Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad del Bío Bío
2022
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| _version_ | 1876467766348742656 |
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| author | Tawani Lorena Naide |
| author_facet | Tawani Lorena Naide |
| contents | Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings Tawani Lorena Naide Pedro Henrique Gonzalez de Cademartori Silvana Nisgoski Graciela Inés Bolzon de Muñiz Agrociencias Colorimetry wettability wood finish waterborne coating microfibrillated cellulose The wood is exposed to possible damages caused by weather, requiring the application of a finishing coat to provide extra protection. The aim of this work was to evaluate the influence of the addition of microfibrillated cellulose in waterborne varnish on the colorimetric parameters, wettability and finish characteristics of wood products. Color was evaluated with a CM-5 spectrophotometer; surface wettability was analyzed by contact angle measurement using a drop shape analysis goniometer; and abrasion, adhesion and impact tests were performed to evaluate the quality of the coating. The coating’s optical characteristics were not affected by the addition of microfibrillated cellulose. The changes in wood wettability were small, with no statistical difference between the wood treated with plain varnish and that with unbleached microfibrillated cellulose. In the analysis of the variation of the contact angle during the elapsed time, the coating containing unbleached microfibrillated cellulose presented the best results. The results of finish quality did not show numerical changes after the addition of the microfibrillated cellulose, but qualitatively the microfibrillated cellulose caused better anchoring of the coating to the specimens. Therefore, the use of microfibrillated cellulose as reinforcement in coatings has potential, but tests with different consistencies and tests of other properties are necessary. 2022 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48575019053 https://www.redalyc.org/journal/485/48575019053/ https://www.redalyc.org/journal/485/48575019053/html/ https://www.redalyc.org/journal/485/48575019053/48575019053.epub https://www.redalyc.org/journal/485/48575019053/movil 10.4067/s0718-221x2022000100453 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.24 |
| format | Artículo científico |
| id | redalyc_48575019053 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad del Bío Bío |
| spellingShingle | Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings Tawani Lorena Naide Agrociencias Colorimetry wettability wood finish waterborne coating microfibrillated cellulose Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings Tawani Lorena Naide Pedro Henrique Gonzalez de Cademartori Silvana Nisgoski Graciela Inés Bolzon de Muñiz Agrociencias Colorimetry wettability wood finish waterborne coating microfibrillated cellulose The wood is exposed to possible damages caused by weather, requiring the application of a finishing coat to provide extra protection. The aim of this work was to evaluate the influence of the addition of microfibrillated cellulose in waterborne varnish on the colorimetric parameters, wettability and finish characteristics of wood products. Color was evaluated with a CM-5 spectrophotometer; surface wettability was analyzed by contact angle measurement using a drop shape analysis goniometer; and abrasion, adhesion and impact tests were performed to evaluate the quality of the coating. The coating’s optical characteristics were not affected by the addition of microfibrillated cellulose. The changes in wood wettability were small, with no statistical difference between the wood treated with plain varnish and that with unbleached microfibrillated cellulose. In the analysis of the variation of the contact angle during the elapsed time, the coating containing unbleached microfibrillated cellulose presented the best results. The results of finish quality did not show numerical changes after the addition of the microfibrillated cellulose, but qualitatively the microfibrillated cellulose caused better anchoring of the coating to the specimens. Therefore, the use of microfibrillated cellulose as reinforcement in coatings has potential, but tests with different consistencies and tests of other properties are necessary. 2022 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48575019053 https://www.redalyc.org/journal/485/48575019053/ https://www.redalyc.org/journal/485/48575019053/html/ https://www.redalyc.org/journal/485/48575019053/48575019053.epub https://www.redalyc.org/journal/485/48575019053/movil 10.4067/s0718-221x2022000100453 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Vol.24 |
| title | Preliminary evaluation of the incorporation of cellulose nanofibers as reinforcement in waterborne wood coatings |
| topic | Agrociencias Colorimetry wettability wood finish waterborne coating microfibrillated cellulose |
| url | https://www.redalyc.org/articulo.oa?id=48575019053 https://www.redalyc.org/journal/485/48575019053/ https://www.redalyc.org/journal/485/48575019053/html/ https://www.redalyc.org/journal/485/48575019053/48575019053.epub https://www.redalyc.org/journal/485/48575019053/movil |