Journal of Industrial Textiles
·
2018
·
IF 1.283
Feichao Zhu,Juanjuan Su,Mingjun Wang,Munir Hussain,Bin Yu,Jian Han
With increasing demands on the high-performance and environmental-friendly melt-blown nonwovens (MBs) for separation and filtration, herein, we reported a poly(lactic acid)/polyamide 11 (PLA/PA11) 100% bio-based MBs in situ compatibilized by dual-monomer glycidyl methacrylate–styrene melt-grafted poly(lactic acid) (PLA-g-(St-co-GMA)). The morphology, crystallization, thermal and rheological behaviors of reactive extruded PLA/PA11/PLA-g-(St-co-GMA) melt blends were investigated, and the structure and filtration performance of corresponding MBs were fully characterized. The results indicated that the interface between PLA and PA11 were effectively improved due to the compatibilizer of PLA-g-(St-co-GMA). PA11 promoted the cold crystallization and enhanced the thermal stability of PLA matrix. The reactive blends displayed a higher viscosity with unchanged rheological behaviors compared with PLA. In comparison with PLA MBs, the average fiber diameter and pore size of PLA/PA11/PLA-g-(St-co-GMA) MBs were slightly increased, whereas the strength and toughness were significantly improved. All the PLA/PA11/PLA-g-(St-co-GMA) MBs presented high air permeability and low filtration resistance. High filtration efficiency (>99.8%) could also be obtained especially for the target particles with diameters larger than 2.5 µm.
研究领域:
材料科学
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环境科学
·
高分子化学
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产品关联
DOI
高影响因子
POLYMER TESTING
·
2021
·
IF 4.282
Xuanhe Yang,Shaoping Li,Yanqing Yao,Jia Zhao,Zhiguo Zhu,Chunpeng Chai
A Polypropylene non-woven fabric/ZIF-8 composite film was prepared by in-situ grown method. The loading amount of ZIF-8 of PP non-woven fabric/ZIF-8 composite film increases as the volume of reaction solution and the aging time go up. Scanning electron microscopy (SEM) was used to characterize the microstructure of PP non-woven fabric/ZIF-8 composite film. The results show that ZIF-8 nanoparticles were evenly distributed on the PP fiber. The hydrophobicity of PP non-woven fabric/ZIF-8 composite was characterized by water contact angle. The contact angle was up to 137.45°, when ZIF-8 loading amount was 0.85 g·g −1 . The material can quickly adsorb floating oil and underwater heavy oil without absorbing water, and the gasoline adsorption capacity of the composite was up to 3612% of its mass and maintains a high oil absorption capacity after it was reused 43 times, which proves that PP non-woven fabric/ZIF-8 composite film is a well recyclable oil/water separation material.
研究领域:
材料科学
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环境工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry B
·
2017
·Vol. 5
·期 30
·6138-6146
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IF 4.543
Lijuan Zhang,Junmei Sun,Yunshan Zhou,Yuxu Zhong,Ying Ying,Yanqin Li,Yanqin Liu,Zareen Zuhra,Chunqian Huang
Cu3(BTC)2 (H3BTC = 1,3,5-benzenetricarboxylic acid) was anchored onto the surface of carboxymethylated chitosan non-woven fabrics by a controllable layer-by-layer technique in alternating solution baths of Cu(OAc)2·H2O and H3BTC solutions, and the resulting [Cu3(BTC)2]n@chitosan non-woven fabric composite materials (n = number of alternate deposition cycles) were thoroughly characterized. The results showed that the composite materials not only exhibited excellent decontamination ability against sulfur mustard (HD), with an enhanced degradation rate of HD with increasing n, but also possessed remarkable haemostasis performance. The degradation efficiency of sulfur mustard by [Cu3(BTC)2]4@chitosan was found to be much higher than that of pristine [Cu3(BTC)2]4. The inherent haemostatic capabilities of the chitosan non-woven fabrics were not affected by the growth of Cu3(BTC)2 on the surface of chitosan. Oral and histological toxicity examinations of the pristine Cu3(BTC)2 sample showed that damage and toxicity in the viscera of mice was very low, even if the intra-gastric administration dose of Cu3(BTC)2 reached a very high level (50 mg of Cu3(BTC)2 per kg of mouse). The results have shown that the as-prepared composite can be used safely as a promising haemostatic decontaminant with good recyclability against sulfur mustard.
