木质素基聚合物微球的制备及其光热转化性能研究  

Preparation of Lignin-based Polymer Microspheres and Study on Solar Photothermal Conversion Properties

作　　者：顾子龙 王贝诺 顾佳阳 安志杭 张涛 马学所 黄凌琪 盛仲夷 刘赫扬 GU Zi-long;WANG Bei-nuo;GU Jia-yang;AN Zhi-hang;ZHANG Tao;MA Xue-suo;HUANG Ling-qi;SHENG Zhong-yi;LIU He-yang(School of Environmental and Natural Resources,Zhejiang University of Science and Technology,Hangzhou 310023,China;School of Biological&Chemical Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;Hangzhou Seemore New Material Technology Co.,Ltd.,Hangzhou 311300,China;School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]浙江科技大学环境与资源学院,杭州310023 [2]浙江科技大学生物与化学工程学院,杭州310023 [3]杭州曦茂新材料科技有限公司,杭州311300 [4]天津大学材料与科学工程学院,天津300072

出　　处：《高分子通报》2024年第9期1291-1299,共9页Polymer Bulletin

摘　　要：利用溶剂热反应将木质素引入到四氟对苯二甲腈和咪唑反应体系中,制备了具有光热转化性能的聚合物微球材料。研究分析了材料宽共轭分子结构对光捕捉的作用。光热测试结果表明,材料在1 kW/m^(2)太阳光辐照下30 s内升温到~58℃;在多次光开关响应下,光热转化性能稳定,能够实现热量的可控释放。另外,还通过对聚合物微球在细菌纤维素的负载,制备了更具实用性的光热转化材料,为水蒸发器提供了材料基础。Solvothermal has been used to develop lignin-based polymeric microspheres that are excellently suited for solar photothermal conversion.The materials show excellent light-absorbing performance throughout the solar spectrum,due to the large conjugated structure.As expected,the solar photothermal conversion test shows that a significant temperature increasing from room temperature to about 58℃can be achieved within 30 s under simulated solar radiation(1 kW/m^(2)).Meanwhile,the materials provide a satisfactory photothermal response during the cycling stability measurement.In addition,a composite aerogel material was prepared for practical photothermal conversion application based on solvothermal treatment in the presence of bacterial cellulose.The composite material proposed could have great potential for applications in the field of water harvesting.

关 键 词：木质素 溶剂热反应 聚合物微球 光热转化 

分 类 号：TK51[动力工程及工程热物理—热能工程] TQ317[化学工程—高聚物工业]