JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Lei Niu,Lingfeng Yang,Yi Zhang,Yanqing Wang,Yanlei Qu,Zuochen Zhu,Yuxuan Liu,Shengqin Dai,An Li
With the development of the global clean energy wind power generation industry, discarded wind turbine blades have become new solid waste, posing new challenges to global environmental issues. Here we report a high-value application for the preparation of aerogel materials by mixing wind turbine blades with chitosan and high-temperature carbonization (CTS-FB@C). The powder of wind turbine blades was degraded by ethylene glycol, and the main polymer component, epoxy resin, was degraded into small-molecule short polymers with a yield of 82%. CTS-FB@C organic–inorganic hybrid aerogel, prepared by chitosan (CTS) gelation, directional freeze-drying, and high-temperature carbonization, has a low density of 0.086 g cm −3 and a high porosity of 91.17%, with a top water contact angle of 108.62° and a bottom water contact angle of only 36.31°. In the visible light range of 380–780 nm, a high light absorption rate of 89.56% for CTS-FB@C aerogel was obtained. Owing to its excellent porosity, hydrophilic wettability, and better light absorption, the as-prepared aerogel has an interfacial evaporation rate of 1.47 kg m −2 h −1 within 1 h under simulated 1 kW m −2 sunlight. This study pioneers a sustainable strategy for upcycling decommissioned wind turbine blades into functional materials, while simultaneously addressing global freshwater scarcity.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·
IF 2.8
Mengsha Yin,Shuhua Tu,Jie Feng
Energy conservation in buildings has become a crucial approach to alleviating the energy crisis and reducing carbon emissions. Thermal insulation coatings are one of the effective methods for energy conservation in buildings. In this study, hollow polystyrene microspheres (HPMs) with varying particle sizes and enhanced thermal insulation performance were synthesized via seeded emulsion polymerization combined with alkali swelling. By adjusting the initiator content, core particle sizes were controlled between 142 and 354 nm, yielding HPMs with particle sizes ranging from 364 to 550 nm and cavity diameters from 127 to 370 nm. At a 40 wt% HPMs-0.775 loading, the composite coating exhibited enhanced solar reflectance (98.1% ± 0.7%) due to the synergistic effects of light reflection and thermal insulation from the hollow interiors. The coating's average transmittance was 6.5% ± 1.3%, and its average reflectance reached 43.1% ± 1.4%. The thermal conductivity of the coating (0.1098 ± 0.0056 W/m K) was found to be significantly lower than that of all other tested compositions.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·
IF 2.8
Yu-Xiang Jia,Lin Xie,Xiao-Guang Xu,Meng Wang
The nonsolvent induced phase separation (NIPS) method and its variants have garnered significant attention for the fabrication of ion-exchange membranes (IEMs) due to several potential advantages, including ease of scalability, reduced material requirements, and enhancements in operational performance. However, the hazards associated with traditional membrane fabrication solvents poses a considerable limitation to the advancement and application of NIPS. This study explores the use of a green solvent, specifically γ-valerolactone (GVL), for the first time in the preparation of IEMs via the NIPS technique. Initially, fundamental investigations, including thermodynamic and kinetic analyses of the casting solution composed of GVL and chloromethylated polysulfone (CMPS), as well as assessments of membrane morphology and electrochemical properties, are conducted to evaluate the feasibility of IEM production in comparison to the NMP/CMPS system. Additionally, some applied experiments, such as desalination by electrodialysis (ED) and acid recovery via diffusion dialysis (DD), are performed to examine the impacts of casting solution composition on the performances of the resulting membranes. The results from the ED experiments indicate that the membrane produced from a 19 w.% GVL/CMPS solution can achieve a 27% reduction in energy consumption while maintaining a comparable current efficiency to commercial membranes. Furthermore, the DD experiments reveal that this membrane exhibits a H + dialysis coefficient of 42 × 10 − 3 $$ 42\times {10}^{-3} $$ m/h and a separation factor of 256, significantly surpassing the performance metrics of commercial membranes. These findings clearly demonstrate that GVL is a viable green solvent for the preparation of polysulfone IEMs with highly competitive performance characteristics.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 29
