H.D.Plastics can extrude PVC plastic doors and windows, PVC Channel, PVC edge corners, PVC trims, PVC guardrails, etc. that are common in our daily life are called PVC profiles. We have been in the plastic extrusion for more than 10 years.
PVC profile is the abbreviation of PVC (polyvinyl chloride) plastic profile. Generally speaking, the extruded PVC plastic products whose product cross-section is non-circular are called PVC plastic profile. There are two types of profiles, one is all-plastic profiles, and the other refers to composite profiles obtained by compounding plastic materials and non-plastic materials. According to the material, it can be divided into soft profiles and hard profiles.
PVC profile production process
Take PVC rigid plastics as the column: there are two main production processes of rigid PVC door and window profiles: single screw extrusion molding process and twin screw extrusion molding process. The raw materials used in the two processes are extruded mixed powder in the previous process according to a certain formula. At present, most of the extrusion of PVC door and window profiles adopt conical screw extrusion production equipment.
Advantages of PVC profiles
1: Flame retardant– The biggest feature of PVC (polyvinyl chloride) plastic is flame retardant, so it is widely used in fire protection applications, and extruded PVC products are no exception. However, PVC will release hydrogen chloride and other toxic gases, such as dioxins, during the combustion process. The burning of PVC is divided into two steps. First burning at 240℃-340℃ to decompose the hydrogen chloride gas and then burning the carbon at 400-470℃.
2: Stable physical and chemical properties. Compared with steel or aluminum profiles and other materials, it is not easy to be corroded by acid and alkali; PVC plastic profiles that are relatively resistant to heat have a flame retardant value of 40 or more, chemical resistance, high resistance to concentrated hydrochloric acid, and sulfuric acid with a concentration of 90. Nitric acid of 60 and sodium hydroxide of concentration 20 has the advantages of good mechanical strength and insulation.
3: Product flexibility and low cost. PVC profile can easily change the mold equipment to suit the shape of the product and reduce the production cost. At the same time, PVC plastic products have the advantages of lightweight material, which is convenient for transportation and installation and increases work efficiency.
PVC Plastic Extrusion industry outlook
At present, China’s urban construction is in full swing. PVC profiles play a huge role in building material industry.
PVC profile extrusion products have been recognized by people. For example, compared with other products, our common PVC doors and windows have practicality such as low price, convenient installation, high flame retardancy, good heat insulation, etc., and are very popular in the building materials market. In the future, with the development of technology and the improvement of technology, more and more PVC profiles are being developed and applied, which will play a huge role in improving people’s living standards and production construction.
PVC has been also used in the medical field for more than 50 years. It was originally designed to make flexible pipes and containers to replace rubber and glass used in health care.