期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 9, 期 46, 页码 15571-15581出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c05695
关键词
cellulose nanomaterials; functional wood composites; functional nanocellulose foams; shear thinning; CO2 uptake; hierarchical structure
资金
- Vinnova
- Swedish Energy Agency
- Formas [2018-04979]
- Vinnova [2018-04979] Funding Source: Vinnova
- Swedish Research Council [2018-04979] Funding Source: Swedish Research Council
Wood-foam hierarchical composites were produced by shear-forced infiltration of shear-thinning nanocellulose-based foams or gels into the tracheids of Picea abies. The functional foams showed reversible CO2 adsorption and release of mosquito-repellent compounds, demonstrating the potential application of this simple route for hierarchically porous composites based on renewable materials.
Wood-foam hierarchical composites were produced via the shear-forced infiltration of shear-thinning nanocellulose-based foams or gels into the tracheids of Picea abies. Shear processing viscoelastic and shear-thinning aqueous foams composed of cellulose nanocrystals, methylcellulose, and tannic acid (total solids content: 2 wt %) resulted in foam-filled wood composites containing 15-20 wt % foam, with open foam structures and compression strengths similar to those of unmodified P. abies. An amino-functionalized nanocellulose-containing foam confined in wood reversibly adsorbed CO2, retaining 15% of its theoretical uptake capacity over 50 cycles in the thermogravimetric analyzer, and a citronellol-loaded foam released this mosquito-repellent compound over four days, as evaluated using solid-phase microextraction. Shear-forced infiltration of functional foams into wood is an operationally simple route to hierarchically porous composites based on renewable materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据