·e55670
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IF 2.7
Jinyun Cui,Huaping Wang,Xinyi Chen,Ze Kan,Zhibo Li
Poly(butylene-adipate-co-terephthalate) (PBAT) is recognized for its advantages as a biodegradable thermoplastic polyester. However, its application is often limited due to low strength and poor processability. In contrast, poly(4-hydroxybutyrate) (P4HB) emerges as a fully biodegradable polyester characterized by high strength, excellent toughness, and facile processing. In this study, P4HB was employed to reinforce PBAT, and glycidyl methacrylate grafted onto poly(4-hydroxybutyrate) (P4HB-g-GMA) was introduced as an effective compatibilizer to address their inherent incompatibility. The study explored the influence of P4HB-g-GMA content on the mechanical, thermal, morphological, and rheological properties of the blends. The findings revealed that P4HB-g-GMA significantly enhanced the compatibility, mechanical properties, and melt strength of PBAT/P4HB blends. Furthermore, various PBAT/P4HB foams were prepared through a batch foaming process, employing supercritical CO 2 as a physical foaming agent. The volume expansion ratio and cell size of PBAT/P4HB foams increased with higher levels of the compatibilizer.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2024
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IF 2.7
Yu He,Zhenyu Zhang,Haosen Ma,Yan Zhou,Xinxin Tian,Dekun Sheng,Xiangdong Liu,Yuming Yang
Passive cooling is a cooling technology that does not require external energy input, with most passive cooling strategies having high manufacturing difficulty and cost. In this study, we prepared lightweight aerogels (0.093 g/cm 3 ) with high porosity (91.3%), directional pores, enhanced elastic recovery performance, and lower thermal conductivity (0.046 W/mK) through simple mixing, directional freezing, and freeze-drying. The prepared samples have a reflectance of 87% in the ultraviolet—visible—near-infrared (UV-Vis-NIR) range (0.2–2.5 μm) and an emissivity of 93.6% in the atmospheric transparency window. After covering the box with axial and transverse aerogel samples, the temperature inside the box relative to the uncovered sample box decreased by 12.9 and 13.4°C, respectively. This work provides a feasible method for the research of simply prepared passive cooling materials.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2024
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IF 2.7
Kai Hu,Zhuo Wang,Hu Wang,Kanshe Li
A method for constructing a water-soluble supramolecular polymer responsive to silver ion (Ag + ) is achieved through the host–guest interaction between γ-cyclodextrin (γ-CD) and bis(phenyl ethenyl)pyridine guest monomer. Upon the addition of silver hexafluorophosphate (AgPF 6 ) into the solution of the supramolecular polymer, precipitates of silver bromide (AgBr) and bis(phenyl ethenyl)pyridine monomer-PF 6 were formed in the solution, leaving only the host molecule γ-CD. Therefore, the supramolecular polymer can be dissociated by AgPF 6 . Here, we provide a new strategy to fabricate water-soluble supramolecular polymer with metal ion responsiveness. This method is expected to be applied in aqueous environments, to enrich the field of supramolecular chemistry and to promote the development of advanced materials with excellent properties.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·
IF 2.8
Jingguang Wang,Yutao Lin,Tao Wang,Zhenze Xie,Wenxin Guo,Chang Du
Cancer treatment techniques often struggle to simultaneously address the issues of significant impact from cancer heterogeneity, poor resistance to drugs, and non-selective drug toxicity. Therefore, cancer treatment strategies based on nanoplatforms with multiple responsive properties have attracted wide attention due to their broad applicability and minimal side effects on normal cells. Herein, we constructed a nano iron-based metal–organic framework loading Pt and coated with polydopamine (Fe-MOF-NH 2 @Pt@PDA) using the solvothermal method for multimodal cancer therapy. The Pt and Fe could leverage the unique weak acidity and overexpression of hydrogen peroxide in the tumor cell to generate reactive oxygen species (ROS) for chemodynamic therapy (CDT). Additionally, Pt