ACS Omega
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2025
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IF 4.3
Hang Yin,Jingkai Nie,Yifan Wang,Shicheng Zhang,Ming Sun,Yi Tian,Chao Fan,Qiang He
Rubber vibration dampers in transformers require high oil resistance to ensure long-term stability in power facilities. Hydrogenated nitrile butadiene rubber (HNBR), characterized by its strong polarity and superior oil resistance, serves as an ideal matrix material. However, its high polarity often leads to poor carbon black (CB) dispersion and weak interfacial interactions with conventional oil-resistant additives, causing additive migration and reduced oil resistance. To address these challenges, tea polyphenol (TP), a polar small-molecule compound, was introduced as a multifunctional modifier and oil-resistant additive to improve the performance of CB/HNBR composites. The study demonstrated that TP acts as an interfacial bridge, where hydrogen bonding between the phenolic hydroxyl groups in TP and the nitrile groups in HNBR, along with π–π interactions between TP and CB, significantly enhances the CB-HNBR interface and promotes uniform CB dispersion. At an optimal TP content of 2 ppm rubber (phr), the CB/HNBR composites exhibited remarkable improvements in mechanical properties, with the 300% modulus, tensile strength, and tear strength increasing by 8.9, 9.4, and 18.5%, respectively, compared to the CB/HNBR composite without TP. Moreover, the formation of a polar network between TP and HNBR further enhanced the oil resistance of the CB/HNBR composites. Oil resistance tests revealed that the volume and mass change rates of the CB/HNBR composite with 2 phr TP decreased by 48.1 and 57.1%, respectively, indicating that TP effectively mitigates additive migration while reinforcing the oil resistance of the composites.
研究领域:
材料科学
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高分子复合材料
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化学工程
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机械工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2014
·Vol. 131
·期 21
·
IF 1.64
Yang Meng,Junfeng Chu,Chaohao Liu,Zheng Wei,Liqun Zhang
A series of poly(methylvinylsiloxane) elastomer (VMQ) composites with improved oil resistance were prepared by introducing uniform polar polymer phases into VMQ matrix through the in situ reaction of reactive polar monomers—hydroxyethyl methacrylate (HEMA) and hydroxypropyl methacrylate (HPMA)—during peroxide curing. Differential scanning calorimetry and Fourier transform infrared measurements demonstrated that HEMA and HPMA had high reactivity and most of the monomers participated in the in situ reaction during peroxide curing. Transmission electron microscopic images showed that the uniform nanophases with the diameters in the range of 20–50 nm formed in the VMQ vulcanizates. The generated nanophases could interact with silica to form a strong filler network in the VMQ matrix, resulting in a significant increase of the modulus at low elongation of the VMQ vulcanizates. With increasing the content of polar monomers, the tensile strength decreased slightly, the elongation at break, the hardness and the 100% modulus increased, but the 300% modulus decreased significantly due to the decrease of the crosslink density. The incorporation of HEMA or HPMA into VMQ matrix could significantly improve the oil resistance of polysiloxane elastomer, and the oil resistance of the composites containing HEMA was a little better than that of the composites containing HPMA. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40983.
研究领域:
高分子科学
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材料科学
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复合材料
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弹性体
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功能高分子
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纳米材料
✓ 已验证
DOI
高影响因子
Polymers
·
2019
·Vol. 11
·期 11
·1897
·
IF 3.164
Hui Yang,Haijun Ji,Xinxin Zhou,Weiwei Lei,Liqun Zhang,Runguo Wang
A novel elastomer poly(diethyl itaconate-co-butyl acrylate-co-ethyl acrylate-co-glycidyl methacrylate) (PDEBEG) was designed and synthesized by redox emulsion polymerization based on bio-based diethyl itaconate, butyl acrylate, ethyl acrylate, and glycidyl methacrylate. The PDEBEG has a number average molecular weight of more than 200,000 and the yield is up to 96%. It is easy to control the glass transition temperature of the PDEBEG, which is ranged from −25.2 to −0.8 °C, by adjusting the monomer ratio. We prepared PDEBEG/CB composites by mixing PDEBEG with carbon black N330 and studied the oil resistance of the composites. The results show that the tensile strength and the elongation at break of the composites with 10 wt% diethyl itaconate can reach up to 14.5 MPa and 305%, respectively. The mechanical properties and high-temperature oil resistance of the composites are superior to that of the commercially available acrylate rubber AR72LS.Keywords:bio-based diethyl itaconate;redox emulsion polymerization;composite;mechanical properties;high-temperature oil-resistant
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Yulan Jian,Wei Tang,Tianlu Xu,Dennis W. Hess,Xijuan Chai,Lianpeng Zhang,Kaimeng Xu,Zhichang Guo,Hui Wan,Linkun Xie
Wood is prone to absorb water or oil due to the chemical characteristics of its components, which significantly reduces its service performance. Consequently, superhydrophobic or superoleophobic wood has great development potential in the wood industry. We coated methyltrichlorosilane (MTCS) and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFDMS) on Birch wood surfaces by a chemical vapor deposition method. The modified wood showed superhydrophobicity and oleophobicity, with a water contact angle (WCA) of 157.7° and an oil contact angle (OCA) of 141.3°. Due to the large number of low surface energy groups bonded onto the wood surface, it showed extremely strong repulsion to liquid water, oil and even gaseous water. Moreover, the superhydrophobic coating exhibits excellent mechanical and chemical stability and thereby allows long-term use in harsh outdoor environments.
