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New Nano Polymer Materials for Composite Exterior-Wall Coatings
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作者 Yue Yu 《Fluid Dynamics & Materials Processing》 EI 2023年第10期2681-2694,共14页
A triethylenetetramine epoxy mixture was synthesized through the reaction of a low-molecular-weight liquid epoxy resin with triethylenetetramine(TETA).Then triethyltetramine(TETA)was injected dropwise into a pro-pylen... A triethylenetetramine epoxy mixture was synthesized through the reaction of a low-molecular-weight liquid epoxy resin with triethylenetetramine(TETA).Then triethyltetramine(TETA)was injected dropwise into a pro-pylene glycol methyl ether(PM)solution for chain extension reaction.A hydrophilic andflexible polyether seg-ment was introduced into the hardener molecule.The effects of TETA/DGEPG,reaction temperature and reaction time on the epoxy conversion of polyethylene glycol diglycidyl ether(DGEPG)were studied.In addition,several alternate strategies to add epoxy resin to the high-speed dispersion machine and synthesize MEA DGEBA adduct(without catalyst and with bisphenol A diglycidyl ether epoxy resin)were compared.It was found that the higher the molecular weight of triethylenetetramine,the longer the chain segment of the surface active molecule.When the equivalence ratio of amine hydrogen and epoxy group is low,the stability of lotion is good.When the ratio of amine hydrogen to epoxy group is large,the content of triethylenetetramine is small.The main objective of this study is the provision of new data and knowledge for the development of new materials in the coating and electronic industry. 展开更多
关键词 water-based coating triethylenetetramine(TETA) surface active agent nano polymer materials TRIETHYLENETETRAMINE
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Structure, properties and application to water-soluble coatings of complex antimicrobial agent Ag-carboxymethyl chitosan-thiabendazole 被引量:5
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作者 夏金兰 王春 +2 位作者 聂珍瑗 彭安安 管昕 《Journal of Central South University of Technology》 EI 2005年第5期526-530,共5页
The structure, properties and application to water-soluble coatings of a new complex antimicrobial agent Ag-carboxylmethyl citosan-thiabendazole (Ag-CMCTS-TBZ) prepared from different materiel ratios were reported. ... The structure, properties and application to water-soluble coatings of a new complex antimicrobial agent Ag-carboxylmethyl citosan-thiabendazole (Ag-CMCTS-TBZ) prepared from different materiel ratios were reported. The silver ions were preferably coordinated with the free-NH2 groups and the -OH groups of secondary alcohol and carboxyl in CMCTS. TBZ preferably bonded to carboxyl group in CMCTS by electrostatic force and hydrogen bonding. Increase in silver ions content in the complex agent improved to some limited extent the antibacterial activity, but enhanced coloring and cost of the complex agent. Increase in TBZ content resulted in increase of antifungal activity, but decrease of water solubility of the complex agent. The antimicrobial MICs of the complex agent to Esherichia coil, Staphylococcus aureus, Candida albicans, Aspergillus niger, Mucor sp. were 20 -80, 15 -60, 20 - 55, 40 - 250, and 400 - 1700 mg/kg, respectively. Addition of 0.1% of this complex agent to acrylic emulsion paint made the paint without substantial change in color, luster, viscosity, odor or pH value, but with an excellent and chronically persisting broad-spectra antimicrobial activity. 展开更多
关键词 complex antimicrobial agent carboxylmethyl chitosan silver THIABENDAZOLE water-based acrylic emulsion paint water-soluble antimicrobial coating
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Double-layer Modifi cation of Water-based Aluminum with SiO2 and Polyacrylic Acid by Solgel Process and in situ Polymerization 被引量:4
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作者 何宇航 黎厚斌 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第2期231-235,共5页
A double-layer aluminum consisting of an aluminum core and a shellof SiO2 and polyacrylic acid was synthesized.This modified aluminum was used to improve the corrosion resistance and dispersive property of aluminum in... A double-layer aluminum consisting of an aluminum core and a shellof SiO2 and polyacrylic acid was synthesized.This modified aluminum was used to improve the corrosion resistance and dispersive property of aluminum in waterborne media.TEM,FTIR,XPS,and EDX determination showed that PAA and SiO2 were coated on the surface of aluminum.Evolved hydrogen detection showed that the corrosion resistance of composite particle had been markedly improved.Maximum corrosion inhibition efficiency of SiO2 coated aluminum(SiO2@Al)was 95.1% while that of double-layer coated aluminum(PAA/SiO2@Al)was 98.8%.Meanwhile,polyacrylic acid layer improved the agglomeration of aluminum significantly.According to the dispersibility test,the particle size of 50% volume fraction [d(0.5)] of aluminum,SiO2@Aland PAA/SiO2@Alwere 42,53,and 34 μm,respectively. 展开更多
关键词 flaky aluminum water-based pigments polymer coating alkaline corrosion
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牛皮涂层的研究与进展 被引量:1
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作者 宋鹏涛 刘海华 郭新刚 《合成材料老化与应用》 2019年第5期150-153,共4页
对牛皮涂层的发展现状进行研究,包括牛皮的种类、常用的水性牛皮涂料、制备工艺以及性能检测,并介绍了一些牛皮涂层的新技术,对牛皮涂层工艺进行了展望。新型的环保型的牛皮涂层工艺,必将在未来得到广泛的发展。
关键词 牛皮涂层 水性牛皮涂料 制作工艺 性能检测 新技术
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Effect of Polymer Inclusion in Preparation of Thick LZO Buffer Layers for YBCO Coated Conductors 被引量:3
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作者 Vyshnavi Narayanan Isabel Van Driessche 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2013年第3期261-266,共6页
In this work, water-based precursor solutions suitable for dip-coating of thick La2Zr2O7 (LZO) buffer layers for coated conductors on Ni-5%W substrates with an inclusion of polymeric polyvinyl pyrrolidone were devel... In this work, water-based precursor solutions suitable for dip-coating of thick La2Zr2O7 (LZO) buffer layers for coated conductors on Ni-5%W substrates with an inclusion of polymeric polyvinyl pyrrolidone were developed. The effect of varying percentage of the polymer addition on the preparation of the deposited films with maximum crack-free thickness was investigated. This novel water-based chemical solution deposition method involving polymers in two different chelate-chemistry compositions revealed the possibility to grow single, crack-free layers with thicknesses ranging from 140 to 280 nm, with good crystallinity and epitaxial growth. The effect of increasing polymer concentrations on the morphology and the structure of the films was studied. The appropriate buffer layer action of the films in preventing Ni diffusion was studied by X-ray photoelectron spectroscopy. 展开更多
关键词 Buffer layers Thick lanthanum zirconate films Chemical solution deposition Polyvinyl pyrrolidone water-based precursor design coated conductors
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