Product Focus: Comprehensive Guide to PVDF from Basics to Application

Product Focus: Comprehensive Guide to PVDF from Basics to Application

High-Performance Fluoropolymer Solutions by Alfa Chemistry

Polyvinylidene fluoride (PVDF) stands out as a premium polymer due to its strong properties and superior chemical resistance. At Alfa Chemistry, our expertise as one of the leading PVDF material suppliers ensures that every product—from PVDF rods and PVDF tubing to PVDF sheets and PVDF films—exemplifies precision and reliability. Whether you’re working in chemical processing, pharmaceuticals, water treatment, or other specialized fields, our PVDF series offer the performance and reliability you need.

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Overview of PVDF

Many wonder, what does PVDF stand for? PVDF polymer demonstrates semi-crystalline properties through its repeating vinylidene fluoride monomer structure resulting in PVDF with balanced durability and processability.

Chemical Resistance

Exceptional PVDF chemical compatibility with acids, solvents, and hydrocarbons. Check our PVDF chemical compatibility chart for details.

Mechanical Durability

Demonstrates high tensile strength along with superior impact resistance and extended durability over time. PVDF piping along with PVDF pipe fittings and PVDF lined pipes demonstrates its exceptional toughness.

Thermal Stability

With a wide PVDF temperature rating, this material maintains performance across extreme conditions.

UV and Weather Resistance

Functions effectively indoors and outdoors because it demonstrates an excellent resistance to degradation from sunlight.

Ease of Processing

Available in grades that cater to various processing methods including extrusion, injection molding, and sintering.

High Purity and Consistency

Manufactured under stringent quality standards to ensure reproducibility and reliability.

Polymerization Methods of PVDF

Different polymerization methods also have a great influence on the performance of PVDF (e.g., emulsion method and suspension method).

Comparison of Emulsion vs. Suspension Polymerization

Parameter	Emulsion Polymerization	Suspension Polymerization
Particle Size	Small, uniform particles (0.2~0.5 μm).	Larger, irregular particles (> 50 μm).
Molecular Weight Control	Higher molecular weight achievable.	Lower molecular weight, broader distribution.
Melting Point	Lower	Higher
Crystallinity	Lower	Higher
Melt Rheology	Low Newtonian fluid, higher viscoelasticity	High Newtonian fluid
Typical Applications	High-purity films, coatings, membranes.	Pellets for extrusion, injection molding, piping.
Advantages	Uniform particle size. Suitable for thin films.	High purity. Easier scalability. Cost-effective.
Disadvantages	Residual surfactants may affect properties. Higher processing costs.	Limited molecular weight control. Irregular particle morphology.

PVDF Product Portfolio & Selection Guide

Key Advantages: Easy dispersion in solvents, ideal for creating uniform thin films or PVDF chemical resistant coatings.

Recommended For: Custom formulations requiring precise viscosity control or solvent-based processes.

PVDF Powder

Applications:Coatings, membranes, 3D printing, and composite formulations.

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Key Advantages: High melt flowability, suitable for complex geometries and high-volume production.

Recommended For: Industrial parts requiring mechanical durability and PVDF chemical compatibility in harsh environments.

PVDF Granule (Pellets)

Applications: Injection molding, extrusion, and melt-processing for components like PVDF piping, PVDF pipe fittings, or PVDF tubing.

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Key Advantages: Flexibility, transparency, and excellent PVDF temperature rating (-40°C to 150°C).

Recommended For: Thin-film applications demanding UV resistance, electrical insulation, or energy harvesting.

PVDF Film

Applications: Piezoelectric sensors (PVDF piezoelectric), protective layers, and dielectric films in electronics.

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Key Advantages: Combines PVDF properties with conductive metal layers (e.g., aluminum, gold) for enhanced functionality.

Recommended For: Advanced electronics requiring lightweight, corrosion-resistant conductive materials.

PVDF Metallized Film

Applications: EMI shielding, capacitive sensors, and reflective surfaces in aerospace or optics.

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Key Advantages: Superior dimensional stability and PVDF chemical resistance to acids, bases, and solvents.

Recommended For: Custom parts needing high wear resistance in corrosive or high-purity environments.

PVDF Rod

Applications: Machined components for chemical processing (e.g., valves, seals, bearings).

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Key Advantages: Smooth inner surface, low permeation, and resistance to aggressive chemicals.

Recommended For: Systems handling acids, ultrapure water, or pharmaceuticals.

PVDF Tube

Applications: Fluid transfer systems, PVDF-lined pipe networks, and laboratory equipment.

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Key Advantages: Enhanced stiffness, thermal conductivity, and EMI shielding compared to standard PVDF plastic.

Recommended For: High-load applications requiring lightweight, conductive, and corrosion-resistant materials.

