文章摘要
掺杂钨VO2微胶囊智能控温包装纸的制备及性能
Preparation and performance of PCMs/W-VO2 Intelligent temperature-control packaging paper
投稿时间:2018-10-25  修订日期:2018-12-11
DOI:
中文关键词: 相变微胶囊  掺杂钨二氧化钒  智能控温包装纸  隔热温差  水性涂料
英文关键词: phase change microcapsules(PCMs)  doped tungsten vanadium dioxide?(W-VO2)  intelligent temperature-control packaging paper  thermal insulation temperature difference  water-based coatings
基金项目:国家自然科学基金(31270633);制浆造纸工程国家重点实验室开放基金资助项目(201512);连云港“555工程”计划(2015-13)
作者单位E-mail
张鑫 江南大学生态纺织教育部重点实验室 15852836815@163.com 
龙柱 江南大学生态纺织教育部重点实验室 longzhu@jiangnan.edu.c 
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中文摘要:
      由于传统型隔热控温材料在控温性及防水性等方面存在不足,不能准确控制温度范围而用于化学药品、精密仪器等物品的保护。故以水性丙烯酸树脂为主要成膜物,掺杂钨二氧化钒微胶囊 (PCMs/W-VO2)为填料,辅以流平剂、防水剂等制备出PCMs/W-VO2智能控温水性涂料,涂布于白卡纸,制成PCMs/W-VO2智能控温包装纸,通过SEM、FT-IR、EDS、DSC等对样品形貌、结构、相变性能进行分析,并测试了隔热温差、接触角及机械性能等。结果表明:制得的包装纸相变温度为45 ℃,相比包装原纸78%的近红外透射率,智能控温包装纸的近红外光透射率降低了32%,隔热温差可达10.7℃,具有优异的隔热控温性能;EDS表明智能控温包装纸表面含有PCMs/W-VO2微胶囊和适量防水剂;SEM表明微胶囊均匀分布在纸页表面,接触角明显增大,说明纸页具有较好的疏水性;纸页物理性能有所提高,考虑到涂料成本,其抗张指数和撕裂指数的最佳值分别为6.84 kN/m和22.69 mN·m2/g。
英文摘要:
      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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