The present invention discloses a preparation method for a bio-based high-transparency thermoplastic elastomer composition. The thermoplastic elastomer comprises the following material components: SEBS 20%-55%, white oil 25%-45%, petroleum resin 10%-25%, slip agent 0.2%, and antioxidant 0.2%. The preparation method comprises the following steps: S1, adding the above substances into a high-speed mixer in order and mixing thoroughly to form a composition; S2, transferring the composition to a twin-screw extruder for melt extrusion granulation to obtain thermoplastic elastomer modified granules. The thermoplastic elastomer composition prepared in this invention is made from partially bio-based raw materials, which is conducive to reducing carbon emissions and achieving sustainable development of polymer materials. The elastomer composition has high transparency and strong encapsulation force with polycarbonate, excellent chemical resistance and heat resistance, and can be applied to various application scenarios such as swimming pools or seawater. The composition has excellent mechanical properties, simple preparation process, high processing efficiency, and is conducive to large-scale commercial production.
Country Code: CN
Application Number: CN202311468421.2
