JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 143
·期 6
·e58196
·
IF 2.8
Chao Shen,Tuanhui Jiang,Xiangbu Zeng,Nenggui Zhu,Shengnan Li,Xiang Zhang,Wei Gong,Li He
Polybutylene adipate-co-terephthalate (PBAT) is a promising biodegradable polymer, but its high cost limits wider use. This study integrates low-cost bamboo powder (BP) and chemical foaming injection molding to produce economical PBAT-based composites. A compatibilizer, PBAT-g-MAH, was produced via melt free-radical grafting. The influence of BP and PBAT-g-MAH on the mechanical, rheological, thermal, and foaming properties of PBAT composites was systematically investigated. Due to poor PBAT/BP compatibility, composites initially showed decreased mechanical, rheological, thermal, and foaming properties. At 30 wt.% BP, tensile strength decreased by 30.5% (from 23.24 to 16.16 MPa), whereas elongation at break declined by 45.3% (from 1243.5 to 679.8%). Foam morphology also deteriorated: the mean cell size increased from 32 to 58 μm, cell density dropped from 5.1 × 10 6 to 1.0 × 10 6 cells/cm 2 , and cell distribution became nonuniform. In contrast, the introduction of PBAT-g-MAH significantly improved interfacial interactions between BP and PBAT, leading to enhanced filler dispersion and the restoration of overall composite properties. PBAT/BP/PBAT-g-MAH composites showed performance comparable to neat PBAT, demonstrating that lightweight, biodegradable PBAT-based products can be fabricated while maintaining key properties by integrating natural fillers with compatibilization strategies and chemical foaming injection molding techniques.
研究领域:
材料科学
·
高分子工程
·
可生物降解聚合物
·
复合材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 143
·期 9
·e70121
·
IF 2.8
Xiangguo Teng,Li Wan,Liangwei Zhang,Jicui Dai
In order to improve the selectivity of the porous membrane for vanadium redox flow battery (VRB), a thin film nanocomposite (TFN) membrane is constructed by incorporating hydroxylated hexagonal boron nitride into the skin layer of the polyether sulfone/sulfonated polyether ether ketone porous substrate ( M 0 ) via the interfacial polymerization method. By employing the stable polyethyleneimine and cyanuric chloride monomers, the as-prepared TFN membrane not only exhibits high selectivity but also high stability for VRB application. As a result, the VRB assembled with the optimized MB 0.6 TFN membrane shows the highest coulombic efficiency (CE) of 99.3% at a current density of 80 mA cm −2 , and the highest EE (energy efficiency) of 88.4% at a current density of 40 mA cm −2 . As a comparison, at the same current density, the CE and EE of the VRB assembled with M 0 are only 90.0% and 73.2%, respectively, and the CE and EE of the VRB assembled with commercial Nafion 115 are 91.7% and 73.8%, respectively. Furthermore, the MB 0.6 membrane presents stable cell performance with no significant decay of cell efficiencies during a 100 cycles test. The results indicate that the composite membrane with high selectivity and stability has potential as an alternative to Nafion in VRB application.
研究领域:
能源材料
·
膜科学
·
电化学储能
·
纳米复合材料
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Guona Bai,Xu Wu,Mengqun Li,Zihao Zhao,Mengqing Wang,Xinyu Wang,Jiangang Gao,Zongrui Zhang
To address the synergistic removal of Congo Red (CR) and hexavalent chromium (Cr(VI)) from industrial wastewater, this study proposed an “electrospinning-surface modification” strategy. Using poly(vinyl alcohol-co-ethylene) (PVA-co-PE) as the substrate, a dual-functional composite nanofibrous membrane adsorbent (PVA-co-PE/chitosan (CS)/polydopamine (PDA)) was constructed via CS grafting and PDA coating. The structural and physicochemical properties of the PVA-co-PE/CS/PDA NF membranes were characterized by elemental mapping, spectroscopic analyses, and morphological observation, while batch experiments were conducted to investigate the adsorption behavior and key influencing factors. Results showed that the composite membrane exhibited maximum adsorption capacities of 716.9 mg/g for CR and 264.4 mg/g for Cr(VI), with the adsorption process conforming to the Langmuir monolayer adsorption model and pseudo-second-order kinetic model (dominated by chemical adsorption). After four adsorption–desorption cycles, the membrane retained adsorption capacities of 609.3 mg/g for CR and 224.5 mg/g for Cr(VI), demonstrating excellent cyclic stability. With advantages of simple preparation, strong recyclability, and negligible secondary pollution, the proposed composite membrane serves as a novel, efficient adsorbent for the synergistic advanced treatment of organic dyes and heavy metal ions in complex industrial and holds substantial engineering application value.
