PS与Gelatin静电纺丝制备刚性乳化剂
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中国科技论文在线
PS 与 Gelatin 静电纺丝制备刚性乳化剂
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李良彬，徐松秀，王寅宁
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基金项目：高等学校博士学科点专项科研基金（200803580011）
作者简介：李良彬，（1972-)，男，教授，高分子材料. E-mail: lbli@mail.ustc.edu.cn
（中国科学技术大学国家同步辐射实验室，合肥 230000）
摘要：利用静电纺丝技术制备了聚苯乙烯（PS）与 Gelatin 复合纳米纤维刚性乳化剂，应用5
扫描电子显微镜（SEM）表征和分析了纤维的形貌，分别研究了溶液浓度、纺丝电压、接收
距离、进样速度等因素对纤维形貌和直径的影响，并用接触角实验和荧光显微镜实验分别从
不同角度对混纺效果进行了验证。结果表明：纤维直径随着纺丝溶液浓度的增加而增大；随
着电压的增加先减小后增加；随着纺丝距离的增加而减小；随着进样速度的减小而减小。混
纺纤维在用荧光染料染色后能发出不同颜色的荧光，通过颜色差能直接观察纤维混纺情况。10
最后对混纺纤维进行了水油测试，该混纺纤维可作为刚性乳化剂，1：1 的水油混合液能在
该刚性乳化剂的作用下成功形成乳状液。
关键词：静电纺丝；PDMS；纳米通道；刚性乳化剂
中图分类号：TS 102.5
15
Preparation a rigid emulsifier by electrospunning
Li Liangbin, Xu Songxiu, Wang Yingning
(University of Science and Technology of China,National Synchrotron Radiation Laboratory,
HeFei 230000)
Abstract: a rigid emulsifier was prepared by electrospinning. Polystyrene (PS) and gelatin 20
composite fibers were successfully prepared by electrospinning of PS blend solution in solvent
mixtures of N,N-dimethylformamide (DMF)/ Tetrahydrofuran(THF) and gelatin in ethylacetate /
acetic acid. The morphology of the eletrospun fibers were characterized by scanning electron
microscopy, while the effects of concentration, applied voltage, electrospun distance, Injection
speed on morphology of the electrospun fibers were investigated. Move over, the effects of the 25
mixed fibers were observed by fluorescence microscopy and the contact angle. The results show
that the fiber diameter is increased with a higher spinning solution, and first decreased and then
increased with its voltage, and decreased with its electrospinning distance smaller. The blended
fibers can be issued with fluorescent dyes of different fluorescence, we can be well observed
fibers situation by color difference. Finally, water-oil blended fibers were tested. The blended 30
fibers can be used as rigid emulsifier. In 1:1 mixture of water and oil solution, emulsion could
successfully formed in the role of the rigid fibers.
Keywords:
electrospinning; PDMS; nano-channel; rigid emulsifie
0 引言 35
随着纳米技术的发展以及 Pickering 乳液在食品、化妆品、医药等领域的潜在应用前景,
人们对 Pickering 乳液给予了较大的关注
[1-3]
。然而目前大部分表面活性剂都是采用化学方法
合成，不仅合成方法复杂而且会对人类生存环境造成副产物污染和危害人体健康
[4-6]
,如化学
合成表面活性剂作为环境激素对人类和动物均有危害，使生物体内分泌失调，出现种种异常
现象。随着纳米技术的发展和人们环保意识的不断增强，新型无污染表面活性剂取代化学合40
成表面活性剂将成为必然发展趋势
[7]
。
化学成分单一和不参杂任何杂质的表面活性剂安全性大大提高，目前，纳米纤维刚性表
面活性剂在国内尚无报道。静电纺丝技术是目前唯一可以制备连续纳米纤维的方法
[8-9]
。静
电纺丝纳米纤维有很多其它材料不具备的优点，如:直径可调、选材多样等。利用静电纺丝
的技术特点
[10-13]
，本文发展了一种新颖的刚性表面活性剂的制备方法。首先通过静电纺丝技45
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