Why is plastic PVC film so widely used in modern industry and life?

As a material with excellent performance and wide application, plastic PVC film has become an indispensable and important part of modern industry and daily life. PVC, or polyvinyl chloride, is a thermoplastic polymerized with vinyl chloride as a monomer. PVC film plays an important role in packaging, construction, electronics, medical and other fields due to its unique physical and chemical properties.
Basic properties of plastic PVC film
PVC film has many excellent properties, making it an ideal material for many industries:
Excellent chemical resistance
PVC film can resist corrosion from a variety of acids, alkalis and salts, and is suitable for use in various harsh environments to ensure the long-term stability of the product.
Good mechanical strength and flexibility
PVC film has strong flexibility, excellent tensile and tear resistance, and is easy to process into various shapes and specifications to meet different usage requirements.
Good electrical insulation performance
PVC itself has excellent insulation properties and is widely used in the electronics and electrical industries, such as the coating material of wires and cables.
High transparency and glossiness
PVC film can be highly transparent, and can also achieve a variety of colors and textures by adding different dyes and additives to meet visual and decorative needs.
Excellent flame retardant performance
PVC contains chlorine and has certain flame retardant properties, which can effectively reduce fire risks and improve safety.
Main application areas of PVC film
Packaging industry
PVC film is widely used in food packaging, pharmaceutical packaging and daily necessities packaging due to its transparency, moisture resistance and tear resistance, ensuring product quality and extending shelf life.
Architectural decoration
PVC film can be used as wallpaper, floor covering film, waterproof film and thermal insulation film. It is favored by the construction industry for its corrosion resistance and fire resistance.
Electronic appliances
Used for wire and cable coating, electronic component protective film, etc. to ensure the safe operation of electronic equipment.
Medical field
Medical PVC film is used to manufacture disposable medical supplies such as infusion bags, blood bags, medical gloves, etc., because it is non-toxic, harmless and easy to disinfect.
Advertising and printing
PVC film is suitable for making billboards, light box screens and logo materials, with good printing adaptability and outdoor weather resistance.
Production process of PVC film
PVC film is generally manufactured by extrusion, calendering or casting. Extrusion is suitable for mass production, and the product thickness is uniform and continuous; calendering can produce films with smooth surface and excellent mechanical properties; casting is suitable for producing films with high transparency and high grade.
During the production process, plasticizers, stabilizers, colorants and other additives are added according to different uses to improve the softness, heat resistance and aesthetics of the film.
Environmental challenges and improvement directions
Although PVC film has many advantages, there are environmental challenges in its production and disposal. Traditional PVC contains plasticizers and stabilizers, which may release harmful substances. To this end, the industry is promoting:
Development of plasticizer-free or low-toxic plasticizers
Improvement of recyclable technology
Research and application of bio-based PVC materials
These measures are aimed at reducing environmental pollution and promoting the green and sustainable development of PVC film.
Functional PVC film
Functional films such as antibacterial, UV-proof, anti-fog, and anti-smog will be increasingly used in medical, food and construction fields.
Intelligent and multi-layer composite film
Through multi-layer structure design, the barrier properties, strength and flexibility are optimized to meet more complex packaging and industrial needs.
Green and environmentally friendly material innovation
Promote the research of degradable PVC materials and alternative materials, responding to the global trend of environmental protection and carbon neutrality.
Plastic PVC film has become an important material for modern industrial production and daily life due to its excellent physical and chemical properties and diverse application fields. With the popularization of environmental protection concepts and the continuous advancement of technology, PVC film will continue to make breakthroughs in functionality, environmental protection and intelligence, providing solid material guarantees for the development of various industries.