FIBERS AND POLYMERS
·
2024
·Vol. 25
·期 7
·2669-2682
·
IF 2.2
Luo Laipeng,Ding Chenkun,Zhu Qinting,Liu Lei,Wang Ping,Wang Qiang,Yu Yuanyuan
Untreated natural cotton fabrics are hydrophobic due to the high content of pectin and waxes, and the fabrics need to improve the wettability by scouring for the demands of the subsequent processing such as dyeing and finishing. In this study, a new scouring method for cotton fabrics was developed by pectin hydrolase combined with Fenton system (Fe 2+ /H 2 O 2 ). The mechanism of pectin degradation by pectinase combined with Fe 2+ /H 2 O 2 was investigated. The results showed that α-1,4-glycosidic bonds of water-soluble pectin could be degraded more efficiently by pectinase hydrolysis and Fe 2+ /H 2 O 2 oxidation. The fabrics scoured with pectinase → Fe 2+ /H 2 O 2 had less wetting time (4.25 s) and higher vertical wicking height (9.80 cm) compared to the fabrics treated with pectinase alone (> 120 s, 5.15 cm). The results of bleaching and dyeing experiments indicated that the whiteness and dyeing properties of the fabrics were not negatively affected by pectinase → Fe 2+ /H 2 O 2 treatment, and the strength loss of the fabrics (11.79%) was lower than that of the fabrics with conventional NaOH treatment (20.16%). The results of the experiments in the pilot-scale machine showed that various performance indicators of the fabrics scoured by pectinase → Fe 2+ /H 2 O 2 reached the level of the conventional NaOH treatment, which demonstrated the possibility for practical application of pectinase → Fe 2+ /H 2 O 2 scouring. The cotton fabric scouring using pectinase → Fe 2+ /H 2 O 2 is an effective and feasible new method with advantages such as environmental friendliness, mild treatment conditions, and good treatment effect.
研究领域:
纺织科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 22
·4048
·
IF 5.719
Wenju Zhu,Qing Wang,Mingyang Yang,Minjing Li,Chunming Zheng,Dongxiang Li,Xiaohan Zhang,Bowen Cheng,Zhao Dai
In recent years, we have witnessed numerous indoor fires caused by the flammable properties of cotton. Flame-retardant cotton deserves our attention. A novel boric acid and diethylenetriaminepenta (methylene-phosphonic acid) (DTPMPA) ammonium salt-based chelating coordination flame retardant (BDA) was successfully prepared for cotton fabrics, and a related retardant mechanism with ion transfer was investigated. BDA can form a stable chemical and coordination bond on the surface of cotton fibers by a simple three-curing finishing process. The limiting oxygen index (LOI) value of BDA-90 increased to 36.1%, and the LOI value of cotton fabric became 30.3% after 50 laundering cycles (LCs) and exhibited excellent durable flame retardancy. Fourier-transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) methods were used to observe the bonding mode and morphology of BDA on cotton fibers. A synergistic flame-retardant mechanism of condensed and gas phases was concluded from thermogravimetry (TG), cone calorimeter tests, and TG-FTIR. The test results of whiteness and tensile strength showed that the physical properties of BDA-treated cotton fabric were well maintained.Keywords:cotton;flame retardant;thermal stability;DTPMPA;group synergistic
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Physics
·
2020
·
IF 10.443
T. Zhang,H. Yu,J. Li,H. Song,S. Wang,Z. Zhang,S. Chen
Water pollution by pathogenic bacteria is a major threat to human health, and less-than-ideal disinfection and antimicrobial strategies have been developed to address waterborne pathogens. A green light–triggered photocatalytic antimicrobial rose bengal (RB)–modified cotton fabric (CF) (RB-CF) was prepared for wastewater disinfection by covalently binding RB to a CF surface. The antimicrobial rates of RB-CF against gram-positive Staphylococcus aureus and gram-negative Escherichia coli were both greater than 99.99% due to the generation of singlet oxygen that inactivates microbes under green light irradiation. Most importantly, RB-CF exhibited high stability, negligible cytotoxicity, and no release of free RB during the photocatalytic process, which was the key to its long-term antimicrobial activity and use security. Its long-term antimicrobial activity was further verified by the repeated photocatalytic disinfection; more than 99.99% of bacteria were inactivated even after five cycles. Therefore, this work may offer a potential avenue to develop low-cost, non-toxic, and durable antimicrobial fabrics with great potential for industrial and health-care applications, including but not limited to water purification , wastewater disinfection, masks, and protective clothing.
