基于短链含氟丙烯酸酯细乳液的棉织物拒水拒油整理
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摘要
针对织物拒水拒油整理过程中出现的环境污染、整理效果不佳以及耐洗牢度差等问题,通过细乳液聚合法合成了四碳短链含氟丙烯酸酯细乳液,考察了其对棉织物的拒水拒油整理效果。以单因素分析法探讨预处理方式、细乳液质量浓度、预烘工艺及焙烘工艺对棉织物的水油接触角的影响,得到等离子体预处理棉织物拒水拒油整理的最佳工艺条件:细乳液质量浓度为60 g/L,浸渍时间为30 min,80℃预烘3 min,160℃焙烘3 min。在此最佳条件下,棉织物对水、橄榄油和十六烷的接触角分别为160°、154°、135°;经30次洗涤后,棉织物对水、橄榄油和十六烷的接触角分别为145°、133°、113°;整理后棉织物的折皱回复角提高36%,断裂强力及白度均无明显下降。
In view of the problems of environmental pollution,poor finishing effect and washing fastness in the process of water and oil repellent finishing, a C_4 short chain fluorinated acrylate miniemulsion was synthesized by miniemulsion polymerization,and its influence on water and oil repellent finishing of cotton fabric was investigated. The influence of pretreatment method, mass concentration of miniemulsion and drying/curing process on the contact angle of cotton fabric were discussed by univariate analysis. The experimental results show that the water and oil repellent properties of cotton fabric achieve the optimal effect under the conditions of the mass concentration of miniemulsion 60 g/L,the immersion time 30 min, drying at 80 ℃ for 3 min and curing at 160 ℃ for 3 min. In this process, the contact angle of cotton fabric to water is 160°,to olive oil is 154°,to hexadecane is 135°. After 30 times of washing,the contact angle of cotton fabric to water is 145°,to olive oil is 133° and to hexadecane is 113°. In addition, the crease recovery angle of the treated fabric increases by 36%, and the breaking strength and whiteness have no significant decrease.
In view of the problems of environmental pollution,poor finishing effect and washing fastness in the process of water and oil repellent finishing, a C_4 short chain fluorinated acrylate miniemulsion was synthesized by miniemulsion polymerization,and its influence on water and oil repellent finishing of cotton fabric was investigated. The influence of pretreatment method, mass concentration of miniemulsion and drying/curing process on the contact angle of cotton fabric were discussed by univariate analysis. The experimental results show that the water and oil repellent properties of cotton fabric achieve the optimal effect under the conditions of the mass concentration of miniemulsion 60 g/L,the immersion time 30 min, drying at 80 ℃ for 3 min and curing at 160 ℃ for 3 min. In this process, the contact angle of cotton fabric to water is 160°,to olive oil is 154°,to hexadecane is 135°. After 30 times of washing,the contact angle of cotton fabric to water is 145°,to olive oil is 133° and to hexadecane is 113°. In addition, the crease recovery angle of the treated fabric increases by 36%, and the breaking strength and whiteness have no significant decrease.
引文
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[3] LINDSTROM A B,STRYNAR M J, LIBELO E L.Polyfluorinated compounds:past,present,and future[J].Environmental Science & Technology,2011,45(19):7954-7961.
[4] HENRIK B S,STEL J M,MARJIN V D,et al.Acute and chronic toxicity of short chained perfluoroalkyl substances to daphnia magna[J] .Environmental Pollution, 2015,198:47-53.
[5] JIANG J,ZHANG G,WANG Q,et al.Novel fluorinated polymers containing short perfluorobutyl side chains and their super wetting performance on diverse subs-trates[J].Acs Appl Mater Interfaces,2016,8(16):10513-10523.
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[8] DONG C,LU Z,ZHANG F,et al.Preparation and properties of cotton fabrics treated with a novel polysiloxane water repellent and flame retardant[J].Materials Letters,2015,152:276-279.
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[10] DENG B,CAI R,YU Y,et al.Laundering durability of superhydrophobic cotton fabric[J].Advanced Materials,2010,22(48):5473.