POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 29
·期 1
·254-262
·
IF 1.907
Yixin Peng,Zongxue Yu,Yang Pan,Guangyong Zeng
Membrane technology has been successfully applied for the removal of dyes from wastewater in the textile industry. A novel poly(vinylidene fluoride) (PVDF) membrane was prepared via blending with different dosages of Ag-TiO 2 -APTES composite for dyeing waste water treatment in our study. And the effect of Ag-TiO 2 -APTES blended into the PVDF membrane was discussed, including the rejection rate of methylene blue (MB) dye, membrane morphology, surface hydrophilicity, antibacterial activity, and a certain photocatalytic self-cleaning performance. X-ray diffraction and Fourier transform infrared characterization confirmed that Ag-TiO 2 was functionalized by amount of hydroxyl group (−OH) and amino group (NH−), which provided by APTES. Contact angle measurement certified that the hydrophilicity of the membrane surface increased, with the contact angle decrease to 61.4° compared with 81.8° of original PVDF membrane. MB rejection rate was also increased to 90.1% after addition of Ag-TiO 2 -APTES, and the rejection of original membrane was only 74.3%. The morphologies of membranes were observed by scanning electron microscope, which indicated that Ag-TiO 2 -APTES had a good dispersion in membrane matrix and also improved the microstructure of membranes. Besides, UV irradiation experiments were performed on the composite films contaminated by MB, and the result showed that Ag-TiO 2 -APTES nanoparticle provided PVDF membrane with a certain photodegradation capacity under UV irradiation. Moreover, antibacterial activity of the composite membrane was also demonstrated through antibacterial experiment, Escherichia coli as the representative bacteria. Perhaps, this research may provide a new way for PVDF blending modification.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2020
·Vol. 31
·期 5
·1007-1018
·
IF 2.578
Guiyuan Zhang,Yingqing Zhan,Shuangjiang He,Lianhong Zhang,Guangyong Zeng,Yu-Hsuan Chiao
Oil/water emulsion separation in harsh environments remains a big challenge. Herein, a double layered nanofibrous composite membrane was developed by assembly of polydopamine-modified hexagonal boron nitride (h-BN-PDA) onto a poly(arylene ether nitrile) (PEN) nanofibrous mat. Owing to the synergistic effect of a h-BN-PDA skin layer and a PEN nanofibrous mat supporting layer, as-prepared composite membrane exhibited high thermal stability, corrosion resistance, and superhydrophilic/underwater superoleophobic property. Consequently, the PEN composite membrane showed good antifouling performance and a high rejection ratio (>99.0%) for various oil/water emulsions. After 10 cycles, the separation flux of PEN composite membrane still reached 588.1 L/m 2 h under the operating pressure of 0.04 MPa. Furthermore, the PEN composite membrane could still achieve high separation efficiency and high flux in high-temperature (65 °C) and strongly corrosive conditions (pH = 1-13). Therefore, the stable and efficient h-BN-PDA/PEN composite membrane showed potential application for treating oily wastewater in harsh environments.
研究领域:
材料科学
·
环境工程
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2022
·Vol. 33
·期 10
·3455-3469
·
IF 3.348
Zishuo Ye,Hailin Lu,Endong Jia,Jian Chen,Lifeng Fu
Polyvinyl alcohol (PVA) hydrogels have potential applications in bionic articular cartilage due to their good biocompatibility and low friction. However, the lack of adequate mechanical properties is a key obstacle for PVA hydrogels to replace natural cartilage. In this study, polyethylene glycol (PEG) was introduced into the PVA hydrogel, and the (PVA/PEG) composite gels were prepared by a blending physical cross-linking method. The PVA/PEG gels were treated with a simple and novel organic solvent immersion dehydration to improve its mechanical and tribological properties. And the using of organic solvents for dehydration changed the network structure of the PVA/PEG gels, which improved the mechanical properties effectively. In this study, the effects of different organic solvents on the tribological properties, swelling ratio, shore hardness, and dehydration rate of PVA/PEG hydrogels were investigated. Compared with natural drying, organic solvent dehydration reduced the gel formation time. Notably, the organic solvent dehydration treatment reduces the wear rate of PE ball friction pair to 27.4% of the original amount, improving wear resistance. Meanwhile, self-healing and cellular immune assays demonstrated the excellent biocompatibility and self-healing ability of the PVA/PEG gels. This study provides a new candidate material for the design of articular cartilage, which is expected to advance the progress of artificial cartilage repair.