and Fe gave its peroxidase-like activity to produce oxygen, improving the hypoxic environment in the tumor microenvironment. Due to Pt, Fe-MOF-NH 2 @Pt@PDA achieved excellent sonodynamic therapy (SDT) under ultrasound (US) stimulation. Under US, more ROS were generated, enhancing the anticancer effect of CDT. Moreover, Fe-MOF-NH 2 @Pt@PDA produced an excellent photothermal effect under 808 nm near-infrared (NIR) irradiation for photothermal therapy (PTT). Furthermore, Fe-MOF-NH 2 @Pt@PDA exhibited good biocompatibility. Taken together, the nano Fe-MOF-NH 2 @Pt@PDA with synergistic CDT, SDT, and PTT combined treatment was a promising biomaterial for non-invasive clinical cancer therapy.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Weiyi Kong,Jinbo Jin,Kaizhou Zhang,Min Li,Mingmi Wu,Xiaoqin Long,Man Yang
This study proposes a novel methodology for constructing functional separation membranes on polyvinylidene fluoride (PVDF) substrates through precise modulation of polyethyleneimine (PEI) macromolecular chain conformation in solvent systems with varying polarity parameters. Preparation of PVDF/styrene-maleic anhydride copolymer (SMA) blend membranes via non-solvent induced phase separation (NIPS). Surface functionalization is achieved through covalent crosslinking between PEI and anhydride groups on PVDF/SMA membranes. Systematic investigation reveals that solvent polarity (water, ethanol, glycero, and liquid paraffin) critically influences PEI chain conformations, governing both the separation layer microstructure and decolorization efficiency. The water-induced PEI (S1) membrane exhibits a synergistic separation mechanism combining size sieving and electrostatic interaction, achieving Congo red retention rates exceeding 99% and methyl blue retention over 90%. Compared to PEI (S1) membrane, PEI (S4) membrane treated with liquid paraffin shows a 60% decrease in permeation flux. In addition, the PEI (S1) membrane maintains 98.5% separation efficiency in continuous dye purification tests. This study contributes novel theoretical perspectives to macromolecular conformation engineering and establishes PVDF composite membranes with excellent permeability.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
·
IF 2.8
Yuxuan Zhao,Jun Hu,Jiangzhou Luo,Honglei Ling,Song Xue
Network polyimide was a promising precursor for advanced carbon molecular sieves (CMS) membrane fabrication, since its firm cross-linked structure could effectively prevent the collapse of micropores during the high-temperature pyrolysis process. In this study, the network polyimide (PI) was prepared by polycondensing reaction among the triamine monomer TAPA, the brominated diamine monomer MPD-Br, and the anhydride monomer 6FDA, and the resulting PI was then used as a precursor for CMS membranes. Notably, the introduction of the TAPA monomer can build a robust network structure in the PI precursor, effectively prevent the shrinkage of micropores during the carbonization process, and further optimize the proportion of ultra-micropores within the membrane. Meanwhile, the brominated diamine monomer MPD-Br has the ability to adjust the cross-linking density of PI. Besides, it can assist with the carbonization by means of the thermally induced debromination process to regulate the gas separation performance of the CMS membrane. Experimental results demonstrated that after the debromination and carbonization process, the d -spacing, BET specific surface area, and the proportion of ultra-microporous structures of the resultant CMS membrane were obviously increased. For instance, the d -spacing of the 6F-TA:MPD-Br (5:1)-550 membrane was enlarged to 11.61 Å, and its specific surface area by BET was increased to 655.10 m 2 /g, with a significant increase in the proportion of ultra-microporous structures to about 76%. The change in structure resulted in a significant improvement in gas separation performance. Specifically, the 6F-TA:MPD-Br (5:1)-550 membrane achieved a CO 2 permeability as high as 2399.78 Barrer and a CO 2 /CH 4 selectivity of 43.07, approaching the 2019 Robeson upper bound. We anticipate that this current study could offer a new insight into the rational design of CMS membranes having excellent gas separation performance, particularly those derived from the network PI precursors containing bromine groups. Graphical Construction of CMS from bromine-containing monomers: synthesis, pore structure and CO 2 plasticizing properties.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Bo Zhu,Wenliang Xu,Hao Sun,Bo Yang
