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With China Plastic Machinery
With China Plastic Machinery
PVC lenses are actually a vinyl polymer, and the material is a non-crystalline material. It is non-flammable, high-strength, resistant to climate change, and has excellent geometric stability.
PVC lenses are actually a vinyl polymer, and the material is a non-crystalline material. In actual use, stabilizers, lubricants, auxiliary processing agents, colorants, impact agents and other additives are often added to PVC materials. It is non-flammable, high-strength, resistant to climate change, and has excellent geometric stability. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.
PVC film, the main component of which is polyvinyl chloride, is bright in color, corrosion-resistant, strong and durable. Since some toxic auxiliary materials such as plasticizers and anti-aging agents are added during the manufacturing process to enhance its heat resistance, toughness, ductility, etc., its products are generally not used to store food and medicines. It is a popular, popular and widely used synthetic material in the world today. Its global usage ranks second among all synthetic materials. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, and its consumption was 5.3 million tons. In Germany, the production and consumption of PVC averaged 1.4 million tons. PVC is being produced and used worldwide at a growth rate of 4%. In recent years, the growth rate of PVC in Southeast Asia has been particularly significant, thanks to the urgent need for infrastructure construction in Southeast Asian countries. Among the materials that can produce three-dimensional surface films, PVC is the most suitable material. PVC (polyvinyl chloride), the structural formula of its monomer is CH2=CHCl.
PVC materials are widely used, with good processing performance, low manufacturing cost, corrosion resistance, insulation and other good characteristics. They are mainly used to make: Prewin PVC cards; PVC OEM; PVC wire; PVC curtains; PVC plastic-coated welded mesh; PVC foam boards, PVC ceilings, PVC water pipes, PVC skirtings, etc., as well as threading pipes, cable insulation, plastic doors and windows, plastic bags, etc. PVC products can be seen everywhere in our daily life. PVC is used to make various imitation leathers, used in luggage bags, sports products such as basketballs, footballs and rugby. It can also be used to make uniforms and belts for special protective equipment.
The most commonly used processing technology for PVC products is extrusion and injection molding. With the research and development of additives used for PVC, the performance of PVC additives has been continuously improved, which has gradually expanded the application field of PVC. For some PVC products with special requirements, such as: higher heat resistance and anti-aging performance, they are also used in different special fields. PVC generally needs to be modified and granulated first. After being prepared into particles, plasticization is more complete and processing is easier, especially for products with injection molding process. Strictly speaking, PVC products with special requirements and PVC modified formulas are tailor-made according to customer requirements. At present, Xuzhou Hanyong Plastic New Materials is in a leading position in research and development in this area.
Polymerization method, formula and process conditions are the main factors affecting the structural morphology and cost of PVC. PVC resin is usually produced by suspension polymerization, bulk polymerization, emulsion polymerization and solution polymerization, among which the first three are the main ones. According to statistics. At present, the suspension polymerization method accounts for about 80% of the total output of PVC resin in the world, the bulk polymerization method accounts for about 10%, and the emulsion polymerization method accounts for more than 10%.
With the expansion of the use field and use requirements, the general-purpose PVC resin obtained by traditional process technology can no longer meet the requirements. There are two trends in the PVC resin industry: one is the specialization of general resins, that is, by adjusting the reaction system and process conditions, PVC resins with more suitable performance and easy processing are produced, such as high relative molecular mass PVC, ultra-low polymerization degree PVC, spherical resins, matting resins, blended resins, etc.; the other is the engineering of PVC resins, that is, striving to manufacture heat-resistant, oxidation-resistant, impact-resistant, weather-resistant, and enhanced PVC special resins to replace some general engineering plastics.
Dongguan Tianpeng Lens Co., Ltd. is a comprehensive manufacturing enterprise specializing in the development and manufacture of plastic lens sheet production, and can also process according to customer requirements, PS board (PS lens), acrylic (plexiglass) jewelry crafts, plastic lenses (mobile phone lenses), plastic injection molding novelties, and products are widely used as gifts and accessories. Our company has independent export rights, and more than 80% of our products are exported products, mainly sold to Europe, America, South Korea, Japan and other places. Equipped with a series of advanced processing equipment and applying the industry's top production technology, we can provide customers with the following services: vacuum mirror plating, cutting and profiling, grinding and polishing, silk screen printing, oil spraying, sandblasting, seamless hot pressing, etc. We can also provide more precise processing such as laser engraving and cutting, CNC, etc. to meet customers' needs for high-quality products. For a long time, we have won the trust and support of our customers with the love and care of friends from all walks of life. We will continue to adhere to the principle of "quality first, reputation first" and strive to provide more perfect services to new and old customers. In addition, in order to meet the export needs of our customers, the PS mirrors, acrylic mirrors and PC mirrors we produce can provide ROHS certification.
If you are interested in our company and machine, feel free to contact our sales engineer. We will contact you as soon as possible.