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：US20160256849A1

公开(公告)日：2016-09-08

申请号：US14778102

申请日：2014-10-28

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Zitao Wang ,  Jian Zhao ,  Xioa Hu ,  Qinglin Huang

IPC: B01J20/02 ,  B01J20/32 ,  B01J20/28 ,  B01J20/26 ,  B01J20/22

CPC classification number: B01J20/0262 ,  B01J20/20 ,  B01J20/22 ,  B01J20/26 ,  B01J20/28 ,  B01J20/28045 ,  B01J20/28054 ,  B01J20/30 ,  B01J20/3206 ,  B01J20/3208 ,  B01J20/3212 ,  B01J20/3234 ,  C09K3/32

Abstract: A hollow tubular oil absorbing material includes: a core formed by a spring, and an outer shell formed by a flat sponge wrapped at the spring; wherein the flat sponge is fixed at both ends of the spring; the flat sponge fully covers all the spring or is sealed at a first end; a connecting tube is connected at a second end of the spring for communicating with a vacuum pump; a graphene oxide layer is coated at the outer sponge. The graphene oxide layer on the flat sponge of hollow tubular oil absorbing material is formed by immersion and coating under negative pressure. Further the reduction of graphene oxide is performed with hydrazine hydrate steam and followed by washing and drying. Finally, a hollow tubular oil absorbing material with a spring core and an outer grapheme-coated sponge structure is obtained, which can be applied to continuous oil-water separation.

Abstract translation: 中空管状油吸收材料包括：由弹簧形成的芯和由弹簧包裹的扁平海绵形成的外壳; 其中所述扁平海绵被固定在所述弹簧的两端; 扁平海绵完全覆盖所有弹簧或在第一端密封; 连接管连接在弹簧的第二端，用于与真空泵连通; 在外海绵处涂覆石墨烯氧化物层。 中空管状油吸收材料的扁平海绵上的石墨烯氧化层通过在负压下浸渍和涂覆而形成。 此外，还原石墨烯氧化物是用水合肼蒸汽进行的，随后进行洗涤和干燥。 最后，获得了一种具有弹簧芯和外部刻画海绵结构的中空管状吸油材料，可以应用于连续的油水分离。

公开(公告)号：US09573113B2

公开(公告)日：2017-02-21

申请号：US14778102

申请日：2014-10-28

Applicant: TIANJIN POLYTECHNIC UNIVERSITY

Inventor： Changfa Xiao ,  Zitao Wang ,  Jian Zhao ,  Xiao Hu ,  Qinglin Huang

IPC: B01J20/32 ,  B01J20/02 ,  B01J20/22 ,  B01J20/28 ,  B01J20/30 ,  B01J20/26

CPC classification number: B01J20/0262 ,  B01J20/20 ,  B01J20/22 ,  B01J20/26 ,  B01J20/28 ,  B01J20/28045 ,  B01J20/28054 ,  B01J20/30 ,  B01J20/3206 ,  B01J20/3208 ,  B01J20/3212 ,  B01J20/3234 ,  C09K3/32

Abstract: A hollow tubular oil absorbing material includes: a core formed by a spring, and an outer shell formed by a flat sponge wrapped at the spring; wherein the flat sponge is fixed at both ends of the spring; the flat sponge fully covers all the spring or is sealed at a first end; a connecting tube is connected at a second end of the spring for communicating with a vacuum pump; a graphene oxide layer is coated at the outer sponge. The graphene oxide layer on the flat sponge of hollow tubular oil absorbing material is formed by immersion and coating under negative pressure. Further the reduction of graphene oxide is performed with hydrazine hydrate steam and followed by washing and drying. Finally, a hollow tubular oil absorbing material with a spring core and an outer grapheme-coated sponge structure is obtained, which can be applied to continuous oil-water separation.

Abstract translation: 中空管状油吸收材料包括：由弹簧形成的芯和由弹簧包裹的扁平海绵形成的外壳; 其中所述扁平海绵被固定在所述弹簧的两端; 扁平海绵完全覆盖所有弹簧或在第一端密封; 连接管连接在弹簧的第二端，用于与真空泵连通; 在外海绵处涂覆石墨烯氧化物层。 中空管状油吸收材料的扁平海绵上的石墨烯氧化层通过在负压下浸渍和涂覆而形成。 此外，还原石墨烯氧化物是用水合肼蒸汽进行的，随后进行洗涤和干燥。 最后，获得了一种具有弹簧芯和外部刻画海绵结构的中空管状吸油材料，可以应用于连续的油水分离。

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。