[1]周 涛,李 欢,程 琳,等.纳米杂化有机硅丙烯酸防腐疏水树脂合成及应用[J].徐州工程学院学报(自然科学版),2019,(2):1-9.
 ZHOU Tao,LI Huan,CHENG Lin,et al.Synthesis and Application of Nano-hybrid Silicone-acrylic Antiseptic and Hydrophobic Resin[J].Journal of Xuzhou Institute of Technology(Natural Sciences Edition),2019,(2):1-9.
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纳米杂化有机硅丙烯酸防腐疏水树脂合成及应用()
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《徐州工程学院学报》(自然科学版)[ISSN:1674-358X/CN:32-1789/N]

卷:
期数:
2019年第2期
页码:
1-9
栏目:
教授论坛
出版日期:
2019-05-30

文章信息/Info

Title:
Synthesis and Application of Nano-hybrid Silicone-acrylic Antiseptic and Hydrophobic Resin
文章编号:
1674-358X(2019)02-0001-09
作者:
周 涛李 欢程 琳段凤仪杨其儒孔江榕
(中南大学 化学化工学院,湖南 长沙 410083)
Author(s):
ZHOU TaoLI HuanCHENG LinDUAN FengyiYANG QiruKONG Jiangrong
(School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China)
关键词:
耐候缓释 有机硅丙烯酸树脂 纳米粒子 复合涂料
Keywords:
weather-proof anticorrosion organosilicon acrylic resin nanoparticle composite coating
分类号:
O632.51
文献标志码:
A
摘要:
文章通过有机硅和纳米粒子双重改性提高丙烯酸树脂的综合性能.采用水解缩合法制备有机硅预聚体,再将其通过自由基聚合改性丙烯酸树脂,并在树脂中加入改性的纳米粒子作为填料.实验表明:有机硅成功与丙烯酸单体发生共聚; 有机硅改性有效提高了丙烯酸树脂耐热性和疏水性; 复合纳米粒子比使用单一纳米SiO2或TiO2粒子更能在保证涂层透明性同时保证紫外屏蔽性能,纳米粒子能进一步提高疏水性,并且SAR3涂层接触角达到108.4°; 纳米颗粒添加剂能显著提高防腐性能.SAR3和SAR5的涂层,在3.5% NaCl 溶液中经过1800 h浸泡后涂层电阻仍保持在109 Ω·cm2以上,具有较好防护性能.
Abstract:
The aim of this study is to improve the comprehensive performance of acrylic resin by silicone and nanoparticle modification.Silicone-acrylic(SA)resin was prepared from acrylic monomers and silicone prepolymer through free radical solution polymerization,and then modified nanoparticles were added as filler.FTIR was utilized to study the chemical structure of the coatings and the surface morphology was observed via FESEM.Thermogravimetric analysis(TGA)and contact angle measurement results show that the acrylic resin modified by silicone prepolymer exhibits a better hydrophobicity and an improved heat resistance compared with the unmodified sample.It is also concluded that the nanoparticle additives significantly improve the erosion resistance through electrochemical impedance spectroscopy(EIS).The incorporation of nanoparticles within the hybrid polymeric matrix increased the hydrophobicity in terms of contact angle which reached maximum as 108.4° for SA3 system.SA3 coating maintains a good protection performance with coating resistance more than 109 Ω·cm2 even after 1800 h of steeping in 3.5% NaCl electrolyte medium.

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备注/Memo

备注/Memo:
收稿日期:2019-03-03 基金项目:国家自然科学基金项目(21376269) 作者简介:周 涛(1963-),男,教授,博士,博士生导师,主要从事纳米材料超微细颗粒的制备和表面改性、二次资源回收研究 李 欢(1994-),女,硕士研究生,主要从事高性能丙烯酸树脂涂料研究
更新日期/Last Update: 2019-05-30