{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T08:44:08Z","timestamp":1790153048776,"version":"4.0.1"},"reference-count":55,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2022,9,19]],"date-time":"2022-09-19T00:00:00Z","timestamp":1663545600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Jiangsu Province","award":["BK20201386"],"award-info":[{"award-number":["BK20201386"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>In this paper, urea-formaldehyde resin microcapsules with shellac resin as core material were prepared by in-situ polymerization. Morphologies of shellac resin microcapsules were characterized by optical microscope (OM) and scanning electron microscope (SEM). Both microcapsules were spherical in shape. The encapsulation property of shellac resin was proved by Fourier transform infrared (FTIR). Shellac resin microcapsules and fluorane microcapsules were added to waterborne primer or topcoat at the same time to prepare waterborne coatings with thermochromic and self-healing dual functions. The effects of microcapsules on optical properties, mechanical properties, self-healing properties, anti-aging performance, and thermoreversible discolouration mechanism of coating films were studied. These results showed that the topcoat with 10.0% fluorane microcapsules and 5.0% shellac resin microcapsules had a better comprehensive performance. At this time, the colour of coating transformed yellow into colourless at 32 \u00b0C, and it had a good colour recovery. Shellac resin microcapsules endowed the coating with self-healing performance, and the self-healing rate was 35.9%. The research results provide a reference for the progression of multifunctional wood coatings.<\/jats:p>","DOI":"10.3390\/polym14183919","type":"journal-article","created":{"date-parts":[[2022,9,20]],"date-time":"2022-09-20T04:28:55Z","timestamp":1663648135000},"page":"3919","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Effects of Adding Methods of Fluorane Microcapsules and Shellac Resin Microcapsules on the Preparation and Properties of Bifunctional Waterborne Coatings for Basswood"],"prefix":"10.3390","volume":"14","author":[{"given":"Lin","family":"Wang","sequence":"first","affiliation":[{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China"},{"name":"College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Han","sequence":"additional","affiliation":[{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China"},{"name":"College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoxing","family":"Yan","sequence":"additional","affiliation":[{"name":"Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China"},{"name":"College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"899","DOI":"10.1002\/sia.4839","article-title":"XPS and the medium-dependent surface adaptation of cellulose in wood","volume":"44","author":"Johansson","year":"2012","journal-title":"Surf. Interface Anal."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Zhang, N., Mao, Y.Q., Wu, S.S., and Xu, W. (2022). Effects of the Ball Milling Process on the Particle Size of Graphene Oxide and Its Application in Enhancing the Thermal Conductivity of Wood. Forests, 13.","DOI":"10.3390\/f13081325"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"28","DOI":"10.22382\/wfs-2020-004","article-title":"Effect of coating thickness on sound absorption property of four wood species commonly used for piano soundboards","volume":"52","author":"Xu","year":"2020","journal-title":"Wood Fiber Sci."},{"key":"ref_4","first-page":"178","article-title":"Research on wettability of wood surface with waterborne-resin priming paint","volume":"6","author":"Lu","year":"2021","journal-title":"J. For. Eng."},{"key":"ref_5","first-page":"114","article-title":"Analyses on chemical composition of ancient wood structural component by using near infrared spectroscopy","volume":"6","author":"Fu","year":"2021","journal-title":"J. For. Eng."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"5825","DOI":"10.1007\/s10853-022-06974-7","article-title":"Toward interface optimization of transparent wood with wood color and texture by silane coupling agent","volume":"57","author":"Zhou","year":"2022","journal-title":"J. Mater. Sci."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1016\/j.firesaf.2018.08.002","article-title":"Influence of different parameters in the fire behaviour of seven hardwood species","volume":"107","author":"Haurie","year":"2019","journal-title":"Fire Saf. J."