Preparation and performance of modified SiO<sub>2</sub> gel coating filter material

LI Qing; QIAN Fuping; XUE Zhiyi; DONG Wei; HAN Yunlong; LU Jinli

doi:10.13801/j.cnki.fhclxb.20201030.005

Volume 38 Issue 8

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Acta Materiae Compositae Sinica > 2021 > 38(8): 2489-2496

LI Qing, QIAN Fuping, XUE Zhiyi, et al. Preparation and performance of modified SiO2 gel coating filter material[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2489-2496. doi: 10.13801/j.cnki.fhclxb.20201030.005

Citation:

LI Qing, QIAN Fuping, XUE Zhiyi, et al. Preparation and performance of modified SiO₂ gel coating filter material[J]. Acta Materiae Compositae Sinica, 2021, 38(8): 2489-2496. doi: 10.13801/j.cnki.fhclxb.20201030.005

Citation:

PDF( 3692 KB)

Preparation and performance of modified SiO₂ gel coating filter material

doi: 10.13801/j.cnki.fhclxb.20201030.005

School of Architecture and Civil Engineering, Anhui University of Technology, Ma’anshan 243032, China

Received Date: 2020-08-13
Accepted Date: 2020-10-16

Available Online: 2020-10-30

Publish Date: 2021-08-15

Abstract

Abstract

In this paper, from the perspective of surface modification of filter material, how to improve its stability in high humidity environment has been studied. Using polyethylene terephthalate (PET) filter material as the substrate, ethyl orthosilicate (TEOS) as the precursor, and methyltriethoxysilane (MTES) as the low surface energy substance, the sol-gel method was used to generate in-situ on the surface of the filter material SiO₂ nanoparticles to prepare modified SiO₂ gel-coated filter material. Then, FESEM-EDS, FTIR and a contact angle measuring instrument were used to analyze the changes in the surface chemical composition, wettability and surface morphology of the PET filter material. The results show that SiO₂ nanoparticles are formed on the surface after finishing, and the surface is covered with hydrophobic methyl groups after MTES modification treatment. Thus, its hydrophobic property is significantly improved, and its surface water contact angle reaches 154.11°. At the same time, the SiO₂ particles are evenly distributed on the surface, and the gel polymer is only deposited at the intersection of the fibers, which ensures air permeability, and the filtration efficiency increases from 97.0595% to 99.2028%, and the filtration quality factor increases by 30%, from 0.02124 to 0.02761.
- polyethylene terephthalate (PET) fiber filter,
- superhydrophobic property,
- filter performance,
- high wet viscosity particles,
- sol-gel method
Long Abstrsct
Innovation Points

FullText(HTML)

References(27)

