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| 1 | Micromorphology and physicochemical properties of hydrophobic blasting dust in iron mines显示文摘The micromorphology and physicochemical properties of hydrophobic blasting dust(HBD)from an iron mine were comprehensively analyzed by laser particle size analysis(LPSA),scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray photoelectron spectroscopy(XPS).The results show that the HBD particles can be classified into three types based on their particle size(PS):larger particles(PS>10μm),medium particles(1μm≤PS≤10μm),and nanoparticles(PS<1μm).The cumulative volume of respirable dust(PS≤10μm)was 84.45%.In addition,three shapes of HBD were observed by SEM:prism,flake,and bulk.In particular,the small particles were mostly flaky,with a greater possibility of being inhaled.Furthermore,the body and surface chemical compounds of HBD were determined by XRD and XPS,respectively.Ammonium adipate(C6H16N2O4)was the only organic compound in the body of HBD,but its mass fraction was only 13.4%.However,the content of organic C on the surface of HBD was 85.35%.This study demonstrated that the small-particle size and large amount of organic matter on the surface of HBD are the main reasons for its hydrophobicity,which can provide important guidance for controlling respirable dust in iron mines. | Jian-guo Liu Long-zhe Jin Jia-ying Wang Sheng-nan Ou Jing-zhong Guo Tian-yang Wang | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，6： | 6 |
| 2 | Construction of Self-Assembly Based Tunable Absorber:Lightweight,Hydrophobic and Self-Cleaning Properties显示文摘Although multifunctional aerogels are expected to be used in applications such as portable electronic devices,it is still a great challenge to confer multifunctionality to aerogels while maintaining their inherent microstructure.Herein,a simple method is proposed to prepare multifunctional NiCo/C aerogels with excellent electromagnetic wave absorption properties,superhydrophobicity,and self-cleaning by water-induced NiCo-MOF self-assembly.Specifically,the impedance matching of the three-dimensional(3D)structure and the interfacial polarization provided by CoNi/C as well as the defect-induced dipole polarization are the primary contributors to the broadband absorption.As a result,the prepared NiCo/C aerogels have a broadband width of 6.22 GHz at 1.9 mm.Due to the presence of hydrophobic functional groups,CoNi/C aerogels improve the stability in humid environments and obtain hydrophobicity with large contact angles>140°.This multifunctional aerogel has promising applications in electromagnetic wave absorption,resistance to water or humid environments. | Zehua Zhou Qianqian Zhu Yue Liu Yan Zhang Zirui Jia Guanglei Wu | 2023 | Nano-Micro Letters2023，15，9： | 5 |
| 3 | In situ synthesis and modification of calcium carbonate nanoparticles via a bobbling method显示文摘Modified calcium carbonate (CaCO3) nanoparticles with cubic- and spindle-like configuration were synthesized in situ by the typical bobbling (gas-liquid-solid) method. The modifiers, such as sodium stearate, octadecyl dihydrogen phosphate (ODP) and oleic acid (OA), were used to obtain hydrophobic nanoparticles. The different modification effects of the modifiers were investigated by measuring the active ratio, whiteness and the contact angle. Moreover, transmission electron microscopy (TEM), X-ray diffraction (XRD) and thermogravimetry analysis (TGA analysis) were employed to characterize the obtained products. A preliminary reaction mechanism was discussed. According to the results, the active ratio of CaCO3 modified by ODP was ca. 99.9% and the value of whiteness was 97.3% when the dosage of modifiers reached 2%. The contact angle was 122.25° for the CaCO3 modified in the presence of sodium stearate, ODP and OA. When modified CaCO3 was filled into PVC, the mechanical properties of products were improved greatly such as rupture intensity, pull intensity and fuse temperature. The compatibility and affinity between the modified CaCO3 nanoparticles and the organic matrixes were greatly improved. | ZHAO LiNa FENG JingDong WANG ZiChen | 2009 | Science China Chemistry2009，52，7： | 5 |