研究领域:
材料科学
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生物医学工程
·
化学
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Jing Li,Hui Sun,Dewei Zhang,Xiaodong Yang,Zhuan Fu,Bin Yu
Previous studies have confirmed that MnOx removes heavy metal ions and organic pollutants from water with dual effects of adsorption and oxidation coupling, significantly improving the ability to remove impurities. Nanometal oxides have a highly reactive surface but tend to agglomerate during preparation and are challenging to recycle after use. A common method is to combine nano-MnO2 with Fe3O4 to prepare magnetic materials for easy recycling. Our previous research has confirmed that catechol (CA) and (3-aminopropyl) triethoxysilane (KH550) can be co-deposited on the surface of polypropylene nonwovens to form a stable CK coating under alkaline conditions. In addition, the coating has many active groups, including hydroxyl groups, amino groups, etc. This study further investigates the secondary reactivity of CK coatings. The coordination of catechol groups and metal ions was used to anchor manganese ions to the coating. Meanwhile, the hydroxyl and amino groups were used to reduce manganese ions to Mn4+ in situ to prepare PP-(CK-MnO2). We found that the sample had an excellent decolorization effect on cationic dyes but was limited to anionic dyes. The decolorization mechanism of cationic dyes was further discussed. The results showed that the decolorization of cationic dyes had a dual effect of adsorption and oxidative degradation. Under acidic conditions, its oxidation properties were enhanced. It can be used as a highly effective decolorizing agent for cationic dyes, and the decolorization behavior is consistent with the first-order kinetics. As the pH increases, its oxidation properties gradually decrease. Although the electrostatic adsorption effect was enhanced, the overall decolorization performance was significantly reduced. Recycling experiments have proved that it can maintain >90% removal rate after five cycles. This study also demonstrated that the CK coating has dopamine-like properties, which can coordinate with metal ions to prepare metal–organic hybrid materials.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCES IN POLYMER TECHNOLOGY
·
2018
·Vol. 37
·期 8
·3519-3528
·
IF 2.073
Shichang Chen,Lihao Zhang,Menghan Sun,Xianming Zhang,Wenxing Chen
A nonwoven fabrics based on 3-isopropenyl-α,α′-dimethylbenzene isocyanate grafting polypropylene (PP-g-TMI) was modified with dopamine both by covalent reaction and by polymer layer deposition involving straightforward self-polymerization (PP-PDA) to improve the hydrophilic property of polypropylene nonwoven fabrics. The functionalized surfaces were characterized by structural and morphological analysis combined with the rheological property to confirm the location and dispersion of PDA. The water contact angle, water absorption ability, and the vapor transmission rate were examined to evaluate the hydrophilicity performance of modified materials. It was found that the aggregated small particles on PP nonwoven fabric could result in a heterogeneous surface, and the modified PP nonwoven fabric with dopamine indicated a lower water contact angle and better hydrophilicity that the water absorption ability nearly soared to ten times that of PP nonwoven fabric without PDA.
研究领域:
材料科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yifei Li,Mingjing Chen,Yazhou Su,Lin Meng,Zhimin Li,Xiaoxia Sun,Xinhou Wang
Air pollution remains a pressing global challenge, necessitating the urgent development of advanced air filtration and protection technologies. Although personal protective masks have addressed the concerns to some extent, designing those that combine high filtration efficiency with low pressure drop and enhanced wearing comfort are still desirable. To remove this hurdle, we here harness a direct freeze-drying strategy to enable in-situ grown polyethylene oxide (PEO) nanofibrous structures (ranging from 10 nm to several hundred nanometers) into polypropylene (PP) melt-blown (MB) nonwovens (1–10 μm). Compared to the original PP MB nonwovens, the PEO nanofiber-decorated counterparts demonstrate a remarkable improvement in filtration efficiency, increasing from 30 % to 99.8 %, alongside an approximately two-fold enhancement in the quality factor. Furthermore, the addition of the PEO nanofibrous structure significantly enhanced the thermal conductivity of the material, enabling superior heat dissipation. Notably, the minimum air permeability of the PEO/PP-nano/microfibrious nonwovens (PEO/PP-NMNs) remained as high as 340 mm/s, even after incorporation of the nanofiber network. These findings underscore the potential of PEO/PP-NMNs as promising materials for next-generation personal protective equipment.
