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首页> 外文期刊>Journal of Applied Polymer Science >Effect of curing bath conditions on the morphology and structure of poly(high internal phase emulsion) fibers
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Effect of curing bath conditions on the morphology and structure of poly(high internal phase emulsion) fibers

机译：固化浴条件对聚（高内相乳液）纤维形态和结构的影响

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摘要

The potential of polymerizing high internal phase emulsions (HIPEs) as a simple and environmentally friendly technique to fabricating porous fibers has been demonstrated. Porous fibers with varied microstructure can be created through manipulation of the composition of the curing bath in which the HIPEs are polymerized. Osmotic pressure effects, activated through setting the electrolyte concentration in the curing bath different than that of the aqueous phase within the HIPE, can be used to alter the void size near the periphery of the fiber. Adding initiator to the bath triggers a relatively faster polymerization reaction at the HIPE-bath interface, which can lock-in the microstructure before other kinetic effects occur. Including surfactant in the curing bath can affect the HIPE stability and thus the fiber morphology. Porous fibers exhibiting a variety of surface morphologies, ranging from completely closed surfaces to those with 30-mu m voids, have been produced. This new approach enables the possibility of designing porous fibers for different applications via simple manipulation of curing-bath conditions.
机译：聚合高内相乳液（HIPE）作为一种简单且环境友好的方法制备多孔纤维的潜力已得到证实。通过控制HIPE聚合的固化浴的组成，可以制造出具有不同微观结构的多孔纤维。渗透压效应可用于改变纤维外围附近的空隙大小，渗透压效应通过在固化槽中设置不同于HIPE内水相的电解质浓度来激活。向镀液中添加引发剂会在HIPE镀液界面触发相对较快的聚合反应，从而在发生其他动力学效应之前锁定微观结构。在固化浴中加入表面活性剂会影响HIPE的稳定性，从而影响纤维的形态。已经制备出具有各种表面形态的多孔纤维，从完全封闭的表面到具有30μm空隙的表面。这种新方法可以通过简单地控制固化浴条件，为不同的应用设计多孔纤维。

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