| 4 | Improving the sulfidation-flotation of fine cuprite by hydrophobic flocculation pretreatment显示文摘Hydrophobic flocculation pretreatment was performed to assess its effect on the recovery of fine cuprite in sulfidation-flotation. The results of the micro-flotation experiment showed that cuprite recovery is related to the particle size, and that an excessive content of fine particles(<18 μm) impacted the recovery of coarse particles. When hydrophobic flocculation pretreatment was used, the recovery of fine cuprite in sulfidation-flotation increased from 60.3% to 86.3% under optimum conditions(pH 9.5; sodium oleate concentration, 2 × 10^(-4) mol×L^(-1); stirring time, 6 min; stirring speed, 1600 r×min^(-1)). The laser particle size analysis and optical microscopy results indicate that hydrophobic flocculation pretreatment effectively reduces the content of fine cuprite, and augments the apparent particle size in the pulp. We performed the Derjaguin–Landau–Verwey–Overbeek(DLVO) theory and extended DLVO theory calculations to further support the interpretation of the results. | Qian-yu Sun Wan-zhong Yin Dong Li Ya-feng Fu Ji-wei Xue Jin Yao | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，11： | 5 |
| 5 | Determination of free energy of protein folding on liquid-solid interface显示文摘Based on the fact that the stoichiometric displacement model for retention of solute and the total adsorption free energy of solute on a solid surface can be divided into two components, net adsorption and net desorbed energies, a new principle and an equation for calculating the free energy of protein folding, △△GF, on the solid surface are proposed. With high-performance hydrophobic interaction chromatography (HPHIC), an experimental method for determining the △△GF is established. Lysozyme and a-amylase have been selected as examples to test the new method, and their △△GF on the HPHIC stationary phase surface are found to be much higher than that reported from a solution. In addition, the △△GF of the two proteins are found to increase with the concentration of denaturing agent employed. The average standard deviations,±4.7% for lysozyme and ± 3.0% for a-amylase, indicate that the new method has a satisfactory reproducibility and reliability. | Xindu Geng Jing Zhang Yinmao Wei | 2000 | Chinese Science Bulletin2000，45，3： | 5 |
| 6 | Effect of boron doping on waterproof and dielectric properties of polyborosiloxane coating on SiO2f/SiO2 composites显示文摘A hydrophobic coating of the silica fiber reinforced silica composites(SiO2f/SiO2) was synthesized by sol-gel method using methyltriethoxy-silane(MTES) and boric acid(B(OH)3) as raw materials. The relationship among boron doping, chemical structure of precursors and durability of hydrophobic coatings was discussed. The Si-O-B and methyl groups were successfully introduced in the gel precursors according to the FT-IR and XPS results. The resins were filled in the internal and surface holes of the SiO2f/SiO2 composites partially or completely, which is beneficial to reduce the physical adsorption of the moisture. In addition, hydroxyl groups of the SiO2f/SiO2 composites reacted with the resins and hydrophobic methyl groups were introduced, leading to the reduction of the chemical adsorption of water. Also, the boron doping was beneficial to enhancing the physical cross-linking between the coating and the SiO2f/SiO2 composites, and improved the adhesion of the coating to the substrate. The results show that the optimal hydrophobic coating with contact angle 130.33°, moisture absorption 0.33% and adhesion level 1 is obtained when the molar ratio of MTES to B(OH)3 is 10:4. The real permittivity of M10B4 is constant in the range of 2.32–2.51 and the dielectric tangent loss is constant in the range of 5.5 × 10-4–8.7 × 10-3. The hydrophobic coating has excellent dielectric properties. | Long XIA Siru LU Bo ZHONG Longnan HUANG Hua YANG Tao ZHANG Haibo HAN Pan WANG Li XIONG Guangwu WEN | 2019 | Chinese Journal of Aeronautics2019，32，8： | 5 |