研究领域:
环境科学技术
·
材料科学
·
化学工程
·
水处理
·
纳米材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xin Wu,Ying Hu,Yan Li,Lin Zhou,Yan Kou,Xiuli Zhao,Mao Chen
Herein, we propose a strategy to spatially regulate dynamic bond exchange in epoxy vitrimer by introducing graphite flakes (GFs) fillers with multi-angle orientations ( θ = 0°–90°). Through a hot-pressing-induced alignment technique, GFs were arranged in five angular configurations within a disulfide-based vitrimer matrix. Stress relaxation analysis revealed a bidirectional regulatory effect: as θ increased from 0° to 90°, the characteristic relaxation time ( τ ) at 180°C rose from 17.2 to 28.0 s, while the activation energy ( E a ) decreased from 97.7 to 90.0 kJ/mol. By integrating vector decomposition and Arrhenius kinetics, we established a dual-exponential decay model linking sinθ to E a and τ , quantitatively describing orientation-dependent dynamics. This work pioneers the spatial manipulation of vitrimer network reconfiguration, offering a paradigm for anisotropic smart materials.
研究领域:
高分子科学
·
材料化学
·
软物质物理
·
智能材料
·
纳米复合材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Zitong Hu,Changchang Ma,Jinkang Wu,Yan Zhang,Saifei Xiang,Jianbo Ying
Due to the unique application environment of new energy vehicle charging piles, the cable sheath materials are subject to stringent requirements. Enhancing the flame retardancy of cable sheath materials while maintaining their mechanical and insulation properties is important. The cross-linked high-density polyethylene (HDPE)/ethylene propylene diene monomer rubber (EPDM) blend (TPV) is considered an excellent cable sheath material, combining desirable electrical insulation and environmental shielding properties. Here, an intumescent flame retardant (IFR) composed of ammonium polyphosphate (APP) and dipentaerythritol (DPER) was combined with zinc borate (ZB) to enhance the flame retardancy of TPV, and the optimal ZB loading was investigated. The results revealed that the sample “0.10ZB” with the loading ZB of 0.1 phr reached a limiting oxygen index (LOI) value of 24.4% and a UL94 V-0 rating. Cone calorimeter tests further demonstrated that 0.10ZB effectively reduced both the heat release rate (HRR) and total heat release (THR), indicating a significant improvement in flame retardancy. Moreover, the 0.10ZB composites also exhibited excellent mechanical and insulation properties, demonstrating a balanced property profile suitable for practical cable sheath applications.
研究领域:
材料科学
·
高分子工程
·
消防安全工程
·
电气工程
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jinhe Gao,Shuangle Xue,Caizhao Liu,Caiyu Song,Mehdi Derradji,Mianyuan Wu,Tianyi Xie,Zhigang Yuan,Mingming Sun,Xugang Zhang,Jianhui Li,Bin Zhang
To increase the toughness of epoxy resin, an allyl-terminated furanylbenzoxazine (AFB) derived from eugenol was copolymerized with epoxy resin (E51). Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC) analyses were used to examine the curing behavior of the blended resins. With increasing AFB content, the crosslinking density of the EP-AFB resins decreases, while the residual carbon yield ( Y c ) of the epoxy resins after high-temperature combustion in a nitrogen atmosphere increases. The Y c of EP-4AFB increased from the initial 14.92% to 20.21%. In addition, appropriate concentration of AFB could be conducive to improving the mechanical properties. The flexural and impact strengths of EP-1AFB resins were 3.5% and 81.3% higher than EP resins, respectively. The elongation at break and tensile strength of EP-3AFB resins were 91.2% and 68.4% higher than EP resins, respectively. Furthermore, the addition of AFB significantly modified both adhesive (lap shear strength and peel strength) and dielectric properties of the epoxy resins.
