The application of Silica in Modified Processing of PVC Pipe

Through the analysis and research on the application technology of silica (SiO:) in modified materials and PVC materials, in view of the outstanding performance of silica in strengthening and toughening of PVC materials and the technical problems existing in PVC pipes, a modified silica modification was proposed. It aims to realize the breakthrough of PVC pipe production technology and the significant improvement of product physical properties.
Polyvinyl chloride is one of the most widely used materials in plastic materials, and polyvinyl chloride pipes are the dominant pipes in general-purpose plastics. It has made great contributions to economic development and national infrastructure construction. Widely used in various water supply and drainage pipeline systems. With the development and application of plastic material technology, PVC material modification technology and new PVC products emerge in an endless stream. By adding elastic materials, the tensile properties and impact resistance of PVC materials can be effectively improved, making up for the shortcomings of poor toughness of PVC materials; by adding elastic materials The filler improves the strength, rigidity and dimensional stability of the PVC material and reduces the production cost, effectively expanding the application market of the PVC material.
Silica is composed of SiO, which has a particularly fine particle size and poor dispersing ability. It is insoluble in water and acid, soluble in caustic soda and hydrofluoric acid, does not decompose under high temperature, and has strong water absorption, and its performance is similar to that of carbon black. Mainly used as a filler for PVC materials, it can improve the mechanical properties, electrical insulation and wear resistance of products, and its enhancement performance is second only to carbon black.