期刊:
INDUSTRIAL CROPS AND PRODUCTS,2025年223 ISSN:0926-6690
通讯作者:
Li, Yalan;Cheng, FC
作者机构:
[Huang, Houkai; Chen, Bowen; Cheng, Fangchao; Li, Yalan; Huang, Xiaolin; Tang, Zhiwei; Shi, Shenghong; Zhu, Weizhi] Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China.;[Wu, Yiqiang; Cheng, Fangchao] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
通讯机构:
[Li, YL; Cheng, FC ] G;Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China.;Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
摘要:
With the massive consumption of energy resources and increasingly severe environmental problems, the development of renewable, environmentally friendly, highly efficient energy conversion and storage devices has become a top priority. Here, a microstructure modulation strategy was proposed to fabricate the oriented regenerated cellulose (ORC) dielectric composites with outstanding mechanical and dielectric properties via a combination of dissolution, crosslinking, stretching, and hot-pressing techniques. ORC films with a stretch ratio of 100 % (ORC-100 film) exhibit a significant increase in displacement values (2.96 mu C/cm2), breakdown strength (404.04 MV/m), dielectric constant (14.37 at 1 kHz), and energy density (3.42 J/cm3 at 250 MV/m) as compared to the unstretched regenerated cellulose films. These enhancements are attributed to the anisotropic alignment of cellulose chains and the enhanced crystalline phase of cellulose II, both of which are significantly higher in ORC-100 film. This work offers a feasible and serviceable approach for the development of environmentally friendly cellulose dielectric composites with high performance.
摘要:
The dowel-bearing properties of a newly laminated flattened-bamboo (LFB) composite for engineering use was studied in this research by using the 5% bolt diameter offset method. The effects of specimen dimensions, bolt diameter, density, and bolt placed direction were included. Computed tomography (CT) and scanning electron microscope (SEM) were used to identify the failure type. The test results indicate that the parallel-to-grain dowel-bearing strength of LFB generally increased with an increasing density. When the bolt was placed along the LFB’s radial direction, the parallel-to-grain dowel-bearing strength approximately remained a constant (52 MPa) with the change of specimen dimensions and bolt diameter, while when the bolt was along the tangential direction, the dowel-bearing strength increased with the raising ratio of specimen thickness and bolt diameter. The first failure type was a crushing failure of bamboo fiber underneath the bolt, it happened when bolt diameter was small (12 mm and 14 mm) and placed along LFB’s radial direction. The second type was a splitting failure due to the lateral force generated by the bolt embedded into specimen, bamboo fiber splitting failure dominated for specimens with bolt along radial direction, while when bolt along tangential direction, glue layer splitting happened. The measured dowel-bearing strength was compared to the predictions obtained from equations in current wood specifications and articles. The results indicated that, except for the predicted values from the NDS equation (max error = 36%), which showed relatively reasonable agreement with the test values, the remaining predicted values exhibited discrepancies with the test values. To obtain proper predicted values, equations include density and ratio of specimen thickness and bolt diameter were proposed for calculation of LFB’s parallel-to-grain dowel-bearing strength.
摘要:
In chemi-mechanical pulping process, selective fiber separation strategies directly affect pulp property. The secondary wall (SW) separation strategy and middle lamella (ML) separation strategy expose more chemical structures from polysaccharides and lignin on the pulp fiber surface, respectively. Hydrogen-containing groups in these chemical structures generate characteristic spectral changes in response to water perturbation, which makes it possible for surface property analysis of pulp fibers based on near-infrared spectroscopy (NIR). Here, two-dimensional correlation spectroscopy (2DCOS) was obtained by the dynamic NIR spectra of pulp fibers with various equilibrium moisture content (EMC). The 2DCOS-NIR can provide richer structural and distributional information about hydrogen-containing groups which characterize the differences in surface chemical properties due to selective separation of the fibers. In synchronous map, the fibers separated at SW have significant water perturbation-induced spectral changes at the bands due to polysaccharides, and the fibers separated at ML have characteristic spectral changes at the bands due to hydrogen-containing groups from lignin. Furthermore, the 2DCOS spectral features can also accurately reflect the variation in the distribution of hydrogen bonding on the fiber surface under different refining conditions, which directly affects the strength properties of pulp fibers. The PLSR model based on 2DCOS spectral features exhibits excellent and robust predictive performance for internal bond strength with RMSEp of 7.17 J/m2, R of 0.9378 and RPD value of 4.11.
