A Strong, Tough and Fire-Retardant Biomimetic Multifunctional Wooden Laminate

被引：5

作者：

Han, Xiaoshuai ^{[1
]}

Wang, Xiaoyi ^{[1
]}

Tian, Wei ^{[1
]}

Wang, Yuli ^{[1
]}

Wang, Jiangbo ^{[2
]}

Lam, Frank ^{[3
]}

Jiang, Shaohua ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Coll Mat Sci & Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China

[2] Ningbo Univ Technol, Sch Mat & Chem Engn, Ningbo 315211, Peoples R China

[3] Univ British Columbia UBC, Dept Wood Sci, Vancouver, BC V6T 1Z4, Canada

来源：

POLYMERS | 2023年 / 15卷 / 20期

关键词：

wood; biomimetic; mechanical performance; fire-retardant; FLAME-RETARDANT; DEGRADATION; STRATEGY;

D O I：

10.3390/polym15204063

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Mildly delignified wood showed a well-preserved wood cell wall framework, and its derived compressed materials demonstrate excellent mechanical properties and advanced functional material potential. Here, we proposed a simple yet effective approach for making strong, tough, and fire-retardant wooden laminate by a three-step process of mild delignification, infiltrating potassium nonafluoro-1-butanesulfonate (PFBS), and hot-pressing to densify the material. PFBS can be infiltrated into the micro/nano-structures of the mildly delignified wood to achieve a good flame-resistant protective barrier. Flame retardant tests showed that this strong, tough, and fire-retardant wooden laminate has a superior flame-retardant performance to natural wood. Additionally, the wooden laminate also exhibits a simultaneously enhanced tensile strength (175.6 MPa vs. 89.9 MPa for natural wood) and toughness (22.9 MJ m-3 vs. 10.9 MJ m-3 for natural wood). Given these attributes, the resulting wooden laminates are identified as promising candidates for high-performance structural applications, fulfilling stringent requirements for both mechanical resilience and flame-retardant efficacy.

引用

页数：11

共 56 条

[1] Wood Nanomaterials and Nanotechnologies [J].