JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 136
·期 46
·48210
·
IF 2.188
Lixiang Shen,Yingying Lai,Heqing Fu
In this work, a flower clusters-like superhydrophobic surface was fabricated via an ultraviolet (UV) curable coating of octadecylamine (ODA) and vinyl-terminated polydimethylsiloxane (V-PDMS). ODA self-assembled into many flower clusters-like structures on the surface of the coating, increasing the roughness of the coating surface without additional nanoparticles. V-PDMS formed a highly crosslinked network under a UV lamp, which would be helpful for a robust superhydrophobic surface. The obtained PDMS/ODA fabric showed water contact angle of 161° and sliding angle of 5°. The durability of the superhydrophobic surface was tested by water impacting, tube brush scrubbing, knife scratching, hand twisting, finger pressing, tape adhesion, abrasion, continuous rinsing, and chemical conditions. The experimental results indicated that the superhydrophobic surface have good durability for long service life. Moreover, the PDMS/ODA fabric could selectively absorb oils from water with good separation performance. This work will provide a facile, low cost, and versatile method to prepare superhydrophobic surfaces, and enhance their efficiency of oil–water separation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48210.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2012
·Vol. 126
·期 3
·954-959
·
IF 1.289
Chunhui Shen,Zhihan Guo,Cheng Chen,Shanjun Gao
Proton-conductive inorganic–organic hybrid intermediate-temperature membranes were prepared from 3-glycidoxypropyltrimethoxysilane (GPTMS) and 1-hydroxyethane-1,1-diphosphonic acid (HEDPA) by sol–gel process. To prevent the leaching out of phosphonic acid, triethylamine was used as catalyst to promote the reaction of HEDPA and GPTMS to immobilize phosphonic acid groups. Fourier transform infrared spectra revealed that phosphonic acid groups of HEDPA were chemically bounded to organosiloxane network as a result of the reaction of P OH of HEDPA and epoxy ring of GPTMS. TG-DSC results indicated that the hybrid membranes were thermally stable up to 250°C. The proton conductivity of the hybrid membranes increased with temperature from 30 to 130°C. The proton conductivity of hybrid membrane with the molar ratio of GPTMS/HEDPA = 2/1 can reach up to 1.0 × 10 −3 S/cm under anhydrous condition at 130°C, which reveals that this membrane is a promising proton exchange membrane for intermediate-temperature proton exchange membrane fuel cell. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2014
·Vol. 131
·期 13
·
IF 1.64
Zhan-Lin Gong,Lan Cen,Shu-Ting Wang,Fu-Lin Chen
Maleated glycidyl 3-pentadecenyl phenyl ether (M-GPPE) was synthesized from glycidyl 3-pentadecenyl phenyl ether (GPPE), a renewable derivative from cardanol, with maleic anhydride (MAH) by grafting copolymerization. The resulting M-GPPE was used as a functionalized plasticizer for a styrene–butadiene rubber (SBR)/carbon black (CB)/silica composite. The effects of M-GPPE on the development of the filler network, the extent of silica dispersion, the curing characteristics, and the mechanical performance of the composites were studied. Meanwhile, a comparative study was performed between M-GPPE and aromatic oil, a traditional plasticizer used in SBR filler formulations. Gel permeation chromatography and IR and 1 H-NMR analysis results confirmed the occurrence of the grafting reaction between GPPE and MAH and the potential structure of M-GPPE. The thermostability of GPPE was improved by grafting copolymerization with MAH, as shown by thermogravimetric analysis results. The presence of M-GPPE resulted in a shorter curing time and better aging properties in the SBR composite compared with GPPE. The mechanical properties, dynamic mechanical analysis, and transmission electron microscopy analysis showed that the maleate of GPPE could enhance the compatibility between SBR and silica, improve the dispersion of silica in SBR, and partially replace the aromatic oil in the SBR/CB/silica composite formulation. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40462.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Chen Peng,Chengjie Li,Ennan Shi,Chao Gao,Jiahe Yu,Xiaoxing Zhang,Yunjian Wu
