硅烷偶联剂KH570改性TiO<sub>2</sub>超疏水滤料的制备与性能

doi:10.11868/j.issn.1001-4381.2021.000006

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摘要

通过溶胶-凝胶法以钛酸四丁酯为前驱体，醋酸为催化剂制备TiO₂溶胶，利用γ-甲基丙烯酰氧基丙基三甲氧基硅烷（KH570）对其进行低表面能修饰，得到疏水改性的TiO₂溶胶，然后喷涂到滤料表面使其具有超疏水性。对改性前后滤料的润湿性、表面形貌、化学成分和过滤性能进行分析。结果表明：改性涂层均匀沉积在滤料表面，将纤维表面完整包裹，改性后滤料的水接触角达156.29°。在过滤风速为0.043~0.127 m/s时对粒径为0.3 μm的颗粒进行过滤性能测试，改性后滤料的过滤效率比未改性滤料平均增加2.7672%，过滤品质因数增加0.34%，提高了滤料的过滤性能。此外，在经50次砂纸磨损循环和30 h酸碱溶液浸泡后，疏水滤料仍具有超疏水性。通过清洁煤粉污染的表面发现改性滤料具有优异的自清洁性能。

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	李晴
	钱付平
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	鲁进利

关键词 ： TiO₂, PET滤料, 硅烷偶联剂, 超疏水性能, 过滤性能, 表面改性

Abstract：

TiO₂ sol was prepared by sol-gel method using tetrabutyl titanate as precursor and acetic acid as catalyst, and then hydrophobically modified TiO₂ sol was obtained by reducing its surface energy with γ-methacryloxypropyl trimethoxysilane (KH570), the modified TiO₂ sol was sprayed on the surface of the filter media to make it superhydrophobic. The wettability, surface morphology, chemical composition and filtration performance of the filter media before and after modification were analyzed.The results show that the modified coating is uniformly deposited on the surface of the filter media and the fiber surface completely wrapped, and the water contact angle of the modified filter media reaches 156.29°. By testing the filtration performance of the particles with the size of 0.3 μm at the filtration velocity of 0.043-0.127 m/s, it can be seen that the filtration efficiency of the modified filter media is increased by an average of 2.7672% compared with the unmodified filter media, and the filter quality factor is increased by 0.34%, which improves the filtration performance of the filter media. In addition, the hydrophobic filter media still has superhydrophobicity after 50 times of sandpaper abrasion cycles and 30 h acid-base solution immersion. The modified filter media has excellent self-cleaning performance by cleaning the surface of coal powder pollution.

Key words： TiO₂ PET filter media silane coupling agent superhydrophobicity property filtration per-formance surface modification

收稿日期: 2021-01-04 出版日期: 2022-02-23

中图分类号:

TB322

基金资助:安徽省科技重大专项资助项目(18030801109)

通讯作者: 钱付平 E-mail: fpingqian@ahut.edu.cn

作者简介: 钱付平(1974-), 男, 教授, 博士, 博士生导师, 研究方向: 冶金烟气污染控制与超低排放, 联系地址: 安徽省马鞍山市雨山区安徽工业大学能源与环境学院(243002), E-mail: fpingqian@ahut.edu.cn

引用本文:

李晴, 钱付平, 董伟, 韩云龙, 鲁进利. 硅烷偶联剂KH570改性TiO₂超疏水滤料的制备与性能[J]. 材料工程, 2022, 50(2): 144-152.
Qing LI, Fuping QIAN, Wei DONG, Yunlong HAN, Jinli LU. Preparation and properties of TiO₂ superhydrophobic filter media modified by silane coupling agent KH570. Journal of Materials Engineering, 2022, 50(2): 144-152.

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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000006 或 http://jme.biam.ac.cn/CN/Y2022/V50/I2/144

