The Preparation Method Of Rubber/clay Nanocomposites And The Study Of Structure And Performance

Rubber/clay nanocomposites attracted widespread attention for excellent performance,the preparation of exfoliated clay/rubber nanocomposites has been one of the researchpriorities and difficulties, thus achieving exfoliated clay/rubber nanocomposites, push it to theindustrial application has important practical significance.This topic mainly based on the difficulty of the rubber/clay nanocomposites are in thepractical application, based on the melt method proposed the preparation of the newpreparation method of rubber/clay nanocomposites, in situ organic modification-expansionand pre-expansion method, respectively investigated the mechanical properties andmicrostructure of rubber/clay nanocomposites in different preparation methods, such as situmodification-expansion and pre expansion method; prepared by emulsion method ofrubber/clay nanocomposites, and research the flocculation mechanism of emulsionpolymerization and the mechanical properties and microstructure prepared by emulsion ofrubber/clay nanocomposites.Situ organic modification-preparation of the pre-expanded clay/rubber nanocompositematerials are mainly added to the organic modified clay in an organic solvent while, use athree-roll mill to achieve the organically modified clay and the pre-expansion step, the claysheets pitch further expanded make the rubber macromolecules easier intercalation into theclay sheets. By examining the analysis of different types of organic solvents, organic solventsin situ organic modification-pre-expansive soil in different mass fractions mechanicalproperties of rubber nanocomposites, the impact on the microstructure, get the inner law ofpreparation clay and fill the rubber, guidance rubber/clay nanocomposites industrialapplications, development and promotion. The experimental results showed that: in-situ organic modification-pre-expansionmethod were rubber/mechanical properties and microstructure phase structure claynanocomposites are superior to melt method and the pre-expansion method, at the same timethis method is simple processing step, easy to operate, fully embodies the feasibility andadvantages of the new preparation methods.