Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings
This study demonstrated an effective method to enhance the dimensional stability of straw-based biocomposites with modified lignosulfonate as a binder. The ultraviolet (UV) light-curable nanosol was prepared by adding 3-(trimethoxysilyl)propyl methacrylate (MEMO) as sol–gel precursor into polyvinyl...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2024-03-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23303 |
| _version_ | 1797224530629885952 |
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| author | Yuan Yuan Xiang Sun Dong Xu Jianyu He Xuansong Wang Donghua Wu Sidan Li |
| author_facet | Yuan Yuan Xiang Sun Dong Xu Jianyu He Xuansong Wang Donghua Wu Sidan Li |
| author_sort | Yuan Yuan |
| collection | DOAJ |
| description | This study demonstrated an effective method to enhance the dimensional stability of straw-based biocomposites with modified lignosulfonate as a binder. The ultraviolet (UV) light-curable nanosol was prepared by adding 3-(trimethoxysilyl)propyl methacrylate (MEMO) as sol–gel precursor into polyvinyl alcohol (PVA) solution. The MEMO/PVA coatings were generated using 2-hydroxy-2-methyl-1-phenylpropan-1-one (Darocur 1173) as radical photo-initiator and chitosan (CS) as additive, on straw-based biocomposites via UV-curing process. The effects of the crucial steps, such as the UV-curing process, hydrolysis time, Darocur 1173 dosage, and CS dosage on the dimensional stability of straw-based biocomposites, were evaluated. The optimum preparation parameters, obtained using the Box–Behnken design, were 31.9 min hydrolysis time, 4.5% Darocur 1173 dosage, and 2.7% CS dosage. Moisture resistance of minimum TS of CS-MEMO/PVA-coated straw-based biocomposites resulted in ~23.1% reduction in dimensional stability without significant decline in the mechanical properties when compared with those without UV curing. Moreover, the glossy spherical particles underwent arrangement in a fish-scale shape with scales closely linked with each other and no agglomeration occurred in CS-MEMO/PVA hybrid film. The CS promoted the cross-linking of MEMO/PVA coating on the biocomposite surface. The resulting biocomposites can be directly applied to public humid-environment applications such as bath furniture and bathroom partitions. |
| first_indexed | 2024-04-24T13:54:35Z |
| format | Article |
| id | doaj.art-5acae9c80cab41cc8140a018669f18e5 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-04-24T13:54:35Z |
| publishDate | 2024-03-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-5acae9c80cab41cc8140a018669f18e52024-04-03T18:52:36ZengNorth Carolina State UniversityBioResources1930-21262024-03-01192274927621440Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured CoatingsYuan Yuan0Xiang Sun1Dong Xu2Jianyu He3Xuansong Wang4Donghua Wu5Sidan Li6College of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaCollege of Resources, Environment and Materials, Guangxi University, Nanning 530000, ChinaCollege of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaCollege of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaCollege of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaCollege of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaCollege of Mechanical and Resource Engineering, Wuzhou University, Wuzhou 543000, China; Wuzhou Engineering Research Center of Resource Recycling, Wuzhou 543000, ChinaThis study demonstrated an effective method to enhance the dimensional stability of straw-based biocomposites with modified lignosulfonate as a binder. The ultraviolet (UV) light-curable nanosol was prepared by adding 3-(trimethoxysilyl)propyl methacrylate (MEMO) as sol–gel precursor into polyvinyl alcohol (PVA) solution. The MEMO/PVA coatings were generated using 2-hydroxy-2-methyl-1-phenylpropan-1-one (Darocur 1173) as radical photo-initiator and chitosan (CS) as additive, on straw-based biocomposites via UV-curing process. The effects of the crucial steps, such as the UV-curing process, hydrolysis time, Darocur 1173 dosage, and CS dosage on the dimensional stability of straw-based biocomposites, were evaluated. The optimum preparation parameters, obtained using the Box–Behnken design, were 31.9 min hydrolysis time, 4.5% Darocur 1173 dosage, and 2.7% CS dosage. Moisture resistance of minimum TS of CS-MEMO/PVA-coated straw-based biocomposites resulted in ~23.1% reduction in dimensional stability without significant decline in the mechanical properties when compared with those without UV curing. Moreover, the glossy spherical particles underwent arrangement in a fish-scale shape with scales closely linked with each other and no agglomeration occurred in CS-MEMO/PVA hybrid film. The CS promoted the cross-linking of MEMO/PVA coating on the biocomposite surface. The resulting biocomposites can be directly applied to public humid-environment applications such as bath furniture and bathroom partitions.https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23303straw-based biocompositesultraviolet-curingchitosandimensional stabilitybox–behnken design |
| spellingShingle | Yuan Yuan Xiang Sun Dong Xu Jianyu He Xuansong Wang Donghua Wu Sidan Li Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings BioResources straw-based biocomposites ultraviolet-curing chitosan dimensional stability box–behnken design |
| title | Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings |
| title_full | Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings |
| title_fullStr | Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings |
| title_full_unstemmed | Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings |
| title_short | Enhanced Dimensional Stability of Straw-based Biocomposites Modified with UV Light-cured Coatings |
| title_sort | enhanced dimensional stability of straw based biocomposites modified with uv light cured coatings |
| topic | straw-based biocomposites ultraviolet-curing chitosan dimensional stability box–behnken design |
| url | https://ojs.cnr.ncsu.edu/index.php/BRJ/article/view/23303 |
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