研究领域:
材料科学
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环境科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Shun Chen,Fuwei Liang,Liping Jin,Chenpeng Ji,Nan Xu,Kun Qian,Wenwen Guo
With the increasing awareness of environmental protection, the demand for eco-friendly bio-derived flame-retardant for textiles has received increasing attention. In this work, a fully bio-derived phosphorylated furan-based flame retardant (FAP) was synthesized by the Schiff reaction of furan-based compounds (furfural and furfurylamine). To evaluate the application scope and flame retardant efficiency of FAP, cotton fabrics and PLA nonwovens were selected as biomass-based representatives of natural fiber materials and synthetic fiber materials, respectively. Significantly, based on the composition of furan ring, phosphorus and nitrogen containing components of FAP, excellent charring and flame retardant properties of coated cotton fabrics and PLA nonwovens can be expected. TGA results showed that the residual char of C-FAP-3 and P-FAP-3 were 39.7% (increased by 267.6%) and 16.7% (increased by 215.1%), respectively, higher than those of control cotton (10.8%) and PLA nonwoven (5.3%). Cone test results exhibited that the peak heat release rate (PHRR) and total heat release (THR) values of C-FAP-3 were sharply decreased by 69.4% and 37.8%, respectively. P-FAP-3 also displayed a significant reduction in PHRR, implying high flame retardancy of C-FAP-3 and P-FAP-3. Notably, through the weight gains of FAP coating on cotton and PLA as well as the final LOI and VBT results of the flame retardant treated fabrics, it can be preliminarily inferred that control cotton fabrics are more likely to achieve better flame retardant effects than PLA. Additionally, the facile synthetic strategy of fully bio-derived flame retardants is expected to promote the development of green flame retardant strategies for high-performance textiles.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Membranes
·
2021
·Vol. 12
·期 1
·54
·
IF 4.106
Zeman Liu,Yiqi Wang,Fei Guo
Fibrous membranes with a nonwoven random structure and a quasi-parallel fibrous structure can be fabricated by the electrospinning technique. The membranes with different structures exhibited different behaviors to a hydraulic flow passing through the membranes. This work presents the effects of the fiber arrangement, fiber diameter, and deformations of the fibers on the hydraulic permeability. The results showed that the hydraulic flow can generate an extrusion pressure which affects the porosity and pore structure of the fibrous membranes. The quasi-parallel fibrous membranes and nonwoven membranes exhibited similar variation tendencies to the change of the experimental variables. However, the quasi-parallel fibrous membranes exhibited a higher sensibility to the change of the hydraulic flow rate. The hydraulic permeability of the quasi-parallel fibrous membranes was further analyzed with packing state models in this work.Keywords:hydraulic permeability;compressibility;quasi-parallel;nonwoven;electrospinning
研究领域:
材料科学
·
流体力学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2011
·Vol. 26
·期 4
·675-680
·
IF 0.386
Hao Limei,Wang Zheng,Qi Jiancheng,Wang Shuang,Hou Lili,Wu Jinhui,Yang Jingquan
A novel antibacterial material (L-PET) was prepared by immobilizing ɛ -polylysine on polyethylene terephthalate (PET) nonwoven fabrics. Surface modifications of the fabric were performed by using a chemical modification procedure where carboxyl groups were prepared on the PET surface, a coupling agent was grafted, and the ɛ -polylysine was immobilized. Scanning electron microscopy (SEM) was used to analyze the surface morphology of the fabrics, while the toluidine blue method and X-ray photoelectron spectroscopy (XPS) were used to evaluate the grafting densities. The antibacterial activities of the L-PET were investigated by using the shaking-flask method. The electron micrographs showed that the surface of the blank PET and the modified fabrics did not change. The results of XPS analysis confirmed that ɛ-polylysine was successfully grafted onto the surface of PET. The results of the antibacterial experiments showed that L-PET fabrics had excellent antibacterial activity against Escherichia coli and Staphylococcus aureus, and that L-PET fabrics were stable in storage for at least two years.