研究领域:
环境科学
·
微生物学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2016
·
IF 3.449
Longyun Hao,Rui Wang,Kuanjun Fang,Yuqing Cai
The cotton samples were treated by chitosan solution at acidic condition to modify their dyeing properties to anionic coloring materials. By fluorescence spectrum together with FTIR, XRD and TGA analysis, it was concluded that the chitosan molecules could spontaneous transfer from solution onto cotton surface yet would not influence its internal structure. In order to color the chitosan-treated cotton, an anionic polystyrene-encapsulated copper phthalocyanine (CuPc) pigment was prepared in a miniemulsion process. The full encapsulation of nano-pigment could be directly observed by TEM . The encapsulation would not alter the crystal structure and color properties of CuPc while could make the nano-pigment more stable against centrifuge and temperature variation. Finally, the dyeing properties of this encapsulated nano-pigment on chitosan-treated cotton samples were studied. It was indicated the chitosan molecules on cotton had great capability to improve the uptake of encapsulated nano-pigment mainly due to the accessible amino groups introduced.
研究领域:
材料科学
·
纺织工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Coatings Technology and Research
·
2024
·
IF 2.3
Cui Congcong,Chen Di,Mao Linhan,Xiao Yanwen,Huang Qiaoyu,Chen Zhaoxia,Qi Xiaoyun,Zhang Yuhong
The frequent occurrence of oil spills in recent years has led to serious contamination of water resources, and materials with superhydrophobic surface properties have attracted much attention for crude oil recovery and water contamination remediation. However, the fragile robustness of superhydrophobic materials greatly hinders their practical applications. Herein, we prepared the robust, photocatalytic superhydrophobic material of SH-ZnO-PDMS@fabric by a simple two-step immersion method. Zinc oxide nanoparticles (ZnO NPs) provided the rough surface structure, and fluorine-free dodecyltrimethoxysilane (DTMS) provided the low surface energy. Polydimethylsiloxane (PDMS) was introduced as a binder to strengthen the force between the nanoparticles and the fabric. The cotton fabric showed excellent superhydrophobicity with a water contact angle (WCA) range of 146.9–156.6°. The methylene blue (MB) in water was basically degraded after 12 h of exposure to UV lamp, manifesting that the cotton fabric had excellent photocatalytic property. The cotton fabric also showed excellent self-cleaning and antifouling properties. Importantly, SH-ZnO-PDMS@fabric maintained superhydrophobic properties after mechanical abrasion, ultrasonic washing, UV irradiation, and acid/alkali immersion. The prepared superhydrophobic materials can be repeatedly used to separate various oil–water mixtures due to their superhydrophobic and recyclable properties. This versatile, efficient, and simple strategy has good application prospects in water pollution remediation and oily wastewater treatment.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Xin Zhong,Yuming Wu,Pu Zhang,Yibing Chen,Yongshuang Cai,Weiming Wang,Xue Min,Jun Xiong,Ming Li
Interfacial solar steam production (ISSP) is an attractive technique for extracting freshwater from seawater. However, significant efforts have been focused on designing solar evaporators with delicate structures to achieve excellent evaporation rates and steady desalination performance, which result in sophisticated processes and high costs that inhibit their practical application. Here, a cost-effective turnover polypyrrole decorated cotton fabric (PPy-CF) based solar evaporator was designed by sewing two identical pieces of PPy-CF photothermal material to the top and