What is Polyvinyl Chloride (PVC)?

Polyvinyl chloride (PVC) is an example of a versatile plastic and one of the most valuable products in the petrochemical industry. Currently, over 50% of PVCs are used in the construction industry. The reason for their popularity in construction is their affordability and ease of use (they can be easily assembled).


Other names for this product include:

  • Ethylene Chloro Polymer
  • Homopolymer Chlorovinyl
  • Homopolymer Vinyl Chloride
  • Polyvinyl Chloride Polymer

Polyvinyl chloride was accidentally discovered in two small instances in the 19th century. It was first discovered in 1835 by Henry Victor Regnault and again in 1872 by Eugen Baumann. In both instances, the polymer became apparent when solid white material inside a flask of vinyl chloride was exposed to sunlight.


Generally, there are two main groups of PVC resins in the market:

  1. Homopolymeric Suspension Resins: Polyvinyl chloride suspension accounts for 90% of the market as a white powdery substance. This material can be used as both flexible and rigid resins.

Specifications

  • Property
  • Chemical Formula
  • C2H3Cl)n)
  • Other Names
  • Poly Chloro Ethylene
  • Melting Point
  • 100 – 260 degrees Celsius

Advantages of Polyvinyl Chloride

Polyvinyl chloride, through the process of crude oil and chlorine gas combination, known as polymerization, possesses valuable advantages and extraordinary properties, including:

  • High flexibility due to the addition of various plasticizers.
  • Affordability and cost-effectiveness.
  • Resistance to weathering and adverse weather conditions.
  • High resistance to water, aqueous solutions, and chemicals.
  • Suitable dimensional stability.
  • High tensile strength.
  • High density.

Disadvantages of PVC

While PVC offers numerous advantages, it also comes with some disadvantages, including:

  • Low thermal tolerance.
  • Susceptibility to strong solvents such as aromatic hydrocarbons, chlorinated solvents, and esters.
  • Production of hydrochloric acid due to thermal degradation of the polymer.
  • Prone to staining and discoloration due to sulfur compounds.
  • High density.
  • Generation of toxic fumes during combustion and melting.

Production Method of Polyvinyl Chloride

Various methods exist for shaping PVC, including injection molding, extrusion, and thermal molding. Below are some common methods:

  1. Molding machines: Equipped with one or more rotating screw augers.
  2. Gelification devices: A type of machine used to produce sheets.
  3. Calender: Used to produce long sheets. In this model, plastisols and thermoplastics pass between two or more cylinders.
  4. Low-pressure shaping: In this method, molding is done by high-speed injection and low-pressure injection molding, mainly for small and medium-sized molded objects.
  5. Powder mixers: Through these mixers, various materials are combined. Pay attention to mix stabilizers, lubricants, pigments, etc., as practical issues may arise.

Applications of Polyvinyl Chloride (PVC)

Today, due to the cost-effectiveness of PVC and its other advantages, this material can be used in various industries. Below are some applications and uses:

  • Construction: Wall coverings, fittings, pipes, thin-walled pipes, windows, and doors.
  • Sporting goods: Toys and sports shoes.
  • Household items: Luggage, shoes, tablecloths, adhesive tapes, labels, book covers, credit cards, and handbags.
  • Packaging industries
  • Medical applications
  • Construction structures: Wire insulation, electrical tape, boxes, and exterior coatings.

Kala Sanat Alborz accompanies you from the beginning to the end of your business journey.

Kala Sanat Alborz offers the best and best-selling chemical materials from the best suppliers in the world with the ability to customize orders for every customer with 25 years of experience (product list). Whatever you need, ask us.

Kala Sanat Alborz helps you buy and sell polyvinyl chloride (PVC) with just one call to our experts.

At Kala Sanat Alborz, we have provided you with the fastest and most secure way to buy and sell chemical materials at the global standard level. Take action now with confidence to buy and sell chemical materials in the market.