研究领域:
生物材料学
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医学工程
·
组织工程
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 2
·e70546
·
IF 3.8
Jing Wang,Xin Qian,Keyu Shi,Yao Wu,Yonggang Zhang,YuSen Liu,Tao Yu
CFRP composites face limited application due to weak interfacial bonding, especially for ultrahigh modulus carbon fibers (CFs) with a tensile modulus exceeding 500 GPa. In this study, a novel approach involving the grafting of octaaminopropyl polyhedral oligomeric silsesquioxane (OA-POSS) nanoparticles onto ultrahigh modulus CFs was developed to optimize the interfacial bonding with ultrahigh modulus CF and epoxy resin (EP). Comprehensive characterization demonstrated that OA-POSS modification significantly altered the physicochemical structure of the fiber surface; for example, surface roughness increased from 10.3 to 18.1 nm, and the O/C ratio increased significantly from 0.060 to 0.232, confirming the successful introduction of abundant polar functional groups by OA-POSS. The CF-POSS/EP composites exhibited a peak compressive strength of 282.60 MPa (at 3 wt% POSS) and an interlaminar shear strength of 63.05 MPa (at 2 wt% POSS), corresponding to improvements of 31.50% and 20.70%, respectively, over the untreated samples. The performance improvement stems from OA-POSS nanoparticles forming covalent bonds via reactive amino groups, enhancing mechanical interlocking through increased surface roughness, and acting as a stress-relief interphase to promote crack deflection and energy dissipation. This altered the failure mechanism from interfacial separation to matrix internal cracking, enabling more efficient stress transfer across the interface.
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 2
·e70517
·
IF 3.8
Nur Muhammad,Hongchen Song
Ion-exchange membrane chromatography (IEMC) is a promising alternative to conventional resin-based systems for bioseparation, offering advantages in throughput, pressure drop, and compatibility with continuous processing. However, challenges related to membrane morphology, functional ligand distribution, and scalability remain. In this study, we present a one-step fabrication approach to prepare cellulose acetate (CA)-based anion-exchange membranes by incorporating low-molecular-weight poly(ethylene imine) (PEI, M w ~10,000) and epichlorohydrin (ECH) crosslinker into the casting solution, followed by phase separation via a modified NIPS/VIPS method. The influence of PEI molecular weight and crosslinker type on membrane morphology, porosity, permeability, and binding performance was systematically evaluated. SEM analysis revealed that low-Mw PEI produced a homogeneous sponge-like structure, favorable for prolonged solute interaction, while high-Mw PEI ( M w ~750,000) led to dense or irregular morphologies. Among the tested crosslinkers, ECH yielded membranes with the highest flux, high porosity, and strong structural stability. FTIR and EDS analyses confirmed the successful incorporation of amine functional groups. When tested using a single-pass tangential flow filtration (SPTFF) system, the optimized CA-PEI-ECH membrane demonstrated superior BSA retention (up to 85.66%) and a sustained dynamic binding capacity over time compared to a previously studied 2-(dimethylamino)ethyl methacrylate (DMAEMA) functionalized CA membrane and non-functionalized supports. Finally, scale-up was achieved using a pilot-scale casting system, which produced membranes with consistent structure and performance. This work offers a practical and scalable route to fabricate high-performance IEMC membranes suitable for modern, continuous bioseparation processes.
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 2
·e70522
·
IF 3.4
Jing Hu,Guoqiang Wang,Shixin Song
Poly(lactic acid) (PLA), a type of bio-based polyester, exhibits numerous outstanding characteristics. However, it suffers from a low breaking elongation. In this research, poly(butylene succinate-co-cyclohexanedimethylene succinate) (PBCS) was synthesized. This polymer contains cyclohexane rings and has a limited crystallization capacity. PBCS was integrated into PLA to produce PLA/PBCS blends with heightened ductility. The incorporation of PBCS has the potential to boost the cold crystallization ability of PLA. Although the thermal decomposition temperatures of the blends experience a slight decline, they remain significantly higher than the processing temperature. Scanning electron microscopy (SEM) indicates that PLA has a certain degree of compatibility with PBCS. When the PBCS content reaches 30 wt%, the blend demonstrates high tensile strength (47 MPa) and a breaking elongation of 260%. Moreover, PBCS serves to lower the complex viscosity of PLA. At the same time, the complex viscosity of the blend shows greater stability with variations in temperature. Compared with poly(butylene succinate) (PBS), PBCS has better compatibility with PLA, and PLA/PBCS blends have higher elongation at break due to the poor crystallization ability and the conformational transition of the cyclohexane rings of PBCS.
