▎ 摘　　要

NOVELTY - Micro-foamed polyvinyl chloride conductive film comprises 60-95 pts. wt. modified polyvinyl chloride resin particles, 5-40 pts. wt. ethylene/vinyl acetate/carbon monoxide (E/VA/CO) copolymer, 5-15 pts. wt. modified graphene powder, 0.01-0.1 pts. wt. modified nano-silicon dioxide. USE - The micro-foamed polyvinyl chloride conductive film is useful for antistatic packaging material, military package, aerospace and electromagnetic shielding material industries. ADVANTAGE - The micro-foamed polyvinyl chloride conductive film has good cold resistance, thermal insulating effect, and no plasticizer precipitation risk, is environmentally friendly, saves energy, and reduces emission and carbon circulation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing micro-foamed PVC conductive film, comprising (1) uniformly mixing the PVC resin powder, environmentally friendly stabilizer, solid lubricant and solid plasticizer, (2) extruding and granulating the mixed mixture in a single-screw extruder to obtain modified PVC resin particles, (3) evenly mixing graphene powder, absolute ethanol and liquid silane coupling agent to obtain modified graphene powder, (4) uniformly mixing nano-silicon dioxide, dehydrated alcohol and liquid silane coupling agent to obtain modified nano-silicon dioxide, (5) combining the modified PVC resin particles, modified graphene powder and modified nano-silica, uniformly mixing with ethylene/vinyl acetate/carbon monoxide copolymer particles, (6) refining the mixture into a film to obtain PVC film, (7) soaking the PVC film in an organic solution at room temperature, (8) placing PVC film in a pressure vessel immediately drying surface, and treating with saturated carbon dioxide, (9) immediately removing out the PVC film sample, placing in a water bath at 60-90℃ for 30-40 seconds, and (10) removing out the micro-foamed PVC film, and drying naturally.