INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2018
·
IF 3.141
Fan Lei,Bingyu Wu,Haoyang Sun,Feng Jiang,Junlong Yang,Dazhi Sun
Hydrophobic graphite fluoride (GrF)-reinforced epoxy coatings are fabricated on steel substrate with a simple, solventless, and surfactant-free approach. The contact angle can be enhanced from 72° to 103° after the introduction of 1 wt % GrF to epoxy, suggesting the superior hydrophobic surface. The composite coatings on steel substrate exhibit the prominent corrosion protection performance as revealed by electrochemical impedance spectroscopy. The mechanism responsible for the corrosion resistance enhancement can be attributed to the synergistic effects of electrical insulating, water repellent, and barrier properties, resulting from the well-dispersed superhydrophobic GrF platelets in epoxy matrix. Moreover, 1 wt % GrF/epoxy coatings also present significant scratch resistance performance due to the uniform dispersion of the inorganic platelets and the enhanced storage modulus. The results indicate that constructing GrF/epoxy coatings with improved corrosion protection and scratch resistance property are capable of preventing metals suffering from corrosion attack and crack damages with a scalable fashion.
研究领域:
材料科学
·
表面工程
·
腐蚀防护
✓ 已验证
产品关联
DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2023
·
IF 6.2
Simei Peng,Linyuan Luo,Renzhao Wu,Zhuwu Yi,Yishun Wuliu,Pu Shi,Jin Zhu,Jianxiang Feng,Yuejun Liu
We demonstrated an innovative strategy to synthesize a biobased multifunctional anti-scratch agent (BCP) based on biomass cardanol, and its properties impact for polypropylene (PP) was investigated. The scratch behavior analyses show that incorporation of BCP tremendously ameliorates scratch visibility, greatly decreases scratch depth, color difference and kinetic friction coefficient for PP, which owing to the lubricating layer induced by BCP migration onto the polymer surface . Meanwhile, the addition of BCP greatly increases the initial thermal decomposition temperature of PP and improves the impact strength , mainly benefitting from BCP intramolecular synergism. Furthermore, the constituting concept of novel green BEP enriches the design of polymer additives , with potential expansion into other biomass functionalization with multifunctional variations.
研究领域:
材料科学
·
生物基材料
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
NPG Asia Materials
·
2023
·Vol. 15
·期 1
·1-8
·
IF 9.7
Wen Zhixuan,Zhou Teng,Xu Qian,Chen Weipeng,Xin Weiwen,Kong Xiang-Yu,Jiang Lei
Shellfish with rigid shells prevent damage to their delicate internal cores, and their soft bonding muscles drive the opening and closing of the shells. This synergism of rigid and soft materials provides shellfish with unique environmental adaptation. Inspired by the structural characteristics of mussels, a riveting layer was introduced into hydrogel-plastic hybrids for bonding hydrogel networks and plastic substrates. The bonding strength of the hydrogel on the polypropylene (PP) substrate was approximately 1.52 MPa, and the interface toughness reached 1450 J m −2 . Furthermore, the integration of plastics and microscale hydrogels, as well as abscised or prefabricated hydrogels, could also be fabricated through the same process. By using this strategy, a hydrogel-plastic hybrid-based device with temperature responsiveness and scratch resistance was fabricated and could mimic the basic activities of mussels. This work improves the functional materials used in programmable engineering systems and could facilitate the construction of intelligent robots.
研究领域:
材料科学
·
仿生学
·
工程学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Yongchang Guo,Shaowei Feng,Jie Fu,Yafeng Yang,Run Zheng,Hui Wang,Jianqiang Li
Lenses with high transmittance, high refractive index and excellent scratch resistance are in urgent need for cameras in high-end smartphones, and existing resin lenses exhibits intrinsic upper limits in those properties. Glass, with its naturally high refractive index and mechanical properties , is considered an ideal candidate for high-end lenses, however, due to the lack of targeted design, the intrinsic hardness, modulus and fracture toughness of conventional glass are low and its scratch resistance is inadequate. Here, we combined multi-compositional design and structural modulation of high mechanical lens glass with high-entropy concept, and successfully prepared multi-component 31.6RO-4.1Y 2 O 3 -23.7TiO 2 -7.4ZrO 2 -33.2Al 2 O 3 (R = Ba, Sr, Ca) glasses with ultra-high hardness (11.06 GPa), modulus (147.6 GPa) and indentation fracture toughness (1.334 MPa m 0.5 ). The excellently comprehensive properties of the glass are attributed to the synergistic effect of multiple high dissociation energy and high field strength oxides, which leads to the movement of low-coordinated Al [4] to the higher-coordinated Al [5] /Al [6] .
研究领域:
材料科学
·
光学
·
机械工程
✓ 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）