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 2
·e70521
·
IF 3.8
Xu Zheng,Mingzhu Chen,Jun Zhang,Weijun Zhen,Yufeng Guo
The treatment of semi-coking wastewater generated during the semicoke production process has long been a bottleneck restricting the development of the coal chemical industry. The Fenton reaction is recognized as one of the most effective strategies for addressing water pollution; however, the susceptibility to mineralization and poor reusability of highly active catalysts has limited their practical application. Herein, a thermoplastic polyurethane (TPU) doped with oleic acid modified Mn 2 O 3 @Mn 5 O 8 (Mn 2 O 3 @Mn 5 O 8 -OA) composite fiber membrane was prepared via melt-blown spinning and blending using a melt-blown pilot setup. This composite was employed to activate peroxymonosulfate (PMS) for the degradation of semi-coking wastewater, achieving a maximum chemical oxygen demand (COD) removal efficiency of 72.4%. Material characterization confirmed successful catalyst immobilization and enhanced surface properties. Theoretical calculations provided molecular-level insights into the adsorption behavior of phenol and its degradation intermediates. The TPU-based membrane significantly improved catalyst stability and reusability while maintaining high catalytic activity, offering an effective strategy for advanced oxidation processes in complex wastewater treatment.
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产品关联
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2022
·Vol. 33
·期 5
·1442-1456
·
IF 3.348
Ming Zhang,Luyan Wang,Xiuzhi Zhang,Xiangyun Mi,Fengmeng Sun,Mei Ding,Meishan Pei
A sodium hypophosphite (SHP) modified polycarboxylatesuperplasticizer (P-PCE) was synthesized successfully and the synthesis parameters were optimized through orthogonal experiment. Gel permeation chromatography (GPC), X-ray photoelectron spectroscopy (XPS), 31 P magic spinning nuclear magnetic resonance ( 31 P MAS NMR) spectroscopy and elemental analysis measurements were used to characterize the molecular structure of P-PCE. Effects of P-PCE on the dispersing performance of cement paste were systematically investigated via mini slump test. The results showed that P-PCE exhibited superior dispersing performance, more retarding hydration effect and better sulfate and clay tolerance than conventional PCE (C-PCE). Results showed that the maximum flow of cement paste could reach up to 305 mm, while that of the C-PCE was 285 mm.The maximum variation of adsorption of P-PCE was 9% and 15% in the presence of sulfate and clay, whereas that of C-PCE was 15% and 25%, respectively, leading to better sulfate and clay tolerance. These significant advantages could be ascribed to the high anion density and high calcium complexing capacity induced by introducingphosphinate group and phosphonate group into the molecular structure of P-PCE. The as-synthesized P-PCE can be used as a kind of high performance superplasticizer in concrete engineering.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2022
·Vol. 33
·期 7
·2313-2324
·
IF 3.348
Zhiyi Huang,Tingting Liao,Xiaochun Liu,Jianyu Wu,Zilun Tang,Guoyi Pan,Huameng Liu,Xiaofeng Lin,Wenjing Lin,Yong Li,Yuxin Gu,Guobin Yi
Thermoplastic elastomer ethylene/α-octene co-polymer (POE) is a special polymer material with both elasticity and thermoplasticity. However, the nonpolarity and low-tensile strength of POE limit its application in polar materials and high-strength materials fields. In this study, we synthesized a specific molecule with C═C bonds and N H bonds, which was introduced into POE to construct hydrogen bonding network, and the prepared modified POE is further blended with carboxyl terminated polystyrene nanospheres as toughening agent to prepare modified POE elastomer composites. Based on such dual toughening strategy containing chemical modification and physical toughening, the modified POE elastomer composites possess improved mechanical properties. The composites achieve a tensile strength of 21.4 MPa, elongation at break of 1268%, fracture energy of 109.6 MJ∙m −3 and exhibit improved thermal stability. Impressively, the tensile strength of reprocessed composites is restored to more than 90% of their original tensile strength even after four times of reprocessing steps, demonstrating excellent reusability.