研究领域:
材料科学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 14
·2952
·
IF 4.967
Ming-Chao Han,Shun-Zhong Cai,Ji Wang,Hong-Wei He
Meltblown (MB) nonwovens as air filter materials have played an important role in protecting people from microbe infection in the COVID-19 pandemic. As the pandemic enters the third year in this current global event, it becomes more and more beneficial to develop more functional MB nonwovens with special surface selectivity as well as antibacterial activities. In this article, an antibacterial polypropylene MB nonwoven doped with nano silicon nitride (Si3N4), one of ceramic materials, was developed. With the introduction of Si3N4, both the average diameter of the fibers and the pore diameter and porosity of the nonwovens can be tailored. Moreover, the nonwovens having a single-side moisture transportation, which would be more comfortable in use for respirators or masks, was designed by imparting a hydrophobicity gradient through the single-side superhydrophobic finishing of reactive organic/inorganic silicon coprecipitation in situ. After a nano/micro structural SiO2precipitation on one side of the fabric surfaces, the contact angles were up to 161.7° from 141.0° originally. The nonwovens were evaluated on antibacterial activity, the result of which indicated that they had a high antibacterial activity when the dosage of Si3N4was 0.6 wt%. The bacteriostatic rate againstE. coliandS. aureuswas up to over 96%. Due to the nontoxicity and excellent antibacterial activity of Si3N4, this MB nonwovens are promising as a high-efficiency air filter material, particularly during the pandemic.Keywords:PP meltblown nonwoven;silicon nitrile (Si3N4);filtration;antibacterial materials;superhydrophobicity
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2015
·
IF 2.711
Zhirong Xin,Shanshan Du,Chunyu Zhao,Hao Chen,Miao Sun,Shunjie Yan,Shifang Luan,Jinghua Yin
A growing number of wound dressing-related nosocomial infections necessitate the development of novel antibacterial strategies. Herein, polypropylene non-woven fabric (PP NWF ) was facilely modified with passive and active antibacterial components, namely photografting polymerization both N -Vinyl-2-pyrrolidone (NVP) and glycidyl methacrylate (GMA) monomers, and the introduction of guanidine polymer through the reaction between active amino groups and epoxy groups. The modified samples were confirmed by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), respectively. Water contact angle measurement, antibacterial test, platelet and red blood cell adhesion were used to evaluate the hydrophilicity, antibacterial properties and hemocompatibility of the samples. It was found that the antibacterial properties were obviously enhanced, meanwhile significantly suppressing platelet and red blood cell adhesion after the above modification. This PP NWF samples that possess antifouling and antimicrobial properties, have great potential in wound dressing applications.
研究领域:
生物医学工程
·
材料科学
✓ 已验证
DOI
高影响因子
FIBERS AND POLYMERS
·
2019
·Vol. 20
·期 7
·1404-1410
·
IF 1.439
Wang Zongqian,Yang Haiwei,Pan Ning,Li Wei,Xie Yanxia,Liu Zhi,Fang Yinchun
Polyethylene/Polypropylene (PE/PP) composite non-woven fabrics have been used widely for surgical packages due to its dual features of PE surface and PP surfaces. PP fabric pre-treated by hydrophilic agent provides high water absorbency, while PE surface is responsible for high barrier functions. However, the PP water absorbency declines once PE film is laminated, and no report devoted to study the extent and the reasons of this declining. Herein, the hydrophilic finishing of the PP non-woven fabrics was processed via Kiss-roll method, then the PE/PP fabrics were obtained using a normal hot melt adhesive PE film laminating process. The wicking height, water absorption specific gravity (LAC%), static contact angle, as well as the complete wetting time of the finished PP and PE/PP fabric were measured and compared. Meanwhile, the SEM was used to detect the morphology changing. The results revealed that the pores between fibers in the PP non-woven were filled with non-hydrophilic hot melt adhesive penetrated during PE lamination, so that the PP structure changed to be less porous. Moreover, the laminated PP layer actually blocks the water flow channel in the system, resulting in the absorbency reduction after lamination. As a result, comparing with the PP non-woven fabric, the wicking height of the PE/PP fabric decreased by 25.3 %, the LAC % value reduced by 40.83 %, and the complete wetting time extended from 0.29 s to 1.74 s.
研究领域:
材料科学
·
纺织工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）