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Title:
PREPARATION METHOD AND APPLICATION OF ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE COMPOSITE MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2021/073071
Kind Code:
A1
Abstract:
Disclosed are a preparation method and application of an ultra-high molecular weight polyethylene composite membrane. The preparation method comprises the following steps: (1) modifying ultra-high molecular weight polyethylene, specifically, after the ultra-high molecular weight polyethylene is blended with a modifier, making the ultra-high molecular weight polyethylene into granular modified ultra-high molecular weight polyethylene by means of melting; and (2) carrying out co-extrusion on the modified ultra-high molecular weight polyethylene with a thermoplastic elastomer material and/or a transition layer material to form a membrane. According to the size information of a high-altitude wind power blade, the composite membrane is attached manually or mechanically to the wind power blade, and hot-press welding is conducted on a joint after membrane attaching is completed. The composite membrane disclosed in the present invention can realize full-coating protection of the wind power blade, protects the wind power blade from being damaged by dirt and rain erosion during the service period thereof, and has good weather resistance.

Inventors:
WANG QINGZHAO (CN)
LIU PENG (CN)
WANG ZHIMING (CN)
GAO LONGYANG (CN)
Application Number:
PCT/CN2020/088989
Publication Date:
April 22, 2021
Filing Date:
May 07, 2020
Export Citation:
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Assignee:
QINGDAO ARISTOCRAT TECH CO LTD (CN)
International Classes:
B29D7/01; B29C48/08; B29C48/18; B29C48/625; B29C48/92; B29C69/00; B29K23/00; C08J5/18; C08K3/04; C08L23/06
Domestic Patent References:
WO2017012632A12017-01-26
Foreign References:
US20160208773A12016-07-21
US20120034833A12012-02-09
CN110815879A2020-02-21
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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