针对目前溶剂型涂料挥发量大、挥发性有机物质排放多、对环境污染严重的问题,采用本体聚合的方法以羟基丙烯酸酯单体、丙烯酸酯单体为原料合成了羟基丙烯酸酯树脂,并基于丙烯酸酯单体和甲基丙烯酸缩水甘油酯单体进一步合成了环氧丙烯酸酯树脂,优选异氰酸酯型固化剂制备了含双组分丙烯酸酯树脂的新型无溶剂反应型环保涂料。通过电化学工作站和中性盐雾试验考察了涂膜的耐腐蚀性能,利用热重分析仪考察了涂膜的耐热性能,利用傅里叶变换红外光谱仪对涂膜的化学结构进行了表征,比较了不同类型固化剂对涂膜性能的影响,通过扫描电子显微镜观察了涂膜的微观形貌。结果表明:制备的涂膜耐腐蚀性能良好,中性盐雾试验时间可以达到400h;耐热性能较好,300℃失重9％左右;硬度达到6H、沸水煮10h后未发现漆膜发生开裂等缺陷;涂膜表面光滑平整且具有良好的附着力、柔韧性、耐冲击等性能。
In view of the present solvent coating volatilize quantity is large,volatile organic substances emissions,the environmental pollution problems is serious,the method of bulk polymerization was adopt with hydroxyl acrylate monomer and acrylic acid ester monomer as raw materials,synthesized hydroxy acrylic resin.and based on methyl acrylate monomers and glycidyl ester of acrylic monomer,synthesized epoxy acrylic resin.Further optimizing isocyanate curing agent,a new type of solvent-free reaction type environmental protection coating with two-component hydroxy acrylic resin was prepared.By electrochemical workstation and neutral salt spray test examined the corrosion resistance of the coating.The heat-resisting performance was investigated using thermogravimetric analyzer.Using fourier transform infrared spectrometer to characterize the chemical structure of the coating,compared the effects of the different types of curing agent on the properties of coating.By scanning electron microscope,observed the microstructure of the coating.The results shown that the corrosion resistance of the prepared film was good and the test time of neutral salt spray can reach 400h.Good heat resistance,300℃ weight loss of about 9%.No cracking or other defects were found after the hardness of the film reached 6H and being boiled by boiling water for 10 hours.The film surface was smooth,and had good adhesion,flexibility,impact resistance and other properties.
[1] Huang S,Xiao J,Zhu Y,et al.Synthesis and properties of spray-applied high solid content two component polyurethane coatings based on polycaprolactone polyols[J].Progress in Organic Coatings,2017,106:60-68.
[2] Fan L,Wei L,Zhu Y,et al.Synthesis of environmentally friendly acrylonitrile butadiene styrene resin with low VOC[J].Materials,2020,13(7):1663:1-12.
[3] Wang W,Xu S,Wen X,et al.Synthesis and characterization of low-temperature self-crosslinkable acrylic emulsion for PE film ink[J].Fine Chemicals,2015,81:66-71.
[4] Olena Poliarus,Jerzy Morgiel,Piotr Bobrowski,et al.Effect of powder preparation on the microstructure and wear of plasma-sprayed NiAl/CrB2 composite coatings[J].Journal of Thermal Spray Technology,2019,28(5):1039-1048.
[5] Shen L,Pan Y,Fu Heqing.Fabrication of UV curable coating for super hydrophobic cotton fabrics[J].Polymer Engineering & Science,2019,122(11):452-459.
[6] Tiotiu A,Thaon I,Poussel M,et al.Occupational asthma caused bypowder paint in the automotive industry[J].Journal of Investigational Allergology & Clinical Immunology,2019,29(4):22-32.
[7] Wu J B,Zhang R F,Li P,et al.Synthesis of fluorinated polyacrylic acrylate oligomer for the UV-curable coatings[J].Journal of Coatings Technology and Research,2019,16(3):681-688.
[8] Cheng S,Zhao Y,Wu Y.Surfactant-free hybrid latexes from enzymatically hydrolyzed starch and poly(butyl acrylate-methyl methacrylate) for paper coating[J].Progress in Organic Coatings,2018,118:40-47.
[9] Zheng G,Lu M,Rui X,et al.The effect of acrylate on structure and properties of waterborne polyurethane porous coated fabrics[J].Journalof Applied Polymer Science,2017,133(5):45783-45788.
[10] Barbosa J V,Veludo E,Moniz J,et al.Low VOC self-crosslinking waterborne acrylic coatings incorporating fatty acid derivatives[J].Progress in Organic Coatings,2013,76(11):1691-1696.
[11] Weng P,Yin X,Yang S,et al.Functionalized magnesium hydroxide fluids/acrylate-coated hybrid cotton fabric with enhanced mechanical,flame retardant and shape-memory properties[J].Cellulose,2017,25(2):1425-1436.
[12] Dong R,Liu L.Preparation and properties of acrylic resin coating modified by functional graphene oxide[J].Applied Surface Science,2016,368(15):378-387.
[13] 崔灿灿,石家烽,韩忠智,等.船用低温固化丙烯酸聚氨酯防腐蚀涂料[J].表面技术,2017,46(12):12-20.
[14] 李娜张,张占国,左志和,等.环氧丙烯酸树脂的合成及分子量控制方法[J].信息记录材料,2015(1):17-20.
[15] Wang Y,Chen Z H,Yu Fei.Preparation of epoxy-acrylic latex based on bisphenol fepoxy resin[J].Journal of Macromolecular Science Part A:Pure and Applied Chemistry,2018,55(2):205-212.
[16] Aniket Thosar U,Harshal Agarwal,Govarthan S,et al.Comprehensive analytical model for polarization curve of a PEM fuel cell and experimental validation[J].Chemical Engineering Science,2019,12:96-117.
[17] Anagnostopoulos,Costas A.Strength properties of an epoxy resin and cement-stabilized silty clay soil[J].Applied Clay Science,2015,114:517-529.
[18] 赵宇超,张举,吴智华.甲基丙烯酸缩水甘油酯接枝聚乳酸共聚物的制备与表征[J].工程塑料应用,2014,42(1):18-22.
[19] Zhang H,Cheng Y,Hou X J,et al.Ionic effect on the mechanical and swelling properties of poly(acrylic acid/acrylamide) double crosslinking hydrogel[J].New Journal of Chemistry,2018,42(11):132-141.
[20] Zheng K,Hu D,Deng Y,et al.Crosslinking poly(acrylic glycidyl ether) honeycomb film by cationic photopolymerization and its converting to inorganic SiO2,film[J].Applied Surface Science,2017,42(8):123-130.
[21] Lee S Y,Jung W Y,Shin J B,et al.Influence of nano-silica and polyethylene wax on the scratch behavior of acrylic-based polyurethane coatings[J].Journal of Coatings Technology and Research,2019,6:221-230.
[22] Guo D,Hou K,Xu S,et al.Superhydrophobic-superoleophilic stainless steel meshes by spray-coating of a POSS hybrid acrylic polymer for oil-water separation[J].Journal of Materials Science,2018,53(9):6403-6413.
[23] 方冉,耿志远,张兴辉,等.双组分高固体丙烯酸聚氨酯涂料的研究[J].涂料工业,2005,35(1):121-130.
[24] 肖超渤,胡运华.高分子化学[M].武汉:武汉大学出版社,1998:175-176.
[25] Papaj E A,Mills D J,Jamali S S.Effect of hardener variation on protective properties of polyurethane coating[J].Progress in Organic Coatings,2014,77(12):2086-2090.