| 7 | Study of lubrication behavior of pure water for hydrophobic friction pair显示文摘The perfluorooctyltrichlorosilane molecular layer was self-assembled on glass plate. The tribological properties of the molecular layer in water were studied with the method of ball on disk. An interesting phenomenon was found that low friction coefficients of 0.02―0.08 were obtained when the friction pair was lubricated with only a water droplet. Whereas, when the friction pair was encircled with large amount of water or fully immersed in water, the friction coefficient was higher than that under a droplet lubrication. A mechanism of water droplet lubrication was proposed that the surface tension caused by the solid-liquid-air three-phase interface makes water molecules enter into the contact zone, which separates the two friction surfaces and provides a low friction coefficient. However, water film can hardly form when more water encircles the friction pair, due to the attraction between water molecules. | MA ZhiZuo ZHANG ChenHui LIU ShuHai LUO JianBin LU XinChun WEN ShiZhu | 2009 | Science China(Technological Sciences)2009，52，11： | 4 |
| 8 | Evaluation on Self-healing Mechanism and Hydrophobic Performance of Asphalt Modified by Siloxane and Polyurethane显示文摘In order to inhibit and remove the thin ice and extend the lifetime of the damaged bridge, the self-healing mechanism and hydrophobic performance of asphalt modified by siloxane and polyurethane (ASP) were studied by dynamic shear rheology (DSR), fluorescence microscope (FM), atomic force microscope (AFM), the fracture-healing-re-fracture test and molecular simulations. The experimental results indicated that the selfhealing capability of ASP increased with increasing heating time and temperature. Furthermore, the addition of siloxane could improve the reaction energy barrier and complex modulus, and it is believed that the self-healing is a viscosity driven process, consisting of two parts namely crack closure and properties recovery. Contact angle of ASP increased with the increasing siloxane content and it deduced that the siloxane could improve the hydrophobic performance of ASP and the ASP molecule model could simulate well the self-healing mechanism and hydrophobic performance of ASP. | 周新星 SUN Bin WU Shaopeng ZHANG Xiao LIU Quantao 肖月 | 2019 | Journal of Wuhan University of Technology(Materials Science)2019，34，3： | 4 |
| 9 | Surface modification of acrylate intraocular lenses with dielectric barrier discharge plasma at atmospheric pressure显示文摘Surface modification with dielectric barrier discharge(DBD) plasma was carried out at atmospheric pressure(argon as the discharge gas) to improve the biocompatibility of hydrophobic acrylate intraocular lens(IOL).Changes of the plasma-treated IOL surface in chemical composition,morphology and hydrophilicity were comprehensively evaluated by X-ray photoelectron spectroscopy(XPS),field emission scanning electron microscopy(FESEM),atomic force microscopy(AFM) and water contact angle(WCA) measurements.The surface biocompatibility of the untreated and plasma-treated IOLs was compared with the adhesion behavior of platelets,macrophages and lens epithelial cells(LECs) in vitro.After DBD plasma treatment,the hydrophilicity of the IOL surface was obviously improved.The changes in WCA with treatment extension may be attributed to both the introduction of oxygen or/and nitrogen-containing polar groups and the increase of surface roughness induced by plasma etching effect.The existence of low molecular weight oxidized material(LMWOM) was proved on the plasma-treated IOL which was caused by the chain scission effect of the plasma treatment.The plasma-treated IOLs resisted the adhesion of platelets and macrophages significantly.The LECs spreading and proliferation were postponed on the IOLs plasma-treated for more than 180 s,with a well maintained epithelial phenotype of LECs.The IOL biocompatibility was improved after the DBD plasma treatment.We speculate that slighter foreign-body reaction and later incidence of anterior capsule opacification(ACO) may be expected after implantation of the argon DBD plasma-treated IOL. | WANG Yao LIU ZhenMei XU ZhiKang YAO Ke | 2009 | Science China Chemistry2009，52，8： | 3 |
