▎ 摘　　要

NOVELTY - Phase-change energy storage heat-conducting film material based on crystalline trans rubber, which is double-layer film with a Janus structure comprises trans-rubber film with a cross-linking degree of 0.2-1%, composite film comprises trans-rubber with a cross-linking degree of 0.2-1% and a heat conductive filler. The total film thickness is 0.1-3 mm and the thickness ratio of the trans-rubber film and the composite film of trans-rubber and heat-conducting filler is 0.2-1. USE - The film material is used in building energy saving, wear-resistant heat management devices, cold chain transportation, medical care and waste heat utilization (claimed). ADVANTAGE - The film material ensures that the homogeneity and interfacial co-vulcanization between the two layers of polymers in the Janus structure can not only maximize the heat storage capacity of crystalline trans rubber but also enables shortage of polymer heat conductivity; has both heat storage and heat conduction functions; adjusts the phase transition temperature of lightly cross-linked trans rubber at 130℃; has wide application range, high stability and has enhanced heat transfer performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing phase-change energy storage heat-conducting film material based on crystalline trans-rubber comprises (1) dissolving trans rubber in toluene dispersed with anti-aging agent, zinc oxide and stearic acid at 60℃ to prepare trans rubber solution, dispersing, dissolving vulcanizing accelerator and vulcanizing agent in toluene at room temperature, mixing with trans rubber solution, pouring on a clean glass substrate while is hot, drying on a hot stage at 60℃ until the solvent evaporates, casting trans-rubber toluene solution containing heat conductive filler, anti-aging agent, stearic acid, zinc oxide, vulcanizing agent and vulcanizing accelerator on its surface, further drying on a hot table at 60℃, placing in hot water at 75-80℃, heating, vulcanizing, cross-linking for 1-5 hours to obtain energy storage heat conducting film material with double-layer Janus structure and (2) adding trans rubber in a torque rheometer at 70℃ and 70revolutions/minute, adding anti-aging agent, zinc oxide and stearic acid after 2 minutes, banburying for 12 minutes, discharging glue, adding compounded rubber, vulcanizing agent and accelerator in the previous stage in turn in the internal mixer at 60℃ and 70revolutions/minute, mixing evenly, discharging the glue after 6 minutes, lowering the film to obtain the glue compound (b), adding the heat conductive filler on the basis of the glue compound (a), repeating the same processing procedure as the glue compound (a), adding the heat-conducting filler after adding anti-aging agent, mixing evenly, discharging the glue, lowering the film to obtain the glue compound (b), placing the glue compound a and the glue compound b in a flat vulcanizing machine, pressing into a film of required thickness at 10 MPa and 120℃, overlapping the two layers of film up and down, placing in hot water at 75-80℃, heating, vulcanizing and cross-linking for 1-10 hours to obtain energy storage heat conducting film material with double-layer Janus structure.