{"title":"开发载入 TiO2 的亚甲基双苯并三唑四甲基丁基苯酚接枝木质素亚微球,用于防晒应用","authors":"","doi":"10.1016/j.jobab.2024.09.003","DOIUrl":null,"url":null,"abstract":"<div><div>Lignin serves as a promising Ultraviolet (UV) absorber within sunscreen industry. However, the commercial development of lignin-containing sunscreens faces challenges due to their low sun protection factor (SPF) and dark color in cosmetics industry. In this study, dual modifications on the chemical and physical structures of lignin were conducted to address these challenges. Initially, methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT) was grafted onto alkali lignin (AL) through an atom transfer radical polymerization reaction, resulting in a polymer of AL-graft-MBBT<sub>3</sub> (AL-g-MBBT<sub>3</sub>). The sunscreen prepared with 10% AL-g-MBBT<sub>3</sub> displays outstanding sun protection performance with a SPF of 42.93 and a light color with a color difference value (Δ<em>E</em>) of 45.6, in contrast to 10% AL with a SPF of 4.74 and a Δ<em>E</em> value of 49.5. Subsequently, AL-g-MBBT<sub>3</sub> was transformed into normal submicron spheres (AL-g-MBBT<sub>3</sub> N) and TiO<sub>2</sub>-loading submicron spheres (AL-g-MBBT<sub>3</sub>/TiO<sub>2</sub>). The sun protection performances of 10% AL-g-MBBT<sub>3</sub> N@C and AL-g-MBBT<sub>3</sub>/TiO<sub>2</sub>@C sunscreens obviously surpass that of AL-g-MBBT<sub>3</sub>@C sunscreen, achieving SPFs of 60.38 and 66.20, respectively. Additionally, there is a considerable improvement in the color of these sunscreens, with Δ<em>E</em> values of 41.8 and 36.3, respectively. These results provide valuable insights into exploring lignin's high-value applications in sunscreen.</div></div>","PeriodicalId":52344,"journal":{"name":"Journal of Bioresources and Bioproducts","volume":null,"pages":null},"PeriodicalIF":20.2000,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development of Methylene Bis-Benzotriazolyl Tetramethylbutylphenol-grafted lignin sub-microspheres loaded with TiO2 for sunscreen applications\",\"authors\":\"\",\"doi\":\"10.1016/j.jobab.2024.09.003\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Lignin serves as a promising Ultraviolet (UV) absorber within sunscreen industry. However, the commercial development of lignin-containing sunscreens faces challenges due to their low sun protection factor (SPF) and dark color in cosmetics industry. In this study, dual modifications on the chemical and physical structures of lignin were conducted to address these challenges. Initially, methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT) was grafted onto alkali lignin (AL) through an atom transfer radical polymerization reaction, resulting in a polymer of AL-graft-MBBT<sub>3</sub> (AL-g-MBBT<sub>3</sub>). The sunscreen prepared with 10% AL-g-MBBT<sub>3</sub> displays outstanding sun protection performance with a SPF of 42.93 and a light color with a color difference value (Δ<em>E</em>) of 45.6, in contrast to 10% AL with a SPF of 4.74 and a Δ<em>E</em> value of 49.5. Subsequently, AL-g-MBBT<sub>3</sub> was transformed into normal submicron spheres (AL-g-MBBT<sub>3</sub> N) and TiO<sub>2</sub>-loading submicron spheres (AL-g-MBBT<sub>3</sub>/TiO<sub>2</sub>). The sun protection performances of 10% AL-g-MBBT<sub>3</sub> N@C and AL-g-MBBT<sub>3</sub>/TiO<sub>2</sub>@C sunscreens obviously surpass that of AL-g-MBBT<sub>3</sub>@C sunscreen, achieving SPFs of 60.38 and 66.20, respectively. Additionally, there is a considerable improvement in the color of these sunscreens, with Δ<em>E</em> values of 41.8 and 36.3, respectively. These results provide valuable insights into exploring lignin's high-value applications in sunscreen.</div></div>\",\"PeriodicalId\":52344,\"journal\":{\"name\":\"Journal of Bioresources and Bioproducts\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":20.2000,\"publicationDate\":\"2024-09-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Bioresources and Bioproducts\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2369969824000574\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Bioresources and Bioproducts","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2369969824000574","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Development of Methylene Bis-Benzotriazolyl Tetramethylbutylphenol-grafted lignin sub-microspheres loaded with TiO2 for sunscreen applications
Lignin serves as a promising Ultraviolet (UV) absorber within sunscreen industry. However, the commercial development of lignin-containing sunscreens faces challenges due to their low sun protection factor (SPF) and dark color in cosmetics industry. In this study, dual modifications on the chemical and physical structures of lignin were conducted to address these challenges. Initially, methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT) was grafted onto alkali lignin (AL) through an atom transfer radical polymerization reaction, resulting in a polymer of AL-graft-MBBT3 (AL-g-MBBT3). The sunscreen prepared with 10% AL-g-MBBT3 displays outstanding sun protection performance with a SPF of 42.93 and a light color with a color difference value (ΔE) of 45.6, in contrast to 10% AL with a SPF of 4.74 and a ΔE value of 49.5. Subsequently, AL-g-MBBT3 was transformed into normal submicron spheres (AL-g-MBBT3 N) and TiO2-loading submicron spheres (AL-g-MBBT3/TiO2). The sun protection performances of 10% AL-g-MBBT3 N@C and AL-g-MBBT3/TiO2@C sunscreens obviously surpass that of AL-g-MBBT3@C sunscreen, achieving SPFs of 60.38 and 66.20, respectively. Additionally, there is a considerable improvement in the color of these sunscreens, with ΔE values of 41.8 and 36.3, respectively. These results provide valuable insights into exploring lignin's high-value applications in sunscreen.