以纳米ZnO、乙醇酸乙酯、异氰酸丙基三乙氧基硅烷(IPTS)为原料,通过脱水缩合制备了一种新型的硅烷偶联剂改性ZnO纳米粒子(I-ZnO)。采用FT-IR、XRD、TG、粒径分析、抑菌圈法等手段表征改性前后纳米ZnO的结构与性能,并探究了不同用量的硅烷偶联剂IPTS对纳米ZnO分散效果的影响。结果表明,I-ZnO(3)(IPTS用量为纳米ZnO用量的25%)样品的分散效果最好,ZnO纳米粒子团聚体的平均粒径最小,为396.9nm,粒径分布系数为0.081。I-ZnO(3)表面有IPTS最大包覆量为4.66%,同时与未改性纳米ZnO相比,I-ZnO(3)具有更优良的抗菌性能。
Using nano-zinc oxide,ethyl glycolate and isocyanatopropyltriethoxysilane (IPTS)as raw materials,a new type of nano-zinc oxide modified by silane coupling agent (I-ZnO) was prepared by dehydration condensation.The structure and properties of nano-zinc oxide before and after modification were characterized by means of FT-IR,XRD,TG,particle size analysis,inhibition zone method,etc.,and the effects of silane coupling agent IPTS with different amounts on the dispersion of nano-zinc oxide were investigated.The results showed that the dispersion effect of I-ZnO(3) (the amount of IPTS was 25% of the amount of nano-ZnO) was the best,with the smallest average particle size of ZnO nanoparticles agglomerated of 396.9nm and a particle size distribution coefficient of 0.081.I-ZnO(3) had a maximum IPTS coverage of 4.66% on its surface.Compared with unmodified nano-zinc oxide,I-ZnO(3) had better antibacterial properties.
[1] 罗佳露. 常见无机抗菌材料的研究进展[J].广州化工,2017,45(16):1-2.
[2] 晋缙. 铜锌复配协同改性聚酯纤维的制备及其抗菌性能研究[D].上海:东华大学,2017.
[3] 陈怀杰,李明伟,刘春梅,等.溶胶-凝胶法制备纳米氧化锌[J].重庆大学学报,2006,29(12):37-40.
[4] Ji P,Wang C S,Jiang Z L,et al.Influence of surface modification of zinc oxide nanoparticles on thermal behavior and hydrophilic property of PET-PEG composites[J].Polymer Composites,2016,37:1830-1838.
[5] Kamiya H,Lijima M.Surface modification and characterization for dispersion stability of inorganic nanometer-scaled particles in liquid media[J].Science and Technology of Advanced Materials,2010,11(4):044304.
[6] 邬继荣,陈利民,许文东.新型硅烷偶联剂研究进展[J].化工生产与技术,2009,16(4):48-50.
[7] 王雅珍,张雪泽,狄语韬.近年硅烷偶联剂在聚合物改性中的研究进展及应用[J].化工新型材料,2018,11:5-7.
[8] Lee C J,Park B G,Jung K H,et al.Effects of silane coupling agents on the adhesion strength of a printed cucircuit on polyimide[J].Science of Advanced Materials,2020,12(4):594-599.
[9] 徐随春,胡雪梅,王毅博,等.纳米氧化锌表面改性研究[J].科技视界,2015(12):36-36.
[10] Khurana N,Arora P,Pente A S,et al.Surface modification of zinc oxide nanoparticles by vinyltriethoxy silane (VTES)[J].Inorganic Chemistry Communications,2021,124(108347):1-8.
[11] 梁永贤. 硅烷偶联剂改性TiO2/聚丙烯酸树脂复合材料的制备及其复鞣性能[J].皮革与化工,2021,38(2):1-9.
[12] 龚兰轩. Cu/ZnO-SiO2复合抗菌改性聚酯纤维的制备及其性能研究[D].上海:东华大学,2020.
[13] 刘会媛. 硅烷偶联剂改性纳米氧化锆及其表征[J].化学研究与应用,2020,32(5):839-844.
[14] 张于弛,江丽芳.KH550改性SiO2/TPU复合材料的制备及性能研究[J].广州化工,2021,49(4):41-43.
[15] 陈金华,樊桢,周海晖,等.表面活性剂对纳米氧化锌合成及分散性的影响[J].湖南大学学报(自然科学版),2004,31(6):1-5.
[16] 李辉,冷莹梦,马长坡,等.聚硅氧烷表面改性TiO2粒子及其超疏水性能[J].精细化工,2021,38(9):1813-1818.
[17] 章君义,冯俊君,白婷.硅烷偶联剂改性ZnO的结构与性能研究[J].粘接,2013(2):49-52.
[18] 余罡. 纳米氧化锌的制备与抗菌性能研究[D].武汉:华中科技大学,2007.
[19] Pasquet J,Chevalier Y,Couval E,et al.Antimicrobial activity of zinc oxide particles on five microorganisms of the challenge tests related to their physicochemical properties[J].International Journal of Pharmaceutics,2014,460(1-2):92-100.
[20] Ragupathi H,Choe Y,Arockiaraj M A,et al.Preferential killing of bacterial cells by surface-modified organosilane-treated ZnO quantum dots synthesized through a co-precipitation method[J].New Journal of Chemistry,2021,45(29):12986-12995.
PDF
