有机硅/SiO<sub>2</sub>杂化溶胶改性丙烯酸树脂及性能研究

doi:10.11902/1005.4537.2017.208

中国腐蚀与防护学报

2018, Vol. 38

Issue (6): 601-606 DOI: 10.11902/1005.4537.2017.208

本期目录 | 过刊浏览

有机硅/SiO₂杂化溶胶改性丙烯酸树脂及性能研究

蓝秀玲¹,刘光明¹(

),周街胜²,刘志雷¹,彭叔森¹,李茂东²

1. 南昌航空大学材料科学与工程学院南昌 330063
2. 广州特种承压设备检测研究院广州 510000

Preparation and Properties of Organosilicone/SiO₂Hybrid Sol Modified Acrylic Resin

Xiuling LAN¹,Guangming LIU¹(

),Jiesheng ZHOU²,Zhilei LIU¹,Shusen PENG¹,Maodong LI²

1. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
2. Guangzhou Special Pressure Equipment Testing Institute, Guangzhou 510000, China

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摘要:

以丙烯酸 (AA)、丙烯酸丁酯 (BA)、丙烯酸羟乙酯 (HEA)、甲基丙烯酸甲酯 (MMA)、正硅酸乙酯 (TEOS)，γ-甲基丙烯酰氧基丙基三甲氧基硅烷 (KH-570)、甲基三乙氧基硅烷 (MTES) 和二苯基二甲氧基硅烷 (DDS) 为原料，采用溶液聚合法合成有机硅/SiO₂杂化溶胶改性丙烯酸树脂。探讨不同种类有机硅/SiO₂杂化溶胶及含量对树脂性能的影响。通过红外光谱表征了溶胶及固化后杂化涂层的结构，并测试了漆膜的物理性能以及通过电化学阻抗和浸泡实验对涂膜耐蚀性进行分析。结果表明：有机硅/SiO₂杂化溶胶成功地接枝到水性丙烯酸树脂上。当有机硅/SiO₂杂化溶胶添加量为10% (质量分数) 时，杂化涂层具有良好的柔韧性和附着力，涂膜硬度6H，光泽度104，漆膜长期稳定，具有优异的耐蚀性。

关键词 ：丙烯酸, 杂化溶胶, 电化学阻抗, 耐蚀性

Abstract：

Organosilicon/SiO₂hybrid sols modified water borne acrylic resins were synthesized via solution polymerization process with acrylic-acid (AA), butyl-acrylate (BA), hydroxyethyl-acrylate (HEA), methyl-methacrylate (MMA), tetraethyl (TEOS), 3-methacryloxypropyltrimethoxysilane (KH-570), methyltriethoxysilane (MTES) and diphenyl dimethoxy silane as raw material. The effect of different amount and specie of organosilicon/SiO₂hybrid sols on the properties of the resin was investigated. The structure of the prepared sols and resin films were characterized by infrared spectroscopy (FT-IR). The corrosion resistance and mechanical properties of the coatings on tinplate were as examined by means of immersion test, electrochemical impedance spectroscopy (EIS) and relevant mechanical testing means. The results showed that the organosilicon/SiO₂hybrid sol could be successfully grafted onto the acrylic molecules. Among others, the hybrid resin coating with 10% (mass fraction) organosilicon/SiO₂hybrid sol exhibited excellent comprehensive performance: such as excellent flexibility and adhesion; hardness and gloss as high as 6H and 104, respectively, while high corrosion resistance and long term stabilityetc.

Key words： acrylic-acid hybrid sol electrochemical impedance spectroscopy corrosion-resistance

收稿日期: 2017-12-08

ZTFLH:

TQ632.4

基金资助:国家自然科学基金(51501214);广东省质量技术监督局科技项目(2017CT14);宁波市自然基金(2015A610060)

通讯作者: 刘光明 E-mail: gemliu@126.com

Corresponding author: Guangming LIU E-mail: gemliu@126.com

作者简介: 蓝秀玲，女，1992年生，硕士生

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引用本文:

蓝秀玲,刘光明,周街胜,刘志雷,彭叔森,李茂东. 有机硅/SiO₂杂化溶胶改性丙烯酸树脂及性能研究[J]. 中国腐蚀与防护学报, 2018, 38(6): 601-606.
Xiuling LAN, Guangming LIU, Jiesheng ZHOU, Zhilei LIU, Shusen PENG, Maodong LI. Preparation and Properties of Organosilicone/SiO₂Hybrid Sol Modified Acrylic Resin. Journal of Chinese Society for Corrosion and protection, 2018, 38(6): 601-606.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2017.208 或 https://www.jcscp.org/CN/Y2018/V38/I6/601

表1 不同有机硅/SiO2杂化溶胶改性的丙烯酸树脂涂层的性能

表2 有机硅/SiO2杂化溶胶含量对涂层性能的影响

图1 4种有机硅/SiO2杂化溶胶的红外光谱图

图2 杂化溶胶改性丙烯酸树脂涂层的红外光谱图

图3 改性丙烯酸树脂涂层浸泡30 h后的Nyquist和Bode图

图4 改性丙烯酸树脂涂层浸泡300 h后的Nyquist和Bode图

图5 改性丙烯酸树脂涂层在3.5%NaCl溶液中浸泡30和300 h时的等效电路

表3 改性丙烯酸树脂涂层在3.5%NaCl溶液中浸泡30和300 h的EIS拟合结果

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