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
顾子龙 1王贝诺 1顾佳阳 1安志杭 2张涛 2马学所 3黄凌琪 4盛仲夷 2刘赫扬5
作者信息
- 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. 浙江科技大学环境与资源学院,杭州 310023;天津大学材料与科学工程学院,天津 300072
- 5. 浙江科技大学环境与资源学院,杭州 310023;浙江科技大学生物与化学工程学院,杭州 310023
- 折叠
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/m2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.
Abstract
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/m2).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Key words
Lignin/Solvothermal/Polymer microspheres/Photothermal conversion引用本文复制引用
出版年
2024
NETL
NSTL
万方数据