研究领域:
高分子化学
·
材料科学
·
热固性树脂
·
复合材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Ablat Ablimit,Linyang Fan,Min Liu,Yan Li,Mamatjan Yimit
When used outdoors, polyethylene (PE) film is exposed to ultraviolet radiation with a wavelength of 300 nm, causing molecular chain breakage and leading to deterioration of the film's mechanical properties. To enhance the film's weather resistance, this study modified nano-ZnO (zinc oxide) using different coupling agents. The ultraviolet transmittance and mechanical properties of PE films modified with nano-ZnO incorporating various coupling agents were investigated. The γ-aminopropyltriethoxysilane coupling agent (KH550) was selected. The KH550-ZnO/PE film achieved a tensile strength of 34.2 MPa while providing effective UV shielding with minimal visible light blocking. The aging behavior of KH550-modified nano-ZnO-filled PE films under indoor accelerated aging conditions was investigated. By comparing the mechanical properties and UV shielding performance of PE films with varying nano-ZnO concentrations, the optimal loading was determined to be 4 wt%. PE films containing 4 wt% nano-ZnO demonstrated superior weather resistance in pure UV aging tests, maintaining 88.22% tensile strength retention after 40 days of pure UV exposure. In thermo-oxidative aging tests without UV influence, the 4 wt% maintained a tensile strength retention rate of 69.23%. However, in the thermo-oxidative photoaging test, the presence of moisture led to increased hydroxyl radical generation under the photocatalytic effect of nano-ZnO. This resulted in degradation of the modified PE film segments by hydroxyl radicals, manifesting as reduced tensile strength. Furthermore, three-dimensional polymer aging visualization revealed that changes in carbonyl and carboxyl groups within the film also followed the aforementioned aging patterns. This work aims to extend the service life of agricultural films used in high-temperature, dry environments by incorporating modified nano-ZnO.
研究领域:
高分子科学
·
材料工程
·
纳米复合材料
·
环境耐久性
·
农用薄膜
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Yiao Wang,Bing Shi,Qianjin Xu,Hao Wang,Kunji Liu,Chunzhong Li,Jianhua Shen,Haibo Jiang
Due to the environmental concerns associated with zinc oxide, there is growing momentum toward limiting its usage, particularly in the rubber tire industry. However, reducing ZnO content in tire manufacturing remains a significant challenge, primarily because the activation mechanism of ZnO has not yet been fully elucidated. In this work, three types of ZnO with different surface structures were synthesized, and the activation effects of various atomic structures on ZnO facets toward sulfur and the accelerator N-cyclohexyl-2-benzothiazole sulfonamide (CBS), were studied through experiments and density functional theory calculations, ultimately converging on the same conclusions: Zn 2+ located in the outermost layer of the ZnO (0 0 1) facet can significantly facilitate the cleavage of S-S bonds in sulfur and N-S bonds in the accelerator CBS. The ZnO (1 0 0) facet comprises two energetically distinct surfaces: the high-energy (H-(1 0 0)) facet, which exposes two-coordinate zinc, exhibits relatively high surface reactivity and moderately promotes the decomposition of sulfur and CBS; while the low-energy (L-(1 0 0)) facet, dominated by three- coordinate zinc, which is more prevalent but possesses lower surface reactivity. The prevalence of L-(1 0 0) reduces the overall activation efficiency of ZnO (1 0 0) for sulfur and CBS decomposition.
研究领域:
材料科学
·
物理化学
·
高分子科学
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Guowei Liu,Rui Pan,Erlei Yu,Xiaolong Hu,Rui Hu
To valorize industrial waste and enhance polylactic acid (PLA), this study hypothesizes that functionalizing hollow fly ash cenospheres (FAC) with a phosphorus-nitrogen system creates a synergistic flame-retardant and thermal insulating additive. Accordingly, a multifunctional filler (FAC-KH550-PA-MEL) was synthesized and characterized via Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). PLA composites were subsequently evaluated using thermogravimetric analysis (TGA), limiting oxygen index (LOI), cone calorimetry, and thermal conductivity measurements. Results demonstrate that 5 wt% additive enabled PLA to achieve a UL-94 V-0 rating and an LOI of 31.8%, with a 28.06% reduction in peak heat release. These improvements stem from a synergistic mechanism: phytic acid (PA) promotes condensed-phase charring, melamine (MEL) provides gas-phase dilution, and the silicate skeleton of FAC acts as a thermal barrier. Furthermore, the unique hollow structure of FAC reduced thermal conductivity by 36.25% to 0.0712 W/(m K). This confirms that low-loading functionalized FAC effectively yields high-performance, multifunctional PLA composites.
