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    Home > Coatings News > Paints and Coatings Market > Abstract No. 4 of the Coatings Industry 2019 (II.)

    Abstract No. 4 of the Coatings Industry 2019 (II.)

    • Last Update: 2020-11-15
    • Source: Internet
    • Author: User
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    Process Technology
    5. Preparation and Performance Research of High Performance Low Surface Treatment Epoxy Coatings
    Abstract: A high-performance corrosion-resistant coating for surface treatment that does not meet the surface of Sa2.5 grade steel structure has been developed, which explores the effects of epoxy resin type, C9 petroleum resin dosage, curing agent type and compounding amount, and the adhesion of the face ratio to coating drying time, basic physical properties and low surface treatment substrate. The study showed that the resin system of replacing 20% epoxy E-20 with C9 petroleum resin, polyamide 115 and N-(3-amino) with equal live hydrogen compounding as a curing agent system, Yanji ratio was controlled at 1.8:1, The comprehensive performance of the coating is the best, the properties of the coating are significantly higher than the requirements of HG/T4564-2013 "low surface treatment tolerance epoxy coating", wet surface adhesion 16.4MPa, rust surface adhesion 15.7MPa, long-lasting anti-corrosion performance is excellent. The coating in various types of low-surface treatment substrate coating performance test, with a construction dry film thickness of more than 250 m, paint film surface without abnormality, to meet the coating requirements of thick slurry paint, excellent construction performance
    China
    .
    keywords: epoxy resin; solid petroleum resin; polyamide; N-(3-amino) arginol; low surface treatment
    Xu Ke, Fang Jianjun, Lian Bingjie (CNOOC Changzhou Coatings and Chemical Research Institute Co., Ltd., Changzhou, Jiangsu 213016)
    6. Waste PET bottle degradation preparation pepper seed oil water-based alcohol Acid Resin
    Summary: A green, environmentally friendly hydrochloric acid resin was prepared using non-edible pepper seed oil (ZSO), trihydroxymethyl propane (TMP), waste PET bottles, phthalates (PA) and water-based monoglycerides (DMPA) through alcoholation, esterification, neutralization and three-step reactions. The effects of oil content, alcohol oversized, acid value and PET polymer on paint film properties were discussed, and the structure and thermal stability of water-based alicic acid resin were tested and indicated by FT-IR, TGA and particle size analysis. The experimental results show that DMPA with 50% oil content, 11.5% alcohol over-volume and 10% is a hydro-hydro monomer synthetic alicic acid resin, which is modified with 9.3% PET de-polymer product to improve its water resistance, thermal stability and hardness, and the product stability is good.
    key words: pepper seed oil; alicylic resin; PET bottle; degradation
    Rey 1, Ma Jianmin x 1,2, Yang Xiufang 1,2 (1. Shaanxi University of Science and Technology School of Chemistry and Chemical Engineering, Xi'an 710021; 2. Shaanxi Province light chemical additives key laboratory Xi'an 710021)
    Health, Safety and Environment
    7. Study of the distribution law of fine particulate matter (PM2.5) in the spraying process by dust sensor
    Summary: The large amount of paint mist produced during coating operation is one of the important sources of fine particulate matter (PM2.5) pollution. It is of great significance to protect workers' health and improve the air quality to carry out the study on the distribution law of PM2.5 when coating and spraying. In this paper, dust sensors are used to analyze the effects of spray distance, time, wind speed, offset distance and other factors on PM2.5 distribution. The results showed that with the increase of spray distance, the concentration of PM2.5 gradually increased at the beginning, then gradually decreased, reached the maximum stable state of 0.9 to 1.2m, gradually increased the concentration of PM2.5 with the increase of spray time, decreased rapidly when windy, decreased with the wind speed, and gradually decreased the concentration of PM2.5 with the distance paint fog center. The radial offset distance is increased, the PM2.5 concentration is reduced, the concentration of PM2.5 below the center of the paint mist is lowered more slowly than the center of the paint mist, and the sensor is arranged at a distance of 0.9 to 1.2m and 0.3 to 0.4m below the center of the paint mist, which can better monitor the concentration of PM2.5 when spraying.
    keywords: coating; Sensors; Fine Particulates; Distribution; Detection
    Qi Jianwei, Duan Haitao, Li Jian (Wuhan Institute of Materials Protection, National Key Laboratory for Special Surface Protection Materials and Applied Technology, Wuhan 430030
    Standards and Testing
    8. Inspection and evaluation of crude oil storage tanks at a terminal processing plant
    Summary: The corrosion of crude oil storage tanks and the overall status quo are evaluated by combining a series of testing methods with the evaluation of finite elements of storage tank structure. The evaluation results show that the appearance, structure and geometry of the tank meet the requirements of safe use, the tank coating and cathode protection system have good protection effect on the tank, and the structure inside and outside the tank conforms to the safety requirements without damage, hardness and thickness.
    key words: crude oil storage tanks; corrosion; detection; finite yuan assessment; cathode protection
    Zhangqian (Zhanjiang Branch of China) Co., Ltd., Zhanjiang, Guangdong 524000)
    2019 "Coating Industry" No. 4 Introduction
    2019 Abstract of The Paint Industry No. 4 (I.)
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