Polystyrene films were adsorbed onto a silver surface from dichloromethane solutions with concentrations of 0.1 to 12 wt%, and then studied by the surface enhanced Raman technique. A critical concentration for coil in...Polystyrene films were adsorbed onto a silver surface from dichloromethane solutions with concentrations of 0.1 to 12 wt%, and then studied by the surface enhanced Raman technique. A critical concentration for coil interpenetration was observed.展开更多
The chemical pretreatment film on the surface of aluminum profile,the type of fluorocarbon powder and the compatibility between them are the common key problems in the industry of using"powder"instead of&quo...The chemical pretreatment film on the surface of aluminum profile,the type of fluorocarbon powder and the compatibility between them are the common key problems in the industry of using"powder"instead of"paint"to solve the volatile organic compounds(VOCs)and related organic wastewater discharge in the coating process.In this study,a new type of pretreatment film was prepared on the surface of aluminum profile.It was found that the prepared pretreatment film had a three-dimensional framework s tructure,and the organic matter and titanium salt were connected by the introduction of divalent metal ions to form a metal skeleton film.展开更多
Different additives were added into the potassium fluorozirconate solution to prepare different nickelfree sealing reagents,with which the anodic oxidation film of aluminum alloy was sealed at room temperature.The pho...Different additives were added into the potassium fluorozirconate solution to prepare different nickelfree sealing reagents,with which the anodic oxidation film of aluminum alloy was sealed at room temperature.The phosphor chromic acid weight loss method was used to evaluate the sealing effects.Using electron scanning microscopy(SEM),the surface and cross-sectional micromorphologies of the anodic oxidation films sealed by different fluorozirconate sealants were observed.The position and state of zirconium element distribution in the film hole were investigated by the further quantitative and distribution analysis of Zr element.This study provides an experimental evidence for the theoretical studies of fluorozirconate-sealed anodic oxidation films.It is shown that the fluorozirconate has good sealing effects and has a wide prospect for sealing the aluminum alloy samples.Its products were highly corrosion resistant,and were filled in the openings of the micropores in the oxide film.展开更多
To further enhance dialogue and promote cross-strait cooperation in the prevention and control of parasitic diseases,this paper reviewed the progress and current challenges in the cross-strait control and research of ...To further enhance dialogue and promote cross-strait cooperation in the prevention and control of parasitic diseases,this paper reviewed the progress and current challenges in the cross-strait control and research of parasitic infections,based on three cross-strait meetings on parasitological research in the last decade.The major outcome of the 3rd Meeting of Cross-Strait Parasitological Research held in April 2013 was identifying the research priorities for parasitological research.展开更多
基金This work was supported by the National Key Project for Fundamental Research "Macromolecular Condensed State", the State Science and Technology Commission of China and the Science Foundation of Polymer Physics Laboratory, Chinese Academy of Sciences.
文摘Polystyrene films were adsorbed onto a silver surface from dichloromethane solutions with concentrations of 0.1 to 12 wt%, and then studied by the surface enhanced Raman technique. A critical concentration for coil interpenetration was observed.
基金financially supported by the National New Material Testing and Evaluation Platform Construction Project-Nonferrous Metal Material Industry(No.TC190H3ZW/2)the Pearl River S&T Nova Program of Guangzhou(No.201806010154)。
文摘The chemical pretreatment film on the surface of aluminum profile,the type of fluorocarbon powder and the compatibility between them are the common key problems in the industry of using"powder"instead of"paint"to solve the volatile organic compounds(VOCs)and related organic wastewater discharge in the coating process.In this study,a new type of pretreatment film was prepared on the surface of aluminum profile.It was found that the prepared pretreatment film had a three-dimensional framework s tructure,and the organic matter and titanium salt were connected by the introduction of divalent metal ions to form a metal skeleton film.
基金financially supported by the National New Material Testing and Evaluation Platform Main Center Project(No.TC170A5SU-1)。
文摘Different additives were added into the potassium fluorozirconate solution to prepare different nickelfree sealing reagents,with which the anodic oxidation film of aluminum alloy was sealed at room temperature.The phosphor chromic acid weight loss method was used to evaluate the sealing effects.Using electron scanning microscopy(SEM),the surface and cross-sectional micromorphologies of the anodic oxidation films sealed by different fluorozirconate sealants were observed.The position and state of zirconium element distribution in the film hole were investigated by the further quantitative and distribution analysis of Zr element.This study provides an experimental evidence for the theoretical studies of fluorozirconate-sealed anodic oxidation films.It is shown that the fluorozirconate has good sealing effects and has a wide prospect for sealing the aluminum alloy samples.Its products were highly corrosion resistant,and were filled in the openings of the micropores in the oxide film.
基金This work was supported by the National S&T Major Program(Grant No.2012ZX10004220).
文摘To further enhance dialogue and promote cross-strait cooperation in the prevention and control of parasitic diseases,this paper reviewed the progress and current challenges in the cross-strait control and research of parasitic infections,based on three cross-strait meetings on parasitological research in the last decade.The major outcome of the 3rd Meeting of Cross-Strait Parasitological Research held in April 2013 was identifying the research priorities for parasitological research.
