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Qin C.,China Lucky Group Co. | Niu J.,China Lucky Group Co. | Gao C.,China Lucky Group Co.
Yingxiang Kexue yu Guanghuaxue/Imaging Science and Photochemistry | Year: 2017

This article studies the relationship between particle size and coating thickness of UV cured nano metal oxides(ATO), as well as the insulation properties of the film, the performance and characteristics of nano coating thermal insulation film and magnetron sputtering. Results show that, functional degree of the light cured resin monomer and other components, the amount of nano metal oxides and the size of the nano materials have a close relationship. With a reasonable material combination of the insulation film, insulation rate can reach more than 50%. Compared to the magnetron sputtering films, nano coating insulation film shows highly pervious to light and improved thermal insulation and good thermal insulation performance. Even after damp heat aging, the infrared transmittance change of nano thermal insulation film is only about 5%. © 2017, Science Press. All right reserved.


Yang J.,Beijing University of Chemical Technology | Yang J.,China Lucky Group Corporation | Vitale A.,Politescnico di Turin | Bongiovanni R.,Politescnico di Turin | Nie J.,Beijing University of Chemical Technology
New Journal of Chemistry | Year: 2015

A linear ABA type diacrylic macromer containing an amphiphilic backbone composed of a siloxane block (SiO) and two polyoxyethylene blocks (EO) was synthesized and subsequently photopolymerized and copolymerized with a polyoxyethylene diacrylate. The kinetics of the photopolymerization was monitored by rt-FTIR, confirming the reactivity of the acrylic functionalities. The obtained polymers were then characterized by DMTA analyses and showed interesting biphasic morphology with two Tgs attributable to the EO domains and to the SiO domains. Swelling in different solvents was also tested: compared to siloxane acrylates, the introduction of EO enhanced the chemical resistance of the polymer to most solvents, excluding water. Surface analyses showed that the incorporation of both hydrophobic siloxane groups and hydrophilic polyoxyethylene groups into the networks is a successful method for controlling their surface; due to the preferential segregation of the SiO blocks at the air interface, the wettability of the polymers with water is very low, but can change depending on the environment. Compatibility toward DNA amplification reaction was successfully tested. As the possibility of fast, accurate, and cheap reproducibility of microdevices by liquid phase photopolymerization increases the attractiveness of the polymer, this material is a good alternative to polydimethylsiloxane for the fabrication of microfluidic chips for biological analysis purposes. © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2015.


Zou J.,China Lucky Group Corporation | Zou J.,Tianjin University
Yingxiang Kexue yu Guanghuaxue/Imaging Science and Photochemistry | Year: 2014

Printed electronics have developed rapidly abroad in recent years. Many scientific achievements have been brought into production from laboratories, and printed electronics industry system has formed as a result. This article introduces organic materials, inorganic materials and technological equipments which are applied in printed electronics. A detailed description of electronic products and its applications are also listed in this article. The printing products have entered people's daily life in many aspects. Though the printed electronic industry is still in the initial stage and the market is not mature, it has a brilliant prospect in the future. The article also points out the attentions and supports from government are the key factor to promote the development of printed electronics industry abroad.


Zhang Y.,Beijing University of Chemical Technology | He Y.,Beijing University of Chemical Technology | Yang J.,Beijing University of Chemical Technology | Yang J.,China Lucky Group Corporation | And 3 more authors.
Polymer (United Kingdom) | Year: 2015

A fluorinated photoinitiator, namely perfluorooctanoyl acid 2- [4-(2-hydroxy-2-methyl-propionyl)-phenoxy]-ethyl ester (F-2959) was synthesized and characterized. To increase the polymerization rate, fluorine groups were connected to the benzene ring rather than the hydroxyalkyl. Real time FTIR analysis was taken to study the ability of F-2959 to overcome oxygen inhibition. UV-vis absorption spectroscopy, XPS, SEM, and multi-channel thermo detector were used to prove the migration of F-2959 in the formulations. During photopolymerization, the oxygen inhibition could be obviously decreased as the large amount of photoinitiator at the surface could consume oxygen in the air atmosphere. The fluorine compounds gathering on the surface also reduced the surface energy. By using this strategy, the film surface develops a wrinkled pattern with a low surface energy. And the wrinkled pattern may prove very useful in photopolymerization. © 2015 Elsevier Ltd. All rights reserved.


