PVDF is commonly available in sheet, rod, and tube forms and is widely used in chemical processing, pharmaceuticals, electronics, and food-grade applications due to its unique balance of properties and cost-effective performance.

Key Features and Advantages of PVDF

Exceptional chemical resistance to acids, bases, solvents, and hydrocarbons
Food-safe and FDA compliant in select grades
High resistance to radiation, especially gamma and UV exposure
Good mechanical strength among fluoropolymers
Lower cost compared to other high-end fluoroplastics like PTFE and PFA

Limitations of PVDF

Lower strength and stiffness compared to high-performance polymers like PEEK
High thermal expansion coefficient, which may cause dimensional instability
Lower heat deflection temperature compared to other engineering plastics (max ~150–160°C)
Reduced electrical resistance compared to premium fluoroplastics like Fluorosint

PVDF Technical Specifications

Property	Value
Scientific Name	Polyvinylidene Fluoride
Continuous Service Temperature	-60°C to +150°C
Density	1.78 g/cm³
Tensile Strength	~45 MPa
Dielectric Strength	25–30 kV/mm
UV Resistance	High (in UV-stabilized grades)
Water Absorption	Very low
Color Options	White, natural, translucent

Types of PVDF Available

Type	Features	Common Applications
Pure PVDF	Chemically resistant, thermally stable	Pipes, valves, chemical tanks
Reinforced PVDF	Contains fibers or fillers for added strength	High-load components in processing
Food-Grade PVDF	Compliant with FDA standards	Tubing and containers in food & pharma
UV-Stabilized PVDF	Enhanced outdoor durability	Solar panels, outdoor coatings

Applications of PVDF

Thanks to its strong resistance to aggressive chemicals and moderate mechanical strength, PVDF is widely used in:

Chemical processing equipment – valves, pipes, seals
Pharmaceutical and medical devices
Electrical insulation for high-frequency or high-voltage components
Membranes and filtration systems in water treatment and air purification
Coatings and films in solar panels and battery technology

Comparison: PVDF vs PTFE

Property	PVDF	PTFE
Tensile Strength	Higher	Lower
Friction Coefficient	Slightly higher	Very low
Thermal Stability	Up to 150°C	Up to 260°C
Machinability	Easier	More difficult
Radiation Resistance	Better	Poor
Cost	Lower	Higher

Frequently Asked Questions (FAQs)

Is PVDF food safe?

Yes. Specific grades of PVDF comply with FDA and EU regulations, making them suitable for food contact applications.

What is the maximum working temperature for PVDF?

PVDF can operate continuously up to 150°C, and in some cases, withstands short-term exposure to 160°C.

How does PVDF compare to PTFE?

PVDF has better mechanical strength and radiation resistance, while PTFE offers better thermal resistance and lower friction.

Is PVDF UV resistant?

Yes. UV-stabilized PVDF grades are highly resistant to UV radiation, making them ideal for outdoor use.

Summary

PVDF (Polyvinylidene Fluoride) is a high-performance engineering plastic known for its outstanding chemical resistance, ease of processing, and affordability. Its versatility in sheet, rod, and tube form makes it a top choice for various industries including chemical processing, pharmaceuticals, electronics, and food production.

While PVDF may not match PTFE or PEEK in some extreme applications, it remains one of the most balanced and cost-effective fluoropolymers available today.

SEO Title:

PVDF (Polyvinylidene Fluoride) – Properties, Applications & Technical Data

Meta Description:

Explore the properties, advantages, and applications of PVDF (Polyvinylidene Fluoride), a chemical-resistant fluoropolymer used in food, pharma, and industrial processing.

Short Description:

PVDF is a strong, chemical-resistant fluoropolymer available in sheets, rods, and tubes—ideal for industrial and food-grade applications.

Keywords:

PVDF, Polyvinylidene Fluoride, PVDF Sheet, PVDF Rod, PVDF Tube, PVDF Properties, Fluoropolymer, Chemical Resistant Plastic, Engineering Plastic, PTFE Alternative, Food Grade Plastic