Title:
ULTRAVIOLET CROSS-LINKED POLYPHOSPHAZENE, PREPARATION METHOD THEREFOR, USE THEREOF, TEMPERATURE MEASUREMENT OPTICAL FIBER HAVING COMPOSITE COATING USED IN LOW TEMPERATURE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/052278
Kind Code:
A1
Abstract:
The present application relates to an ultraviolet cross-linked polyphosphazene, a preparation method therefor, use thereof, a temperature measurement optical fiber having a composite coating used in low temperature and a preparation method therefor, and belongs to the technical field of optical fiber manufacturing. The preparation method for the temperature measurement optical fiber having a composite coating used in low temperature comprises the following steps: S1, dispersing the ultraviolet cross-linked polyphosphazene in a tetrahydrofuran solvent, then mixing same with an ultraviolet initiator and a polymerization aid, and sufficiently stirring and defoaming to obtain a coating solution; S2, placing the coating solution in a coating mold, passing a bare optical fiber through the coating mold to carry the coating solution, and passing same through an ultraviolet curing furnace under the protection of nitrogen; and then drying same by means of an air dry oven to form a polyphosphazene elastic coating on the surface of the bare optical fiber; and S3, passing the optical fiber having the polyphosphazene elastic coating through a secondary coating mold containing a low-melting point molten metal, and coating the metal melt on the surface of the polyphosphazene elastic coating, so as to finally obtain the temperature measurement optical fiber having a composite coating used in low temperature. The present invention is able to overcome the disadvantages of cracking and interfacial bonding force degradation of a polymer coating of a conventional optical fiber having a composite coating during metal melt coating.
Inventors:
YUAN WEN (CN)
CAI YUAN (CN)
BAO YING (CN)
XIONG XUMING (CN)
NIU XIAOYE (CN)
CAI YUAN (CN)
BAO YING (CN)
XIONG XUMING (CN)
NIU XIAOYE (CN)
Application Number:
PCT/CN2020/126405
Publication Date:
March 17, 2022
Filing Date:
November 04, 2020
Export Citation:
Assignee:
EASTERN SUPERCONDUCTING TECH SUZHOU CO LTD (CN)
International Classes:
C08G79/025; C03C25/1065; C03C25/16; C09D185/02; G02B6/036
Domestic Patent References:
| WO2003051930A1 | 2003-06-26 |
Foreign References:
| US4242491A | 1980-12-30 | |||
| CN104892948A | 2015-09-09 | |||
| CN1350660A | 2002-05-22 | |||
| CN102618042A | 2012-08-01 | |||
| CN111370765A | 2020-07-03 | |||
| CN108912434A | 2018-11-30 | |||
| JPS6147406A | 1986-03-07 | |||
| JPS59107943A | 1984-06-22 | |||
| US20190112457A1 | 2019-04-18 |
Other References:
"A Colorful World Under Light - Application of Photosensitive Polymer Chemistry, 2nd Edition", 31 January 2012, HUNAN EDUCATION PRESS, CN, ISBN: 978-7-5355-2876-6, article HONG, XIAOYIN: "Photocuring System", pages: 27 - 29, XP009535785
Attorney, Agent or Firm:
SUZHOU WEIJIN PATENT AGENCY (CN)
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