研究领域:
材料科学
·
高分子科学
·
机械工程
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2020
·Vol. 31
·期 11
·2615-2631
·
IF 2.578
Dina F. Katowah,Gharam I. Mohammed,Dyab A. Al-Eryani,Osman I. Osman,Tariq R. Sobahi,Mahmoud A. Hussein
The nanocomposites (NCs) of cross-linked polyaniline (CPA) with a variety of carbon nanomaterials (CNMs) (CPA/CNMs NCs) was prepared by the chemical oxidative copolymerization of PANI and p-phenylenediamine (PPDA) with triphenylamine (TPA) in the presence of CNMs. The results of XRD, FTIR and Raman indicated that the CPA/CNMs NCs were effectively synthesized with strong interactions among the constituents. The morphology study demonstrated that CNMs were well coated by CPA and produce a well-aligned nanorod core-shell structure with the large surface area which may be more beneficial to electrical conductivity when used as electrode materials. Differential thermal analysis techniques (TGA-DTG) were used to characterize the thermal stability of NCs. The heat of formation of CPA monomer from TPA, PPDA and aniline (ANI) were computed using Density Functional Theory (DFT) calculations. The NCs of G-MWCNTs demonstrate higher affinity to oxidation of Chlorophenols (CPHs) than glassy carbon electrode (GCE), CPA/GCE and the other NCs. Differential pulse voltammetry (DPV) was used for the trace determination of 2,4-dichlorophenol (2,4-DCP). Under the optimum conditions, the peak current of 2,4-DCP was proportional to its concentration in the range of 0.05-0.6 μmol/L. The detection limit was 7.6 nmol/L. The method was successfully applied for the determination of 2,4-DCP in fish farm water with satisfactory recoveries. The suggested method has an advantage to be used for water samples due to its short analytical time, rapid response, high sensitivity, and excellent selectivity with good reproducibility.
研究领域:
分析化学
·
环境科学
·
纳米材料
·
电化学传感
·
水污染监测
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 28
·期 12
·1735-1742
·
IF 1.907
Gonglei Shao,Huajie Yao,Ao Liu,Zhonglu Zhang,Jiajia Huang,Siguo Yuan
A series of novel adsorption resins were synthesized via the chloromethylation of polyphenylene sulfide (PPS) resin and subsequent functional group conversion reaction. Their chemical structure, thermal stability, and morphology were systematically characterized by the Fourier transform infrared spectroscopy, elemental analysis, Raman spectroscopy, thermogravimetric analysis, scanning electron microscope, and energy dispersive spectrometer, respectively. The experimental results showed that the thioureido, mercapto, aminopyridine, and quaternary ammonium groups had been respectively introduced into PPS matrix, the functional group content of PPS-based mercapto resin (HS-PPS), aminopyridine resin (AP-PPS), and quaternary ammonium resin (QA-PPS) were about 2.20, 1.71, and 2.61 mmol g −1 , respectively. The adsorptive performance for Hg (II) and As (V) were studied by batch adsorptive method; the adsorption capacities of the HS-PPS and AP-PPS resin for Hg (II) were 210.65 and 169.06 mg g −1 . The adsorption capacity of the QA-PPS resin was 88 mg g −1 for As (V). Copyright © 2017 John Wiley & Sons, Ltd.
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DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2017
·Vol. 28
·期 11
·1409-1417
·
IF 1.907
Yanyan Guan,Xin Wen,Hongfan Yang,Lipeng Zhang,Mingang Li,Jing Shao,Yunhui Li,Tao Tang
A crosslinked silicone-containing macromolecular charring agent (CSi-MCA) was synthesized via “one-pot” process, and it was combined with ammonium polyphosphate (APP) to synergistically improve the flame retardancy of poly( l -lactic acid) (PLA). The chemical structure of synthesized CSi-MCA was characterized by Fourier transform infrared spectroscopy and solid-state 13 C nuclear magnetic resonance. The thermal gravimetric analyzer indicated that the CSi-MCA displayed good thermal stability and high residue via the catalytic crosslinking. Furthermore, the flame retardant effect of CSi-MCA and APP as intumescent flame retardants in PLA system was investigated by limited oxygen index, UL94, and cone calorimeter test. When the content of CSi-MCA was 5 wt% and APP was 10 wt% (CSi-MCA/APP = 1/2), the limited oxygen index value of composites was 33.6 and UL94 classed a V-0 rating. The peak heat release rate and total heat release of PLA composites containing both APP and CSi-MCA decreased significantly in comparison with those with APP or CSi-MCA alone. The flame retardancy mechanism was investigated via analyzing residual chars by scanning electron microscopy and X-ray photoelectron spectroscopy as well as the possible chemical reaction between APP and CSi-MCA by thermal gravimetric analyzer and Fourier transform infrared spectroscopy. The results showed that the enhanced flame retardancy was attributed mainly to synergistic effect of CSi-MCA and APP, which could form a compact, continuous, and protective layer during combustion. Copyright © 2017 John Wiley & Sons, Ltd.
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DOI
高影响因子
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