2020 Paint Industry Issue 1 Summary (I)

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01, CuS/FeCuMnCoOx solar selective absorption coating preparation and performance research
abstract: synthesis of FeCuMnCoOx powder by precipitation sintering method, template synthesis of CuS@Cu2O composite powder, using homemade silicone resin as an adhesive, with the above powder for functional fillers to prepare solar absorption coating. Using the composition and structure of XRD and SEM-indicated powder, the spectral reflectivity of coatings from 200 to 2000nm and 3000 to 25000nm (far and far infrared) was measured by ultraviolet visible near-infrared spectrographs and infrared spectrometers, respectively, and the solar absorption and emission rate of the coating were calculated according to the measured spectral reflectivity. The effect of Co's phase and content on coating spectral reflectivity in FeCuMnCoOx powder was studied, and the effect of FeCuMnCoOx powder with CuS@Cu2O on coating solar absorption, emission rate and quality factors

. The results showed that fecuMnCoOx powder phases included (Co, Mn) (Co, Mn) 2O4, CoFeMnO4, CuFeMnO4 and Cu1.5Mn1.5O4. With the increase of Cu1.5Mn1.5O4 and CuFeMnO4, feCuMnCoOx-silicon coatings have reduced reflectivity from 300 to 1400nm, and solar absorption (alphasol) has increased from 92.6% to 93.8%. Synthetic CuS cladding on the surface of the rule twenty-six-sided Body Cu2O, with particle size of 50 to 200nm, spectral reflectivity (200 to 2000nm) lower than commercially available CuS, different CuS/FeCuMnCoOx composite powder ratio of the coating solar absorption rate of 91.8% to 94.5%, emission rate of 17.8% to 21.1%. When m (CuS):m (FeCuMnCoOx) is 1:5, the solar absorption rate alphasol is 94.5%, the emission rate is 298K is 18.2%, the quality factor (alphasol/298K) is 5.19, and the solar selective absorption coating performance is optimal.
keywords: solar absorption; selectivity; powder; FeCuMnCoOx; emission rate
Liu Jiacheng, Yao Bolong, Hu Xucan, Chen Kun, Liu Jing, Li Chengdong (Gangnam University School of Chemistry and Materials Engineering, Wuxi, Jiangsu 21412) 2)
2, polymerized single-group sulfur heterosterone light trigger synthesis and performance research
summary: sulfur heterosterone derivatives UV absorption strong, peak-shaped wide, hydrogen-grabbing ability, easy to regulate and achieve matching with LED light sources. In this paper, a polymerized thiosterone-like light trigger containing the additive seramine is prepared, and the room temperature is liquid and the solubility range is wide. The product has strong absorption in the range of 390 to 405nm, the molar de-lighting coefficient is 104, compared with the commercial commodity of thiosterone, its maximum UV absorption peak red shift of 15 to 20 nm, and has a faster molecular in-molecular charge transfer, the migration rate was reduced from 17.6% to 6.2%. The photolytic properties show that it has photobleaching ability and is compatible with photo-cured monoliths and resins.
keywords: thiosterone; polymerization; solubility; single-parts
Xiao Yahui, Fu Tao, Wu Jingjing, Xiang Created, Wang Wei ( Advanced Catalytic Materials and Reaction Engineering, Anhui Key Laboratory, Hefei University of Technology School of Chemistry and Chemical Engineering, Hefei 230009)
3, Graphene on the water-based epoxy zinc-rich coating zinc powder replacement capacity research
abstract: for the water-based heavy anti-corrosion coating system water-based zinc-rich primer high zinc powder content brought about by the high production costs, not easy to store, environmental pollution, etc. , the use of a small amount of graphene added to the coating to replace part of the zinc powder improvement method. The effects of zinc powder content and graphene addition on the performance of zinc-rich coatings were studied by methods such as momentum polarization curve and electrochemical impedance spectrum, and the results showed that the corrosion resistance of the coating increased with the increase of zinc powder content, and the corrosion rate was 0.00203 mm/year (mm/y) when the coating was in zinc. When powder accounts for 20% of the total mass of zinc powder and vanadium sulfate, with graphene addition increasing from 0 to 0.8% of the total mass of zinc powder, vanadium sulfate and graphene, the corrosion rate increases first and then decreases, when the graphene content reaches 0.6%, the corrosion rate is 0.0038mm/y, and the corrosion resistance of the coating reaches the maximum value.
