JOURNAL OF CULTURAL HERITAGE
·
2014
·
IF 1.111
Mingyuan Sun,Jiahe Wang,Hui Zhang,Bingjian Zhang,Zaixuan Fan,Bomin Su
The study of how to remove the ineffective conservation materials without damaging the mural's surface has been one of the hot issues of modern conservation science, and the reversibility problem of mural protective materials needs to be resolved instantly. In this article, we measured the reversible rates of 4 typical protective agents both on glazed tiles and model samples of Dunhuang murals, and used 3D microscopic system to observe the removal effect. The experimental results show that the cleaning agents should not contain water considering the water-soluble binding material of Dunhuang murals. All conservation materials are reversible, but their reversibilities are different. We obtained the best pairs of “conservation material-cleaning agent”, which are “silicone-acrylic emulsion-p-xylene + propylene carbonate”, “acrylic emulsion-p-xylene”, “polyvinyl acetate emulsion-p-xylene + ethyl acetate” and “Paraloid B72-p-xylene + propylene carbonate”. It is also found that the reversible rate of conservation materials declines after aging.
研究领域:
文物保护
·
材料科学
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Yihao Yang,Yuanyuan Tu,Xuefeng Gui,Zhijun Liu,Yaodong Zhang,Xiaohua Cui,Zhenzhu Huang,Zehui Dai
The implementation of conventional superhydrophobic surfaces (SHPOs) preparation method on a broad scale is constrained by its complexity, low wear resistance, as well as its reliance on potentially harmful fluorine-containing chemicals, etc. Herein, a wear-resistant, fluorine-free, strongly adhesive superhydrophobic composite surface was fabricated by applying the one-step spraying method. The superhydrophobic surface consisted of modified SiO 2 particles, commercial silicone paint, and a vinyl-capped epoxy polysiloxane (VEPS) which was synthesized as an adhesion promoter. The prepared coating exhibits a water contact angle (WCA) of 164.9 ± 1.3° and a sliding angle (SA) of 4.1 ± 0.6° with 30 wt% of modified SiO 2 , which provides the optimum trade-off between hydrophobicity and robustness. The superhydrophobic mechanism of the coating was elaborated based on its surface morphology . Moreover, the coating was subjected to various performance tests. After 12 h of immersion in solutions with different pH values, 26 linear wear tests or finger touch tests, the coating still exhibited superhydrophobicity, which indicates that it possessed excellent chemical durability and good abrasion resistance. Meanwhile, the coating still maintained a high water repellency when it had been subjected to tape peeling cycles, high temperature stability test or boiling water durability test. This facile approach to fabricate superhydrophobic surfaces greatly enhances the potential applicability of these coatings.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2022
·Vol. 139
·期 32
·e52478
·
IF 3.057
Yuhao Liu,Ying Lin,Yunsong Wang,Kangning Wu,Bin Cao,Liming Wang
To improve the toughness and hydrophobic property of the cycloaliphatic epoxy resin (CEP), which is vital to application in high voltage insulation of outdoor transmission lines, 3-aminopropyltriethoxysilane was used as the intermediate to prepare the silicone prepolymer by the interaction of the end groups of the CEP and the hydroxy-terminated polydimethylsiloxane. The results showed that the silicone prepolymer segments were self-assembled to form solid dispersion phases distributed uniformly in the CEP. The size of the dispersed phase gradually increased in CEP with more concentration of silicone prepolymer. The tensile strength and static contact angle of the CEP were simultaneously improved when content of the silicone prepolymer reached 10 phr. The tensile strength and static contact angle were mainly affected by the distribution of dispersed phase and by surface tension, respectively. With the increase of Si/C on the surface, surface tension decreased and tended to saturate. Due to small molecule migration, the CEP containing silicone prepolymer was also endowed with hydrophobic transfer properties. This paper affords a method to simultaneously enhance toughness and hydrophobic properties of CEP and deepens fundamental understanding of hydrophobic properties.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2023
·
IF 4.6