Table 1 生成TiO₂溶胶的原料摩尔比

Fig.1 改性TiO₂溶胶制备的反应过程和涂覆工艺

Fig.2 KH570含量对改性滤料WCA的影响

Fig.3 KH570-TiO₂溶胶改性前后滤料的表面形貌
(a)S₀；(b)S₁；(c)S₂；(d)S₃；(e)S₄；(f)S₅；(g)S₆

Fig.4 未改性(a)和改性滤料(b)的EDS能谱图

Fig.5 改性前后滤料的红外光谱图

Fig.6 改性前后滤料的过滤效率对比及改性后品质因数增加量

Fig.7 改性后滤料的稳定性测试

Fig.8 WCA随磨损循环的变化

Fig.9 WCA随不同pH值的变化

Fig.10 改性前后滤料的自清洁过程对比
(a)改性前；(b)改性后；(1)自清洁前；(2)自清洁中；(3)自清洁后

1	PARK S , JOE Y H , SHIM J , et al. Non-uniform filtration velocity of process gas passing through a long bag filter[J]. Journal of Hazardous Materials, 2019, 365 (5): 440- 447.
2	ZHU M , HAN J , WANG F , et al. Electrospun nanofibers membranes for effective air filtration[J]. Macromolecular Materials & Engineering, 2016, 302 (1): 1600353.
3	SU J , YANG G H , CHENG C , et al. Hierarchically structured TiO₂/PAN nanofibrous membranes for high-efficiency air filtration and toluene degradation[J]. Journal of Colloid and Interface Science, 2017, 507, 386- 396. doi: 10.1016/j.jcis.2017.07.104
4	XU Q , WANG G , XIANG C , et al. Preparation of a novel poly (ether ether ketone) nonwoven filter and its application in harsh conditions for dust removal[J]. Separation and Purification Technology, 2020, 257, 117555.
5	BOUDHAN R , JOUBERT A , DURÉCU S , et al. Influence of air humidity on particle filtration performance of a pulse-jet bag filter[J]. Journal of Aerosol Science, 2019, 130, 1- 9. doi: 10.1016/j.jaerosci.2019.01.002
6	KARIMI L , AZDANSHENAS M E , KHAJAVI R , et al. Using graphene/TiO₂ nanocomposite as a new route for preparation of electroconductive, self-cleaning, antibacterial and antifungal co-tton fabric without toxicity[J]. Cellulose, 2014, 21 (5): 3813- 3827. doi: 10.1007/s10570-014-0385-1
7	TIGNO S D , HERRERA M U , BALELA M . Hydrophobicity of functionalized TiO₂-based kapok nanocomposite[J]. Surface and Coatings Technology, 2018, 350, 857- 862. doi: 10.1016/j.surfcoat.2018.04.017
8	SAM E K , SAM D K , LV X , et al. Recent development in the fabrication of self-healing superhydrophobic surfaces[J]. Chemical Engineering Journal, 2019, 373, 531- 546. doi: 10.1016/j.cej.2019.05.077
9	王霞, 王辉, 侯丽, 等. 超疏水防腐蚀涂层的研究进展[J]. 材料工程, 2020, 48 (6): 73- 81.
9	WANG X , WANG H , HOU L , et al. Research progress of super-hydrophobic anti-corrosion coating[J]. Journal of Materials Engineering, 2020, 48 (6): 73- 81.
10	LI X W , SONG R G , JIANG Y , et al. Surface modification of TiO₂ nanoparticles and its effect on the properties of fluoropolymer/TiO₂ nanocomposite coatings[J]. Applied Surface Science, 2013, 276, 761- 768. doi: 10.1016/j.apsusc.2013.03.167
11	ZHANG Y , CHEN H , WEN Y , et al. Tunable wettability of monodisperse core-shell nano-SiO₂ modified with poly(methylhydrosiloxane) and allyl-poly(ethylene glycol)[J]. Colloids and Surfaces: A, 2014, 441, 16- 24. doi: 10.1016/j.colsurfa.2013.08.079
12	YANG M P , LIU W Q , JIANG C , et al. Robust fabrication of superhydrophobic and photocatalytic self-cleaning cotton textile based on TiO₂ and fluoroalkylsilane[J]. Journal of Materials Science, 2019, 54, 2079- 2092. doi: 10.1007/s10853-018-3001-1
13	RAZMJOU A , ARIFIN E , DONG G X , et al. Superhydrophobic modification of TiO₂ nanocomposite PVDF membranes for applications in membrane distillation[J]. Journal of Membrane Science, 2012, 415/416 (10): 850- 863.
14	ZHOU F , ZHANG Y F , ZHANG D S , et al. Fabrication of robust and self-healing superhydrophobic PET fabrics based on profiled fiber structure[J]. Colloids and Surfaces: A, 2021, 609, 125686. doi: 10.1016/j.colsurfa.2020.125686
15	TENG Y , WANG Y , SHI B , et al. Robust superhydrophobic surface fabrication by fluorine-free method on filter paper for oil/water separation[J]. Polymer Testing, 2020, 91, 106810. doi: 10.1016/j.polymertesting.2020.106810
16	侯根良, 李浩, 毕松, 等. 基于不同粒径SiO₂的疏水薄膜制备及其性能[J]. 材料工程, 2020, 48 (2): 32- 37.
16	HOU G L , LI H , BI S , et al. Preparation and properties of hydrophobic films based on SiO₂ with different particle sizes[J]. Journal of Materials Engineering, 2020, 48 (2): 32- 37.