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Liu, Q.Q., Gu, Y.T., Xu, W., Lu, T., Li, W.J., and Fan, H.B. (2022). Compressive Properties of Polyurethane Fiber Mattress Filling Material. App. Sci., 12.","DOI":"10.3390\/app12126139"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Liu, Q., Gao, D., and Xu, W. (2020). Effect of sanding processes on the surface properties of modified poplar coated by primer compared with mahogany. Coatings, 10.","DOI":"10.3390\/coatings10090856"},{"key":"ref_10","first-page":"88","article-title":"Effects of three kinds of fungi on color, chemical composition and route of infection of Picea sitchensis","volume":"6","author":"Zhao","year":"2021","journal-title":"J. For. Eng."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"2749","DOI":"10.1007\/s10570-015-0645-8","article-title":"Hydrophobic cellulose: A material that expands upon drying","volume":"22","author":"Chen","year":"2015","journal-title":"Cellulose"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/S0160-4120(02)00021-1","article-title":"Validity of detection of microbial growth in buildings by trained dogs","volume":"28","author":"Kauhanen","year":"2002","journal-title":"Environ. Int."},{"key":"ref_13","first-page":"167","article-title":"The formation mechanism of \u201cskin-tactile\u201d coating and its application and trends in furniture","volume":"6","author":"Feng","year":"2021","journal-title":"J. For. Eng."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Liu, Q.Q., Gao, D., and Xu, W. (2022). Effect of Polyurethane Non-Transparent Coating Process on Paint Film Performance Applied on Modified Poplar. Coatings, 12.","DOI":"10.3390\/coatings12010039"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Liu, Q.Q., Gao, D., and Xu, W. (2021). Effect of paint process on the performance of modified poplar wood antique. Coatings, 11.","DOI":"10.3390\/coatings11101174"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1007\/s00107-014-0779-7","article-title":"Outdoor weathering performance parameters of exterior wood coating systems on tropical hardwood substrates","volume":"72","author":"Wuijtens","year":"2014","journal-title":"Eur. J. Wood Wood Prod."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"7504","DOI":"10.1016\/j.apsusc.2010.05.097","article-title":"Surface characteristics of coated soft- and hardwoods due to UV-B ageing","volume":"256","author":"Ncube","year":"2010","journal-title":"Appl. Surf. Sci."},{"key":"ref_18","first-page":"35","article-title":"Construction of bionic structural color coating on wood surface based on polystyrene microspheres","volume":"6","author":"Hu","year":"2021","journal-title":"J. For. Eng."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"Liu, Q., Gao, D., and Xu, W. (2021). Influence of the bottom color modification and material color modification process on the performance of modified poplar. Coatings, 11.","DOI":"10.3390\/coatings11060660"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"520","DOI":"10.1007\/BF02969427","article-title":"Retarded dissolution of ibuprofen in gelatin microcapsule by cross-linking with glutaradehyde","volume":"29","author":"Yong","year":"2006","journal-title":"Arch. Pharm. Res."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"103933","DOI":"10.1016\/j.jmps.2020.103933","article-title":"Dynamic plastic deformation and failure mechanisms of individual microcapsule and its polymeric composites","volume":"139","author":"Zhang","year":"2020","journal-title":"J. Mech. Phys. Solids"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"340","DOI":"10.1039\/C5TB02328A","article-title":"Silk sericin microcapsules with hydroxyapatite shells: Protection and modification of organic microcapsules by biomimetic mineralization","volume":"4","author":"Li","year":"2016","journal-title":"J. Mater. Chem. B"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"3","DOI":"10.2174\/138527213805289196","article-title":"A Review of Fabrication methods and applications of novel tailored microcapsules","volume":"17","author":"Kwon","year":"2013","journal-title":"Curr. Org. Chem."