摘要:
This investigation evaluates the significance of thickness (B) and initial crack length -to -width ratio (alpha) on the fracture toughness of Laminated bamboo lumber (LBL) compact tension (CT) specimens under mode I fracture conditions. The digital image correlation (DIC) technique is employed to analyse the result, while the net section method is utilised to determine the critical strain energy release rate (GIc). The fracture mode observed in LBL is characterised as brittle fracture, and the critical stress intensity factor (KIc) of CT specimens achieved a maximum value of 25.58 MPa & sdot;mm1/2. The fracture energy, calculated by the net section method, was determined by analysing the crack extension length (ae) of the CT specimen obtained by the DIC technique. This study aims to establish the mathematical connection between GIc, ae, and critical load (PQ) in terms of the strain energy release rate context, which offers an innovative approach to analysing GIc data of CT specimens subjected to mode I fracture. The calculated value for GIc was determined to be 12.18 J/mm2.
摘要:
In this study, a novel hydrogel, O- cyclodextrin/carbon dots -grafted cellulose nanofibrils hydrogel ( O CCH), was fabricated for removal and fluorescence determination of levofloxacin (LEV). A comprehensive analysis was performed to characterize its physicochemical properties. Batch adsorption experiments were conducted, revealing that O CCH reached a maximum adsorption capacity of 1376.9 mg/g, consistent with both Langmuir and pseudo -second -order models, suggesting that the adsorption process of LEV on O CCH was primarily driven by chemical adsorption. The removal efficiency of O CCH was 99.2 % under the fixed conditions (pH: 6, initial concentration: 20 mg/L, contact time: 300 min, temperature: 25 degrees C). The removal efficiency of O CCH for LEV still achieved 97.3 % after five adsorption -desorption cycles. By using O CCH as a fluorescent probe for LEV, a fast and sensitive method was established with linear ranges of 1-120 mg/L and 0.2-1.0 mu g/L and a limit of detection (LOD) as low as 0.09 mu g/L. The viability of O CCH was estimated based on the economic analysis of the synthesis process and the removal of LEV, demonstrating that O CCH was more cost-effective than commercial activated carbon. This study provides a novel approach for preparing a promising antibiotic detection and adsorption material with the advantages of stability, and cost-effectiveness.
期刊:
Colloids and Surfaces A: Physicochemical and Engineering Aspects,2024年697 ISSN:0927-7757
通讯作者:
Shi, Shaohong;Cheng, FC;Wu, Yiqiang
作者机构:
[Chen, Boxi; Shi, Shaohong; Cheng, Fangchao; Cai, Yiyan; Fang, Haohang; Huang, Houkai; Sun, Jianping; Xie, Di] Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life cycle Safety, 100, Daxuedong Rd, Nanning 530004, Peoples R China.;[Li, Xin; Dai, Siyang; Yu, Qianqian] Hechi Univ, Coll Chem & Bioengn, Guangxi Key Lab Sericulture Ecol & Appl Intelligen, Hechi 546300, Peoples R China.;[Cheng, Fangchao; Wu, Yiqiang] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
通讯机构:
[Wu, YQ] C;[Shi, SH; Cheng, FC ] G;Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life cycle Safety, 100, Daxuedong Rd, Nanning 530004, Peoples R China.;Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
摘要:
Membrane filtration technology demonstrates excellent continuous processing capability in organic wastewater treated processes, which is usually applied in continuous industrial processes. However, it still faces a contradiction between membrane flux and treatment efficiency. In this study, a flexible wood -based photocatalytic membrane with high membrane flux and exceptional photofenton performance was developed via partial fragment wood components and uniform loading of multi -metal oxide nanocatalysts, which breaks mentioned contradiction. The homogeneous and efficient wood -based dual -function water filtration/photofenton system was established by leveraging the directional porous structure of wood in conjunction with the nanocatalysts while adjusting their ratios, enabling effective purification of highly concentrated mixed organic wastewater. Under one solar intensity and negative pressure filtration (0.03 MPa), the system treated a mixed solution containing Rhodamine B, phenol, and tetracycline at a concentration of 280 mg L -1 with the removal efficiencies of 100 %, 93.4 %, and 90.2 %, respectively, and the membrane flux could up to 315.3 Lm -2 h -1 within one hour. The membrane showed a good recycling performance, and the decay rates were all below 5 % after five cycles. This wood -based dual -function water filtration/photo-Fenton system provides a new approach for the continuous dynamic treatment of high -concentration organic wastewater on an industrial scale.