keywords: epoxy zinc-rich coatings; graphene; corrosion resistance; zinc powder
Liu Jiaming, Hong Yan, Wu Yuxuan, Wang Wei (Southwest Petroleum University School of Materials Science and Engineering, Chengdu 610500)
Process Technology
4, aluminum alloy surface GTMS silane film preparation and corrosion resistance research
Abstract: In order to improve the corrosion resistance of aluminum alloy, the orthographic test method is used to study the best process conditions for the preparation of γ-(2,3-epoxy) propylene-methyloxylsilane (GPTMS) self-assembly film on aluminum alloy surface, and the corrosion resistance of the silicone film on aluminum alloy surface is studied by polarization curve and scanning electron microscope. The results show that the optimum process conditions are 100mL solution, pH=4.5, V (GPTMS): V (EtOH):V (H2O)=2:7:91, T1 (hydrolyzed temperature) =25°C, t1 (hydrolysis time) - 7h, t2 (immersion time) - 10min, t3 (curing time) - 90min, T2 (curing temperature) - 120c, the silane film prepared under the process conditions has excellent corrosion resistance.
keywords: silane membrane; aluminum alloy; orthosis test; corrosion resistance; surface shape
Zhou Yang 1, 2, Fu Wen 2, Niu Yunfeng 2, Lu Daorong 2 (1. Hua electric power science research institute Co., Ltd. Shandong Branch, Jinan 250002; 2. Hefei University of Technology School of Chemical Engineering, Hefei 230009)
5, gasification ash-based putty powder preparation and performance research
abstract: in order to achieve the comprehensive utilization of gasified ash and reduce the cost of putty powder preparation, the technical feasibility of using gasified ash instead of cement to prepare putty powder. With gasified ash and 42.5 cement as the main raw materials, with a small amount of hydroxypropyl methyl cellulose and dispersable latex powder, the preparation of gasified gray-based putty powder, experimental investigation of raw material formulation changes on the performance of putty powder. The results show that it is feasible to prepare putty powder by gasification ash instead of cement products. Among them, gasification ash instead of 50% cement, putty powder bonding strength of 0.82Mpa, the performance is better than the building facade with putty powder standard JG/T157-2009 requirements. Under the same conditions, when gasified ash replaces no more than 70% of cement, the bonding strength of putty powder and other indicators meet the requirements of JG/T157-2009 standard for putty powder for building exterior walls.
keywords: gasified ash; putty powder; hydroxypropyl methyl cellulose; re-dispersable latex powder; bonding strength
Segment Dedan, Liao Hongqiang, Hu Yuzhao, Cheng Fangqin (Shanxi University Institute of Resource and Environmental Engineering, National Key Laboratory for the Efficient Use of Environmental Protection Coal Waste Resources, Key Laboratory for Coal-electric Pollution Control and Waste Resource utilization Shanxi Province, Taiyuan 030006
)6, airflow grinding preparation micron copper oxide and its anti-fouling performance research
abstract: the use of airflow grinding treatment industrial-grade Cu2O, can effectively reduce particle size and distribution range, the average particle size of about 0.98 m micron Cu2O; The results show that compared with industrial-grade Cu2O, the 24h antibacterial and algae-suppressing rates of micron Cu2O can be increased by about 28.82% and 21.82%, respectively, so that anti-fouling coatings have better comprehensive application and anti-fouling properties of solid sea; Cu2O, the anti-fouling coating based on micro-nanoCu2O has a more stable and controlled copper ion seepage performance, avoiding the waste of resources caused by the "explosion" of copper ions caused by nanoCu2O, as well as the defects caused by the insufficient leakage rate of late copper ions.
keywords: micronami; copper oxide; airflow grinding; anti-fouling performance
Copper ion seepage rate
Sun Baoku 1, Lu Ading 1, Hu Jiankun 1, Xu Huanzhi 2, Zhang Haichun 1, Fan Huisheng 1, Yu Xiaofen 1 (1. Zhejiang Marine Development Research Institute, Zhejiang Zhoushan 316021; 2. Zhejiang Ocean University School of Marine Science and Technology, Zhejiang Zhoushan 316004)
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