有机硅交联改性含氟共聚物及其棉织物拒水整理耐久性研究
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摘要
在双(3,3,4,4,5,5,6,6,7,7,8,8,8-十三氟辛基)衣康酸酯与甲基丙烯酸甲酯、丙烯酸丁酯和甲基丙烯酸羟乙酯乳液共聚过程中引入乙烯基三乙氧基硅烷单体改性,所得共聚物具有较强的交联反应性。产物应用于棉织物整理后,对水接触角达136.0°,拒水性为90分。以扫描电镜(SEM)和X射线光电子能谱(XPS)表征纤维表面共聚物膜在织物水洗不同次数后的形貌结构和元素分布,研究了共聚物结构与整理耐久性的关系。结果表明,共聚时加入反应性交联单体,拒水整理耐久性改善,当乙烯基三乙氧基硅烷用量为2.0%(对单体总质量)时,整理棉织物经35次标准水洗后,对水接触角仍保持有124.1°。
The copolymerization of bis(perfluoroctyl) itaconic ester with methyl methacrylate, butyl acrylate and hydroxyethyl methacrylate was modified by vinyl triethoxy silane monomer, and the copolymers obtained had strong cross-linking reactivity. When the product was applied in cotton finishing, the water contact angle reached 136.0° and the water repellency was 90. The morphology, structure and element distribution of copolymer membranes on the surface of fibers after different times of washing were characterized by scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). The relationship between copolymer structure and finishing durability was studied. The results showed that the durability of water-repellent finishing was improved by adding reactive cross-linked monomers. When the amount of vinyltriethoxysilane was2.0%(to the total mass of monomers), the water contact angle of finished cotton fabric remained 124.1° after35 times of standard washing.
The copolymerization of bis(perfluoroctyl) itaconic ester with methyl methacrylate, butyl acrylate and hydroxyethyl methacrylate was modified by vinyl triethoxy silane monomer, and the copolymers obtained had strong cross-linking reactivity. When the product was applied in cotton finishing, the water contact angle reached 136.0° and the water repellency was 90. The morphology, structure and element distribution of copolymer membranes on the surface of fibers after different times of washing were characterized by scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). The relationship between copolymer structure and finishing durability was studied. The results showed that the durability of water-repellent finishing was improved by adding reactive cross-linked monomers. When the amount of vinyltriethoxysilane was2.0%(to the total mass of monomers), the water contact angle of finished cotton fabric remained 124.1° after35 times of standard washing.
引文
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[3] MALSHE V C,ELANGO S,BHAGWAT S S,et al.Fluorinated acryliccopolymers partⅡ:polymeric surfactants[J].Progress in Organic Coat-ings,2005,53(3):212-216.
[4]成丽,李战雄,茅沈杰.一种短氟链丙烯酸酯聚合物乳液制备及织物整理[J].印染助剂,2011,28(10):12-14.
[5] HUANG Peiyuan,CHAO Yuchou,LIAO Yihtyan.Preparation of fluoro-acrylate nanocopolymer by miniemulsion polymerization used in tex-tile finishing[J].Journal of Applied Polymer Science,2004,94(4):1 466-1 472.
[6] YANG Tingting,PENG Hui,CHENG Shiyuan.Soap-free emulsion co-polymerization of perfluoroalkyl acrylates in the presence of a reac-tive surfactant[J].Journal of Applied Polymer Science,2007,104(4):2 438-2 444.
[7] CUI Xuejun,ZHONG Shuangling,WANG Hongyan.Synthesis and cha-racterization of emulsifier-free core-shell fluorine-containing polyac-rylate latex[J].Colloid and Surface,2007,303(3):173-178.
[8] GAO Jinzhang,WANG Xuemei,WEI Yunxia.Synthesis and character-ization of a novel fluorine-containing polymer emulsion with core/she-ll structure[J].Journal of Fluorine Chemistry,2006,127(2):282-286.
[9] HUANG Jiqing,MENG Weidong,QING Fengling.Synthesis and repel-lent properties of vinylidene fluoride-containing polyacrylates[J].Journal of Fluorine Chemistry,2007,128(12):1 469-1 477.
[10]杭明伟,朱亚伟.涤纶织物的拒水拒油整理[J].纺织学报,2007,28(9):72-75.
[11]曲爱兰,文秀芳,皮丕辉,等.含氟硅丙烯酸酯乳液超疏水膜中疏水基团的梯度分布与表面微观结构研究[J].高分子学报,2007(12):1 176-1 181.
[12]刘今强,邵建中,王光明,等.羊毛表面改性对拒水拒油整理的作用及机理研究[J].高分子学报,2007(1):75-80.
[13]罗海航,孙华义.精纺呢绒拒水拒油整理及其效果的耐久性研究[J].毛纺科技,1998(1):16-25.
[14] LANGMUIR I.The constitution and fundemental properties of solidand liquid[J].Journal of the American Chemical Society,1916,38(11):2 221-2 295.
[15]袁京,李战雄,樊丹.含氟有机硅拒水整理剂的合成及应用[J].高分子材料科学与工程,2013,29(3):9-13.
[16]胡园园,张超灿,陈艳军,等.氟含量对含氟丙烯酸酯共混乳胶膜梯度结构和表面性能的影响[J].高分子学报,2011(8):838-843.
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