Epoxy resin is widely used in electrical and electronic applications because of its excellent electrical insulation and mechanical strength. However, its three-dimensional crosslinked network makes end-of-life components difficult to recycle. Reprocessable thermosetting epoxy resins (vitrimers) provide a pathway toward circular utilization but still suffer from incomplete interfacial healing and property deterioration during hot-press recycling. To enhance recycled-material performance, this study proposes a triethanolamine (TEOA)-induced interfacial reinforcement strategy. The results demonstrate that TEOA reduces the transesterification energy barrier and accelerates interfacial network reconstruction by forming multiple hydrogen bonds with pendant hydroxyl groups and ester linkages in the epoxy network. The recycled samples exhibit improved interfacial bonding, electrical insulation performance, and mechanical properties. At 10 MPa, TEOA increases the breakdown strength by 9.4%, reduces the dielectric loss at 50 Hz by 18.1%, and increases the tensile strength by 7.5%. Relative to the pristine epoxy vitrimer, the 5 wt% TEOA-containing recycled sample processed at 200°C and 10 MPa for 2 h retains 95.6% of the breakdown strength and 96.1% of the tensile strength. These results demonstrate that TEOA-assisted interfacial modification promotes dynamic covalent network reorganization and improves property recovery during epoxy vitrimer recycling.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2016
·Vol. 134
·期 15
·
IF 1.866
Ming He,Buning Zhang,Yao Dou,Guoqiang Yin,Yingde Cui
Feather keratin (FK), which can be extracted from waste feathers, is a kind of biodegradable and renewable protein resource and it has a great potential in the field of materials such as keratin sponges, films, and microcapsules. The aim of the current study was to investigate the blend modification of FK-based films using sodium alginate (SA). A series of FK-based films blended with different ratios of SA were prepared by the casting process. The cross-section of blend films had a compact and homogeneous structure and no distinct phase separation was observed, indicating the favorable compatibility between FK and SA. The result of DSC analysis, in which there was a change in crystal structure, confirmed the interaction between FK and SA in the blend films. The FTIR spectra pointed out that the main interaction between the two components would be through the formation of hydrogen bonds. The incorporation of SA to FK significantly enhanced the strength and maintained the extensibility of the resultant films. The water vapor permeability reached its lowest level when the ratio of FK to SA was 7:3. Moreover, the blend films exhibited a relatively high level of transparency with SA content below 30%. These improvements by incorporation of SA provided the potential to expand the application of FK-based films in packing and bio-medical industries. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44680.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Siyu Wu,Peng Xu,Lei Pu,Shuya Wu,Delong Xu,Shengbin Zeng,Jingwei Liu
Conventional polymer gels may suffer from thermal degradation and salt-induced changes under severe downhole conditions. In this study, an AM/SA/AMPS/NVP crosslinked copolymer gel was synthesized by aqueous free-radical polymerization using MBA as the crosslinker. The formulation was optimized through a sequential single-factor approach, and the resulting gel was characterized in terms of network morphology, thermal stability, swelling behavior, compressive mechanical properties, salt resistance, and plugging performance. The gel retained 89.4% of its volume after aging at 140°C for 48 h and showed a uniaxial compressive strength of 0.203 MPa, with nearly 100% recovery after 10 loading–unloading cycles at 50% strain. The pure gel sealed fractures with widths of 1–3 mm, while the addition of 10 wt% 20–40 mesh quartz sand increased the breakthrough pressure to 2.05 MPa for a 3 mm fracture. In 20–40 mesh sand beds at 140°C, the total fluid loss after 30 min was 26.8 mL. These results indicate that the crosslinked copolymer gel provides favorable thermal, mechanical, and plugging performance, while quartz sand bridging improves the pressure-bearing capacity of the sealing structure in wide fractures.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Yibo Gao,Changyan Guo,Yubin Wang,Kefu Wang,Hengyang Zhu,Jide Wang
