Ultra-light-weight, anti-flammable and water-proof cellulosic aerogels for thermal insulation applications

Guo, Wenwen; Chen, Shun; Liang, Fuwei; Jin, Liping; Ji, Chenpeng; Zhang, Ping; Fei, Bin

doi:10.1016/j.ijbiomac.2023.125343

Cited by 25 publications

(6 citation statements)

References 35 publications

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“…The most frequent methods for investigating the thermal characteristics of cellulosic aerogels are thermogravimetric analysis (TGA), the transient plane source (TPS) method for thermal conductivity, and the derivative thermogravimetric analysis (DTG) transient hot-wire method [ 161 , 164 , 165 , 166 ].…”

Section: Characterization Methods Of Cellulose-based Aerogelsmentioning

confidence: 99%

“…Consequently, it becomes imperative to pursue flame-retardant modifications for cellulose aerogels, aiming to enhance their fire resistance and broaden their applications [ 161 ]. Vertical burning tests (UL-94 [ 167 ]), limiting oxygen index (LOI) tests, and cone calorimetry tests are routinely employed to assess the flame retardancy of cellulose nanofibrils (CNFs) and their composite aerogels [ 164 , 165 , 166 ].…”

Section: Characterization Methods Of Cellulose-based Aerogelsmentioning

confidence: 99%

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Incorporation of Cellulose-Based Aerogels into Textile Structures

Sozcu,

Venkataraman,

Wiener

et al. 2023

Materials

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Given their exceptional attributes, aerogels are viewed as a material with immense potential. Being a natural polymer, cellulose offers the advantage of being both replenishable and capable of breaking down naturally. Cellulose-derived aerogels encompass the replenish ability, biocompatible nature, and ability to degrade naturally inherent in cellulose, along with additional benefits like minimal weight, extensive porosity, and expansive specific surface area. Even with increasing appreciation and acceptance, the undiscovered possibilities of aerogels within the textiles sphere continue to be predominantly uninvestigated. In this context, we outline the latest advancements in the study of cellulose aerogels’ formulation and their diverse impacts on textile formations. Drawing from the latest studies, we reviewed the materials used for the creation of various kinds of cellulose-focused aerogels and their properties, analytical techniques, and multiple functionalities in relation to textiles. This comprehensive analysis extensively covers the diverse strategies employed to enhance the multifunctionality of cellulose-based aerogels in the textiles industry. Additionally, we focused on the global market size of bio-derivative aerogels, companies in the industry producing goods, and prospects moving forward.

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Section: Characterization Methods Of Cellulose-based Aerogelsmentioning

confidence: 99%

Section: Characterization Methods Of Cellulose-based Aerogelsmentioning

confidence: 99%

Incorporation of Cellulose-Based Aerogels into Textile Structures

Sozcu,

Venkataraman,

Wiener

et al. 2023

Materials

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show abstract

“…Aerogels are mainly used as thermal protection materials for spacecraft, materials for preventing the impact and vibration of spacecraft during high-speed flight, and structural materials for manufacturing light aerospace spacecraft. 1–4 Although silica aerogels have excellent thermal insulation properties, their application is severely restricted by their poor mechanical properties and cumbersome drying process. 5–7 Therefore, polymer aerogels have garnered increasing attention because they have better mechanical properties, processability, and density than inorganic aerogels.…”

Section: Introductionmentioning

confidence: 99%

Lightweight polybenzoxazole aerogels with high compressive strength, ultralow dielectric constants, and excellent thermal stability

Zhang,

Liu,

Yang

et al. 2024

Polym. Chem.

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“…However, due to its easy combustion and thermal degradation characteristics, it has greatly limited its application. Hence, the development of cellulose films with excellent thermal stability and flame retardant effects is crucial for enhancing safety performance. − This study utilized two types of cellulose fibers (CF), namely, needle cellulose fiber (NCF) and broadleaf cellulose fiber (BCF), to prepare flame-retardant composite films. The molecular weights of these two materials are different, but the reaction principle in this experiment is not intrinsically different.…”

Section: Introductionmentioning

confidence: 99%

Flame-Retardant and Degradable Cellulose Micro/Nanofiber Films for Packaging Materials

Dong,

Geng,

Liu

et al. 2024

ACS Appl. Nano Mater.

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Cellulose, as the main structural component of plant cell walls, has gained widespread applications in many highend fields due to its outstanding physicochemical properties, such as renewability and biodegradability. To reduce reliance on virgin petro-based materials and construct sustainable, high-performance biobased structural materials, biodegradable cellulose materials have emerged as a crucial Frontier in research. However, its poor fire-resistant property strongly limits the practical application of cellulosics in many fields. Here, we design a biodegradable biobased composite film with a three-dimensional network structure by introducing alginate and calcium ions into cellulose micro-and nanofibers. Specially, sodium alginate is introduced into the network of the composite film and subsequently by crosslinking with calcium ions to enhance the flame retardancy of cellulose fibers film and improve the structural integrity of the film. As a result, the limiting oxygen index of NCF/SA-Ca reached 38%, with a reduction of 72.3% in the peak heat release rate. The limiting oxygen index of BCF/SA-Ca reached 35%, with a reduction of 66.6% in peak heat release rate. Furthermore, both materials exhibited a higher residual char in thermogravimetric analysis, indicating excellent flame-retardant properties. Therefore, this flame-retardant and biodegradable cellulose composite film can replace traditional membrane materials and gain wider applications in practical life, such as flame-retardant packaging materials.

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Ultra-light-weight, anti-flammable and water-proof cellulosic aerogels for thermal insulation applications

Cited by 25 publications

References 35 publications

Incorporation of Cellulose-Based Aerogels into Textile Structures

Incorporation of Cellulose-Based Aerogels into Textile Structures

Lightweight polybenzoxazole aerogels with high compressive strength, ultralow dielectric constants, and excellent thermal stability

Flame-Retardant and Degradable Cellulose Micro/Nanofiber Films for Packaging Materials

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