Scholarlink

<p>Bamboo, as a renewable and biodegradable polymer resource, is currently used to develop environmentally-friendly polymer materials. However, obtaining bamboo-derived foam materials through sol–gel method encounters challenges in controlling pore structures and foam performance, primarily stemming from weak hydrogen bonding interactions among cellulose, hemicellulose and lignin. In this work, robust bamboo-derived foam materials are developed by freeze-drying all-component bamboo gels. To obtain gels with stable three-dimensional network structure, tannic acid (TA) is used to accelerate the sol–gel transition of the all-component bamboo suspension, by mediating the hydrogen bonding interactions among various biomass components. As a result, the gelation time is reduced from 60&#xa0;h for the bamboo suspension down to 6&#xa0;h for the TA/bamboo suspension. After freeze-drying the TA/bamboo gels, foam materials with a low density of ~ 0.08&#xa0;g/cm<sup>3</sup> and satisfactory thermal insulation can be obtained. Notably the addition of TA not only preserves all components of the bamboo biomass in the foam materials, but also improves the compressive strength of the bamboo-derived foam material by 240% with respect to that pure bamboo foam. This study offers a sustainable and efficient approach for developing high-performance porous materials from all-biomass resources.</p> Graphic abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hydrogen-bond-mediated rapid gelation of all-component bamboo suspension in TBAH/H2O/DMSO towards high-performance foam materials

  • 期刊论文

  • 发表日期：

    2025年5月21日

查看全文
  • Weiming Xin,
  • He Zhang,
  • Weiwei Huang,
  • Rong Zeng,
  • Xia Gao,
  • Zuowan Zhou

摘要

Bamboo, as a renewable and biodegradable polymer resource, is currently used to develop environmentally-friendly polymer materials. However, obtaining bamboo-derived foam materials through sol–gel method encounters challenges in controlling pore structures and foam performance, primarily stemming from weak hydrogen bonding interactions among cellulose, hemicellulose and lignin. In this work, robust bamboo-derived foam materials are developed by freeze-drying all-component bamboo gels. To obtain gels with stable three-dimensional network structure, tannic acid (TA) is used to accelerate the sol–gel transition of the all-component bamboo suspension, by mediating the hydrogen bonding interactions among various biomass components. As a result, the gelation time is reduced from 60 h for the bamboo suspension down to 6 h for the TA/bamboo suspension. After freeze-drying the TA/bamboo gels, foam materials with a low density of ~ 0.08 g/cm3 and satisfactory thermal insulation can be obtained. Notably the addition of TA not only preserves all components of the bamboo biomass in the foam materials, but also improves the compressive strength of the bamboo-derived foam material by 240% with respect to that pure bamboo foam. This study offers a sustainable and efficient approach for developing high-performance porous materials from all-biomass resources.

Graphic abstract