期刊:
Journal of Colloid and Interface Science,2024年679(Pt A):393-402 ISSN:0021-9797
通讯作者:
Hu, Dongying;Zheng, Yanjie;Cheng, Fangchao
作者机构:
[Wang, Zhiqi; Cheng, Fangchao; Zhong, Yu; Quan, Lingqi] State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China;[Wu, Yiqiang] College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;[Hu, Dongying] State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China. Electronic address: hdy@gxu.edu.cn;[Cheng, Jun] Guangxi Normal University for Nationalities, Chongzuo 532200, China;[Zheng, Yanjie] Guangxi Normal University for Nationalities, Chongzuo 532200, China. Electronic address: 20504875@qq.com
通讯机构:
[Cheng, Fangchao] C;[Hu, Dongying] S;[Zheng, Yanjie] G;State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China. Electronic address:;Guangxi Normal University for Nationalities, Chongzuo 532200, China. Electronic address:
摘要:
The rapid development of anti-counterfeiting technology has brought new challenges to the repeatability and stability of reversible fluorescence/photochromic switching hydrogels. To address this issue, a series of chemical cross-linked cellulose-based intelligent responsive hydrogels were synthesized by free-radical graft copolymerization in a hydrothermal process. This strategy allows for the creation of a chemical cross-linked three-dimensional structure that anchors photochromic ammonium molybdate and fluorescent carbon dots together, resulting in enhanced stability and mechanical properties. Especially, the tensile and compressive strength of hydrogel reached a maximum value of 280kPa and 560kPa, respectively, which far exceeds that of some reported hydrogels. The resultant hydrogels exhibited desired reversible fluorescence/photochromic switching, reversible printing and erasing of patterns, and information encryption/decryption. Notably, the change of photochromism from yellow to green can be realized, and the self-fading process can be shortened to 25min at 60°C instead of 6h at room temperature. More importantly, the fluorescence quenching phenomenon of the hydrogel occurs gradually after 2min of continuous irradiation, and it can be recovered by selective treatment with ethanol. Overall, this study provides a simple strategy for the preparation of environmentally friendly reversible fluorescence/photochromic switching cellulose-based hydrogels for information encryption.
关键词:
Flattened-bamboo composite;Embedment performance;Failure mechanisms;Finite element modelling
摘要:
This paper focused on a newly engineering use flattened-bamboo composite (FBC) and studied the effect of fiber orientation angle (0 degrees - 90 degrees, 15 degrees intervals) on FBC's embedment performance and failure modes by half hole test. The results indicated that with larger fiber orientation angle, both the embedment strength and initial stiffness gradually decreased (embedment strength: 52 26 MPa, initial stiffness: 27062 11149 kN/mm), and Hankinson's formula could effectively predict FBC's embedment strength with error less than f7 %. Combing the experimental phenomenon and scanning electron microscope (SEM) results, the failure modes of embedment specimens were classified. For angles of 0 degrees and 15 degrees, the failure mode was a mix of fiber crushing failure and split failure between fibers. For angles from 30 degrees to 60 degrees, the phenomenon of fiber being crushed became less obvious, only small cracks were witnessed around the half-hole area. For angles of 75 degrees and 90 degrees, the bamboo fiber compression failure perpendicular to fiber direction dominated, and two horizonal cracks happened on both sides of the specimen. A damaged constitutive model using continuum damage mechanics was proposed for simulating FBC's embedding failure modes, and the proposed model was verified by comparing with the experimental phenomenon.
