Waterborne polyurethane/cellulose composite aerogel with passive cooling and thermal insulation properties

被引：1
|
作者：
He, Yu [1 ,2 ]
Zhang, Zhenyu [1 ,2 ]
Ma, Haosen [1 ,2 ]
Zhou, Yan [2 ]
Tian, Xinxin [1 ,2 ]
Sheng, Dekun [1 ,2 ]
Liu, Xiangdong [1 ,2 ]
Yang, Yuming [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Sch Appl Chem & Engn, Hefei, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, CAS Key Lab High Performance Synthet Rubber & its, Changchun, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2024年 / 141卷 / 44期
基金：
中国国家自然科学基金;
关键词：
aerogel; passive cooling; waterborne polyurethane;
D O I：
10.1002/app.56158
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Passive cooling is a cooling technology that does not require external energy input, with most passive cooling strategies having high manufacturing difficulty and cost. In this study, we prepared lightweight aerogels (0.093 g/cm3) with high porosity (91.3%), directional pores, enhanced elastic recovery performance, and lower thermal conductivity (0.046 W/mK) through simple mixing, directional freezing, and freeze-drying. The prepared samples have a reflectance of 87% in the ultraviolet-visible-near-infrared (UV-Vis-NIR) range (0.2-2.5 mu m) and an emissivity of 93.6% in the atmospheric transparency window. After covering the box with axial and transverse aerogel samples, the temperature inside the box relative to the uncovered sample box decreased by 12.9 and 13.4 degrees C, respectively. This work provides a feasible method for the research of simply prepared passive cooling materials. Mechanism and performance of Waterborne polyurethane/cellulose composite aerogel. image
引用
收藏
页数：9
相关论文
共 50 条
  • [21] A New Method for Measuring the Thermal Insulation Properties of Fibrous Silica Aerogel Composite
    Mazraeh-shahi, Z. Talebi
    Shoushtari, A. Mousavi
    Bahramian, A. R.
    5TH INTERNATIONAL BIENNIAL CONFERENCE ON ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, UFGNSM15, 2015, 11 : 583 - 587
  • [22] Effective thermal conductivity model of aerogel thermal insulation composite
    He, Fang
    Wang, Yu
    Zheng, Wei
    Wu, Ju-Ying
    Huang, Yu-Hong
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2022, 179
  • [23] Starch/clay aerogel reinforced by cellulose nanofibrils for thermal insulation
    Zhao, Yan-Wen
    Tian, Mao-Zhang
    Huang, Pei
    CELLULOSE, 2021, 28 (06) : 3505 - 3513
  • [24] Microstructure and Thermal Insulation Property of Silica Composite Aerogel
    Shang, Lei
    Lyu, Yang
    Han, Wenbo
    MATERIALS, 2019, 12 (06)
  • [25] Starch/clay aerogel reinforced by cellulose nanofibrils for thermal insulation
    Yan-Wen Zhao
    Mao-Zhang Tian
    Pei Huang
    Cellulose, 2021, 28 : 3505 - 3513
  • [26] Composite thin film of silica hollow spheres and waterborne polyurethane: Excellent thermal insulation and light transmission performances
    Liao, Yuchao
    Wu, Xiaofeng
    Wang, Zhen
    Yue, Renliang
    Liu, Gang
    Chen, Yunfa
    MATERIALS CHEMISTRY AND PHYSICS, 2012, 133 (2-3) : 642 - 648
  • [27] A Study on the Evaluation of Thermal Insulation Performance of Cellulose-Based Silica Aerogel Composite Building Materials
    Hwang, Jeo
    Kim, Yoonmi
    Park, Jooyoung
    Rie, Dongho
    POLYMERS, 2024, 16 (13)
  • [28] The use of cellulose nanocrystals to enhance the thermal insulation properties and sustainability of rigid polyurethane foam
    Septevani, Athanasia A.
    Evans, David A. C.
    Annamalai, Pratheep K.
    Martin, Darren J.
    INDUSTRIAL CROPS AND PRODUCTS, 2017, 107 : 114 - 121
  • [29] Preparation, characterization and properties of SiO2 aerogel composite thermal insulation coating
    Liu Z.
    Ding Y.
    Shu X.
    Liu N.
    Ding, Yidong, 1600, Italian Association of Chemical Engineering - AIDIC (55): : 259 - 264
  • [30] Preparation and Characterization of Cellulose Nanofibril-Waterborne Polyurethane Composite Films
    Xinqi Li
    Jinghuan Chen
    Jingang Liu
    Qi Chen
    Paper and Biomaterials, 2023, (01) : 26 - 34
12345