bottom of polyethylene foam (PF). The polyester fiber pillar (PFP) inserted into the PF incorporates vertical water-transporting channels to pump water into the PPy-CF efficiently. The heat dissipation of the PPy-CF was minimized by adjusting the number of PFP. The appropriate water supplied by the PFP water transporter enables the PPy-CF-based solar evaporator to attain an excellent evaporation rate of 1.56 kg m −2 h −1 and a remarkable photothermal efficiency of 90.45% under 1-solar intensity. Notably, the sufficient water provided by the PFP water transporter allows the PPy-CF-based solar evaporator to achieve a steady desalination performance of 8 h, and the evaporation rate maintains around 1.31 kg m −2 h −1 . Moreover, this solar evaporator can be self-cleaning by turning it over. Outdoor cycle experiments demonstrated that a 1 m 2 PPy-CF-based solar evaporator could produce approximately 6 kg of freshwater within 10 h. Designing a 1 m 2 this turnover solar evaporator costs about 1 dollar. The cost-effectiveness, simplicity in design, self-cleaning ability, and steady desalination performance make the turnover PPy-CF-based solar evaporator a promising solution to alleviate freshwater shortages.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 72
·67771-67777
·
IF 3.289
Ziya Yu,Yanfeng Gao,Xue Di,Hongjie Luo
Currently, indoor heating technology supports people's comfortable working and living conditions, but a large portion of energy is wasted on heating empty space. Target-selective heating can focus energy on specific objects, thus achieving high efficiency at a low cost. Here, we report a personal thermal management cloth that uses a coating of sliver nanowire (AgNW)/polydopamine nanocomposite; the cotton was modified with polydopamine to enhance the adhesive ability of AgNWs through intermolecular cross-linking. The AgNW/polydopamine cloth (ADNC) not only highly reflects middle-to-far infrared radiation from the human body (the average reflectance is up to 86%, approximately 66 times higher than normal cloth), but it also allows Joule heating with a quick thermal response (1 min, from 22 °C to 40 °C). Additionally, the AgNW/polydopamine cloth is durable and washable, making it suitable for a personal thermal management cloth.
研究领域:
材料科学
·
纳米技术
·
能源工程
✓ 已验证
DOI
高影响因子
Nano Energy
·
2022
·
IF 19.069
Jiacheng Fan,Mengmeng Yuan,Libo Wang,Qixun Xia,Haiwu Zheng,Aiguo Zhou
In this work, Ti 3 C 2 MXene supported by cotton fabric was used as electrode layer to construct a novel triboelectric nanogenerator (TENG) as self-powered flexible sensors. The electrode layer was made by immersing cotton fabric in the mixing suspension of Ti 3 C 2 MXene and cellulose nanofibers (CNFs). In the electrode layer, Ti 3 C 2 MXene provides the electrical conductivity and electrical negativity. The fabric substrate provides the strength and flexibility of the electrode layer. The MXene on the surface of electrode layer can lose electrons if it frictionally contacts the friction layer of TENG, silicone rubber. The TENG can produce open-circuit voltage up to 400 V in single-electrode mode during the press-release cycles of a human’s palm. The harvested energy can directly power 32 green light emitting diodes connected in series and charge capacitors. The TENG can sense the mass of touched steel object (2–200 g) with good repeatability and linear relationship. The TENG can be stretched up to 100 % of the original length and can produce different voltage signals according to the bending/folding angles. The TENG exhibits excellent flexibility and sensing performance to be applied as self-powered flexible sensors to monitor various physiological movements of the human body.