摘要:
Fiber-shaped Zn-ion capacitors (FSZICs) have shown great potential in wearable electronics due to their long cycle life, high energy density, and good flexibility. Nevertheless, it is still a critical challenge to develop a conductive fiber with long size and high mechanical properties as the FSZIC cathode using sustainable and low-cost materials. Herein, regenerated cellulose (RC) -based conductive microfibers are prepared by a simple, continuous, and scalable wet spinning process. The 3D nanoporous networks of RC caused by physical self-cross-linking allow MXene and MnO(2) to be uniformly and firmly embedded. The rapid extrusion and limited drying result in the highly aligned structure of the fibers, endowing the hybrid fiber with an ultra-high tensile strength (145.83 Mpa) and Young's modulus (1672.11 Mpa). MXene/MnO(2)-RC-based FSZIC demonstrates a high specific capacitance of 110.01 mF cm(-3), an energy density of 22.0 mWh cm(-3) at 0.57 A cm(-3) and excellent cycling stability with 90.5% capacity retention after 5000cycles. This work would lead to a great potential of cellulose for application in next-generation green and wearable electronics.
期刊:
CHEMICAL ENGINEERING JOURNAL,2024年500 ISSN:1385-8947
通讯作者:
Zhao, Hui;Cheng, FC;Zhao, H;Mi, Y
作者机构:
[Wang, Zhiqi; Zhao, Hui; Cheng, Fangchao; Zhao, H; Zhong, Yu; Quan, Lingqi] Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life cycle Safety, Nanning 530004, Peoples R China.;[Wu, Yiqiang; Cheng, Fangchao] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;[Zhao, H; Zhao, Hui] Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China.;[Mi, Yan] State Ethn Affairs Commiss, Key Lab Chem & Engn Forest Prod, Nanning 530006, Peoples R China.;[Mi, Yan] Guangxi Minzu Univ, Guangxi Collaborat Innovat Ctr Chem & Engn Forest, Nanning 530006, Peoples R China.
通讯机构:
[Zhao, H ; Zhao, H; Cheng, FC ] G;[Mi, Y ] S;Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life cycle Safety, Nanning 530004, Peoples R China.;Guangxi Univ, Sch Light Ind & Food Engn, Nanning 530004, Peoples R China.;State Ethn Affairs Commiss, Key Lab Chem & Engn Forest Prod, Nanning 530006, Peoples R China.
关键词:
Hydrogels;Photochromic;Optical information display devices;Smart window
摘要:
The potential ability of photochromic hydrogel as smart response material is determined by its coloration and fading speed. However, it is still a huge challenge to improve both the coloration and fading speed simultaneously. This paper presents the successful development of robust hydrogels with fast photoresponse and waterdriven ultra-fast fading speed through the implementation of a dual-network preparation strategy. In the dualnetwork hydrogel, sodium tungstate contributed to its discoloration and crosslink. The obtained hydrogel exhibited fast photochromic response within 20 s under visible light irradiation. In addition, the photochromic response was achieved in 30 s under actual sunlight irradiation. Particularly, rapid fading of photochromic hydrogels was achieved by applying deionized water while leaving it naturally for 90 s. Furthermore, the simulated house experiments showed that the use of this hydrogel as smart glass could decrease the indoor temperature by about 5 degrees C. The photochromic hydrogel in this paper possesses excellent reversible repeatability, flexibility and foldability, and it exhibits promising potential for use in flexible information storage devices, visual displays and artificial intelligence systems, smart windows and other applications.
摘要:
In this work, we present a simple and effective approach to enhance the fire safety and anti-corrosion performance of wood by forming in-situ self-assembled amphiphilic Ag-PW nanospheres (NSP) at room temperature. The morphology and acid capacity of the NSP were optimized by changing the ratio of phosphotungstic acid (HPW) and silver nitrate. The Ag-PW NSP were successfully integrated into the bulk of the wood, resulting in a durable treatment with minimal leaching. Comprehensive characterization techniques, including FTIR, XPS, XRD, SEM, TEM, and nitrogen adsorption–desorption analysis, confirmed the in-situ formation of Ag-PW NSP in the wood. The treatment exhibited low-leaching properties with only 5.89% of Ag-PW1a leaching out. The treated wood demonstrated excellent flame-retardant (FR) properties, as evidenced by a limiting oxygen index value > 28% and easy passage of the UL-94 test, with the formation of a high-density char layer. The flammable pyrolysis products released during combustion were found to be significantly altered, with a change in the depolymerization route of conversion of LGO under acid conditions to HMF, which was verified by DFT calculations. The treated wood also exhibited outstanding anti-corrosion properties, with a mass loss rate of less than 1%, compared to at least 32.3% for bare wood after the anti-white or brown-rot fungus tests. Moreover, the treated wood samples maintained their excellent FR properties even after leaching. Our study provides valuable insights for the rational design of nano-material additives for wood protection, thereby improving the usage of wood resources while mitigating health and environmental hazards.