References

[1]	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.
[2]	LI J L, ZHOU F B, LI S H. Experimental study on the dust filtration performance with participation of water mist[J]. Process Safety and Environmental Protection,2017,109:357-364. doi: 10.1016/j.psep.2017.04.006
[3]	ANDERSEN B O, NIELSEN N F, WALTHER J H. Numerical and experimental study of pulse jet cleaning in fabric filters[J]. Powder Technology,2016,291:284-298. doi: 10.1016/j.powtec.2015.12.028
[4]	FINDANIS N, SOUTHAM M. Control and management of particulate emissions using improved reverse pulse-jet cleaning systems[J]. Procedia Engineering,2012,49:228-238. doi: 10.1016/j.proeng.2012.10.132
[5]	陈路敏, 钱付平, 叶蒙蒙, 等. 脉冲喷吹清灰高湿粉尘剥落的数学模型研究[J]. 煤炭学报, 2019, 44(S2):683-690. CHEN L M, QIAN F P, YE M M, et al. Research on mathematical model of high humidity dust spalling by pulse jet cleaning[J]. Journal of China Coal Society,2019,44(S2):683-690(in Chinese).
[6]	SRIRAMULU D, REED E L, ANNAMALAI M, et al. Synthesis and characterization of superhydrophobic, self-cleaning NIR-reflective silica nanoparticles[J]. Scientific Reports,2016,6(1):35593.
[7]	CAO C Y, GE M Z, HUANG J Y, et al. Robust fluorine-free superhydrophobic PDMS-ormosil@fabrics for highly effective self-cleaning and efficient oil-water separation[J]. Journal of Materials Chemistry,2016,4(31):12179-12187. doi: 10.1039/C6TA04420D
[8]	LU Y, SATHASIVAM S, SONG J, et al. Robust self-cleaning surfaces that function when exposed to either air or oil[J]. Science,2015,347(6226):1123-1135.
[9]	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
[10]	LU S, ZHAO Y, HU X, et al. Biomimetic fabrication of micron/nano-meter assembled superhydrophobic polymer fiber fabrics for oil/water separation[J]. Materials Letters,2019,262:127152.
[11]	HAO L F, GAO T T, XU W, et al. Preparation of crosslinked polysiloxane/SiO₂ nanocomposite via in-situ condensation and its surface modification on cotton fabrics[J]. Applied Surface Science,2016,371:281-288. doi: 10.1016/j.apsusc.2016.02.204
[12]	KUMAR D, WU X, FU Q T, et al. Development of durable self-cleaning coatings using organic inorganic hybrid sol-gel method[J]. Applied Surface Science,2015,344:205-212. doi: 10.1016/j.apsusc.2015.03.105
[13]	KONG X, ZHU C, LV J, et al. Robust fluorine free superhydrophobic coating on polyester fabrics by spraying commercial adhesive and hydrophobic fumed SiO₂ nanoparticles[J]. Progress in Organic Coatings,2020,138:105342. doi: 10.1016/j.porgcoat.2019.105342
[14]	WU X H, FU Q T, KUMAR D, et al. Mechanically robust superhydrophobic and superhydrophobic coatings derived by sol-gel method[J]. Materials and Design,2016,89:1302-1309. doi: 10.1016/j.matdes.2015.10.053
[15]	张旋宇, 徐丽慧, 沈勇, 等. 疏水SiO₂气凝胶的常压制备及其在棉织物上的应用研究[J]. 功能材料, 2018, 49(3):3118-3123. ZHANG X Y, XU L H, SHEN Y, et al. Preparation of hydrophobic SiO₂ aerogel at atmospheric pressure and its application on cotton fabrics[J]. Functional Materials,2018,49(3):3118-3123(in Chinese).
[16]	LATTHE S S, SUTAR R S, KODAG V S, et al. Self-cleaning superhydrophobic coatings: Potential industrial applications[J]. Progress in Organic Coatings,2019,128:52-58. doi: 10.1016/j.porgcoat.2018.12.008
[17]	YANG J, PU Y, HE H, et al. Superhydrophobic cotton nonwoven fabrics through atmospheric plasma treatment for applications in self-cleaning and oil-water separation[J]. Cellulose,2019,26(12):7507-7522.
[18]	郭颖赫, 赫伟东, 柳静献. 聚对苯二甲酸乙二醇酯纳米纤维膜/涤纶针刺毡过滤复合材料的制备及性能[J]. 复合材料学报, 2019, 36(3):572-577. GUO Y H, HE W D, LIU J X. preparation and properties of polyethylene terephthalate nanofiber membrane/polyester needled felt filter composites[J]. Acta Materiae Compositae Sinica,2019,36(3):572-577(in Chinese).
[19]	徐林, 任煜, 张红阳, 等. 涤纶织物表面TiO₂/氟硅烷超疏水层构筑及其性能[J]. 纺织学报, 2019, 40(12):86-92. XU L, REN Y, ZHANG H Y, et al. Construction and performance of TiO₂/fluorosilane superhydrophobic layer on polyester fabric surface[J]. Journal of Textile Research,2019,40(12):86-92(in Chinese).
[20]	SUN H X, XU Y Y, ZHOU Y Y, et al. Preparation of superhydrophobic nanocomposite fiber membranes by electrospinning poly (vinylidene fluoride)/silane coupling agent modified SiO₂ nanoparticles[J]. Journal of Applied Polymer Science,2017,134(13):44501.
[21]	欧阳舴艋, 李双双, 石琢, 等. 改性纳米SiO₂/硅橡胶复合材料的制备及性能[J]. 复合材料学报, 2019, 36(7):1700-1707. OUYANG Z M, LI S S, SHI Z, et al. Preparation and properties of modified nano-SiO₂/silicone rubber composite[J]. Acta Materiae Compositae Sinica,2019,36(7):1700-1707(in Chinese).
[22]	RAO A V, GURAV A B, LATTHE S S, et al. Water repellent porous silica films by sol-gel dip coating method[J]. Journal of Colloid and Interface Science,2010,352(1):30-35. doi: 10.1016/j.jcis.2010.08.003
[23]	HA T, CHOI S G, JUNG S, et al. The improvement of mechanical and dielectric properties of ordered mesoporous silica film using TEOS-MTES mixed silica precursor[J]. Ceramics International,2008,34(4):947-951. doi: 10.1016/j.ceramint.2007.09.070
[24]	罗文. 超浸润空气过滤织物的制备及其性能研究[D]. 南京: 东南大学, 2018. LUO W. Preparation and performance study of super-soaked air filter fabric[D]. Nanjing: Southeast University, 2018(in Chinese).
[25]	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. DONG W, QIAN F P, LI Q, et al. Preparation and properties of polyethylene terephthalate filter material superhydrophobic surface [J]. Acta Materiae Compositae Sinica, 2020, 37(12): 3017-3025(in Chinese).
[26]	齐春红. 基于低表面能二氧化硅超疏水表面的制备及其防结冰性能研究[D]. 太原: 中北大学, 2020. QI C H. Study on the preparation and anti-icing performance of low surface energy silica superhydrophobic surface[D]. Taiyuan: North China University, 2020(in Chinese).
[27]	李晓霞. 超疏水二氧化硅溶胶的制备及性能应用研究[D]. 济南: 山东大学, 2020. LI X X. Preparation and Application of superhydrophobic silica sol[D]. Ji'nan: Shandong University, 2020(in Chinese).