Display options
Cite
Bašnec K, Perše LS, Šumiga B, et al. Relation between colour- and phase changes of a leuco dye-based thermochromic composite. Sci Rep. 2018;8(1):5511doi: 10.1038/s41598-018-23789-2.
Bašnec, K., Perše, L. S., Šumiga, B., Huskić, M., Meden, A., Hladnik, A., Podgornik, B. B., & Gunde, M. K. (2018). Relation between colour- and phase changes of a leuco dye-based thermochromic composite. Scientific reports, 8(1), 5511. https://doi.org/10.1038/s41598-018-23789-2
Bašnec, Kristina, et al. "Relation between colour- and phase changes of a leuco dye-based thermochromic composite." Scientific reports vol. 8,1 (2018): 5511. doi: https://doi.org/10.1038/s41598-018-23789-2
Bašnec K, Perše LS, Šumiga B, Huskić M, Meden A, Hladnik A, Podgornik BB, Gunde MK. Relation between colour- and phase changes of a leuco dye-based thermochromic composite. Sci Rep. 2018 Apr 03;8(1):5511. doi: 10.1038/s41598-018-23789-2. PMID: 29615711; PMCID: PMC5882991.
Copy Download .nbib Format: NLM
Share it on

Sci Rep. 2018 Apr 03;8(1):5511. doi: 10.1038/s41598-018-23789-2.

Relation between colour- and phase changes of a leuco dye-based thermochromic composite.

Scientific reports

Kristina Bašnec, Lidija Slemenik Perše, Boštjan Šumiga, Miroslav Huskić, Anton Meden, Aleš Hladnik, Bojana Boh Podgornik, Marta Klanjšek Gunde

Affiliations

  1. Rade?e Papir Nova, d.o.o., Njivice 7, SI-1433, Rade?e, Slovenia.
  2. National Institute of Chemistry, Hajdrihova 19, SI-1000, Ljubljana, Slovenia.
  3. University of Ljubljana, Faculty of Mechanical Engineering, Ašker?eva 6, SI-1000, Ljubljana, Slovenia.
  4. University of Ljubljana, Faculty of Natural Sciences and Engineering, Ašker?eva cesta 12, SI-1000, Ljubljana, Slovenia.
  5. University of Ljubljana, Faculty of Chemistry and Chemical Technology, Ve?na pot 113, SI-1000, Ljubljana, Slovenia.
  6. National Institute of Chemistry, Hajdrihova 19, SI-1000, Ljubljana, Slovenia. [email protected].

PMID: 29615711 PMCID: PMC5882991 DOI: 10.1038/s41598-018-23789-2

Abstract

Reversible colour change of leuco dye-based composites is in general closely related to their phase change, thus the two phenomena should occur at around the same temperature and should be influenced similarly. However, spatial confinement of the analysed sample affects the change in colour differently compared to its phase transition and the most pronounced effects can be observed during cooling. The bulk composite is coloured while still liquid and the colour hysteresis does not exhibit a loop. In an open-porous medium the colouration coincides well with the crystallization and the colour hysteresis widens to about 4 °C. Microencapsulated composite exhibits two crystallization processes, one of them taking place at the bulk crystallization temperature and the other one at about 20 °C lower. Under such conditions the composite is coloured just before the onset of the second crystallization, i.e. about 15 °C below crystallization in the bulk, and the corresponding colour hysteresis widens to 18 °C. The two crystallization forms are thermally independent and have the same crystalline structure. These effects should be taken into account when designing future applications where the phase-changing materials are implemented.

References

  1. Sci Rep. 2016 Oct 10;6:34584 - PubMed
  2. J Phys Condens Matter. 2006 Feb 15;18(6):R15-68 - PubMed
  3. J Microencapsul. 2005 Nov;22(7):715-35 - PubMed
  4. J Colloid Interface Sci. 2005 Jan 15;281(2):299-306 - PubMed
  5. Acta Chim Slov. 2011 Mar;58(1):14-25 - PubMed
  6. Phys Chem Chem Phys. 2015 Jan 14;17(2):1053-9 - PubMed
  7. Sci Rep. 2015 Mar 13;5:9117 - PubMed
  8. ACS Appl Mater Interfaces. 2012 Jun 27;4(6):2940-8 - PubMed
  9. Sci Rep. 2017 Dec 5;7(1):16933 - PubMed
  10. Int J Pharm. 2002 Aug 21;242(1-2):55-62 - PubMed

Publication Types