| 10 | Surface Activities of Calix [4]resorcinarenes Bearing Four Hydrophobic Chains and Its Solubilization for Organic Compounds显示文摘Calix resorcinarenes bearing four hydrophobic side chains ( Ar-Rn, Ar-Ph, and Ar-N) orient stably on water oil interface and show high solubilization capacities for organic compounds, such as long chain alcohols, benzene, toluene and dyes. The capacities are high even near the cmc of polyalkylated calix resorcinarenes, but the solubilities of organic compounds(solubilizates) decrease with the increase of the size of the solubilizates. Ar-R 6, with a chain length of six carbons, is the most effective among Ar-R n , Ar-Ph, and Ar-N; 11 fold mol of hexanol is dissolved in 2×10 -3 mol/L Ar-R 6. Moreover, Ar-R n bearing four alkyl side chains solubilizes the chain alcohols of the same chain length mostly. The solubilization capacities are presumably brought by inclusion in a large cavity of the polyalkylated calix resorcinarenes and by an efficient orientation of the solubilizates. | LI Bo *1 , Yoshifumi KOIDE 1 and Kunio ESUMI 21. Toyota Central R & D Labs., Inc., 41 1, Yokomichi, Nagakute, Aichi 480 1192, Japan 2. Departemnt of Applied Chemistry and Institute of Colloid and Interface Science, Science University of Tokyo | 2002 | Chemical Research in Chinese Universities2002，18，2： | 3 |
| 11 | Effect of chlorination and ozone pre-oxidation on the photobacteria acute toxicity for dissolved organic matter from sewage treatment plants显示文摘The effect of chlorination and ozone pre-oxidation on the photobacteria acute toxicity for dissolved organic matter(DOM) from sewage treatment plants was investigated in this study.The results show that ozone pre-oxidation enhanced the photobacteria acute toxicity of the water samples.DOM before and after ozone pre-oxidation was fractionated by resins into six kinds of hydrophobic and hydrophilic organics.The six fractions were chlorinated individually and the photobacteria acute toxicity before and after chlorination was tested.It was found that the percentage of hydrophilic organics in DOM significantly increased after ozone pre-oxidation and hydrophilic organics exhibited remarkably higher acute toxicity than hydrophobic organics.In view of potentiometric titration and fourier transform infrared(FTIR) analysis,the hydrophilic organics showed a rather higher content of ph-OH structures than hydrophobic organics. | ZHANG Hua,QU JiuHui & LIU HuiJuan* State key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China | 2010 | Science China Chemistry2010，53，11： | 3 |
| 12 | Fabrication and characterization of affordable hydrophobic ceramic hollow fibre membrane for contacting processes显示文摘Affordable hydrophobic hollow fibre membranes were prepared using kaolin and alumina based ceramic powders via a combined phase inversion and sintering technique,followed by a grafting with fluoroalkylsilane(FAS).The crux of the matter in this paper is to study the changes in the properties of the hollow fibre membranes(gas permeation,mechanical strength,pore size,porosity,tortuosity,morphology,and contact angle)by the addition of alumina(Al2O3)to the pure kaolin with mono or multiparticle sizes.By varying the overall loading and particle size of alumina addition,different morphologies of the membranes were obtained due to the differences in the path lengths during phase inversion process for each solvent and nonsolvent exchange.The successful grafting with FAS was evidenced by the increase in contact angle from nearly equal to zero degree before grafting to 140°after grafting.Kaolin-alumina-4,one of the hollow fibres fabricated in this work,achieved a mean pore size of 0.25μm with the bending strength of 96.4 MPa and high nitrogen permeance of 2.3×10^(-5) mol·m^(-2)·Pa^(-1)·s^(-1),which makes the hollow fibre most suitable for the membrane contactor application. | Mohammed Abdulmunem ABDULHAMEED Mohd Hafiz Dzarfan OTHMAN Haider Nadhom Azziz Al JODA Ahmad Fauzi ISMAIL Takeshi MATSUURA Zawati HARUN Mukhlis A.RAHMAN Mohd Hafiz PUTEH Juhana JAAFAR | 2017 | Journal of Advanced Ceramics2017，6，4： | 3 |
| 13 | Hydrophilic surface modification of PDMS for droplet microfluidics using a simple,quick,and robust method via PVA deposition显示文摘Polydimethylsiloxane(PDMS)is a dominant material in the fabrication of microfluidic devices to generate water-in-oil droplets,particularly lipid-stabilized droplets,because of its highly hydrophobic nature.However,its key property of hydrophobicity has hindered its use in the microfluidic generation of oil-in-water droplets,which requires channels to have hydrophilic surface properties.In this article,we developed,optimized,and characterized a method to produce PDMS with a hydrophilic surface via the deposition of polyvinyl alcohol following plasma treatment and demonstrated its suitability for droplet generation.The proposed method is simple,quick,effective,and low cost and is versatile with respect to surfactants,with droplets being successfully generated using both anionic surfactants and more biologically relevant phospholipids.This method also allows the device to be selectively patterned with both hydrophilic and hydrophobic regions,leading to the generation of double emulsions and inverted double emulsions. | Tatiana Trantidou Yuval Elani Edward Parsons Oscar Ces | 2017 | Microsystems & Nanoengineering2017，3，1： | 3 |