Wei Zhang,Ruolin Wang,Zhen Yang,Yongping Bai,Linghui Meng,Yu Wang
UV-curable silicone pressure-sensitive adhesive (SPSA) is composed of silicone rubber and silicone resin. Generally, the C C double bond in acryloyloxy group provides a photocurable group for SPSA. However, oxygen inhibition of acryloyloxy group block the degree of cure and C C double bond conversion of SPSA during the photopolymerization . Therefore, efficient photocurable groups for UV curing SPSA is particularly important to be developed. Thiol-ene click polymerizations have been widely used in photocrosslinked polymers due to the rapid efficiency of reactions. In this study, sulfhydryl functionalized silicone resin (SFSR) and methacrylate functionalized amino silicone rubber (MFASR) were synthesized to prepare a SPSA via photoinitiated thiol-ene click polymerization. The double bond in MSASR and sulfhydryl in SFSR were characterized by FT-IR spectroscopy and 1 H NMR spectroscopy . The double bond conversion of SPSA was calculated after polymerization. The cohesion of SPSA was improved by SFSR, while the crosslinking degree was improved by thiol-ene. The loop tack of SPSA with 50 wt% SFSR was 9.01 N, and the 180° peel strength was 11.37 N/25 mm. The SPSA maintained good bonding adhesion to steel at various temperature.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Shu Tian,Daoyi Jiang,Jibin Pu,Xiaofeng Sun,Zhanming Li,Bin Wu,Wenru Zheng,Wenqing Liu,Zhixiong Liu
A series of hybrid antifouling coatings consisting of silicone elastomer and nanocomposite hydrogel were successfully prepared. The morphology of the hybrid coatings and the silver nanoparticles (AgNPs) embedded into the coatings were studied by SEM and TEM. The pure silicone coating showed a relatively flat morphology. Smooth spheroidal aggregates self-assembled by hydrophilic polymer with a diameter of 4–14 μm appeared when the polymer chains were introduced. However, with increasing of AgNPs the spheroidal aggregates were gradually covered with a thin silicone film and were firmly embedded into the coatings. The glass transition temperature of the hybrid coatings measured by DSC technique showed that the silicone elastomer and the hydrogel matrix formed interpenetrating polymer networks (IPN). The static water contact angle of the hybrid coatings with different amount of the hydrophilic polymer chains before and after being immersed into water was also measured. Furthermore, these hybrid coatings showed good antimicrobial performance for Escherichia coli and anti-algae property. The result showed that the SH-0.25-1.5 sample could almost kill 100% E. coli. Compared with the control sample, the settlement of the Phaeodactylum tricornutum, Navicula torguatum and Chlorella on the surface of SH-0.25-1.5 sample decreased approximately 37%, 37% and 52%, respectively. The antifouling performances of the hybrid coatings were examined by field tests in South China Sea and the result showed the hybrid coatings with nanocomposite hydrogel exhibited good antifouling property. These hybrid coatings have promising applications in marine antifouling coating and interfaces of biomaterials.
研究领域:
材料科学
·
海洋生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Ke Wang,Wei Gao
Three silica-based porous materials-silica aerogel (SA), hollow silica microspheres (HS), and double-shell silica-titanium hollow microspheres (HST)-were synthesized via sol-gel and templating methods, and integrated into silicone resin to develop thermal insulation coatings. All three thermal insulation materials demonstrate excellent thermal insulation properties, with reflectance greater than 92 % in the near-infrared wavelength range. The composite coatings exhibit low thermal conductivity and high thermal stability. SA possesses the lowest thermal conductivity (0.0297 W/m·K). However, adding 5 wt% SA results in a reduction of mechanical properties, it's difficult to prepare coatings when exceeding 5 wt% due to excessive coating viscosity. Due to the double-shell structure and higher reflectance, HST exhibits superior thermal insulation performance than HS. When added 8 wt% HST, composite coating SHST4 demonstrates excellent thermal insulation performance (0.129 W/m·K) while maintaining exceptional mechanical properties. This work provides an effective strategy to design high-performance thermal insulation coatings for many fields.
