Project introduction: Polymer/montmorillonite nanocomposites are one of the research hotspots in the field of new materials and functional materials in recent years. Chlorinated polyethylene (CPE) is a new type of material obtained by chemical modification and substitution reaction of polyethylene (PE) with chlorine gas. Its structure is saturated, has no links, is stable in molecules, and has good oil resistance, ozone resistance, hot oxygen aging, corrosion resistance, flame resistance, bacterial and microbial resistance, weather resistance and other properties. In order to expand the application of chlorinated polyethylene in rubber and elastomer, chlorinated polyethylene rubber CM/montmorillonite nanocomposite was developed.

Main features: This project uses the composite application of montmorillonite in chlorinated polyethylene to improve its performance and expand its application fields. The innovation lies in preparing a chlorinated polyethylene CM rubber/montmorillonite nanocomposite with excellent comprehensive properties and easy processing conditions through a melt intercalation method. The characterization of the phase structure and morphology of the nanocomposite can effectively control the structure of the polymer/montmorillonite nanocomposite on the basis of accurately characterizing various fine structures of the polymer/montmorillonite nanocomposite, so that it can be designed and prepared according to performance requirements. According to the specific molecular structure of chlorinated polyethylene, select the appropriate treatment agent and appropriate process conditions, and select the appropriate system.

Technical level: The technology is at the leading level in China.

Application prospects: Polymer/layered silicate montmorillonite nanocomposites (PLS) are currently emerging polymer-based inorganic nanocomposites. Compared with conventional composite materials, the composite material has the following characteristics: the composite material has relatively high strength, elastic modulus, toughness and barrier properties with only a small amount of filler ( 5% by mass); it has excellent thermal stability and size stability; its mechanical properties are better than those of fiber reinforced polymer systems; layered silicate montmorillonite exists naturally, is rich in resources and is low in price, so it is widely used in various fields.