金红石纳米二氧化钛在涂料中的应用

吴健春

doi:10.7513/j.issn.1004-7638.2021.01.007

金红石纳米二氧化钛在涂料中的应用

doi: 10.7513/j.issn.1004-7638.2021.01.007

吴健春

钒钛资源综合利用国家重点实验室，攀钢集团研究院有限公司，四川攀枝花 617000

基金项目: 四川省科技支撑计划（2015GZ0225）。

详细信息

作者简介:
吴健春（1978—），男，四川简阳人，主要从事硫酸法钛白的工艺开发及纳米二氧化钛制备与应用研究，E-mail: wujianchun@126.com

中图分类号: TF823
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- 被引次数: 0
出版历程
- 收稿日期: 2020-12-15
- 刊出日期: 2021-02-10

Application of rutile nano titanium dioxide in coatings

Wu Jianchun

State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co.,Ltd., Panzhihua 617000, Sichuan, China

摘要

摘要: 利用透射电镜（TEM）对纳米二氧化钛的形貌和粒度进行分析后，将纳米二氧化钛制成乳胶漆、汽车漆、家具漆和防腐漆，对其进行耐候性、随角异色等性能分析。结果表明，金红石纳米二氧化钛可大幅度提高乳胶漆的耐候性、耐水性、耐碱性和耐洗刷性能，可提高家具漆和防腐漆的耐候性；纳米二氧化钛和铝粉配合制成的汽车漆具有随角异色效果，二氧化钛的粒度对其随角异色性能有很大影响，平均粒径为280 nm的普通颜料钛白改性铝粉漆无随角异色效果，平均粒径为35 nm的纳米二氧化钛改性铝粉漆有显著的随角异色效果，并且随纳米二氧化钛加量的增加，其不同角度的颜色差异增大。
- 纳米二氧化钛 /
- 涂料 /
- 汽车漆 /
- 耐候性 /
- 随角异色
Abstract: Based on the morphology and particle size analyses of nano-TiO₂ by transmission electron microscopy (TEM), the nano-TiO₂ was respectively made into latex paint, automobile paint, furniture paint and anti-corrosion paint to investigate the weather resistance and optically variable property. The results show that the rutile nano-TiO₂ can greatly improve the weather resistance, water resistance, alkali resistance and washing resistance of latex paint, and can also improve the weather resistance of furniture paint and anticorrosive paint. The automobile paint containing nano-TiO₂ and aluminum powder has optically variable property, and the particle size of TiO₂ has a great influence on the optically variable property. The aluminum paint modified by the ordinary TiO₂ with an average particle size of 280 nm has no optically variable effect, while it has significant optically variable property with 35 nm TiO₂ as the modifier. And the color difference from various angles increases with increase in the addition of the nano-TiO₂.
- nano-TiO₂ /
- coating /
- automobile paint /
- weather resistance /
- optically variable property

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图 1 普通钛白R706和纳米二氧化钛PGNR-B508的透射电镜照片

Figure 1. TEM of ordinary TiO₂ pigment (R706) and nano-TiO₂ (PGNR-B508)

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图 2 纳米TiO₂改性苯丙乳胶漆的老化试验结果

Figure 2. The aging test results of styrene acrylic latex paint modified by nano-TiO₂

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图 3 纳米钛白与普通钛白改性铝粉漆的五角度颜色对比

Figure 3. Color comparison of five angles between nano titanium dioxide and ordinary titanium dioxide modified aluminum paint

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图 4 不同粒度二氧化钛改性铝粉漆的五角度反射光谱

Figure 4. Five angle reflectance spectra of aluminum paints modified by TiO₂with different particle sizes

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图 5 不同加量纳米二氧化钛改性铝粉漆的五角度颜色对比

Figure 5. Color comparison of five angles during the aluminum paints modified by different amounts of nano titanium dioxide

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图 6 不同比例纳米TiO₂改性家具漆的老化试验结果

Figure 6. Aging test results of furniture paints modified by different proportions of nano-TiO₂

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图 7 不同比例纳米TiO₂改性防腐涂料的老化试验结果

Figure 7. Aging test results of anticorrosive coatings modified by different proportions of nano-TiO₂

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表 1 纳米TiO₂的主要化学成分

Table 1. Chemical compositions of the nano TiO₂ %

试样	TiO₂	SiO₂	Al₂O₃	ZrO₂
PGNR-508	80.10		9.39	1.84
R-706	93.00	3.00	2.50

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表 2 纳米TiO₂改性外墙乳胶漆配方

Table 2. Formulation of exterior wall latex paint modified by nano TiO₂ %

组分	加量	组分	加量
水	21.3	绢白粉	3.3
DA分散剂	0.4	纳米二氧化钛	0.5~3
PE100润湿剂	0.1	乙二醇	2.1
消泡剂	0.2	成膜助剂	1.5
钛白粉	16~19	苯丙乳液	27.8
轻钙	8.1	AT增稠剂	0.6
重钙	11.3
沉淀BaSO₄	3.3	总计	100

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表 3 纳米TiO₂改性苯丙乳胶漆试样编号及纳米TiO₂加量

Table 3. Styrene-acrylic latex paint modified by nano-TiO₂ with different addition amounts %

BBL	BT10	BT20	BT30
0.0	1.0	2.0	3.0

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表 4 汽车漆用纳米二氧化钛浆料配方

Table 4. The formulation of nano-TiO₂ slurry for automotive paint %

原料	加量
溶剂	17.5
添加剂	5.3
纳米TiO₂	35.0
树脂	42.2
合计	100

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表 5 纳米TiO₂改性纯丙乳胶漆耐洗刷次数

Table 5. Washing resistance of nano-TiO₂ modified pure acrylic latex paint

编号	纳米TiO₂加量/%	洗刷次数/次
BBL-1	0	3250
BT10-1	1.0	7250
BT20-1	2.0	8800
BT30-1	3.0	8750

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表 6 纳米TiO₂改性乳胶漆的耐水性和耐碱性

Table 6. Water resistance and alkali resistance of nano-TiO₂ modified latex paint

编号	纳米TiO₂加量/%	耐水性/h	耐碱性/h
BBL-2	0	144	72
BT10-2	1.0	204	204
BT20-3	2.0	204	180
BT30-4	3.0	216	196
注：表中耐水性和耐碱性时间根据开始观察到起泡或开裂等破坏现象的时间减去观察时间间隔(12 h)得出。

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参考文献(10)

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