研究领域:
材料科学
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木材工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jiansheng Qiu,Tengteng Dong,Chenchen Cai,Yongfei Liu,Fangyuan Tang,Qingdi Hu,Xunxiao Wu,Xusheng Li
Pulp-molded utensils (PMUs) are gaining attention as biodegradable alternatives to petroleum-based plastics, yet their adoption is hindered by poor freeze–thaw durability and the lack of fluorine-free oil resistance strategies. Here, a bio-based and scalable approach was presented to fabricate robust, oil-resistant PMUs by leveraging lignin-driven fiber welding and conformal coating with poly(3-hydroxybutyrate- co -4-hydroxybutyrate) (PHB). Residual lignin undergoes thermocompression-induced self-fusion and inter-fiber crosslinking, enhancing structural cohesion and network densification. Simultaneously, co-melted lignin and PHB form a continuous surface barrier, imparting superior oil repellency (Grade 12) and effectively blocking hot oil penetration. The resulting PMUs exhibit high density (0.83 g cm −3 ), low porosity (42.49 %), and mechanical strength up to 25 MPa, while maintaining integrity over multiple freeze–thaw cycles. Life cycle analysis confirms full biodegradability and a reduced carbon footprint. This lignin-enabled strategy offers a sustainable and high-performance route for disposable tableware.
研究领域:
材料科学
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高分子科学
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环境工程
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生物技术
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可持续制造
✓ 已验证
DOI
高影响因子
Polymer Chemistry
·
2025
·
IF 3.9
Manman Jia,Tianxi Li,Zhiwei Yang,Lin Wang,Dongmei Yue
Hydrogenated nitrile butadiene rubber (HNBR) is extensively applied in aerospace, automotive, petrochemical, and defense industries. However, its inherent trade-off between oil resistance and low-temperature resistance, along with insufficient low-temperature behavior, restricts its use in extreme environments. In this study, we report a molecular-level design strategy for the preparation of a novel HNBR derivative containing pendant vinyl groups (HENBR-V-Cx) that combines enhanced low-temperature performance with post-functionalization potential. HENBR-V-Cx was synthesized via ring-opening and subsequent esterification of hydrogenated epoxidized nitrile butadiene rubber (HENBR) with unsaturated fatty acid monomers. This modular synthetic approach enables precise tuning of the side-chain architecture—including side chain length, grafting density, and molecular weight—allowing the glass transition temperature (Tg) to be reduced from approximately -20 °C to −40 °C, thereby significantly enhancing the low-temperature resistance while maintaining oil resistance. The pendant vinyl groups improved vulcanization efficiency, allowing high crosslink density and tensile strength (25.8 MPa) to be achieved with lower curing agent loadings. Furthermore, pendant vinyl groups also serve as reactive handles for post-functionalization. Fluorinated HENBR-V-Cx, obtained via cross-metathesis, exhibited improved hydrophobicity with a water contact angle (WCA) of up to 116°. A superhydrophobic coating with a WCA of up to 150.7° was fabricated by compounding fluorinated HENBR-V-Cx with nano-SiO₂, demonstrating strong potential for anti-corrosion and self-cleaning applications. This work establishes a versatile and expandable platform for HNBR modification, bridging molecular design with performance optimization and application-driven functionalities.
研究领域:
高分子科学
·
材料工程
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化学改性
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表面工程
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工业应用
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2024
·
IF 4.1
Shengqiang Wang,Zhenbo Peng,Yanhua Huang,Mingquan Zhu,Yayun Liu,Yong Zhang
Phenyl-containing polysiloxanes have better thermal stability, low-temperature flexibility, and room-temperature damping performance than polydimethylsiloxanes. Poly [dimethylsiloxane- co -methyl (phenyl)siloxane] and poly (dimethylsiloxane- co -diphenylsiloxane) were synthesized through a bulk copolymerization of octamethylcyclotetrasiloxane and methylphenylcyclosiloxane mixture or octaphenylcyclotetrasiloxane, and the structure and properties of the copolysiloxanes were comparatively studied. The phenyl content in poly [dimethylsiloxane- co -methyl (phenyl)siloxane] can be as high as 50 mol%. With the increment of the phenyl content, the thermal stability of the copolysiloxanes is dramatically improved as evaluated by thermal gravimetric analysis. At a given phenyl content, poly [dimethylsiloxane- co -methyl (phenyl)siloxane] has higher thermal stability than poly (dimethylsiloxane- co -diphenylsiloxane). The former is more difficult to crystalline at low temperatures and has lower room temperature viscosity than the latter as confirmed by differential scanning calorimetry and rotational rheometer. The copolysiloxanes is mixed with hydrogen-containing polysiloxane and silica, and vulcanized at elevated temperature to get copolysiloxane composites with good damping properties, oil resistance, and low-temperature resistance. This study not only enriches the fundamental academic research on functional polysiloxanes, but also provides useful technical references for practical applications of phenyl silicone rubber.
研究领域:
高分子科学
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材料科学
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化学工程
✓ 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）