研究领域:
材料科学
·
高分子化学
·
热工程
·
表面工程
·
复合材料技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Lixin Zhang,Lei Rao,Peifang Wang,Zhenyu Shi,Pingfan Wang
Semiconductor photocatalysis is as a promising method for water pollution remediation. However, the recycling and light capture of powder photocatalysts in traditional suspension systems are bottlenecks for their practical application in photocatalysis. Moreover, the large-scale application of traditional immobilized photocatalytic systems immersed in solution is limited due to the electron-hole recombination and slow reaction rate. Herein, we have successfully prepared superhydrophobic self-floating TiO 2 -silicone composite aerogels by condensation polymerization of γ-methacryloxypropyl trimethoxysilane (KH570) modified anatase TiO 2 and methyltriethoxysilane (MTES). The air–liquid-solid triphase photocatalytic system was constructed using the air layer formed by the superhydrophobic self-floating composite aerogel and the solution interface, which solved the above-mentioned limitation. The floating characteristics of the system effectively avoided the absorption of light by the solution, thereby significantly enhancing the light utilization of the catalyst. The air–liquid-solid interface allows oxygen to be quickly transported from the air to the reaction interface, and oxygen, which is a natural electron scavenger, can effectively remove photoelectrons from the catalyst surface and the recombination of electron-holes is minimized. The new self-floating photocatalyst with triphase catalytic system presented high practical application value for the degradation of suspended pollutants in a natural environment.
研究领域:
材料科学
·
环境科学
·
光催化技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Xie Li,Qiuru Bao,Kexuan Chen,Ren He,Yuan Liu,Qi Wang
The silicone thermoplastic elastomer is highly attractive in various areas for good mechanical strength and aging resistance. However, its intrinsically high flammability limits its practical applications. Meanwhile, as a typical polymer material, its irreversible cross-linking structure makes it difficult to recycle and reprocess; a great deal of discarded silicone materials can pose a waste of resources and environmental problems. Herein, it is of great significance to prepare an intrinsic flame retardant (FR) and reprocessable silicone polyurethane (STPU). In this study, we introduce phosphorus-containing compounds (MDP) and a dynamic phenylborate ester (HDPM) bond into traditional silicone’s molecular chain structure by in situ polymerization method, which endows the material with excellent flame retardance and reprocessing properties, respectively. The resulting STPU shows a limited oxygen index (LOI) value of 26.1% and reaches at VTM-0 rating. Furthermore, by regulating the decomposition and reconstruction of the phenylborate ester structure, STPU remain the initial tensile strength and keep 87.58% of tensile strain after twice reprocessing. This high-performance sustainable STPU materials hold great promise for fire safety behavior and reutilization in practical application.
研究领域:
材料科学
·
高分子化学
·
可持续材料
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Shuai Zhou,Xiang Zhou,Gazi Hao,Wei Jiang,Tianhe Wang
Modulation of the density (from 3.5 to 64 mg cm −3 ), hydrophobicity and oil-uptake capability of graphene aerogels in extensive ranges were achieved by reacting (3-Mercaptopropyl)trimethoxysilane (MPS) with graphene oxide solutions under heating. The reaction allowed a characteristic silicone substructure to be formed on graphene and joint the graphene layers firmly together. With the increase of MPS concentrations (≤ca. 0.2 vol%), the nano silicone polymer grown on graphene functioned as a “linker” and “spacer”, leading to a substantial decrease of the aerogel density. Because of the formation of silicone polymer and the characteristic nano-micro substructures on the backbones of graphene aerogels, the graphene aerogels exhibited a high hydrophobicity with the water contact angle consistently exceeding 142 degrees. Functionalized graphene aerogels with a density of 3.5 mg cm −3 were conveniently fabricated that displayed an extraordinary oil absorption capacity, 182 times for lubricating oil and 143 times for n-hexane of its own weight. Furthermore, the aerogels maintained their ultra-high absorption capability even after 20 absorption-distillation cycles, due to structural integrity held by the strong interfacial adhesion between graphene sheets and polymer chains of aerogels. This study offers a promising graphene aerogels and also provides a strategy for fabricating extra low dense functional materials.
