The invention relates to the technical field of polymer materials, and discloses an aerogel-modified vapor-phase TPE flame-retardant material comprising the following components by weight parts: 70–90 parts of TPE, 10–30 parts of flame retardant, and 0.1–0.5 part of antioxidant. The flame retardant comprises the following components by weight parts: 30–60 parts of aerogel-modified aluminum diethylphosphinate, 20–50 parts of high-phosphorus polymer, 5–20 parts of synergist, 0.5–2 parts of surface modifier, and 0.5–5 parts of petroleum-based rubber processing oil. The preparation method is as follows: mix TPE, flame retardant and antioxidant evenly, add into a twin-screw extruder, control the main engine speed at 350–550 r/min, the processing temperature of the first zone at 140–180℃, that of other zones at 150–200℃, and the head temperature at 170–200℃, conduct melt blending and extrusion pelletization to obtain the aerogel-modified vapor-phase TPE flame-retardant material. The technical solution can obtain a TPE flame-retardant material with excellent flame retardancy, remarkable thermal insulation effect and good mechanical properties. Meanwhile, no dripping occurs during use of the material, and industrial production can be realized.
Area Code: CN
Application Number: CN202411372746.5