Yang F.,Beijing University of Chemical Technology | Yang J.,Beijing University of Chemical Technology | Yang J.,China Lucky Group Corporation | Zheng K.,Beijing University of Chemical Technology | And 2 more authors.
Macromolecular Chemistry and Physics | Year: 2015

Ionic liquids are used widely as solvents or electrolytes for electrochemical synthesis and applications due to their wide electrochemical windows, good electrical conductivity, and their excellent solubility to both organic and inorganic compounds. Until now, no papers have reported the use of ionic liquids as initiators in polymerization. In most cases, the kinetics of electro-induced polymerization are studied by gas chromatography (GC), NMR, or the gravimetric method, which are complicated and time consuming. In this paper, the kinetics of electro-induced polymerization of vinyl ethers using ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) as initiator are investigated by real-time Fourier transform near-IR (FT-NIR) spectroscopy. The results show that the ionic liquid BMIMBF4 is an efficient initiator for electro-induced polymerization of vinyl ethers. The final double-bond conversion and polymerization rate can be adjusted by the electric-field intensity and the concentration of the ionic liquid BMIMBF4. Moreover, the post-curing, as well as the obvious inhibition effects of KOH, indicate that the electro-induced polymerization goes through a cationic process. The possible mechanism is also postulated. (Figure Presented). © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Yang F.,Beijing University of Chemical Technology | Zhu X.,Beijing University of Chemical Technology | Li C.,Beijing University of Chemical Technology | Yang J.,Beijing University of Chemical Technology | And 3 more authors.
RSC Advances | Year: 2014

This work presents the electrochemically-induced polymerization of vinyl ether monomers by using potassium hexafluoroantimonate (KSbF6) as the initiating species. Static characterization of the resulting polymers was investigated by ATR-FT-IR. Real-time FT-NIR was used to study the kinetics of the electro-initiated polymerizations. Under certain conditions, rapid cationic polymerization kinetic profiles and high final conversion of monomer to polymer could be obtained. The reaction rate could be readily adjusted based on the applied voltage or by the introduction of an alkaline additive, which along with the observation of extended post curing clearly demonstrated the cationic nature of the electrochemical process. The thermo-stability of the polymerized product was investigated by TGA. This journal is © the Partner Organisations 2014.


Fu Y.,Ocean University of China | Lu Z.,Ocean University of China | Lu Z.,China Lucky Group Corporation | Zai X.,Ocean University of China | Wang J.,Ocean University of China
Journal of Ocean University of China | Year: 2015

Electrode materials have an important effect on the property of microbial fuel cell (MFC). Carbon foam is utilized as an anode and further modified by urea to improve its performance in marine benthic microbial fuel cell (BMFC) with higher voltage and output power. The electrochemical properties of plain carbon foam (PC) and urea-modified carbon foam (UC) are measured respectively. Results show that the UC obtains better wettability after its modification and higher anti-polarization ability than the PC. A novel phenomenon has been found that the electrical potential of the modified UC anode is nearly 100 mV lower than that of the PC, reaching −570 ±10 mV (vs. SCE), and that it also has a much higher electron transfer kinetic activity, reaching 9399.4 mW m−2, which is 566.2-fold higher than that from plain graphite anode (PG). The fuel cell containing the UC anode has the maximum power density (256.0 mW m−2) among the three different BMFCs. Urea would enhance the bacteria biofilm formation with a more diverse microbial community and maintain more electrons, leading to a lower anodic redox potential and higher power output. The paper primarily analyzes why the electrical potential of the modified anode becomes much lower than that of others after urea modification. These results can be utilized to construct a novel BMFC with higher output power and to design the conditioner of voltage booster with a higher conversion ratio. Finally, the carbon foam with a bigger pore size would be a potential anodic material in conventional MFC. © 2015, Science Press, Ocean University of China and Springer-Verlag Berlin Heidelberg.


Wu C.,China Lucky Group Corporation | Li X.,China Lucky Group Corporation | Li L.,China Lucky Group Corporation | Huang S.,China Lucky Group Corporation
Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology | Year: 2014

The latest development of flexible and transparent, ultra-high barrier films was reviewed in a thought provoking way. Its wide applications, such as the flexible electronic packaging materials, solar cell encapsulating materials, flexible organic light emitting diodes, electronic paper, light-weight vacuum insulation panels, etc, have been attracting an increased research interest. The discussions focused on: i) Its synthesis techniques, including polymer multilayer (PML) process, plasma enhanced chemical vapor deposition (PECVD), atomic layer deposition (ALD), dual-target reactive magnetron sputtering, and lamination of composites; ii) Characterization of its microstructures, iii) Its water vapor and oxygen transmission rate (WVTR and OTR). In addition, its development trends, potential applications and market prospects were also briefly discussed. We suggest that reduction of its high fabrication cost be a challenging project for researchers.

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