Traditional titanium-based catalysts for polyethylene terephthalate (PET) synthesis suffer from serious TiO 2 aggregation, poor dispersion, and an inability to balance catalytic activity and anti-yellowing performance, limiting their practical application. To address these issues and promote the green substitution of antimony-based catalysts, a SiO 2 /TiO 2 composite catalyst was prepared via a sol–gel method using tetraethyl orthosilicate and tetrapropoxysilane as dual silicon sources and titanium isopropoxide as the titanium source. The dual-silicon strategy enabled the formation of stable Ti–O–Si interfacial bonds, which suppressed TiO 2 agglomeration, improved catalyst dispersion, and modulated the Lewis acidity of Ti 4+ sites. The catalyst exhibited a high specific surface area (443.8 m 2 g −1 ) and uniform Ti 4+ distribution. At a low dosage (0.005 wt%), it afforded PET with an intrinsic viscosity of 0.706 dL g −1 , a viscosity-average molecular weight of 19,985 g mol −1 , and the Hunter b coordinate is 3.69, outperforming pure TiO 2 . Notably, the catalyst required no high-temperature calcination and was obtained by room-temperature stirring and low-temperature vacuum drying. With low cost and good structural stability, it shows promising potential for industrial PET production.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Bingqian Guo,Yamin Cheng,Xiaohong Li,Zhijun Zhang,Zhiwei Li
Polypropylene (PP) is widely used in polymer products, but its high flammability and the poor resistance to water exposure of ammonium polyphosphate (APP)-based flame-retardant systems limit broader applications. Herein, a lanthanum-assisted core–shell flame retardant (LAPP@M) was fabricated by La 3+ modification of APP followed by microencapsulation with an HDI-cross-linked β-cyclodextrin shell. The hybrid structure integrates acid source, gas source, bio-based carbon source, and catalytic functionality within one particle. Structural analyses confirmed the formation of a La-modified APP core and organic shell, which changed the particle surface from hydrophilic to hydrophobic. With only 15 wt% LAPP@M, PP achieved a UL-94 V-0 rating and an LOI of 29.5%, and retained the V-0 rating after 72 h of static water immersion, demonstrating improved short-term resistance of the flame-retardant performance to water exposure. Cone calorimetry showed that the peak heat release rate and total heat release were reduced by 75.2% and 26.3%, respectively, relative to neat PP. Char analysis, Raman spectroscopy, TG-FTIR, and TGA revealed that La promoted condensed-phase charring, while the β-cyclodextrin shell improved water resistance, interfacial compatibility, and char formation. This work provides an effective particle-engineering strategy for flame-retardant PP composites with improved resistance to short-term water exposure.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 3.1
Yan-Jie Yang,Dan Bao,Biao Wang,Tao-Song Liang,Zhi-Peng Miao,Hua Li,Bo-Ran Xing,Peng Zhang
Wellbore instability is a critical challenge in oil and gas drilling. Conventional LCMs adopt physical sealing with poor bonding efficiency, which restricts their wellbore strengthening performance. A novel self-healing CKGB based on reversible covalent disulfide bonds was developed for drilling fluid wellbore stability enhancement. FT-IR spectroscopy, DSC, and in situ FT-IR spectroscopy verified its successful synthesis, thermal stability and dynamic reversible disulfide bond exchange (bulk bonding efficiency 75%, heat resistance up to 120°C). CKGB enhanced rock mechanical properties, increasing compressive strength of sandstone and shale by 395.3%/71.7%, respectively, and the rock cementation strength by 809.1%. CKGB also inhibited hydration swelling and maintained good performance under high temperature and high salinity. Drilling fluids modified with CKGB achieved a ≥ 68% reduction in HTHP fluid loss at 120°C–160°C, and low sand-bed filtration and micro-fracture leakage; SEM and EDS confirmed the formation of a dense pressure-bearing sealing layer in pores and fractures, providing an effective solution for wellbore-stability enhancement in unstable formations.
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DOI
高影响因子
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