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首页> 外文期刊>Environmental research >Rapid UV-radiation synthesis of polyacrylate cryogel oil-sorbents with adaptable structure and performance
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Rapid UV-radiation synthesis of polyacrylate cryogel oil-sorbents with adaptable structure and performance

机译：快速紫外线辐射合成聚丙烯酸酯冷冻凝胶油吸附剂，适应性结构和性能

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摘要

Macro-porous poly(lauryl acrylate) cryogel sheets as oil-sorbents were prepared through UV-radiation cryo-polymerizations in 1, 4-dioxane at low temperatures (-5, -2 and 0 °C) within 30 min. The influences of total monomer concentration, crosslinking monomer amount and polymerization temperature on the formation of cryogels were studied. The chemical structure and porous morphology were characterized through the techniques of Fourier transform infrared spectroscopy, thermal gravimetric analysis, contact angle measurement and scanning electron microscopy, confirming the features of high hydrophobicity, macro-porosity and good thermal stability. As well, the comparison between conventional gels prepared at room temperature and cryogels at lower temperatures was made, showing the higher rate of cryo-polymerization than conventional polymerization under the same UV-radiation condition. The swelling investigation was carried out with several organic solvents and oils. Enhanced performance of oil absorption was observed for those cryogels considering the absorption capacity and absorption rate. Variation of initiator amount and acrylate monomers could also modulate the absorption capacity. Those cryogel oil-sorbents exhibited wide adaptability, good reusability and high-temperature tolerance. Thus, this rapid and low-cost fabrication opens out a novel pathway to prepare efficient oil-sorbents used in waste water treatment.
机译：通过在30分钟内在低温（-5，-2和0℃）的1,4-二恶烷中在1,4-二恶烷中在30分钟内在低温（-5，-2和0℃）中制备作为油吸附剂的宏观多孔聚（月桂基）冷冻胶片。研究了总单体浓度，交联单体量和聚合温度对细菌形成的影响。通过傅里叶变换红外光谱，热重分析，接触角测量和扫描电子显微镜技术的技术表征化学结构和多孔形态，确认了高疏水性，宏观孔隙度和良好的热稳定性的特征。同样，在室温和较低温度下在室温下制备的常规凝胶之间的比较，显示比在相同的紫外线辐射条件下的常规聚合率高的低温聚合速率。用几种有机溶剂和油进行溶胀调查。考虑到吸收能力和吸收率的那些冷冻胶质，观察到吸油的增强性能。引发剂量和丙烯酸酯单体的变异也可以调节吸收能力。那些冷冻凝胶油吸附剂具有广泛的适应性，可重用性和高温耐受性。因此，这种快速和低成本的制造开辟了一种新的途径，以制备用于废水处理的有效的油吸附剂。

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  • 来源
    《Environmental research》 |2020年第8期|109488.1-109488.11|共11页
  • 作者

    Abdul Haleem; Hui-Juan Li; Peng-Yun Li; Chuan-Shan Hu; Xi-Chuan Li; Jia-Yun Wang; Sheng-Qi Chen; Wei-Dong He;

  • 作者单位

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

    Key Laboratory of Xin'an Medicine Ministry of Education Anhui Province Key Laboratory of R&D of Chinese Medicine Anhui University of Chinese Medicine Hefei Anhui 230038 China;

    CAS Key laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China;

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  • 正文语种 eng
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  • 关键词

    Oil-sorbent; UV-Radiation; Polyacrylate; Macro-porosity; Cryo-polymerization;

    机译：油脂;紫外线辐射;聚丙烯酸酯;宏观孔隙;冷冻聚合;

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