以乙烯基三乙氧基硅烷(ETOS)、三氟氯乙烯(CTFE)、十一烯酸(UA)、羟丁基乙烯基醚(HBVE)、丁基乙烯基醚(BVE)、环己基乙烯基醚(CHVE)为原料,通过溶液聚合后乳化的方法制备了高性能可常温固化的有机硅改性CTFE氟树脂乳液。研究了单体、乳化剂对有机硅改性CTFE氟树脂乳液性能的影响,对有机硅改性CTFE氟树脂乳液膜的硬度、附着力、冲击强度以及耐沸水煮性进行分析,并对其进行了FT-IR、DSC、TGA和SEM表征。结果表明,有机硅改性CTFE氟树脂中BVE和CHVE摩尔比为1∶1、ETOS用量为5%(wt,质量分数)时,乳化后有机硅改性CTFE氟树脂拥有良好的性能,成膜后硬度为2H、附着力为0级、冲击强度高于50kg·cm,耐沸水煮性良好,玻璃化转变温度为28.66℃。
A high performance and ambient-curable silicone modified CTFE fluororesin emulsion was prepared by emulsification after solution polymerization method using vinyl triethoxysilane(ETOS),chlorotrifluoroethylene(CTFE),undecylenic acid(UA),hydroxybutyl vinyl ether(HBVE),n-butyl vinyl ether(BVE) and cyclohexyl vinyl ether(CHVE) as raw materials.The effects of monomer and emulsifier on the properties of emulsion were studied.The hardness,adhesion,impact strength and boiling resistance of fluororesin emulsion film were analyzed,and the emulsion film was analyzed by FT-IR,DSC,TGA and SEM.Results showed that the resin with better performance can be achieved under the following conditions:1∶1 the molar ratio of BVE to CHVE and 5%(wt,quality score,the same below) mass fraction of ETOS.After curing,the emulsion coating had 2H hardness,0 level adhesion,more than 50kg·cm impact strength,high boiling resistance ability,and the glass transition temperature was 28.66℃.
[1] 刘长亮,曹亚成,朱东.分散树脂对含氟树脂涂层耐QUV性能的影响[J].涂料工业,2010,40(10):12-14.
[2] Legras Galle,Gaertner J C.Assessing functional evenness with the FEve index:a word of warning[J].Ecological Indicators,2018,90:257-260.
[3] 王梓,樊佑,王滨,等.一种新型多元共聚含氟丙烯酸树脂的制备及性能研究[J].高分子通报,2016(2):72-78.
[4] 李运德.常温固化FEVE氟碳涂料的应用进展[J].涂料技术与文摘,2013,34(11):7-10.
[5] 刘海涛.FEVE涂料的研究及其在新能源领域应用进展[J].中国建材科技,2017,26(4):58-60.
[6] Kim J O,Sim S,Cho E B.Variation of UV resistance and film property based on crosslinking types of FEVE layer coated over PVDF layer[J].Polymer Korea,2017,41(2):301.
[7] Li L,Guo X C,Zhou Y Y.The research of chemical resistance for air curing FEVE fluorocarbon coatings[J].Advanced Materials Research,2011,239-242:944-948.
[8] Jeong E,Lee B H,Doh S J,et al.Multifunctional surface modification of an aramid fabric via direct fluorination[J].Journal of Fluorine Chemistry,2012,141(141):69-75.
[9] 赵媛媛,罗源军,白鲸,等.影响FEVE型常温固化氟涂料防腐性能的多种因素[J].有机氟工业,2014(4):27-31.
[10] Liu Y Q,Du X L,An Z L.Surface electrical properties of fluorinated epoxy resin and influence of ambient humidity[J].Materials & Manufacturing Processes,2015,30(2):189-193.
[11] Damian C M,Vulcan M A,Zaharia A,et al.Advanced studies on synthesis and cure reaction of fluorinated epoxy resin[J].High Performance Polymers,2016,28(10).
[12] Liu Yaqiang,Li Liqiang.Effects of direct fluorination on surface conductivity of epoxy resin insulators[J].Surface Review & Letters,2014,21(06):1450084.
[13] Liu X,Wang Z,Zhao C,et al.Synthesis,characterization and evaluation of a fluorinated resin monomer with low water sorption[J].J Mech Behav Biomed Mater,2018,77:446-454.
[14] Liu X,Wang Z,Zhao C,et al.Preparation and characterization of silane-modified SiO2 particles reinforced resin composites with fluorinated acrylate polymer[J].J Mech Behav Biomed Mater,2018,80:11-19.
[15] Dou Y,Zhang T,Yao W,et al.Preparation and properties of fluorinated silicone modified epoxy resin composite[J].Polymer Materials Science & Engineering,2017,33(1):50-56.
[16] 许江武.氟碳涂料改性研究进展[J].炭素,2016(1):18-23.
[17] Tanaka H,Suzuki Y,Yoshin F.Water dispersion of fluoring composite resin,preparation thereof and product coated therewith:JP,11269238[P].1999-10-05.
[18] 陈作璋.涂料最新生产技术与配方[M].北京:北京工业出版社,2015.
[19] 朱章龙.有机硅改性聚三氟氯乙烯乳液的合成及其性能研究[D].上海:同济大学,2007.
基金资助
国家自然科学基金项目(21403022);辽宁省高等学校基本科研项目(2017J027)
PDF
(1695KB)
