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09120243055 mirbozorgisaeid68@gmail.com
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پی وی سی PVC

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Product Description

PVC Sheets & Rods | Buy Industrial PVC (Polyvinyl Chloride) at Best Price

What is PVC (Polyvinyl Chloride)?

Polyvinyl Chloride (PVC) is one of the oldest and most versatile thermoplastic polymers used in the industry. It is produced in two main types: Rigid PVC (uPVC) and Flexible PVC, depending on the presence of plasticizers.

Originally brittle, PVC gains flexibility and transparency with the addition of plasticizers. This transformation enhances its processability and resistance to environmental factors, making it suitable for a wide range of industries, from construction and packaging to electrical and medical applications.

Key Properties of PVC

PVC is popular in industry due to a combination of desirable characteristics:

  • Excellent electrical insulation

  • Low moisture absorption

  • Good chemical resistance

  • Flame retardant (self-extinguishing)

  • High processability into sheets, rods, films, and more

  • Strong adhesion with inexpensive PVC adhesives

However, some drawbacks must be considered:

  • Limited UV/weather resistance (in standard grades)

  • Brittleness at low temperatures (in rigid forms)

  • Mechanical property degradation over time in soft PVC due to plasticizer migration

  • Releases chlorine gas during processing (requires proper ventilation)

Applications of PVC in Industry

Thanks to its adaptability, PVC is used in various sectors:

  • Construction: Pipes, window profiles, roofing membranes

  • Electrical: Wire and cable insulation

  • Medical: Blood bags, tubing, medical-grade sheets

  • Packaging: Blister packs, transparent films

  • Automotive: Interior trims, seals

  • Advertising: Foam sheets for signage and displays

Technical Specifications of PVC

Property Typical Value
Density 1.38 – 1.45 g/cm³
Vicat Softening Temp 75 – 85 °C
Working Temperature 0 – 60 °C
Tensile Strength 35 – 55 MPa
Water Absorption < 0.4%
Surface Hardness (Shore D) 80 – 90
Coefficient of Thermal Expansion 80 × 10⁻⁶ /°C
Flammability Flame-retardant (self-extinguishing)

Types of PVC

Type Description
Rigid PVC (uPVC) No plasticizer, strong and brittle, used for pipes, profiles, and structural parts
Flexible PVC Contains plasticizers for softness, used in cables, medical tubing, films
Transparent PVC Offers clarity, commonly used in packaging and display materials
PVC Foam Sheet Lightweight, ideal for signage, decoration, and interior panels
Modified PVC Blended with other polymers for improved impact and weather resistance

Advantages of PVC

  • 🔥 Flame Retardant: Self-extinguishes in fire, improving safety

  • ⚡ Excellent Electrical Insulation: Ideal for cable and switchgear insulation

  • 💧 Low Moisture Absorption: Better than many engineering plastics

  • 💡 Easy Bonding and Finishing: Works well with glues and polishing

  • 🏗️ Versatile Forming: Easy to fabricate into rods, sheets, films, and custom parts

Disadvantages of PVC

  • ❌ Poor Impact Resistance: Especially in cold or rigid applications

  • ❌ Not UV-Stable (without additives): Can degrade under sunlight over time

  • ❌ Chlorine Gas Emission: Requires safety precautions during machining

  • ❌ Heavy Weight: About 1.5x heavier than polyethylene

  • ❌ Plasticizer Leaching (in flexible types): Can lead to long-term property loss

PVC Supply by Shamesh Plastic Azadi

Shamesh Plastic Azadi Company offers high-quality PVC sheets and rods in a wide range of thicknesses and dimensions, customizable for various industrial applications. Services include cutting, machining, consultation, and custom solutions for your unique production needs.

Frequently Asked Questions (FAQ)

1. What is the main difference between rigid and flexible PVC?
Rigid PVC is strong and used in pipes and window frames, while flexible PVC contains plasticizers and is used in cables and medical tubing.

2. Is PVC recyclable?
Yes, PVC is recyclable and can be reprocessed for various non-critical applications.

3. Can PVC withstand UV exposure?
Standard PVC degrades under UV. UV-stabilized grades or coatings are required for outdoor use.

4. What is the maximum working temperature for PVC?
The recommended maximum continuous use temperature is around 60°C.

5. Is PVC safe for food contact?
Only specific food-grade PVC types approved by regulatory bodies are suitable for food-related use.

 

 

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