研究领域:
材料科学
·
纳米科技
·
高分子化学
·
环境功能材料
·
表面与界面工程
✓ 已验证
DOI
高影响因子
ACS Applied Polymer Materials
·
2025
·
IF 4.7
Yuechang Lian,Xiaojing Wang,Shuaiyu Chen,Siyuan Xiang,Yuchao Wang,Shengyang Tao,Wendong Liu
Superhydrophobic fabrics exhibit exceptional potential for oil–water separation, providing effective solutions to environmental challenges such as industrial wastewater and marine oil spills. To streamline the fabrication process and mitigate oily contamination, we developed an in situ growth approach to coat polyester fabric with superhydrophobic TiO2-doped silicone nanofilaments. The coated fabric facilitates highly efficient oil–water separation and exhibits light-driven self-cleaning properties. By precisely controlling the synergistic hydrolysis conditions of methyl trichlorosilane (MTCS) and tetrabutyl titanate (TBT), TiO2-doped silicone nanofilaments were successfully grown on the fabric surface, resulting in a highly porous coating. Integrating this porous structure with the residual methyl groups from MTCS made the fabric superhydrophobic, allowing it to separate various oil–water mixtures efficiently with excellent reusability and high-pressure resistance (2950 Pa). Incorporating TiO2 further endowed the superhydrophobic fabric with light-driven self-cleaning capabilities, enabling the degradation of organic contaminants without compromising its liquid repellency. This simple, cost-effective, and productive fabrication method is highly adaptable, making it valuable for researchers aiming to introduce superhydrophobicity to diverse substrates and surfaces. With its high oil–water separation efficiency and light-driven self-cleaning properties, the superhydrophobic TiO2-doped silicone nanofilament-coated fabric holds significant potential for applications in oil pollution remediation, self-cleaning surfaces, and desalination.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2025
·
IF 7.7
Xu Guo,Chenchen Li,Shangming Xia,Tianqi Chen,Yanfen Zhou,Feng-lei Zhou,Yafei Wang,Shaohua Wu,Shaojuan Chen,Liang Jiang,Stephen Jerrams
With concern over the environment increasingly important globally, there is an imperative for the development of more sustainable electronic materials. Flexible strain sensors, capable of translating mechanical deformation into electrical signals, have garnered significant interest in applications such as healthcare monitoring and soft robotics. In this study, a biodegradable fiber-based flexible strain sensor with excellent electromechanical properties was developed using custom polyurethanes modified with polylactic acid and silicone (Si-BTPU) blended with carbon nanotubes (CNTs) via environmentally friendly melt spinning technology. The results revealed that the Si-BTPU exhibited biodegradability, with a degradation rate of 5.7 % after just 4 weeks. Notably, the obtained strain sensor demonstrated an impressive sensing range of 0–395 %, high sensitivity (gauge factor GF = 42) and a low detection limit of less than 2 %, while maintaining stable electromechanical performance over 10,000 tensile loading-unloading cycles. Furthermore, human epidermal fibroblasts (HDFs) displayed strong adhesion to and proliferation on the strain sensor, indicating its suitability for skin surface applications. This research provides valuable insights into the advancement of wearable electronic devices for healthcare monitoring within the realm of advanced materials.
研究领域:
材料科学
·
生物医学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Yuchen Zhang,Gonghao Wang,Die Yang,Yongbo Ding,Yinxiu Zuo,Liang Shen
This study developed a green and bio-based waterborne coating system that self-stratifies via silicone-induced phase separation. The system is built on a rosin acid-modified epoxy ester/acrylate hybrid resin and includes a small amount of vinyl-terminated silicone oil to promote phase separation. Two resin formulations were prepared, namely a silicone oil-free epoxy ester/acrylate hybrid resin (designated as EAR20, rosin acid constitutes 20 % of the total carboxylic acid content of epoxy ester) and a counterpart containing 2.5 wt% vinyl-terminated silicone oil (designated as EAR80–2.5, rosin acid constitutes 80 % of the total carboxylic acid content of epoxy ester). Self-stratifying coatings were fabricated by blending these two resins, with optimal performance observed at a 2:1 (EAR20:EAR80–2.5) mass ratio. During curing, the silicone-containing resin phase preferentially migrated to the surface, forming a distinct silicone-rich upper layer in a one-step process. This stratified architecture yields a hard, hydrophobic surface while preserving robust adhesion and mechanical integrity in the bulk. Compared to the silicone-free coating (with pure EAR20), the self-stratifying coating exhibited a markedly higher surface hardness (pencil hardness increased from B to H) and significantly improved durability. Water resistance in an immersion test extended from 7 days to 12 days without failure, and abrasion resistance increased from 5 ± 1 to 41 ± 2 cycles. The static water contact angle also rose from 75 ± 2° to 89 ± 2°, indicating a more hydrophobic surface. Furthermore, the silicone-rich top layer imparted anti-graffiti functionality, enabling sprayed ink to be easily wiped off without residue. Overall, this silicone oil-induced stratification strategy synergistically enhances both mechanical robustness and surface properties, offering a promising and sustainable route for developing high-performance waterborne coatings.
研究领域:
材料科学
·
高分子科学
·
涂料技术
·
绿色化学
·
表面工程
✓ 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）