作者机构:
[万才超; 柴亚玲; 魏松; 程文杰; 吴义强] College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
通讯机构:
[Mizi Fan; Yiqiang Wu; Weisheng Sun; Xi Guo] C;College of Engineering, Design and Physical Sciences, Brunel University London, UK<&wdkj&>College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, China<&wdkj&>College of Chemistry and Materials Engineering, Zhejiang Agricultural and Forestry University, Hangzhou, China
关键词:
Biomimetic bone tissue structure;Cellulose nanofibril;High strength;Phase change materials;Thermal energy storage
期刊:
Green Chemistry,2023年25(9):3322-3353 ISSN:1463-9262
通讯作者:
Yiqiang Wu
作者机构:
[Wei, Song; Wu, Yiqiang; Wan, Caichao] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
通讯机构:
[Yiqiang Wu] C;College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
摘要:
In the last few years, renewable, inexpensive, biocompatible, and biodegradable wood and lignocellulose materials have triggered considerable research interest for application in various functional devices. However, there is still a lack of a new perspective to deeply understand the structure–property–function relationships of micro-/nanostructures and components of natural wood, so as to explore the potential of wood assembly of nano-energy materials with different dimensions. Herein, the recent progresses in the design and construction of free-standing supercapacitor (SC) electrodes containing wood-derived materials are reviewed. We begin with an illustrated introduction to the hierarchical structure and characteristics of natural wood with a “top–down” view, which includes the cell walls, cellulose microfibers, nanocellulose, and cellulose supramolecules. Next, the fabrication, structure, and properties of lignocellulose are highlighted. We focus on the structure–property–function relationships between the hierarchical micro- and nanoscale structure of wood and electroactive materials. The focus then turns to a summary of the recent advances in wood-based free-standing SC electrodes with a unique point that is ever out of the spotlight, including one-dimensional integrated fibers, two-dimensional flexible films/papers, three-dimensional porous hydrogels/aerogels, and ultra-thick electrodes. Finally, we put forward our perspectives on the challenges to further promoting the development of this emerging field in the future.
期刊:
Colloids and Surfaces A: Physicochemical and Engineering Aspects,2023年674:131985 ISSN:0927-7757
通讯作者:
He, Mei;Cheng, FC;Zhu, YQ
作者机构:
[Li, Wenjing; He, Mei; Sun, Jianping; Guan, Jilun; Cheng, Fangchao; Fang, Huayang; He, M; Zhu, Weizhi] Guangxi Univ, State Key Lab Featured Met Mat & Life Cycle Safety, Sch Resources Environm & Mat, Nanning 530004, Peoples R China.;[Wu, Yiqiang; Cheng, Fangchao] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.;[Zhu, YQ; Zhu, Yanqiu] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, England.
通讯机构:
[He, M; Cheng, FC ] G;[Zhu, YQ ] U;Guangxi Univ, State Key Lab Featured Met Mat & Life Cycle Safety, Sch Resources Environm & Mat, Nanning 530004, Peoples R China.;Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QF, England.
摘要:
The dissolution of cellulose endows the green and environmentally friendly cellulosic material with a wide range of processing properties, further enhancing its advantages as a basic material. However, its unsatisfactory mechanical performance and functionality severely limited its practical application. Herein, a facile molecular orientation strategy was developed to orient the aggregated structure of the dissolved cellulose in the lithium chloride/N,N-dimethylacetamide system and to obtain high-performance films. During the preparation process, cross-linking, stretching, and hot pressing were utilized to anchor, orient, and fix the orientated structure of the cellulose molecular chains. Morphological analysis confirmed that the present process can produce an oriented microstructure of cellulose films with remarkable mechanical and optical properties. The optimal film obtained with a stretching ratio of 50 % exhibited a high mechanical strength of 145.9 MPa, and a high light transmittance of 86.2 %. Compared to the unstretched sample, the stretched films showed higher thermal stability, much higher mechanical strength (up to 169 % of the pure cellulose film), and stronger light polarization and scattering response. The present strategy, based on the regulation of cellulose aggregate structure, provides a promising approach for the development of advanced regenerated cellulose materials with excellent performance and multifunctional properties.
