All cellulose composites prepared by hydroxyethyl cellulose and cellulose nanocrystals through the crosslink of polyisocyanate

Lu, Zhaoqing; Huang, Jizhen; Songfeng, E; Li, Jiaoyang; Si, Lianmeng; Yao, Cheng; Jia, Fengfeng; Zhang, Meiyun

doi:10.1016/j.carbpol.2020.116919

Cited by 51 publications

(29 citation statements)

References 45 publications

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“…HEC/BN10/500/S particles are smaller than HEC/BN10 and HEC/BN/10/300/S, but they present a deeper color, which may be a sign of the oxidation of HEC. In Figure S5b, HEC, HEC/BN10, and HEC/BN10/300/S have a typical (110) cellulose diffraction peak at 20.3°. HEC/BN10/500/S, on the other hand, lacks a peak at 20.3°, which could be due to the partial decomposition of the HEC crystalline region caused by high-energy ball milling in the solid state.…”

Section: Resultsmentioning

confidence: 99%

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Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Huang

Songfeng

et al. 2021

ACS Appl. Nano Mater.

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Boron nitride nanosheets (BNNS) exfoliated by physical or chemical methods frequently exhibit poor dispersity in common solvents due to incomplete exfoliation and a low degree of functionalization, which has severely impacted BNNS application performances as polymer and lubricant additives. In this work, we mechanically exfoliated the bulk boron nitride into nanosheets through a ball-milling method by adopting the viscous hydroxyethyl cellulose (HEC) solution as a medium. Because of the abundant hydroxyls and strong hydrogen bonding interactions with BNNS, the HEC can not only serve as an intercalator and a protective agent of the BNNS during ball milling but can also benefit the stable dispersion of the fabricated HEC/BNNS mixture in water. The HEC/BNNS aqueous dispersion obtained by directly pouring deionized water into the ball-milled product is easy to form a two-dimensional film via the solution-casting method. Because of the good exfoliation and dispersion of the BNNS in the HEC matrix, the HEC/BNNS films have high mechanical strength and thermal conductivity and have the potential to be used as thermal interface materials.

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Section: Resultsmentioning

confidence: 99%

“…XRD patterns exhibit two peaks centered at 9.4 and 21.0°from 5 to 25°, corresponding to the (−110) and (110) planes of the HEC, respectively. 40 HEC/BNNS films have the typical BNNS peak at 26.7°, which corresponds to the (002) plane. 44 The intensities of the diffraction peaks increase as the BNNS content increases.…”

Section: Resultsmentioning

confidence: 99%

Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Huang

Songfeng

et al. 2021

ACS Appl. Nano Mater.

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“…Carboxylate and amine groups are considered to be good chelating agents, which can enhance the ability of catalysis. [101,102] Succinylation reaction is considered to be another strategy for the modification of nanocelluloses. Sheikhi et al showed that cellulose nanocrystals obtained by the treatment of periodate/chlorite oxidation can demonstrate a maximum removal ability for Cu 2+ (185 mg g −1 ) at pH 4.…”

Section: Uptake Of Heavy Metal Speciesmentioning

confidence: 99%

Chemistry and Nanotechnology‐Oriented Strategies toward Nanocellulose for Human Water Treatment

Zha

Shi

et al. 2022

Advanced Sustainable Systems

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“…It would be interesting to understand the mechanism of the reactive dye and four crosslinking agents with cotton cellulose, and analyze the effects of changes in hydroxyl contents in the finishing and dyeing process (Figure 4a-e) [13,17,18]. From the combination mechanism that dyeing and anti-wrinkle finishing agents have a competitive relationship with the hydroxyl groups of cellulose, and the hydroxyl content of cellulose was reduced after the combination [24][25][26][27]. In Figure 4a, the reactive groups (halogen atom-chlorine) of the reactive dye undergoes the covalent bonding reaction with the hydroxyl groups of the cellulose, which reduces the hydroxyl content of the fiber.…”

Section: Anti-wrinkle Finishing and Dyeing Of The Fabricsmentioning

confidence: 99%

Improving the Dyeability and Anti-Wrinkle Properties of Cotton Fabric via Oxidized Raffinose

Lou

Zhang²,

Wang

et al. 2021

Applied Sciences

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In the anti-wrinkle finishing of cotton fabrics, the decreased dyeability of the finished fabrics has always been a difficult problem. A new anti-wrinkle finishing mode was developed to solve this problem by changing the finishing sequence of fabric dyeing and anti-wrinkle. In this research, the partial oxidization of raffinose with sodium periodate generated multiple aldehydes, which acted as multifunctional cross-linkers and endowed cotton fabrics with anti-wrinkle and hydrophilic properties. The structural characteristics of oxyRa were analyzed by FTIR and 13C-NMR. Through response surface methodology (RSM), the finishing model of oxyRa was established from the influencing factors of catalyst concentration, pH, curing temperature and time, and the optimized finishing process: the catalyst concentration was 20.12 g/L, pH was 4.32, curing temperature was 150 °C and curing time was 120 s. Under this condition, the predicted wrinkle recovery angle (WRA) of the finished fabric was up to 249.76°, Tensile strength (TS) was 75.62%, Whiteness index (WI) was 70.69. Importantly, comparing the anti-wrinkle and dyeing performance of the fabric with anti-wrinkle and then dyeing and anti-wrinkle after dyeing, the oxyRa-treated fabrics showed better dyeing properties compared with previously reported dimethyldihydroxyethylene urea (DMDHEU), glutaraldehyde (GA), and 1,2,3,4-butanetetracarboxylic acid (BTCA). Analysis of the combined mechanism of different finishing agents and cellulose, demonstrated the reason why oxyRa can be used to change the order of dyeing and anti-wrinkle finishing.

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All cellulose composites prepared by hydroxyethyl cellulose and cellulose nanocrystals through the crosslink of polyisocyanate

Cited by 51 publications

References 45 publications

Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Chemistry and Nanotechnology‐Oriented Strategies toward Nanocellulose for Human Water Treatment

Improving the Dyeability and Anti-Wrinkle Properties of Cotton Fabric via Oxidized Raffinose

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