分散剂和超剪切对二氧化硅的协同分散作用

doi:10.19964/j.issn.1006-4990.2022-0321

Abstract

Abstract:

In order to improve the dispersion of nano SiO₂ powder to extend its application，a series of terpolymer dispersants were synthesized by free radical solution polymerization with acrylic acid（AA） and butyl acrylate（BA） as main monomers and acrylamide（AM） as functional monomer.The molecular structure of the dispersant was characterized by FT-IR and ¹H-NMR，and its structure was verified.The dispersants were applied to the surface modification of nano-SiO₂ powder to promote its dispersion，and the role of super shear force field on the dispersion of nano SiO₂ powder was also studied.The effects of dispersant dosage，the strength of super shear force field and the time of dispersion on the average particle size of nano-SiO₂ were examined，and the process parameters were optimized.The results of laser diffraction particle size analysis and TEM showed that when the mass proportion of dispersant was 1% of SiO₂，the stiring speed of the super shear force field was 18 000 r/min，and the time of dispersion was 30 min，the dispersion performance of nano SiO₂ suspension was the best，which was due to the synergistic effects of dispersant and super shear.

Key words: acrylic acid, copolymer dispersant, surface modification, supershear, nano SiO₂

CLC Number:

TQ127.2

LIU Xueting, MAO Lingfeng, HU Yun, PENG Xi, FAN Xuemei, CHEN Yanlei, LIU Wenkui. Synergistic dispersion of SiO₂ by dispersant and supershear[J]. Inorganic Chemicals Industry, 2023, 55(3): 71-77.

Figures/Tables 11

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References 15

1	GANJEI Mohamad Amin， AFLAKI Esmail.Application of nano silica to improve self-healing of asphalt mixes[J].Journal of Central South University，2017，24（5）:1019-1026.
2	管若伶，吕本涛.纳米二氧化硅高分子膜的研究应用[J].当代化工，2021，50（12）:2892-2895，2900.
	GUAN Ruoling， LV Bentao.Research and application of nanosilica polymer membrane[J].Contemporary Chemical Industry，2021，50（12）:2892-2895，2900.
3	LI Shuangbing， WANG Jixiao， ZHAO Song，et al.Effect of surface modification and medium on the rheological properties of silica nanoparticle suspensions[J].Ceramics International，2016，42（6）:7767-7773.
4	燕永利，宋兆洋，吴春生，等.纳米SiO₂颗粒表面疏水化改性与调控[J].应用化工，2020，49（5）:1092-1095.
	YAN Yongli， SONG Zhaoyang， WU Chunsheng，et al.Surface hydrophobic modification of nano-SiO₂ particles and its control[J].Applied Chemical Industry，2020，49（5）:1092-1095.
5	WANG Xiang， WANG Peipei， JIANG Yu，et al.Facile surface modification of silica nanoparticles with a combination of noncovalent and covalent methods for composites application[J].Composites Science and Technology，2014，104:1-8.
6	程国君，陈晨，李世迁，等.CaCO₃/SiO₂纳米粒子的表面改性及其对天然胶乳膜抗紫外光老化性能的影响[J].辐射研究与辐射工艺学报，2019，37（6）:12-21.
	CHENG Guojun， CHEN Chen， LI Shiqian，et al.Surface modification of CaCO₃/SiO₂ nanoparticles and its effect on the UV aging resistance of natural rubber latex film[J].Journal of Radiation Research and Radiation Processing，2019，37（6）:12-21.
7	李清江，杨莹，蒋莉，等.表面改性纳米二氧化硅粒子制备与分散性表征分析[J].实验技术与管理，2019，36（10）:159-162.
	LI Qingjiang， YANG Ying， JIANG Li，et al.Analysis of preparation and dispersion characterization of surface modified nano-silica particles[J].Experimental Technology and Management，2019，36（10）:159-162.
8	王建荣，石捷，关芳，等.纳米SiO₂粉体在水泥液相中的分散性[J].中国粉体技术，2021，27（1）:90-96.
	WANG Jianrong， SHI Jie， GUAN Fang，et al.Dispersion of nano-SiO₂ powder in cement liquid phase[J].China Powder Science and Technology，2021，27（1）:90-96.
9	黄山.超分散剂的发展及前景[J].化工设计通讯，2018，44（5）:65.
	HUANG Shan.Development and prospect of hyperdispersants[J].Chemical Engineering Design Communications，2018，44（5）:65.
10	邓晓明，王习魁，张裕中.超剪切在沉淀白炭黑分散细化中的研究[J].化学工程，2006，34（1）:55-57，78.
	DENG Xiaoming， WANG Xikui， ZHANG Yuzhong.Research on ultra-shearing technology of precipitated silica dispersing and disintegrating treatment[J].Chemical Engineering，2006，34（1）:55-57，78.
11	王鑫亮，宋春梅，万波.丙烯酸阴离子型共聚改性分散剂的制备及应用[J].高分子材料科学与工程，2020，36（4）:15-20，28.
	WANG Xinliang， SONG Chunmei， WAN Bo.Preparation and application of acrylic anionic copolymer modified dispersant[J].Polymer Materials Science & Engineering，2020，36（4）:15-20，28.
12	张玲秀，宋丽超，刘艳芳，等.改性TiO₂/SiO₂引发APEG、MA和AM三元共聚的研究[J].山西大学学报:自然科学版，2014，37（3）:420-424.
	ZHANG Lingxiu， SONG Lichao， LIU Yanfang，et al.Study on the copolymerization of APEG，MA and AM triggered by modified TiO₂/SiO₂ nanoparticles[J].Journal of Shanxi University:Natural Science Edition，2014，37（3）:420-424.
13	张勇涛，王芳，王幸，等.共聚物分散剂对氧化铁红颜料的分散作用[J].硅酸盐学报，2017，45（10）:1459-1466.
	ZHANG Yongtao， WANG Fang， WANG Xing，et al.Dispersion of iron oxide red pigment by copolymer dispersant[J].Journal of the Chinese Ceramic Society，2017，45（10）:1459-1466.
14	李红莲，张东亮，吕晨超，等.丙烯酸-丙烯酸丁酯-丙烯酰胺三元共聚物分散剂的制备与分散性能[J].应用化工，2011，40（10）:1792-1795，1799.
	LI Honglian， ZHANG Dongliang，Chenchao LÜ，et al.Preparation and dispersion property of acrylic acid-butyl acrylate-acrylic amide copolymer dispersant[J].Applied Chemical Industry，2011，40（10）:1792-1795，1799.
15	叶申柱，周东，张裕中.应用超剪切技术提高水煤浆分散稳定性的数值模拟[J].煤炭学报，2008，33（4）:444-448.
	YE Shenzhu， ZHOU Dong， ZHANG Yuzhong.Numerical simulation of application of super-shear technology in enhancing CWM′s stability[J].Journal of China Coal Society，2008，33（4）:444-448.

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[12]	ZHANG Guang-Liang, ZHAO Yong-Hong, SONG Peng, LI Guo-Jin. Surface modification of Mg-Al composite flame retardant with fatty acid [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(3): 25-.
[13]	XUE Yong-Ping, AI Chang-Chun, WU Yuan-Xin, TANG Lu. Synthesis and characterization of novel polystyren magnetic microspheres [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(12): 86-.
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[15]	MEI Qing-Bo, ZHU Peng, LIU Hui-Ping, WU Bo, WANG Rong, CHEN Jian-Ying. Research on surface modification of aluminum hydroxide by surfactants of Span [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(4): 14-.

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Inorganic Acid-Base-Salt Committee of CIESC

Synergistic dispersion of SiO₂ by dispersant and supershear

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