本文選題：靜電紡絲技術(shù)　切入點(diǎn)：Janus短纖維　出處：《西南交通大學(xué)》2017年碩士論文

【摘要】：伴隨國家與國家之間的利益越來越緊密、交通運(yùn)輸業(yè)的蓬勃發(fā)展,工業(yè)和生活產(chǎn)生的含油污水混合物造成的污染越來越嚴(yán)重,不僅對野生動植物生存和人類健康造成威脅,而且對水體、大氣、農(nóng)作物生長和自然景觀造成了影響。目前主要物理、化學(xué)、物理化學(xué)方法等將含油污水混合物進(jìn)行回收、分離和循環(huán)使用,但存在分離效果欠佳和二次污染等問題,且無法很好地分離少量懸浮油。隨著科學(xué)研究的深入,固體顆粒替代表面活性劑在油水表面不僅能夠形成尺寸均一的Pickering乳液,而且Pickering乳液具有較好的穩(wěn)定性。本文通過靜電紡絲技術(shù)制備一側(cè)是香豆素-6標(biāo)記的聚(苯乙烯-馬來酸酐)-g-(對芐基氨基)-1,2,4,5-四嗪-6-(2-氰基嘧啶)共聚物、另一側(cè)是羅丹名B標(biāo)記的聚(苯乙烯-馬來酸酐)共聚物的Janus纖維,再通過冰凍切割技術(shù)獲得長徑比不同的Janus短纖維。通過Diels-Alder點(diǎn)擊化學(xué)將疏水性鏈降冰片烯-(雙環(huán)[2.2.1]庚-5-烯-2-棕櫚酰胺)接枝到聚(苯乙烯-馬來酸酐)-g-(對芐基氨基)-1,2,4,5-四嗪-6-(2-氰基嘧啶)共聚物側(cè),通過酰胺反應(yīng)將溫度響應(yīng)性親水性鏈聚(N-異丙基丙烯酰胺)接枝到聚(苯乙烯-馬來酸酐)共聚物側(cè),獲得了長徑比不同、接枝率不同的Janus短纖維。通過正交實(shí)驗(yàn),對極差和變差平方和分析、方差分析、交互作用分析和線性回歸分析等,獲得了 Pickering乳液穩(wěn)定性最好的Janus短纖維參數(shù)。通過Janus短纖維和Janus微球穩(wěn)定性實(shí)驗(yàn),Janus短纖維的不同溫度響應(yīng)性實(shí)驗(yàn),驗(yàn)證接枝聚(N-異丙基丙烯酰胺)分子量為2200 kDa的Janus短纖維具有較好的穩(wěn)定性,并且隨著外界溫度逐漸升高至其最低臨界溶解溫度時(shí)Pickering乳液發(fā)生破乳。紫外-可見分光光度計(jì)檢測結(jié)果顯示,Janus短纖維油水分離次數(shù)可達(dá)到20次以上,且分離效果達(dá)到95%。
[Abstract]:With between the state and national interests more closely, the vigorous development of the transportation industry, the pollution caused by sewage and industrial and mixture of life produces more serious, not only for the survival of wildlife and human health threats, but also to water, atmosphere, crop growth and natural landscape impact. At present the main physical the chemical, physical and chemical methods such as oily wastewater mixture for recycling, separation and recycling, but there is poor separation effect and two pollution problems, and cannot be well separated a small amount of suspended oil. With the in-depth scientific research, solid particles instead of surfactants in oil surface can form a uniform size of Pickering emulsion moreover, the Pickering emulsion has good stability. The paper prepared by electrospinning technique at the side of coumarin -6 labeled poly (styrene maleic anhydride) -g - (benzylamino of -1,2,4,5- -6- (2-) four triazine cyanopyrimidine) copolymer, the other side is Luo Dan B labeled poly (styrene maleic anhydride) copolymer of Janus fiber, and then through the frozen cutting technology to obtain the length diameter ratio of Janus short fiber different by Diels-Alder. Click chemistry hydrophobic norbornene - chain (double loop [2.2.1] g -5- ene -2- palmitic amide) grafted onto poly (styrene - maleic anhydride (-g-) of benzylamino) -1,2,4,5- four in -6- (2- cyanopyrimidine) copolymer side by amidation reaction will be the temperature responsive hydrophilic chain poly (N- isopropylacrylamide) grafted onto poly (styrene maleic anhydride) copolymer the side length diameter ratio, grafting ratio of Janus short fiber different. Through orthogonal experiment, the range and variation of square and analysis, variance analysis, interaction analysis and linear regression analysis, obtained the Janus Pickering emulsion stability is the best. Short fiber parameters. Through the Janus short fiber and Janus microspheres stability experiment, different temperature response experiment of Janus short fiber, verification of grafted poly (N- isopropylacrylamide) with molecular weight of Janus short fiber 2200 kDa has good stability, and with the outside temperature gradually increased to the lower critical solution temperature of Pickering emulsion demulsification occurred. The UV VIS spectrophotometer test results showed that the Janus fiber oil-water separation frequency can reach more than 20 times, and the separation effect can reach 95%.

【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TQ340.1

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本文編號：1697061