公开(公告)号：US10252224B2

公开(公告)日：2019-04-09

申请号：US15113256

申请日：2015-10-29

Applicant: Tianjin Polytechnic University

Inventor： Changfa Xiao ,  Junqiang Hao ,  Jian Zhao ,  Hailiang Liu ,  Qinglin Huang

IPC: B01D71/34 ,  B01D71/82 ,  C02F1/44 ,  B01D69/08 ,  B01D67/00 ,  B01D69/12 ,  C02F101/32

Abstract: The present invention discloses a hydrophobic-oleophilic and hollow fiber composite membrane and preparing method thereof. A preparing method includes preparing hollow tubular braids by two-dimensional braided technique using polyester filaments, wherein the hollow tubular braids are used as the reinforcements. The method further includes mixing polyvinylidene fluoride, hydrophobic pore-forming agent, and the rest of solvent to prepare a casting solution of surface separation layer. The method further includes pre-treatment processing of the reinforcements; and coating the casting solution of surface separation layer on the outer surface of the processed reinforcements through a spinning spinneret to form a primary membrane. The reinforcements are replaced by the primary after post-processing, and repeating the coating process.

公开(公告)号：US20190126209A1

公开(公告)日：2019-05-02

申请号：US16232000

申请日：2018-12-25

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Tai Zhang ,  Junqiang Hao ,  Jian Zhao

IPC: B01D69/04 ,  B01D69/14 ,  B01D71/02 ,  B01D71/34 ,  B29D99/00 ,  B01D69/02 ,  B01D69/10

CPC classification number: B01D69/04 ,  B01D69/02 ,  B01D69/10 ,  B01D69/148 ,  B01D71/021 ,  B01D71/34 ,  B01D2323/18 ,  B01D2323/21 ,  B01D2325/12 ,  B01D2325/38 ,  B29D99/005 ,  B32B1/08 ,  B32B3/26 ,  B32B3/266 ,  B32B5/022 ,  B32B5/08 ,  B32B7/12 ,  B32B27/12 ,  B32B27/304 ,  B32B27/32 ,  B32B27/36 ,  B32B27/40 ,  B32B2255/02 ,  B32B2255/26 ,  B32B2262/0238 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/14 ,  B32B2264/102 ,  B32B2307/726 ,  B32B2307/732 ,  B32B2597/00

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.

公开(公告)号：US20160317975A1

公开(公告)日：2016-11-03

申请号：US15209728

申请日：2016-07-13

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Tai Zhang ,  Junqiang Hao ,  Jian Zhao

IPC: B01D67/00 ,  B32B1/08 ,  B32B27/40 ,  B32B27/32 ,  B01D71/38 ,  B32B27/30 ,  B32B27/12 ,  B32B3/26 ,  B01D69/04 ,  B32B5/02 ,  B32B27/34

CPC classification number: B01D69/04 ,  B01D69/02 ,  B01D69/10 ,  B01D69/148 ,  B01D71/021 ,  B01D71/34 ,  B01D2323/18 ,  B01D2323/21 ,  B01D2325/12 ,  B01D2325/38 ,  B29D99/005 ,  B32B1/08 ,  B32B3/26 ,  B32B3/266 ,  B32B5/022 ,  B32B5/08 ,  B32B7/12 ,  B32B27/12 ,  B32B27/304 ,  B32B27/32 ,  B32B27/36 ,  B32B27/40 ,  B32B2255/02 ,  B32B2255/26 ,  B32B2262/0238 ,  B32B2262/0253 ,  B32B2262/0261 ,  B32B2262/14 ,  B32B2264/102 ,  B32B2307/726 ,  B32B2307/732 ,  B32B2597/00

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.

Abstract translation: 一种增强吸油膜材料，包括：管状支撑件（101）和设置在所述管状支撑件（101）的表面上的吸油层（102），其中在所述管状支撑件（101）上设置有多个孔， ; 吸油层（102）是设置有聚合物层的无纺布片。 增强吸油膜材料具有优异的吸油性能和支撑性能，能够以负压抽吸方式连续使用，因此显示出高吸油效率。 一种增强吸油膜材料的制造方法，其特征在于，包括通过碱水溶液预处理无纺布，覆盖包括溶剂，石墨烯，聚偏二氟乙烯，成孔剂和无机粒子的膜流延溶液，然后固化和提取 以获得吸油层。