| 14 | Modification of Cellulose by Hydrophobic Long-chain Molecules: Advances and Prospects显示文摘Cellulose,a natural polymer material with abundant natural sources,is non-toxic,renewable,and biodegradable,making it one of the most promising green materials.Its inherent hydrophilicity dramatically limits the development and application of cellulose products.Hydrophobic modification can significantly change cellulose properties and endow it with additional functions depending on the types of modifying molecules.Controlled modification of cellulose by long-chain hydrophobic molecules is challenging.Significant advances took advantage of new reaction systems and copolymerization.This paper reviews recent innovations in long-chain cellulose hydrophobic modification.A brief value-adding assessment provides a reference for green changes of cellulose to make it fit for future applications. | Yuyuan Wang Haishan Zhang Leyi Lin Rui Wu Xiaohui Wang Junli Ren Chuanfu Liu Xiaoying Wang | 2020 | Paper And Biomaterials2020，5，3： | 3 |
| 15 | Intestinal uptake of barley protein-based nanoparticles for β-carotene delivery显示文摘Our previous study introduced a barley protein microparticle for encapsulation of hydrophobic drug/nutraceutical, which could release nanoparticles upon gastric digestion and deliver encapsulated compound to a simulated intestinal environment intact. This work focused on evaluating the potential of liberated nanoparticles to improve the absorption of encapsulated compounds(e.g., β-carotene) using in vitro Caco-2 cell and ex vivo small intestine models. Nanoparticles obtained from gastric digestion of barley protein microparticles had a spherical shape and an average size of 351 nm. Nanoparticles showed low cytotoxicity in Caco-2 cells and their cellular uptake was dependent on time, concentration and temperature. In a Caco-2 cell monolayer model, significantly greater uptake and transport of β-carotene were observed when it was delivered by nanoparticles(15%), compared to free β-carotene suspension(2.6%). In an ex vivo rat jejunum model, nanoparticles showed the capacity to retain in small intestinal tissue. Approximately 2.24 and 6.04 μg nanoparticle were able to permeate through each cm2 intestinal tissue and translocate to the serosal side after 60 and 90 min, respectively. Results from this study demonstrated the absorption improving effect of the barley protein nanoparticles and suggested their potential as vehicles for hydrophobic compounds. | Guangyu Liu Ying Zhou Lingyun Chen | 2019 | Acta Pharmaceutica Sinica B2019，9，1： | 3 |
| 16 | Retention model of protein for mixed-mode interaction mechanism in ion exchange and hydrophobic interaction chromatography显示文摘A unified retention equation of proteins was proved to be valid for a mixed-mode interaction mechanism in ion exchange chromatography (IEC) and hydrophobia interaction chro-matography (HIC). The reason to form a 'U' shape retention curve of proteins hi both HIC and IEC was explained and the concentration range of the strongest elution ability for the mobile phase was determined with this equation. The parameters in this equation could be used to characterize the difference for either HIC or IEC adsorbents and the changes in the molecular conformation of proteins. With the parameters in this equation, the contributions of salt and water in the mobile phase to the protein retention in HIC and IEC were discussed, respectively. In addition, the comparison between the unified equation and Melander’ s three-parameter equation for mixed-mode interaction chromatography was also investigated and better results were obtained in former equation. | 卫引茂 罗全舟 刘彤 耿信笃 | 2000 | Chinese Journal of Chemistry2000，18，1： | 2 |