17	董伟, 钱付平, 李晴, 等. 聚对苯二甲酸乙二醇酯滤料超疏水表面的制备及性能[J]. 复合材料学报, 2020, 37 (12): 3017- 3025.
17	DONG W , QIAN F P , LI Q , et al. Preparation and properties of polyethylene terephthalate filter material with superhydrophobic surface[J]. Acta Materiae Compositae Sinica, 2020, 37 (12): 3017- 3025.
18	HU C , DUO S , ZHANG R , et al. Nanocrystalline anatase TiO₂ prepared via a facile low temperature route[J]. Materials Le-tters, 2010, 64 (19): 2040- 2042. doi: 10.1016/j.matlet.2010.06.059
19	IBRAHIM S A , SREEKANTAN S . Effect of pH on TiO₂ nanoparticles via sol gel method[J]. Advanced Materials Research, 2011, 173, 184- 189.
20	DEJENE F B , ONANI M O , TARUS P K . The effect of rate of hydrolysis on structural and optical properties of the TiO₂ nanoparticles prepared by a sol-gel method[J]. Physica B: Condensed Matter, 2016, 480, 213- 218. doi: 10.1016/j.physb.2015.08.030
21	YANG M P , LIU W Q , JIANG C , et al. Fabrication of superhydrophobic cotton fabric with fluorinated TiO₂ sol by a green and one-step sol-gel process[J]. Carbohydrate Polymers, 2018, 197, 75- 82. doi: 10.1016/j.carbpol.2018.05.075
22	何丽红, 周超, 李力, 等. 硅烷偶联剂表面改性二氧化钛粒子超疏水性能[J]. 精细化工, 2014, 31 (9): 1061- 1064.
22	HE L H , ZHOU C , LI L , et al. Superhydrophobic property of surface modified titanium dioxide with silane coupling agent[J]. Fine Chemicals, 2014, 31 (9): 1061- 1064.
23	WEI B , CHANG Q , BAO C , et al. Surface modification of filter medium particles with silane coupling agent KH550[J]. Colloids and Surfaces: A, 2013, 434, 276- 280. doi: 10.1016/j.colsurfa.2013.05.069
24	TAKAHIRO A , SANJIAY S L , SURESH W G , et al. self-clea-ning TiO₂ coating on cheap, light-weight, flexible polycarbonate substrates[J]. Applied Surface Science, 2018, 458, 917- 923. doi: 10.1016/j.apsusc.2018.07.172
25	张烨. TiO₂纳米粒子的制备及其在织物上的应用[D]. 合肥: 安徽大学, 2012.
25	ZHANG Y. Preparation of TiO₂ nanoparticles and its application in fabric[D]. Hefei: Anhui University, 2012.
26	谭秀民, 冯安生, 赵恒勤. 硅烷偶联剂对纳米二氧化硅表面接枝改性研究[J]. 中国粉体技术, 2011, 17 (1): 14- 17.
26	TAN X M , FENG A S , ZHAO H Q . Study on surface grafting modification of nanometer silicon dioxide by silane coupling agent[J]. China Science Powder and Technology, 2011, 17 (1): 14- 17.
27	QING Y , YANG C , SUN Y , et al. Facile fabrication of superhydrophobic surfaces with corrosion resistance by nanocomposite coating of TiO₂ and polydimethylsiloxane[J]. Colloids and Surfaces: A, 2015, 484, 471- 477. doi: 10.1016/j.colsurfa.2015.08.024
28	DALOD A , HENRIKSEN L , GRANDE T , et al. Functionalized TiO₂ nanoparticles by single-step hydrothermal synthesis: the role of the silane coupling agents[J]. Beilstein Journal of Nanotechnology, 2017, 8 (1): 304- 312.
29	QUAN C , NIKOLAI N L . Adsorption and interaction of orga-nosilanes on TiO₂ nanoparticles[J]. Applied Surface Science, 2010, 257 (5): 1395- 1400. doi: 10.1016/j.apsusc.2010.08.036
30	MOHANNAD D , ATEFEH H . Surface modification of TiO₂nanoparticle by three dimensional silane coupling agent and pre-paration of polyamide/modified-TiO₂ nanocomposites for removal of Cr(Ⅵ) from aqueous solutions[J]. Progress in Organic Coa-tings, 2017, 110, 24- 34. doi: 10.1016/j.porgcoat.2017.04.044
31	CAO B W , WANG S L , DONG W , et al. Investigation of the filtration performance for fibrous media: coupling of a semi-analytical model with CFD on Voronoi-based microstructure[J]. Separation and Purification Technology, 2020, 251, 117364. doi: 10.1016/j.seppur.2020.117364
32	李为民, 彭超义, 杨金水, 等. PTFE/epoxy全有机超疏水涂层制备[J]. 材料工程, 2020, 48 (7): 162- 169.
32	LI W M , PENG C Y , YANG J S , et al. Preparation of all-organic superhydrophobic PTFE/epoxy composite coatings[J]. Journal of Materials Engineering, 2020, 48 (7): 162- 169.
33	LIU Y , ZHAO W , GUO X , et al. An investigation of the effect of particle size on discharge behavior of pulverized coal[J]. Powder Technology, 2015, 284, 47- 56.

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