Title:
METHOD FOR EVALUATING OUTDOOR SERVICE LIFE OF COATING
Document Type and Number:
WIPO Patent Application WO/2023/165437
Kind Code:
A1
Abstract:
A method for evaluating the outdoor service life of a coating. The method comprises the following steps: calculating an ultraviolet irradiation equivalent of a coating during ultraviolet aging and a temperature and humidity aging equivalent of the coating during hygrothermal accelerated aging in each month of twelve months of one year; setting a condition for an accelerated aging test on the basis of the ultraviolet irradiation equivalent and the temperature and humidity aging equivalent in each month, taking one year as a cycle unit, and taking each month as one stage, wherein each cycle unit, i.e. one year, comprises twelve stages; and after the aging in each cycle unit ends, measuring an adhesive force of the coating, performing data fitting on a test result of the adhesive force, and thereby obtaining a service life time when the outdoor coating fails. A method for evaluating the service life of an outdoor coating is established, the theoretical basis and means for coating evaluation are improved, the data is accurately obtained, and a result is accurate.
Inventors:
FANG KEWEI (CN)
LIU HONGQUN (CN)
WANG LI (CN)
LUO KUNJIE (CN)
LI CHENGTAO (CN)
ZHANG YANWEI (CN)
CHEN ZHILIN (CN)
LIU HONGQUN (CN)
WANG LI (CN)
LUO KUNJIE (CN)
LI CHENGTAO (CN)
ZHANG YANWEI (CN)
CHEN ZHILIN (CN)
Application Number:
PCT/CN2023/078406
Publication Date:
September 07, 2023
Filing Date:
February 27, 2023
Export Citation:
Assignee:
SUZHOU NUCLEAR POWER RES INSTITUTE CO LTD (CN)
CHINA GENERAL NUCLEAR POWER GROUP (CN)
CGN POWER CO LTD (CN)
CHINA GENERAL NUCLEAR POWER GROUP (CN)
CGN POWER CO LTD (CN)
International Classes:
G01N17/00
Domestic Patent References:
| WO2002075283A1 | 2002-09-26 |
Foreign References:
| CN114705612A | 2022-07-05 | |||
| CN113640208A | 2021-11-12 | |||
| CN103954550A | 2014-07-30 | |||
| CN110954469A | 2020-04-03 |
Other References:
GAO, CHAOGAN ET AL.: "Environmental Factor Equivalent Accelerated Aging Test Method for Composites", ENGINEERING PLASTICS APPLICATION, vol. 48, no. 8, 31 August 2020 (2020-08-31), pages 104 - 106, XP009548361, ISSN: 1001-3539
LU, LIN ET AL.: "Effect of Photo Degradation on the Adhesion at Acrylic Polyurethane Varnish/steel Interface", ACTA MATERIAE COMPOSITAE SINICA, vol. 28, no. 2, 30 April 2011 (2011-04-30), pages 94 - 95, XP009548362, ISSN: 1000-3851
LU, LIN ET AL.: "Effect of Photo Degradation on the Adhesion at Acrylic Polyurethane Varnish/steel Interface", ACTA MATERIAE COMPOSITAE SINICA, vol. 28, no. 2, 30 April 2011 (2011-04-30), pages 94 - 95, XP009548362, ISSN: 1000-3851
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY , LTD. (CN)
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