Direct ink writing of polyimide/bacterial cellulose composite aerogel for thermal insulation

Ma, Zhuocheng; Xue, Tiantian; Wali, Qamar; Miao, Yue‐E; Fan, Wei; Liu, Tianxi

doi:10.1016/j.coco.2023.101528

Cited by 26 publications

(10 citation statements)

References 48 publications

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“…For another, the TPU molecules possessing much −COO bonds have higher mechanical properties . As shown in Table S2, − the compressive strength of PI-TPUs was much greater than that of other composite aerogels. A comparison with the mechanical strength of aerogel materials specialized for industrial production can further highlight the superiority of PI-TPUs.…”

Section: Resultsmentioning

confidence: 97%

Surface Modification of Polyimide Aerogel by Thermoplastic Polyurethane for Enhanced Mechanical Strength and Thermal Insulation Performance

Zhao,

Su,

et al. 2024

ACS Appl. Mater. Interfaces

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Polyimide (PI) aerogel is a good thermal insulation material with the highest temperature resistance in practical application. But the mechanical strength of PI aerogels prepared by freeze-drying or thermoimide methods is weak. In this research, TPU was selected as an aging solution to solve the problem of the low mechanical strength of PI aerogel prepared by the freeze-drying method. Previous work has certified that the coupling of PI and thermoplastic polyurethane (TPU) can enhance the mechanical strength of PI aerogel to a certain extent due to the flexibility of TPU. But excessive TPU will change the PI structure in the cross-linking process and decrease the mechanical strength of the aerogel. Thus, a new kind of PI gel modification method was provided by using TPU as an aging solution, and the mechanical strength of PI aerogel is improved to 3.06 MPa. Furthermore, the shrinkage, specific surface area, waterproof angle, and thermal conductivity all show good performance, thus enabling PI aerogel to be used in many aspects. Specially, the method is simple and can be used to prepare some other high-strength aerogels.

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Section: Resultsmentioning

confidence: 97%

Surface Modification of Polyimide Aerogel by Thermoplastic Polyurethane for Enhanced Mechanical Strength and Thermal Insulation Performance

Zhao,

Su,

et al. 2024

ACS Appl. Mater. Interfaces

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“…h–j) Photographs for 3D printed aerogels of: h) graphene, [ 360 ] i) silica, [ 361 ] and j) carbon [ 362 ] aerogels. k–p) SEM imagess for 3D‐printed: k) CNF, [ 363 ] l) silica, [ 361 ] m) carbon, [ 362 ] n) graphene, [ 360 ] o) polyimide, [ 364 ] and p) MXene [ 365 ] aerogels. q–s) Photographs for: q) polyimide, [ 366 ] r) Kevlar, [ 367 ] and s) SF‐GO [ 368 ] aerogel fibers.…”

Section: New Trends In the Multiscalability Of Aerogels And Future Pe...mentioning

confidence: 99%

mentioning

confidence: 99%

Mechanically Strengthened Aerogels through Multiscale, Multicompositional, and Multidimensional Approaches: A Review

Parale,

Kim,

Choi

et al. 2024

Advanced Materials

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In recent decades, aerogels have attracted tremendous attention in academia and industries as a lightweight and porous multifunctional nanomaterial. Despite their wide application range, their limited mechanical durability hinders their processing and operation, particularly in application requiring complex physical structures. “Mechanically strengthened aerogels” have emerged as the potential solution to address this drawback. Since the first report on aerogels in 1931, various modified synthesis processes have been introduced to enhance the mechanical strength of aerogels in the last decade, further advancing their multifunctional scope. This review summarizes the state‐of‐the‐art developments of mechanically strengthened aerogels through multicompositional and multidimensional approaches in the past 10 years. Additionally, new trends and future technologies for the commercialization of aerogels as much as plastic is discussed in the final section.This article is protected by copyright. All rights reserved

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“…To address these challenges of achieving the requisite rheology for DIW printing, a variety of rheology-modifying additives have been incorporated into sols, including cellulose nanocrystals, 83 graphene, 84 multi-walled carbon nanotubes, 84 bacterial cellulose, 85 fumed silica, 86 and silica aerogel particles. 87 Although additives may be useful for imparting additional functionality, they can also impact the desirable properties of the aerogel, modifying the porosity, density, and optical transparency compared to the pure aerogel.…”

Section: Introductionmentioning

confidence: 99%

Direct ink writing of polyimide aerogels for battery thermal mitigation

Cipriani,

Dornbusch,

Vivod

et al. 2024

RSC Appl. Polym.

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Direct ink writing of polyimide/bacterial cellulose composite aerogel for thermal insulation

Cited by 26 publications

References 48 publications

Surface Modification of Polyimide Aerogel by Thermoplastic Polyurethane for Enhanced Mechanical Strength and Thermal Insulation Performance

Surface Modification of Polyimide Aerogel by Thermoplastic Polyurethane for Enhanced Mechanical Strength and Thermal Insulation Performance

Mechanically Strengthened Aerogels through Multiscale, Multicompositional, and Multidimensional Approaches: A Review

Direct ink writing of polyimide aerogels for battery thermal mitigation

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