Preparation and performance of PCMs/W-VO2 Intelligent temperature-control packaging paper
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TQ316.6

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National Natural Science Foundation of China (31270633);The State Key Laboratory of Pulp and Paper Engineering (201512);The Lianyungang 555 Talents Project Program of China (2015-13)

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    Abstract:

    Due to the deficiency of traditional heat-insulation materials in temperature control and water -proofing fields, they cannot be used for the protection of chemicals, precision instruments and other items within accurate temperature range. Doped tungsten vanadium dioxide microcapsules( PCMs/W-VO2 ) water-based coatings were prepared by water-based acrylic resin as the main film-forming materials, PCMs/W-VO2 as the main insulation filler, and some flatting agent, anti-water agent, etc., then the coatings were coated on white cardboard. The experiment analyzed the morphology, structure, temperature-control property, water contact angle and mechanical properties by SEM, FT-IR, EDS,DSC etc.; The results show that the the phase-change temperature is 45℃, and the thermal insulation temperature difference of intelligent temperature-control packaging paper can reach 10.7℃; EDS shows that the surface of intelligent temperature-control packaging paper contains PCMs/W-VO2 microcapsules and appropriate waterproofing agent. The water contact angle is improved obviously, which indicates that the surface of coated paper has excellent hydrophobicity. FT-IR analysis shows that the near-infrared light reflectivity of intelligent temperature-control packaging paper is increased by nearly 32.0%, which compared with 78% near infrared transmittance of packaging paper. The physical properties of the paper sheet were also improved, and considering the economic factors of intelligent temperature-control coating, the optimum tensile index and tearing index were 6.84 kN/m and 22.69 mN·m2/g, respectively.

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History
  • Received:October 25,2018
  • Revised:December 11,2018
  • Adopted:January 10,2019
  • Online: March 28,2019
  • Published:
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