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Pak, A.R., Park, J.H., and Lee, S.G. (2019). Blowing properties and functionality of thermoplastic polyester film using thermally expandable microcapsules. Polymers, 11.","DOI":"10.3390\/polym11101652"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"126338","DOI":"10.1016\/j.surfcoat.2020.126338","article-title":"pH-sensitive microcapsules based on biopolymers for active corrosion protection of carbon steel at different pH","volume":"402","author":"Leal","year":"2020","journal-title":"Surf. Coat. Technol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"04021010","DOI":"10.1061\/JPEODX.0000258","article-title":"Effects of microcapsules on self-healing performance of asphalt materials under different loading modes","volume":"147","author":"Sun","year":"2021","journal-title":"J. Transp. Eng. B-Pavements"},{"key":"ref_27","first-page":"831","article-title":"Eye movement evaluation of different wood interior decoration space","volume":"61","author":"Song","year":"2016","journal-title":"Wood Res."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"16933","DOI":"10.1038\/s41598-017-17238-9","article-title":"Fabrication and characterization of reversible thermochromic wood veneers","volume":"7","author":"Zhu","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"7688","DOI":"10.1007\/s10853-017-1036-3","article-title":"Fabrication of smart wood with reversible thermoresponsive performance","volume":"52","author":"Li","year":"2017","journal-title":"J. Mater. Sci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"660","DOI":"10.1007\/s12221-018-7801-3","article-title":"Microencapsulation of Three-component thermochromic system for reversible color change and thermal energy storage","volume":"19","author":"Tozum","year":"2018","journal-title":"Fibers Polym."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Wu, T.H., Yin, T.H., Hu, X.C., Nian, G.D., Qu, S.X., and Yang, W. (2020). A Thermochromic hydrogel for camouflage and soft display. Adv. Opt. Mater., 8.","DOI":"10.1002\/adom.202000031"},{"key":"ref_32","first-page":"1528083720980831","article-title":"Developing of thermal energy storing visual textile temperature indicators based on reversible color change","volume":"51","author":"Tozum","year":"2020","journal-title":"J. Ind. Text."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"453","DOI":"10.2494\/photopolymer.26.453","article-title":"Photochromic characteristic of cationic photoinitiator and fluorane dye system microencapsulated in sub-micrometre scale","volume":"26","author":"Lai","year":"2013","journal-title":"J. Photopolym. Sci. Technol."},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Yan, X.X., Wang, L., and Qian, X.Y. (2020). Effect of microcapsules with different core-wall ratios on properties of waterborne primer coating for european linden. Coatings, 10.","DOI":"10.3390\/coatings10090826"},{"key":"ref_35","first-page":"312","article-title":"Effect of lac treatment on mechanical properties of jute fabric\/polyester resin based biocomposite","volume":"41","author":"Ammayappan","year":"2016","journal-title":"Indian J. Fibre Text."},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Liu, M., Xu, G.L., Wang, J.A., Tu, X.W., Liu, X.Y., Wu, Z.H., Lv, J.F., and Xu, W. (2020). Effects of shellac treatment on wood hygroscopicity, dimensional stability and thermostability. Coatings, 10.","DOI":"10.3390\/coatings10090881"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/j.msea.2003.09.081","article-title":"Preparation of macroporous SiC from Si and wood powder using infiltration-reaction process","volume":"368","author":"Qian","year":"2004","journal-title":"Mater. Sci. Eng. A-Struct."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Yan, X.X., Qian, X.Y., and Chang, Y.J. (2019). Preparation and Characterization of Urea Formaldehyde @ Epoxy Resin Microcapsule on Waterborne Wood Coatings. Coatings, 9.","DOI":"10.3390\/coatings9080475"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Yan, X.X., Zhao, W.T., and Qian, X.Y. (2020). Effect of Urea-Formaldehyde (UF) with Waterborne Emulsion Microcapsules on Properties of Waterborne Acrylic Coatings Based on Coating Process for American Lime. Appl. Sci., 10.","DOI":"10.3390\/app10186341"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Wang, L., and Yan, X.X. (2020). Mechanical and optical properties of thermochromic reversible waterborne primer film on Tilia europaea with 1,2-Benzo-6-diethylaminofluorane based microcapsules. Polymers, 12.","DOI":"10.3390\/polym12092062"},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Yan, X.X., and Wang, L. (2020). Preparation of shellac resin microcapsules coated with urea formaldehyde resin and properties of waterborne paint films for Tilia amurensis Rupr. Membranes, 