PVDF with Carbon Fiber

Applications: Structural components in aerospace, automotive, or industrial machinery.

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Key Advantages: Ultra-high purity, excellent adhesion, and electrochemical stability.

Recommended For: Energy storage systems prioritizing energy density, cycle life, and safety compliance.

Lithium Battery Grade PVDF

Applications: Binders for lithium-ion battery electrodes, separator coatings.

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Featured Product List

Types	Product Name
PVDF Powder	PVDF (Average molecular weight of 534000)
	PVDF Powder 201
	PVDF Powder 202
	PVDF Powder 203
	PVDF Powder For Coating
PVDF Granule (Pellets)	PVDF granule, 5 mm, weight 100 g
	PVDF Granule 2063
	PVDF Resin For Extrusion & Moulding
	PVDF Resin For Injection
	PVDF Resin For Membrane
PVDF Film	PVDF, film, 0.0045 mm, 150 × 150 mm, condition biaxially oriented
	PVDF, film, 0.01 mm, 100 × 100 mm, oriented uni-axially oriented
	PVDF, film, 0.028 mm, 100 × 100 mm, oriented uni-axially oriented
	PVDF, film, 0.11 mm, 100 × 100 mm, oriented uni-axially oriented
	PVDF, film, 0.125 mm, 150 × 150 mm
	PVDF, film, 0.25 mm, 145 × 145 mm
	PVDF, film, 0.5 mm, 100 × 100 mm
PVDF Piezoelectric Film	PVDF Piezoelectric Film with 100 nm thick Aluminum Electrode
	PVDF piezoelectric film with 5 um thick silver ink electrode
	PVDF piezoelectric film with thick Screen-Printed Silver Electrode
PVDF Metallized Film	PVDF, metallized film, 0.025 mm, 100 × 100 mm, ohms/square 2
	PVDF, metallized film, 0.03 mm, 149 × 215 mm, ohms/square 2
	PVDF, metallized film, 0.04 mm, 100 × 100 mm, ohms/square 2
	PVDF, metallized film, 0.05 mm, 145 × 205 mm, ohms/square 2
	PVDF, metallized film, 0.052 mm, 200 × 200 mm, oriented uni-axially oriented
	Metallized piezoelectric film, sputtered Cu/Ni electrode
PVDF Tube	PVDF Standard Tubing
PVDF Rod	PVDF, Rod, Natural
PVDF with Carbon Fiber	3381 PVDF, Carbon Fiber
	3382 PVDF, Carbon Fiber
	3383 PVDF, Carbon Fiber
	3385 PVDF, Carbon Fiber
	3399 X 136178 A Polyvinylidene Fluoride (PVDF) Carbon Fiber - Carbon Nanotube - Electrically Conductive
Lithium Battery Grade PVDF	PVDF-LBG01 (Ultra-high viscosity grade)
	PVDF-LBG02 (Medium viscosity grade)
	PVDF-LBG04 (Low viscosity grade)
	PVDF-LBG09 (High viscosity grade)
	PVDF-LBG11 (For lithium battery separator coating)

PVDF Services & Solutions

Alfa Chemistry delivers more than premium PVDF materials by providing extensive fluoropolymer services to enhance product development while ensuring quality control and regulatory compliance. Our PVDF-focused solutions provide solutions for challenges faced by different industries ranging from research and development to full-scale production.

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Custom PVDF Coating Development

• Formulation of PVDF chemical resistant coatings tailored to substrate adhesion, corrosion protection, or aesthetic requirements.
• Optimization of coatings for specific environments (e.g., UV exposure, chemical splashes, high humidity).

PVDF Material Analysis & Testing

• Physical Property Analysis
• Chemical Property Analysis
• Thermal Analysis
• Aging & Durability Testing

Various Industry Applications of PVDF

Energy Storage

Binder material for lithium-ion battery electrodes due to adhesion and electrochemical stability.

Water Treatment

Hollow-fiber membranes for ultrafiltration and desalination systems.

Chemical Processing

Linings, valves, and pumps for corrosive fluid handling.

Architecture

High-purity coatings for exterior walls, roofs, and solar panel backsheets.

Electronics

Dielectric layers in capacitors, piezoelectric films, and wire insulation.

Why Choose Alfa Chemistry?

Technical Expertise

Decades of experience in fluoropolymer R&D and customization.

Quality Assurance

ISO-certified production with batch-to-batch consistency.

Sustainability Focus

Recyclable PVDF solutions and eco-friendly processing guidance.

Global Logistics

Reliable delivery with comprehensive documentation.

What Our Clients Say

Alfa Chemistry's lithium battery grade PVDF matches our battery production requirements perfectly. The superior performance and extended lifespan of our lithium-ion batteries result directly from the high purity and uniform electrochemical properties of the material. Our product development success hinges on this vital factor.

