Your browser does not fully support modern features. Please upgrade for a smoother experience.
Submitted Successfully!
Thank you for your contribution! You can also upload a video entry or images related to this topic. For video creation, please contact our Academic Video Service.
Version Summary Created by Modification Content Size Created at Operation
1 Jack Zhong -- 153 2026-10-21 10:03:56 |
2 delete Jack Zhong -9 word(s) 144 2026-10-21 10:06:53 |

Video Upload Options

We provide professional Academic Video Service to translate complex research into visually appealing presentations. Would you like to try it?
No, upload directly Yes
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
Zhong, J. UV Resistance. Encyclopedia. Available online: https://encyclopedia.pub/entry/61222 (accessed on 09 November 2026).
Zhong J. UV Resistance. Encyclopedia. Available at: https://encyclopedia.pub/entry/61222. Accessed November 09, 2026.
Zhong, Jack. "UV Resistance" Encyclopedia, https://encyclopedia.pub/entry/61222 (accessed November 09, 2026).
Zhong, J. (2026, October 21). UV Resistance. In Encyclopedia. https://encyclopedia.pub/entry/61222
Zhong, Jack. "UV Resistance." Encyclopedia. Web. 21 October, 2026.

UV Resistance

Edit

UV resistance is the ability of a coating or of a polymer to keep its appearance and its mechanical properties under prolonged ultraviolet exposure. The damage begins with the absorption of a photon by a chromophore, and the resulting radical initiates chain scission or crosslinking [1]. Accelerated weathering reproduces the trend but not the absolute rate, because the spectral power distribution of the lamp differs from that of sunlight [2]. Inorganic absorbers scatter or absorb the ultraviolet before it reaches the bulk, and a clear coating needs particles well below the wavelength of light [3]. Test standards differ in cycle length and in the inclusion of a condensation step, so results from different laboratories are not directly comparable [4]. Water taken up during a humidity cycle accelerates the loss more than the ultraviolet dose alone [5].

photodegradation accelerated weathering ultraviolet absorber chain scission coating durability colour retention condensation cycle
Help expand this entry Share your expertise by adding detailed content and references to improve this entry.
Add content

References

  1. Decker, C.; Masson, F.; Schwalm, R. Weathering resistance of waterbased UV-cured polyurethane-acrylate coatings. Polymer Degradation and Stability 2004, 83, 309-320. [CrossRef]
  2. Awad, S.A.; Mahini, S.S.; Fellows, C.M. Modification of the resistance of two epoxy resins to accelerated weathering using calcium sulfate as a photostabilizer. Journal of Macromolecular Science, Part A 2019, 56, 316-326. [CrossRef]
  3. Majidi, R.; Keramatinia, M.; Ramezanzadeh, B.; Ramezanzadeh, M. Weathering resistance (UV-shielding) improvement of a polyurethane automotive clear-coating applying metal-organic framework (MOF) modified GO nano-flakes (GO-ZIF-7). Polymer Degradation and Stability 2023, 207, 110211. [CrossRef]
  4. Sudoł, E.; Kozikowska, E.; Szewczak, E. Artificial Weathering Resistance Test Methods for Building Performance Assessment of Profiles Made of Natural Fibre-Reinforced Polymer Composites. Materials 2021, 15, 296. [CrossRef]
  5. Patti, A.; Acierno, D. The Puncture and Water Resistance of Polyurethane- Impregnated Fabrics after UV Weathering. Polymers 2019, 12, 15. [CrossRef]
More
©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.
Upload a video for this entry
Information
Subjects: Engineering, Mechanical
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register : Jack Zhong
View Times: 8
Revisions: 2 times (View History)
Update Date: 21 Oct 2026
Table of Contents
    Notice
    You are not a member of the advisory board for this topic. If you want to update advisory board member profile, please contact office@encyclopedia.pub.
    OK
    Confirm
    Only members of the Encyclopedia advisory board for this topic are allowed to note entries. Would you like to become an advisory board member of the Encyclopedia?
    Yes
    No
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    There is no comment~
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    ${ selectedItem.replyTextCharacter }/${ selectedItem.replyMaxCharacter }
    Submit
    Cancel
    Confirm
    Are you sure to Delete?
    Yes No
    Write an Entry
    Feedback