PVC

1. What material is PVC?

The full English name of PVC is the abbreviation of poly vinyl chloride (PVC molecular structure). Generally speaking, our common PVC is a kind of plastic decoration material. Its chemical name is polyvinyl chloride. It is composed of an amorphous thermoplastic resin made by polymerization of vinyl chloride monomer and certain additives (such as stabilizers, lubricants, fillers, etc.). It has mechanical properties, strong acid and salt resistance, and low softening point. Chemical properties are stable. Commonly used to make sheets, wires, cable insulation, seals and other items.

The essence of PVC is a vacuum plastic-absorbing film, which is used for the surface packaging of various types of panels, so it is also called decorative film and adhesive film. It is used in many industries such as building materials, packaging, medicine, etc. Among them, the building materials industry accounts for the largest proportion, accounting for 60%, followed by the packaging industry, and there are several other small-scale application industries.

2. What material is PVC?

What material is PVC? PVC is also called polyvinyl chloride. The density of pure PVC is 1.4g/cm. The density of PVC plastic parts with plasticizers and fillers added is generally 1.15-2.00g/cm. Rigid polyvinyl chloride has good tensile, bending, compression and impact resistance, and can be used alone as a structural material. The softness, elongation at break, and cold resistance of soft PVC will increase, but the brittleness, hardness, and tensile strength will decrease. PVC has good electrical insulation properties, can be used as low-frequency insulation material, and its chemical stability is also good. Due to the poor thermal stability of polyvinyl chloride, long-term heating will cause decomposition, release of HCL gas, and discoloration of polyvinyl chloride. Therefore, its application range is narrow, and the use temperature is generally between -15 and 55 degrees.

3. Types of PVC

According to the difference in hardness, PVC is divided into two types: hard PVC and soft PVC.

1. Soft PVC

Soft PVC contains softeners that easily become brittle and difficult to preserve, so its range of use is limited. Common soft PVC is generally used in floors, ceilings and leather surfaces.

2. Hard PVC

Also known as UPVC, or PVC-U products. Hard PVC does not contain softeners, so it has good flexibility, is easy to shape, not brittle, non-toxic and pollution-free, and has a long storage time, so it has great development and application value. It has a wide range of applications: pipeline industry, water supply and drainage, flame-retardant wire cable casings, flame-retardant switch housings for electrical appliances, sockets, profiles, plastic steel, some fenders, bumpers, etc.

Application of pvc

Compared with Kimura and steel, PVC has the advantages of high elasticity, high cold resistance, wear resistance, and good smoothness. Therefore, the proportion of PVC applications in the world is roughly: 65% for construction plastics, 8% for packaging, 7% for electrical and electronics, and 7% for furniture. and decoration account for 5%, general consumption 4%, and others 11%.

Due to its high chemical stability, it can be used to make anti-corrosion pipes, pipe fittings, oil pipelines, centrifugal pumps and blowers, etc. PVC hard boards are widely used in the chemical industry to make linings for various storage tanks, corrugated boards for buildings, door and window structures, wall decorations and other building materials. Due to its excellent electrical insulation properties, it can be used in the electrical and electronic industries to manufacture plugs, sockets, switches and cables. In daily life, PVC is used to make sandals, raincoats, toys, artificial leather, etc.!

PVC has high mechanical strength and good corrosion resistance. It can be used to make waste gas sewage and detoxification towers and gas and liquid conveying pipes in chemical, textile and other industries. It can also replace other corrosion-resistant materials to make storage tanks, centrifugal pumps, ventilators and joints, etc. When the plasticizer is added in an amount of 30% to 40%, soft polyvinyl chloride is produced, which has high elongation, soft products, good corrosion resistance and electrical insulation, and is often made into films for Industrial packaging, agricultural seedling cultivation and daily raincoats, tablecloths, etc. It can also be used to make acid and alkali resistant hoses, cable sheaths, insulation layers, etc.

PVC material is extremely versatile and has good processing performance, low manufacturing cost, corrosion resistance, insulation and other good features. It is mainly used to make: PVC cards, PVC OEM, PVC iron wire, PVC curtains, PVC plastic-coated welded mesh, PVC foaming boards, PVC ceilings, PVC water pipes, PVC skirting lines, etc., as well as wiring pipes, cable insulation, plastic doors and windows, plastic bags, etc. PVC products can be seen everywhere in our daily lives. PVC is used to make various imitation leathers for luggage bags, sports products such as basketballs, footballs and rugby balls, etc. It can also be used to make belts for uniforms and special protective equipment.

4. What is PVC pipe?

PVC pipe (UPVC pipe) Rigid polyvinyl chloride pipe is made of polyvinyl chloride resin mixed with stabilizers, lubricants, etc. and then extruded by hot pressing. It is the earliest plastic pipe to be developed and applied. UPVC pipe has strong corrosion resistance and is easy to bond. PVC pipe is cheap and hard in texture. However, due to the leakage of UPVC monomer and additives, it is only suitable for water supply systems with a delivery temperature not exceeding 45°C.

5. What is PVC board?

PVC board is a board made of PVC as raw material with a honeycomb mesh structure in cross-section. According to the production process, it can be divided into PVC crusted foam board and PVC free foam board.

PVC foam board has the characteristics of anti-corrosion, moisture-proof, mildew-proof, non-absorbent, drillable, sawable, planable, easy to thermoform, and hot-bent processing. Therefore, it is widely used in furniture, cabinets, bathroom cabinets, and exhibition racks. Plate, box core layer, indoor and outdoor decoration, building materials, chemical industry and other fields, advertising signs, printing, silk screen, inkjet painting, computer lettering, electronic instrument product packaging and other industries. PVC hard plastic board has excellent corrosion resistance, insulation, and certain mechanical strength; after secondary processing, it can be made into a sulfuric acid (hydrochloric acid) tank (bucket); medical empty needle racks, chemical process racks; public Bathroom water tanks; templates, decorative panels, exhaust ducts, equipment linings and other special-shaped products and containers for processed products. It is an ideal material for chemical industry, building materials, decoration and other industries.

6. PVC floor

PVC flooring is a new type of lightweight floor decoration material that is very popular in the world today, also known as "lightweight floor material". It is a popular product in Europe, America, Asia, Japan and South Korea. It is popular abroad. It has entered the Chinese market since the early 1980s. It has been widely recognized in large and medium-sized cities in China and is widely used, such as indoor homes and hospitals. , schools, office buildings, factories, public places, supermarkets, businesses, sports venues and other places. "PVC floor" refers to a floor made of polyvinyl chloride material. Specifically, it uses polyvinyl chloride and its copolymer resin as the main raw materials, adds fillers, plasticizers, stabilizers, colorants and other auxiliary materials, and applies them to the continuous sheet substrate through a coating process or calendering, extrusion or extrusion. Produced by craftsmanship.