Polyvinyl chloride (PVC) resin as a long history of thermoplastic, its softness can be modified by adding different amounts of plasticizer to regulate. We can also blend PVC with other polymers to prepare plastic products of various properties. PVC cheap, excellent performance, so it is in the wire and cable industry has a wide range of applications. For example, the current life of the 450v/750v and the following insulated wire and cable and flexible cords are many use of PVC as a matrix resin.
With the wide application of the flame retardant PVC cable in the fields of electronic apparatus, computer, automobile and spaceflight, the flame retardancy of the cable is more and more high. PVC cable Because of the addition of a large number of plasticizers and other additives, its lack of fire resistance, in the burning will produce harmful HCL gas on the human body, HCL will also have a strong corrosive effect on the metal. In addition to the production of toxic gases, but also because some gas combustion is not complete and produce a lot of smoke, seriously affecting people's lives and property security. Therefore, the research and development of low smoke, low toxicity PVC cable has become an urgent demand for cable flame retardant industry, and has important social value.