期刊:
Chemical Engineering Journal,2023年470:144221 ISSN:1385-8947
通讯作者:
Wu, YQ
作者机构:
[Wu, Yiqiang; Yuan, Yuan; Lin, Xianxian; Zhang, Zhen; Wang, Hang; Zheng, Long] Cent South Univ Forestry & Technol, Coll Mat Sci & Technol, Changsha, Peoples R China.;[Qiu, Chendong; Guo, Xi; Sun, Weisheng] Zhejiang Agr & Forestry Univ, Coll Chem & Mat Engn, Hangzhou, Peoples R China.
通讯机构:
[Wu, YQ ] C;Cent South Univ Forestry & Technol, Coll Mat Sci & Technol, Changsha, Peoples R China.
关键词:
Leaf transpiration;Reversible fire retardancy;Temperature regulation;Phase -change hydrogel;Cellulose fiber
摘要:
The demand for advanced fire-retardant wearable materials has increased with a rise in fire disasters in modern society. However, traditional fabrics have some drawbacks including non-temperature regulation, non-recyclability and contaminated products. Here, inspired by leaf transpiration, we prepared a reversibly flame-retardant thermal regulation material (LPWH). Wood cellulose skeleton is expected to be a reinforced mechanical scaffold by imitating the role of leaf vein for water collection and transportation. In parallel, to mimic the mesophyll cells around leaf vein, a hydrophilic and porous phase-change hydrogel aggregation is prepared by anchoring polyethyleneglycoldiacrylate-co-sodium vinylsulfonate copolymer on cellulose fibers and subsequent in-situ assembly of sodium alginate. This precise combination creates an artificial transpiration tissue, achieving effective heat dissipation and temperature regulation via water transpiration and phase-change behavior of hydrogel aggregation. LPWH shows a longer ignited time of 150 s (71% extension), a lower total smoke release of 22.3 m2/m2 (76% reduction), together with an ultralow fire growth index of 2.4 compared to commercial fire-retardant cotton fabric. Moreover, reversible fire retardancy (30 cycles) and great mechanical property (351 times higher than pure phase-change hydrogel) are demonstrated, suggesting LPWH can be the next generation of the pollution-free, recyclable temperature-regulated fire-retardant fireproof suit.
期刊:
Construction and Building Materials,2023年366:130240 ISSN:0950-0618
通讯作者:
Yang, Shoulu(yangshoulucsuft@163.com)
作者机构:
[Ding, Fangjun; Liu, Zhu; Yang, Shoulu; Ji, Ning; Wang, Zhongwei] Guizhou Acad Forestry, Guiyang 550005, Peoples R China.;[Wu, Yiqiang; Yang, Shoulu] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410000, Peoples R China.
通讯机构:
[Shoulu Yang; Fangjun Ding] G;[Yiqiang Wu] C;Guizhou Academy of Forestry, Guiyang 550005, PR China<&wdkj&>College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410000, PR China<&wdkj&>Guizhou Academy of Forestry, Guiyang 550005, PR China<&wdkj&>College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410000, PR China
期刊:
Journal of Materials Science,2023年58(14):6057-6075 ISSN:0022-2461
通讯作者:
Caichao Wan<&wdkj&>Yiqiang Wu
作者机构:
[Wu, Yiqiang; Li, Xuanze; Cheng, Wenjie; Wan, Caichao; Chai, Yaling] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.
通讯机构:
[Caichao Wan; Yiqiang Wu] C;College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha, People’s Republic of China<&wdkj&>College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha, People’s Republic of China
关键词:
Biomass;Conversion efficiency;Costs;Solar energy;Carbon material;Cell-be;Cell/B.E;Cell/BE;Derived carbons;Dye- sensitized solar cells;Electric energies;Environmental friendliness;High-low;Higher efficiency;Dye-sensitized solar cells