10.","DOI":"10.3390\/membranes10100278"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"108535","DOI":"10.1016\/j.matdes.2020.108535","article-title":"Microencapsulation of ethylenediamine and its application in binary self-healing system using dual-microcapsule","volume":"189","author":"Hu","year":"2020","journal-title":"Mater. Design"},{"key":"ref_43","doi-asserted-by":"crossref","unstructured":"Yan, X.X., Zhao, W.T., and Wang, L. (2021). Preparation and performance of thermochromic and self-repairing dual function paint film with lac resin microcapsules and fluorane microcapsules. Polymers, 13.","DOI":"10.3390\/polym13183109"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1080\/02773813.2013.861850","article-title":"Investigating the extent of urea formaldehyde resin cure in medium density fiberboard: Resin extractability and fiber effects","volume":"34","author":"Grigsby","year":"2014","journal-title":"J. Wood Chem. Technol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"3119","DOI":"10.1039\/C8TB03102A","article-title":"Boosting the antimicrobial action of vancomycin formulated in shellac nanoparticles of dual-surface functionality","volume":"7","author":"Halbus","year":"2019","journal-title":"J. Mater. Chem. B"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1016\/j.chroma.2014.02.063","article-title":"Characterisation and discrimination of various types of lac resin using gas chromatography mass spectrometry techniques with quaternary ammonium reagents","volume":"1338","author":"Sutherland","year":"2014","journal-title":"J. Chromatogr. A"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1590\/0104-1428.01616","article-title":"Effect of addition of clay minerals on the properties of epoxy\/polyester powder coatings","volume":"28","author":"Relosi","year":"2018","journal-title":"Polimeros"},{"key":"ref_48","first-page":"35","article-title":"Fracture Toughness and repeated impact fatigue properties of Cr-N hard coatings","volume":"39","author":"Tian","year":"2010","journal-title":"Rare Met. Mater. Eng."},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Yan, X.X., Wang, L., and Qian, X.Y. (2019). Effect of urea-formaldehyde-coated epoxy microcapsule modification on gloss, toughness and chromatic distortion of acrylic copolymers waterborne coating. Coatings, 9.","DOI":"10.3390\/coatings9040239"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"183","DOI":"10.4028\/www.scientific.net\/AMR.1142.183","article-title":"Material design and experiment test of a high-impedance complex film","volume":"1142","author":"Liu","year":"2017","journal-title":"Adv. Mater. Res."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1016\/j.matdes.2015.06.125","article-title":"Fabrication of smart coatings based on wood substrates with photoresponsive behavior and hydrophobic performance","volume":"84","author":"Hui","year":"2015","journal-title":"Mater. Design"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"9547","DOI":"10.15376\/biores.11.4.9547-9559","article-title":"Development of photochromic wood material by microcapsules","volume":"11","author":"Hu","year":"2016","journal-title":"Bioresources"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"12850","DOI":"10.1007\/s10853-018-2596-6","article-title":"High-efficiency self-repairing anticorrosion coatings with controlled assembly microcapsules","volume":"53","author":"Kong","year":"2013","journal-title":"J. Mater. Sci."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1111\/jmi.12582","article-title":"Pontamine fast scarlet 4B bifluorescence and measurements of cellulose microfibril angles","volume":"268","author":"Thomas","year":"2017","journal-title":"J. Microsc."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1016\/j.dyepig.2010.01.014","article-title":"Colorimetric properties of reversible thermochromic printing inks","volume":"86","author":"Kulcar","year":"2010","journal-title":"Dye. Pigment."}],"container-title":["Polymers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-4360\/14\/18\/3919\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:34:24Z","timestamp":1760142864000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-4360\/14\/18\/3919"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,19]]},"references-count":55,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2022,9]]}},"alternative-id":["polym14183919"],"URL":"https:\/\/doi.org\/10.3390\/polym14183919","relation":{},"ISSN":["2073-4360"],"issn-type":[{"value":"2073-4360","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,9,19]]}}}