| 17 | Improving Water Stability of Metal–Organic Frameworks by a General Surface Hydrophobic Polymerization显示文摘Water and moisture stability have been recognized as one of the most important characteristics of metal–organic frameworks(MOFs)in regards to their future applications.Nonetheless,most MOFs are water-labile to some degree.One promising solution for the collapse of MOFs toward water is surface hydrophobic modification. | Meili Ding Hai-Long Jiang | 2021 | CCS Chemistry2021，3，8： | 2 |
| 18 | Corrosion Properties of Calcium Stearate-Based Hydrophobic Coatings on Anodized Magnesium Alloy显示文摘A calcium stearate-based hydrophobic coating was formed on an anodized magnesium alloy by the electrodeposition method.The influences of the working voltages on the characteristics of the coatings were researched.The results indicate that the working voltages have significant effects on the morphology,thickness,roughness,and wettability of the hydrophobic coatings,but little influence on the phase composition.Higher working voltages promote the nucleation of the coatings during the deposition process.The thickness,roughness,and water contact angle of the coatings increase with the increase in working voltage.In addition,the influences of the working voltages on the corrosion properties and corrosion mechanisms of the coated magnesium alloys are discussed in detail.When the working voltage is 50 V,the best corrosion resistance is obtained,but when the working voltages are 20 V and 100 V,respectively,a low corrosion resistance is obtained because of the presence of the thinner and cracked coating on the substrate surfaces. | Yu-Fen Zhang Sha-Wei Tang Tie-Gui Lin Guang-Yi Liu Jin Hu | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，9： | 2 |
| 19 | INTRAMOLECULAR LIGAND-LIGAND HYDROPHOBIC INTERACTION IN COORDINATION COMPOUNDS——SYSTEMS OF Cd^(2+)-BIPY(PHEN)-PHE^-显示文摘Intramolecular ligand-ligand hydrophobic interaction was first found in 1974. As is well known, many biological ligand molecules usually contain uncoordinated hydrophobic moiety which often plays an important role in physiographical function. The function of the hydrophobic pocket of carboxypeptidase A in the catalystical hydrolysis of peptide substrates is a good example. Therefore the study on the intramolecular | 高恩君 张向东 刘祁涛 | 1992 | Chinese Science Bulletin1992，37，9： | 2 |
| 20 | Mechanism of simultaneously refolding and purification of proteins by hydrophobic interaction chromatographic unit and applications显示文摘The hydrophobic amino acid residues of a denatured protein molecule tend to react with the particles of the stationary phase of hydrophobic interaction chromatography (STHIC). These hydrophobic interactions prevent the denatured protein molecules from aggregating with each other. The STHIC can provide high enough energy to a denatured protein molecule to make it dehydration and to refold it into its native or various intermediate states. The outcome not only depends on the specific interactions between amino acids, the structure of STHIC, but also depends on the association between the STHIC and mobile phase. The mechanism of protein refolding and the principle of its quality control by HPHIC were also presented. By appropriate selection of the chromatographic condition, several denatured proteins can be refolded and separated simultaneously in a single chromatographic run. A specially designed unit, with diameter much larger than its length, was designed and employed for both laboratory and preparative scales. That unit for the simultaneous renaturation and purification of proteins (USRPP) had the following four functions: to completely remove denaturant, to renature proteins, to separate renatured proteins from impurities, and to easily recycle waste denaturant. The efficiencies of refolding and purification of proteins by the USRPP are almost comparable to a usual long chromatographic column in laboratory. In preparative scale, USRPP can be easily, rapidly, and economically applied requiring a low pressure gradient. As an example, recombinant human interferon-? is employed to elucidate the application of the preparative USRPP. | 耿信笃 白泉 | 2002 | Science China Chemistry2002，45，6： | 2 |
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