研究领域:
材料科学
·
能源技术
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Jing-Yi Wang,Ze-Miao Xiong,Li Guo,Yun-Fei Zhang,Fang Zhang,Fei-Peng Du
The development of simple, low-cost, and efficient oil/water separation membranes is still a major challenge in the field of wastewater treatment. In this study, an oil/water separation membrane is prepared based on low-cost cotton cloth (CF) through a simple solution soaking treatment without using organic solvents . Pristine CF is treated first with concentrated alkali and then chemically grafted by sodium methyl silicate (SMS) onto the surface to obtain oil/water separation membrane (SMS-O-CF). This process not only increases the roughness of the CF but also endows the surface with superhydrophobicity due to the outward extension of methyl groups, resulting in a water contact angle (WCA) of 155° and good self-cleaning ability. The SMS-O-CF achieves efficient separation for various oil/water mixtures and maintains a separation efficiency up to 96 % and a flux of over 11,557 L·m −2 ·h −1 after 220 cycles under neutral conditions. Moreover, the modified CF also exhibits excellent acid/alkaline resistance and wear resistance. Regardless of the 12 h acid/base immersion, 100 min water wash, or 200-cycle mechanical abrasion, SMS-O-CF still exhibits high flux and separation efficiency. Raw material cost for preparing SMS-O-CF is as low as 1.0 dollar/m 2 . The preparation of SMS-O-CF has provided a green manufacturing method for developing low-cost and efficient oil–water separation membranes.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
FIBERS AND POLYMERS
·
2018
·Vol. 19
·期 9
·1898-1907
·
IF 1.353
Yu Deyou,Wu Minghua,Lin Junxiong,Zhu Jintao
Conventional cotton bleaching is highly energy-intensive, water-dependent, and textile-damaging. The technologies currently used to achieve low-temperature bleaching always include a conflict between effectiveness and cost. This study represents an economically efficient process for cotton bleaching with H 2 O 2 at low temperature. A novel system that couples Cu 2+ with HCO
− 3
, has been developed to activate cotton bleaching. Factors that influence the bleaching performance were investigated, including the bleaching temperature and initial concentrations of the components (H 2 O 2 , NaHCO 3 and Cu 2+ ). The experimental results indicated that the Cu 2+ -HCO
− 3
/H 2 O 2 system had a lower operating cost and higher bleaching efficiency than conventional and TAED-activated systems. Additionally, the bleaching bath exhibited excellent reusability, further strengthening its feasibility for industrial applications. The results of HO• scavenging and Cu 2+ monitoring experiments implied that the bleaching active species might be the Cu(III) species rather than HO•. This novel system provides a simple, effective, and cost-efficient method for practical bleaching.
研究领域:
纺织科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Industrial Textiles
·
2021
·
IF 3.732
Xueyan Bian,Jiangtao Xu,Yi Pu,Jing Yang,Ka-lam Chiu,Shouxiang Jiang
Surface enhanced Raman scattering (SERS) has proven to be increasingly valuable as an analytical tool since this phenomenon was first observed in 1973. However, challenges still exist to ensure their ability to access targeted analytes and adequate levels of sensitivity to them on irregular surfaces. Herein, silver (Ag) nanoparticles are deposited onto cotton fabric through magnetron sputtering to develop a flexible and ultrasensitive SERS-active substrate. To obtain a better enhancement effect, Ag nanoparticles of different sizes are produced by controlling the argon flow rate and the sputtering time. The finite-difference time-domain (FDTD) method and Raman mapping are used to explain the process behind Raman signal enhancement. The cotton fabric sample with Ag nanoparticles deposited at an argon flow rate of 200 sccm (labelled as AC-200) shows a high enhancement factor (EF) of 104 with a Methylene blue (MB) solution of 10−3 M, stability with a related standard deviation (RSD) of 1.03%, excellent reproducibility with an RSD of 1.92% and high sensitivity with 10−9 M of MB solution. Therefore, AC-200 demonstrates exceptional SERS signal reproducibility and stability for different types of chemical analytes and has the potential to be used in future practical applications.
研究领域:
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
TENSIDE SURFACTANTS DETERGENTS
·
2022
·Vol. 59
·期 3
·221-230
·
IF 1.058
Fengli Gong,Hong Xu,Jinxiang Dong
Sodium oxalate (Na 2 C 2 O 4 ) is an excellent phosphorus-free agent, but in sodium oxalate-containing detergents with sodium dodecylbenzene sulfonate (SDBS) and sodium carboxymethyl cellulose (CMC), significant ash deposition occurs on cotton fabrics. SDBS is the main anionic surfactant in modern detergents and cotton fiber is the most commonly used textile fiber. In this study, sodium lignosulfonate (LS) was investigated for its ability to prevent redeposition in SDBS-Na 2 C 2 O 4 -CMC-LS formulations. The effects of LS on ash content, whiteness, optimum washing temperature, calcium oxalate morphology, zeta potential and surface tension were carefully analyzed. The results showed that the addition of LS significantly improved the prevention of ash deposits on cotton fibers. The ash content was less than 0.46% and a small amount of particles were scattered on the cotton fibers. LS showed good dispersibility but had little effect on the washing power and zeta-potential.
研究领域:
材料科学
·
纺织工程
·
表面化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）