森林工程2025，Vol.41Issue(1)：50-58,9.DOI:10.7525/j.issn.1006-8023.2025.01.003
碳酸钙/桉木复合材料的制备及力学性能研究
Preparation and Mechanical Properties of Calcium Carbonate/Eucalyptus Composite Materials
摘要
Abstract
To expand the application of wood in the field of outdoor reflective materials,a series of calcium carbonate/eucalyptus wood composite materials with different calcium carbonate(CaCO3)contents were prepared by hot pressing method using the mineral-ization method of alternating vacuum impregnation of eucalyptus wood with calcium chloride and sodium bicarbonate to mimic the or-ganic/inorganic composite structure of natural pearl layer.The effects of CaCO3 on the structure and properties of the mineralized mate-rials were investigated through structural characterization and performance tests.The results showed that CaCO3 could enhance the me-chanical properties of the mineralized material,improve its thermal stability and reflective ability to sunlight,and reduce the tempera-ture at which the material was heated by light.When the mineralization time was lower than 3 days,the tensile strength increased with the increase of CaCO3 content,up to 18.35 MPa,and the fracture process showed multiple fracture;when the mineralization time reached 4 days,the material's reflectance of sunlight reached more than 80%,which reduced the temperature of the original wood by 10℃compared with the original wood itself.This environmentally friendly material has a certain application potential in the field of outdoor reflective insulation field.关键词
碳酸钙/桉木/仿生矿化/光热效应/热稳定性Key words
Calcium carbonate/eucalyptus wood/bionic mineralization/photothermal effect/thermal stability分类
林学引用本文复制引用
钟昊,林作鹏,王亚男,郭明辉..碳酸钙/桉木复合材料的制备及力学性能研究[J].森林工程,2025,41(1):50-58,9.基金项目
国家重点研发计划(2021YFD2200601) （2021YFD2200601）
林业工程一流学科博士创新基金(LYGC202103). （LYGC202103）