Cross-linked polyethylene (XLPE) insulation materials produce water tree aging under the combined action of moisture and electric field for a long time, resulting in a decline in insulation performance and a serious threat to the safety of power system operation. In view of the above problems, a three-layer shell–core microcapsule with siloxane as a repair agent was designed in this article, and it was distributed in the XLPE matrix material in a gradient manner to realize the self-healing of the material to water tree aging. The results showed that the microcapsules had good morphology. When the doping concentration of the microcapsules is low (1.0 wt%), it can also have an excellent water tree aging repair effect on the basis of ensuring the original insulation performance of XLPE. The repair effect of microcapsules/XLPE composites with gradient distribution is better than that of microcapsules/XLPE composites with uniform distribution, which solves the problem of low repair efficiency of uniform distribution and has a good research prospect in practical application.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Li Tian,Ronghua Chen,Jiang Tan,Fan zhang,Junhong Guo,Bo Mu
To enhance the flame retardancy and smoke suppression performance of epoxy resins (EP), this study reports the synthesis of a high-efficiency flame retardant (SLDH-Ni-KD) through sequential intercalation modification and surface functionalization of layered double hydroxide (LDH). The optimized design addresses both the flame-retardant efficacy enhancement and the inherent compatibility limitations of LDH in EP matrices. Comprehensive combustion characterization was conducted through thermogravimetric analysis (TGA), cone calorimetry testing (CCT), limiting oxygen index (LOI) determination, and UL-94 vertical burning assessment. The underlying flame-retardant mechanism was systematically investigated using scanning electron microscopy, Raman spectroscopy, and thermogravimetry-infrared spectroscopy analysis of char residues. Experimental results revealed that the synergistic interaction between LDH and DOPO components, combined with the bi-phase catalytic charring effects mediated by magnesium/aluminum ions, enabled the 7% SLDH-Ni-KD/EP composite to achieve exceptional fire safety performance. Specifically, the composite demonstrated an elevated LOI value of 33.8% ± 0.1%, accompanied by substantial reductions in total heat release (THR) and smoke production rate (SPR). Mechanical property assessments identified 5 wt.% SLDH-Ni-KD as the optimal loading for maintaining EP matrix compatibility. This work successfully develops an innovative LDH-based nano-flame-retardant system that integrates high-efficiency fire-retardant and smoke-suppressing functionalities, establishing a novel multielement synergistic strategy for polymer flame retardancy.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Xiaohua Gu,Shangwen Zhu,Chin Hao Chong
Polyisocyanurate (PIR) foam is a modified polyurethane material that cannot be easily degraded using conventional methods. A process route for degrading PIR waste via alcoholysis was investigated in this study. The effects of conditions such as the type of alcoholysis agent, amount of alcoholysis agent used, duration of alcoholysis, ratio of two-component alcoholysis agent compounding, and amount of catalyst were discussed. The optimum alcoholysis process parameters for waste polyisocyanurate and the use of alcoholysis products for preparing recycled PIR were determined. It was found that the alcoholysis material obtained from the alcoholysis of PIR using diethylene glycol or butylene glycol had low viscosity. The compound ratio of butylene glycol: diethylene glycol a = 43:57 was found to be the best two-component alcoholysis type and ratio under the experimental conditions of alcoholysis time = 2 h, alcoholysis temperature = 180°C, and catalyst = 0.3 w% NaOH; the viscosity of the alcoholysis material was 2351 mPa·s. The resulting recycled-PIR foams showed the best thermal stability and compressive strength and demonstrated the best compressive properties. They had a 17.6% lower thermal conductivity and 12.7% higher compressive strength compared with those of commercially available PIR shells.
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高影响因子
危险品化学品经营许可证（带存储）