Reinforced oil-absorptive membrane material, unit and preparation method thereof
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United States of America Patent
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Nov 3, 2016
app pub date -
Jul 13, 2016
filing date -
Nov 19, 2015
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Abstract
A reinforced oil-absorptive membrane material, includes: a tubular support (101) and an oil absorbing layer (102) provided on a surface of the tubular support (101), wherein a plurality of holes are provided on the tubular support (101); and the oil absorbing layer (102) is a piece of nonwoven fabric with a polymer layer provided thereon. The reinforced oil-absorptive membrane material has an excellent oil-absorbing and supportive performance, and is capable of being utilized continuously in a negative pressure suction manner and thus shows high oil absorption efficiency. A method for manufacturing the reinforced oil-absorptive membrane material including pre-treating the nonwoven fabrics by aqueous alkali, covering a membrane casting solution including a solvent, a graphene, polyvinylidene fluoride, pore-forming agent and inorganic particle, and then solidifying and extracting to obtain the oil-absorbing layer.
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