Roll-to-Roll Transfer of Electrospun Nanofiber Film for High-Efficiency Transparent Air Filter
Roll-to-Roll Transfer of Electrospun Nanofiber Film for High-Efficiency Transparent Air Filter
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DOI：
10.1021/acs.nanolett.5b04596
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发表时间：
2016-02-01
期刊：
影响因子：
10.8
通讯作者：
Cui, Yi
中科院分区：
文献类型：
--
作者：
Xu, Jinwei;Liu, Chong;Cui, Yi
空气中的颗粒物（PM）污染已成为一个严重的环境问题，需要新型的过滤技术。最近，我们已经证明了一种高效的空气过滤器，通过直接静电纺丝的聚合物纤维上的支持网，虽然它的吞吐量是有限的。在这里，我们展示了一种高通量的方法的基础上快速转移的静电纺丝薄膜从粗糙的金属箔的接收网基板。与直接静电纺丝法相比，转移法的速度快10倍，在相同的透射率下具有更好的过滤性能，这是由于转移膜的均匀性（在接近73%的透射率下，PM2.5去除率>99.97%）。利用这些优点，展示了大面积自支撑膜和空气过滤器的卷对卷生产。
Particulate matter (PM) pollution in air has become a serious environmental issue calling for new type of filter technologies. Recently, we have demonstrated a highly efficient air filter by direct electrospinning of polymer fibers onto supporting mesh although its throughput is limited. Here, we demonstrate a high throughput method based on fast transfer of electrospun nanofiber film from roughed metal foil to a receiving mesh substrate. Compared with the direct electrospinning method, the transfer method is 10 times faster and has better filtration performance at the same transmittance, owing to the uniformity of transferred nanofiber film (>99.97% removal of PM2.5 at similar to 73% of transmittance). With these advantages, large area freestanding nanofiber film and roll-to-roll production of air filter are demonstrated.