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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12139650 B1

PDFFull Text
Date of Patent:
Nov. 12, 2024

Filed:

Dec. 15, 2020

Method for nano-depth surface activation of ptfe-based membrane

Applicants:

China Three Gorges Corporation, Beijing, CN;

China Three Gorges Renewables (Group) Co., Ltd., Beijing, CN;

Nanjing Haohui HI Tech Co., Ltd., Jiangsu, CN;

Inventors:

Jianping Liu, Beijing, CN;

Xin Xiang, Beijing, CN;

Jianhua Wu, Jiangsu, CN;

Yawei Zhu, Jiangsu, CN;

Jingxin Zhao, Jiangsu, CN;

Wenwei Li, Beijing, CN;

Zhengfeng Shuai, Beijing, CN;

Hong Wu, Jiangsu, CN;

Jianping Wu, Jiangsu, CN;

Fangliang Zhao, Beijing, CN;

Assignees:

CHINA THREE GORGES CORPORATION, , CN;

CHINA THREE GORGES RENEWABLES (GROUP) CO., LTD., , CN;

NANJING HAOHUI HI TECH CO., LTD., , CN;

Attorney:
Primary Examiner:

Scott W Dodds

Int. Cl.
CPC ...
C09J 7/24 (2018.01); B29C 59/00 (2006.01); B32B 3/30 (2006.01); B32B 7/14 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 37/00 (2006.01); B32B 37/12 (2006.01); C08J 5/18 (2006.01); C09J 5/02 (2006.01); C09J 7/38 (2018.01); B29C 69/02 (2006.01); B29K 27/18 (2006.01); B29L 7/00 (2006.01); F03D 80/40 (2016.01);
U.S. Cl.
CPC ...
C09J 7/24 (2018.01); B29C 59/005 (2013.01); B32B 3/30 (2013.01); B32B 7/14 (2013.01); B32B 27/08 (2013.01); B32B 27/322 (2013.01); B32B 37/1292 (2013.01); B32B 37/156 (2013.01); C08J 5/18 (2013.01); C09J 5/02 (2013.01); C09J 7/385 (2018.01); B29C 69/02 (2013.01); B29K 2027/18 (2013.01); B29L 2007/002 (2013.01); B32B 2260/02 (2013.01); B32B 2260/046 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/412 (2013.01); B32B 2307/7376 (2023.05); B32B 2309/02 (2013.01); B32B 2309/12 (2013.01); B32B 2309/14 (2013.01); B32B 2323/04 (2013.01); B32B 2327/18 (2013.01); B32B 2603/00 (2013.01); C08J 2327/18 (2013.01); C08J 2483/07 (2013.01); C09J 2203/346 (2020.08); C09J 2203/35 (2020.08); C09J 2427/008 (2013.01); C09J 2433/00 (2013.01); F03D 80/40 (2016.05); F05B 2240/30 (2013.01);
Abstract

A method for nano-depth surface activation of a PTFE-based membrane and relates to the technical field of polymer composites is disclosed. The method comprises the following steps: covering a functional surface of a PTFE-based nano functional composite membrane, performing surface activation treatment on a single surface of the membrane to which a bonding adhesive is applied, and migrating and complexing a high-toughness cold bonding adhesive tape on the membrane surface, with an activated structure layer, of the PTFE-based nano functional composite membrane through a mechanical adhesive applying device to form an adhesive-membrane complex. An extremely strong affinity and a high-strength bonding performance are generated between the membrane and the adhesive, and the adhesive-membrane complex is formed. Integration of membrane/adhesive bonding complexing, membrane/membrane bonding complexing and membrane/adhesive layer bonding is realized.

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