研究领域:
材料科学
·
聚合物复合材料
·
消防安全工程
·
热工学
·
废弃物回收与利用
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shuge Wang,Rui Hu,Wangli Mei,Suning Sun,Erlei Yu
The escalating release of organic dyes in industrial effluents threatens environmental and public health. This study synthesizes a β-cyclodextrin-maleic anhydride hollow crosslinked polymer (St-DVB-MA-β-CD) through radical copolymerization of styrene-maleic anhydride (PMS) particles with divinylbenzene (DVB). The adsorbent demonstrates exceptional performance for cationic dye removal, surpassing benchmark materials. Within 10 min, > 90% removal efficiency was achieved for malachite green (MG), crystal violet (CV), astrazon pink FG (FG), and methylene blue (MB), indicating rapid adsorption kinetics. Maximum capacities reached 3896 mg/g (MG), 4036 mg/g (CV), 3869 mg/g (FG), and 3170 mg/g (MB). Adsorption conformed to the pseudo-second-order kinetic model and Langmuir isotherm, confirming monolayer chemisorption. Crucially, > 90% MG removal efficiency was preserved after five regeneration cycles, demonstrating robust reusability for dye removal.
研究领域:
环境科学
·
材料化学
·
水处理技术
·
聚合物科学
·
吸附工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Ruyue Li,Han Yang,Hongyun Hu,Wanding Chen,Jinping Ni,Yajin Fang,Zhaobin Tang,Yanlin Liu
Semi-aromatic polyamides are among the most crucial materials in the field of specialty engineering plastics. However, achieving a balance between their mechanical properties and processability remains a significant challenge. Currently, bio-based semi-aromatic polyamides are mainly synthesized using flexible or polyester-derived monomers. This study introduces an innovative approach by selecting ferulic acid, a degradation product of lignin with a broader natural availability, as the primary raw material. The aromatic backbone of ferulic acid imparts rigidity and heat resistance to the resulting polyamides. A series of ferulic acid-based semi-aromatic polyamides were synthesized via an efficient interfacial polymerization method. The properties of these materials can be tailored by adjusting the structural characteristics of the polymer segments. As the chain length increases, the segmental mobility of the polymer chains is enhanced, leading to a reduction in glass transition temperature from 120°C to 80°C, the thermal decomposition temperature increases from 314°C to 331°C, while the tensile strength decreases from 63.3 ± 3.7 MPa to 58.7 ± 4.7 MPa, lower water absorption, and improved crystallization in response to external stimuli. The development of ferulic acid-based semi-aromatic polyamides in this work offers novel insights into the green advancement of sustainable engineering plastics.
研究领域:
高分子科学
·
可持续材料
·
绿色化学
·
工程塑料
·
生物基聚合物
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Jun He,Xiaojing Zhang,Chuyun Cheng,Shuwen Guo,Lu Wang,Weimin Kang,Jun Chen,Jing Yan
Thermal insulation materials are essential for preserving human warmth in cold climates, and biomimetic strategies inspired by natural structures offer powerful design principles. Motivated by the feather architecture of penguins, which endure year-round temperatures of approximately −40°C to −60°C, a high-performance thermal-insulation (HPTI) material that reproduces the key features of feather structure by balancing thermal resistance, ultralow mass, and mechanical flexibility is reported. The HPTI is fabricated via a two-step electrospinning process with tailored spinning parameters to produce a hierarchical, feather-like architecture: a fluffy, air-holding polyimide (PI) nanofiber aerogel paired with a compact PI nanofiber windproof membrane, yielding an ultralow bulk density of 4.15 mg/cm 3 . Surface hydrophobicity is excellent, with water contact angles of 147° (aerogel) and 130° (windproof membrane). The assembled material with an areal density of 190 g/m 2 achieves a thermal-insulation ratio of 97.81%, a clothing insulation (clo) value of 6.518, and a heat-transfer coefficient of 0.72 W/K·m 2 . Combined with favorable compressibility and mechanical compliance, these characteristics make the HPTI a promising candidate for lightweight, flexible garments and protective systems intended for extreme-cold applications, while offering a scalable route to bioinspired thermal-management materials.
研究领域:
材料科学
·
仿生学
·
热工工程
·
纳米技术
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）