Laura Martinez

Head of R&D

Alfa Chemistry’s PVDF Tube serves as an essential component for our chemical processing systems. The tube's superior chemical resistance along with its flexibility has improved our fluid transfer operations. The PVDF Tube has substantially lowered maintenance expenses and operational shutdowns which makes it a crucial component of our production system.

Jessica Lee

Operations Manager

I have been using Alfa Chemistry's PVDF powder for our compounding operations for over a year now. The consistent quality and excellent dispersion have noticeably improved our production yield and product uniformity. It’s a critical component in our formulations. Truly a partner, not just a supplier!

John Smith

Production Manager

FAQs About PVDF

PVDF vs PTFE vs PFA vs ETFE – what's the difference?

• PVDF vs PTFE: PVDF offers better mechanical strength; PTFE has lower friction.
• PFA vs PVDF: PFA has higher thermal resistance but lower rigidity.
• ETFE vs PVDF: ETFE is lighter and more transparent but less chemical-resistant.

Click to view the basic parameter comparison chart of these fluoropolymers.

Is PVDF a PFAS?

PVDF belongs to the fluoropolymer family and although it exhibits some traits similar to PFAS it has been specifically developed to function safely and reliably across different settings while aiming to reduce its ecological footprint.

What solvents dissolve PVDF?

PVDF is soluble in polar aprotic solvents like dimethylformamide (DMF) or dimethylacetamide (DMAc) at elevated temperatures.

What are the key considerations for machining PVDF rods or sheets?

PVDF is relatively easy to machine using standard tools. However, ensure:

• Low cutting speeds to prevent melting (due to its PVDF temperature rating limit).
• Sharp tools to avoid surface cracking.
• Coolant-free processes, as PVDF has excellent PVDF chemical resistance to most coolants.

Can PVDF be used in medical devices?

Yes, medical-grade PVDF demonstrates biocompatibility and can be sterilized through autoclaving and gamma radiation. It's used in surgical tools, fluid transfer PVDF tubing, and implantable PVDF sensors due to its inertness and PVDF safety profile.

How does PVDF's crystallinity affect its performance?

When PVDF crystallinity increases its mechanical strength and chemical resistance enhance while its flexibility decreases. Alfa Chemistry tailors crystallinity levels (via processing parameters) for applications like rigid PVDF piping vs. flexible PVDF film.

What makes lithium battery grade PVDF unique?

This grade has ultra-low metal ion content (<10 ppm) to prevent battery electrolyte contamination. It also offers superior adhesion to electrodes, critical for maximizing lithium battery grade PVDF performance in energy density and cycle life.

Can PVDF membranes be reused in western blotting?

Yes, after proper stripping (using mild acids or commercial stripping buffers) and PVDF membrane activation with ethanol. However, repeated use may reduce protein-binding efficiency compared to nitrocellulose vs PVDF membranes. View Our PVDF Western Blotting Membranes.

How to bond PVDF to metals or other plastics?

Surface treatments like plasma activation or etching improve adhesion. Epoxy adhesives or PVDF coatings with primers are commonly used. Alfa Chemistry provides surface treatment solutions for PVDF materials.

Does PVDF emit toxic fumes during processing?

PVDF is thermally stable below 300°C. Above this PVDF temperature rating, it may release trace HF gas. Ensure proper ventilation and follow PVDF safety protocols during high-temperature processing (e.g., welding).

Frontier information: PVDF-HFP-based gel electrolyte for high-performance and safe lithium metal batteries

(Wei, Xiaoxuan, et al. 2024)

The crystallinity of PVDF hinders ionic conductivity. The PVDF-HFP composite achieves lower crystallinity levels which leads to enhanced ionic conductivity. The research incorporated high-strength, lithophilic cellulose acetate (CA) into PVDF-HFP gel electrolyte to develop a gel polymer electrolyte with superior mechanical and thermal stability. Systematic characterization and testing confirmed that a hydrogen bond network was formed between the -OH of CA and the -F of the PVDF-HFP substrate, which is why the GPE performance was improved. The prepared GPE exhibited high ionic conductivity (1.087×10⁻³ S/cm) and room temperature self-extinguishing performance, a high electrochemical window (4.81 V), a Li⁺ mobility of up to 0.56, and a capacity retention rate of 93% after 600 cycles at 1C rate. [1]

Get Started Today

Still Unsure? Contact Alfa Chemistry’s technical team for personalized guidance. Share your application requirements, and we’ll recommend the optimal PVDF material solution.

Reference

1. Wei, Xiaoxuan, et al. Chemical Engineering Journal, 2024, 157725.