纳米TiO_2对涂料性能及VOCs释放的影响
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摘要
为研究不同添加量的纳米TiO_2对涂料漆膜质量、挥发性有机化合物(VOCs)释放的影响,采用超声共混法向涂料中添加涂料成膜物质质量0.05%、0.10%、0.30%、0.50%的纳米TiO_2,将改性后的涂料均匀涂在基材上,按照相关国家标准测试改性涂料漆膜的耐磨性、漆膜硬度、涂层附着力和涂料VOCs的释放量。结果表明:纳米TiO_2可增强涂料漆膜的耐磨性,增强作用随着纳米TiO_2添加量的增加而增强;纳米TiO_2可提高涂料漆膜的硬度和附着力,但与纳米TiO_2添加量并非简单的正比关系。在紫外光照射时,纳米TiO_2会增加涂料在释放初期VOCs的释放量,添加量为0.10%的纳米TiO_2影响最为明显,极大地促进了芳香烃类、酯类、萜烯类、醛酮类物质的降解释放。结合添加不同量纳米TiO_2对涂料漆膜质量(漆膜耐磨性、漆膜硬度、涂层附着力)、VOCs释放的影响以及经济性等,认为纳米TiO_2添加量为0.30%对水性漆、硝基漆改性较为适宜,添加量为0.10%对聚氨酯漆的性能提高较好。
The experiment was conducted to study the effect of different amounts of nano-TiO_2 on coating's film quality and emission of volatile organic compounds( VOCs). Ultrasonic blending method was used to add nanometer-TiO_2 with 0. 05%,0.10%,0.30%,and 0.50% specific gravity of coating film-forming material respectively to coating to make modified coating,and the modified coating was evenly coated on backing. According to the National standards,the paint film wear resistance,film hardness,coating adhesion and emission of VOCs of modified coatings were tested. The nano-TiO_2 enhanced the film wear resistance,which was proportional to the addition amount of nano-TiO_2; Nano-TiO_2 improved the hardness and adhesion of the paint film,but the hardness and adhesion of the paint film were not proportional to the amount of nanoTiO_2 added; Nano-TiO_2 increased the emission amount of volatile organic compounds from coatings at the initial release when induced by UV light,among them,adding 0.10% nano-TiO_2 produced the most obvious effect,which greatly promoted the emission amount of aromatic hydrocarbons,esters,terpenes,and aldehydes ketones. Based on the experimental results of this paper,and taking the economic factors into account,it is concluded that the addition of nano TiO_2 to 0.30% is more suitable for waterborne lacquer and nitrocellulose paint,and the performance of polyurethane paint with 0.1% addition is excellent.
The experiment was conducted to study the effect of different amounts of nano-TiO_2 on coating's film quality and emission of volatile organic compounds( VOCs). Ultrasonic blending method was used to add nanometer-TiO_2 with 0. 05%,0.10%,0.30%,and 0.50% specific gravity of coating film-forming material respectively to coating to make modified coating,and the modified coating was evenly coated on backing. According to the National standards,the paint film wear resistance,film hardness,coating adhesion and emission of VOCs of modified coatings were tested. The nano-TiO_2 enhanced the film wear resistance,which was proportional to the addition amount of nano-TiO_2; Nano-TiO_2 improved the hardness and adhesion of the paint film,but the hardness and adhesion of the paint film were not proportional to the amount of nanoTiO_2 added; Nano-TiO_2 increased the emission amount of volatile organic compounds from coatings at the initial release when induced by UV light,among them,adding 0.10% nano-TiO_2 produced the most obvious effect,which greatly promoted the emission amount of aromatic hydrocarbons,esters,terpenes,and aldehydes ketones. Based on the experimental results of this paper,and taking the economic factors into account,it is concluded that the addition of nano TiO_2 to 0.30% is more suitable for waterborne lacquer and nitrocellulose paint,and the performance of polyurethane paint with 0.1% addition is excellent.
引文
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[9]鲍艳,陈颖.无机纳米材料改性聚氨酯防腐涂料的研究进展[J].涂料工业,2017,47(8):62-69.
[10]王震宇,韩恩厚,刘福春,等.纳米二氧化钛浓缩浆对硼酚醛环氧涂料性能的影响[J].表面技术,2015,44(12):1-5.
[11]MONTESINOS R,REYNOSO R,LVAREZ F,et al.Assessment of novel water-borne coatings obtained from composite latex particles and reinforced with Ti O2nanotubes[J].Polymer-Plastics Technology and Engineering,2015,54(7):730-740.
[12]色漆和清漆耐磨性的测定:旋转橡胶砂轮法:GB/T 1768—2006.
[13]涂膜硬度铅笔测定法:GB/T 6339—1996.
[14]家具表面漆膜理化性能试验第4部分附着力交叉切割测定:GB/T 4893.4—2013.
[15]路则光,申利明,黄河浪,等.木器用水性涂料涂布量对漆膜耐磨性的影响[J].涂料工业,2007,37(3):56-58,61.
[2]赵金榜.21世纪世界涂料技术的发展[J].中国涂料,2001(3):40-44,3.
[3]佟瑞鹏,张磊,杨校毅,等.家具制造过程中VOCs的来源分析及环境健康风险评价[J].环境科学,2018,39(2):672-683.
[4]魏巍,王书肖,郝吉明.中国涂料应用过程挥发性有机物的排放计算及未来发展趋势预测[J].环境科学,2009,30(10):2809-2815.
[5]GALLAGHER M,DALTON P,SITVARIN L,et al.Sensory and analytical evaluations of paints with and without texanol[J].Environmental Science&Technology,2008,42(1):243-248.
[6]CELEBI U B,VARDAR N.Investigation of VOC emissions from indoor and outdoor painting processes in shipyards[J].Atmospheric Environment,2008,42(22):5685-5695.
[7]靳政,刘博,段武彪.纳米二氧化钛光催化材料的研究进展[J].现代化工,2015,35(8):36-40,42.
[8]眭慧东,闫勇,胡晓雪,等.新型纳米Ti O2光触媒乳液的研究进展[J].化工新型材料,2018,46(3):23-26.
[9]鲍艳,陈颖.无机纳米材料改性聚氨酯防腐涂料的研究进展[J].涂料工业,2017,47(8):62-69.
[10]王震宇,韩恩厚,刘福春,等.纳米二氧化钛浓缩浆对硼酚醛环氧涂料性能的影响[J].表面技术,2015,44(12):1-5.
[11]MONTESINOS R,REYNOSO R,LVAREZ F,et al.Assessment of novel water-borne coatings obtained from composite latex particles and reinforced with Ti O2nanotubes[J].Polymer-Plastics Technology and Engineering,2015,54(7):730-740.
[12]色漆和清漆耐磨性的测定:旋转橡胶砂轮法:GB/T 1768—2006.
[13]涂膜硬度铅笔测定法:GB/T 6339—1996.
[14]家具表面漆膜理化性能试验第4部分附着力交叉切割测定:GB/T 4893.4—2013.
[15]路则光,申利明,黄河浪,等.木器用水性涂料涂布量对漆膜耐磨性的影响[J].涂料工业,2007,37(3):56-58,61.