轨道交通用丙烯酸聚氨酯半光面漆的研究
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摘要
通过添加不同量的消光粉或滑石粉制备出不同配方的丙烯酸聚氨酯半光面漆,并研究其光泽稳定性;采用不同配比的高、低羟值丙烯酸树脂拼用制备了丙烯酸聚氨酯半光漆,并研究其光泽稳定性;研究了流平剂对丙烯酸聚氨酯半光漆漆膜光泽的影响。结果表明:采用消光粉消光的丙烯酸聚氨酯半光漆漆膜光泽不稳定;滑石粉对高羟值丙烯酸聚氨酯面漆漆膜消光效果不好,大量添加会降低漆膜的机械性能和耐候性能;流平剂对丙烯酸聚氨酯半光漆漆膜光泽影响轻微;高、低羟值丙烯酸树脂拼用的半光漆光泽最为稳定,且不牺牲其他性能,配方中填料添加量较少。
Several paints of different formula were made by adding different amounts of flatting powder or talc to acrylic polyurethane finish paint,and their gloss retention were researched; Acrylic polyurethane semi-gloss paints were prepared by mixing high and low hydroxyl acrylic resin with different proportions,and their gloss stability were studied. The effect of leveling agent on gloss of acrylic polyurethane semi-gloss varnish was studied. It was found that the gloss of acrylic polyurethane semi-gloss varnish was unstable with the flatting powder;The talc powder had an undesirable effect on the hydroxyl value acrylic polyurethane finish and large amount of addition reduced the mechanical and weatherability of the film; The leveling agent had a slight influence on the gloss of the acrylic polyurethane semi-gloss coating; Semigloss varnish with high and low hydroxyl value acrylic resin was the most stable varnish without sacrificing other properties and the amount of filler added in the formula was low.
Several paints of different formula were made by adding different amounts of flatting powder or talc to acrylic polyurethane finish paint,and their gloss retention were researched; Acrylic polyurethane semi-gloss paints were prepared by mixing high and low hydroxyl acrylic resin with different proportions,and their gloss stability were studied. The effect of leveling agent on gloss of acrylic polyurethane semi-gloss varnish was studied. It was found that the gloss of acrylic polyurethane semi-gloss varnish was unstable with the flatting powder;The talc powder had an undesirable effect on the hydroxyl value acrylic polyurethane finish and large amount of addition reduced the mechanical and weatherability of the film; The leveling agent had a slight influence on the gloss of the acrylic polyurethane semi-gloss coating; Semigloss varnish with high and low hydroxyl value acrylic resin was the most stable varnish without sacrificing other properties and the amount of filler added in the formula was low.
引文
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[4]陈旭,韩玉红,赵民,等.轨道车辆用功能涂料的应用现状及发展前景[J].涂料工业,2017,47(11):81-87.
[5]曾凡辉,周伟,王浩新,等.城轨车辆用聚氨酯半光漆光泽稳定性的研究[J].中国涂料,2014,29(4):33-36.
[6]刘子康,王新锋,段文峰.弹性耐候丙烯酸聚氨酯涂料的研制[J].新型建筑材料,2015,42(1):39-42.
[7]晏莉.高固体份飞机蒙皮涂料的研制[J].上海涂料,2010,48(8):5-8.
[8]张学敏.涂装工艺学[M].北京:化学工业出版社,2002:174.