I am using nonwoven polypropylene as support material to collect electrospun mat over it. The problem I am facing is the electrospun mat is not adhering to polypropylene due to its low surface energy. Does anyone have any ideas?
You may also try with corona tretament. But please take into account that the corona treatment should be done before the fiber collection experiment, as oxidized poyolefin surfaces tend to lose their polarity in type (the polar groups tunr inward.) The polarity can be re-gained if the surface is soaked in water for longer time.
is it drum or grid or plate type collector??
We too had this problem with drum type collectors while elctrospinning PvDF.. and we overcame this by pasting 'bamboo chop sticks' on the drum.
thanks for your reply sridhar vadahanambi. am using aluminum plate as collector, over which i place my polypropylene non-woven fabric to collect electrospun mat. as polypropylene surface energy is low, electrospun web is not adhering to it. Tell me that any surface coating or surface treatment over polypropylene to improve its surface energy.
You could try a short Ar/O2 plasma-treatment of the PP non-woven. That will increase the surface energy and could help with your adhesion problem.
You may also try with corona tretament. But please take into account that the corona treatment should be done before the fiber collection experiment, as oxidized poyolefin surfaces tend to lose their polarity in type (the polar groups tunr inward.) The polarity can be re-gained if the surface is soaked in water for longer time.
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