Jung-soo Han, Soo-jin Kwon, Sang Yun Kim, Kyudeok Oh
{"title":"甲壳素/碳酸钙复合微颗粒及其对聚乳酸复合薄膜的影响","authors":"Jung-soo Han, Soo-jin Kwon, Sang Yun Kim, Kyudeok Oh","doi":"10.1007/s10570-024-05967-w","DOIUrl":null,"url":null,"abstract":"<p>Natural chitin/CaCO<sub>3</sub> (ChCC) complex derived from crab shell was modified and used to fabricate an organic/inorganic complex filler to enhance the optical and mechanical properties of polylactic acid (PLA) biocomposite. Crab shell was treated with NaOH to remove proteins and pulverized to produce ChCC microparticles having flake-like shape. The presence of CaCO<sub>3</sub> in ChCC enhanced the hydrophobicity of the microparticles after treatment with fatty acids. The ChCC-filled PLA composite films prepared via melt extrusion displayed good optical properties without harsh discoloration (ΔE of 0.9%). In contrast, the film filled only with chitin showed high ΔE of 15% at same filler content, which is not commonly observed in biopolymer-filled biocomposites. Also, the ChCC-filled film exhibited higher mechanical properties, with an 8% increase in tensile strength compared to PLA, while the chitin-filled film showed a decreased tensile strength of 6% than PLA, which was attributed to the improved compatibility between the hydrophobic ChCC and the PLA matrix. The inexpensive preparation of ChCC and its application as a biocomposite filler is an attractive use of crab shell waste.</p>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Chitin/calcium carbonate complex microparticles and their effects on polylactic acid composite films\",\"authors\":\"Jung-soo Han, Soo-jin Kwon, Sang Yun Kim, Kyudeok Oh\",\"doi\":\"10.1007/s10570-024-05967-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Natural chitin/CaCO<sub>3</sub> (ChCC) complex derived from crab shell was modified and used to fabricate an organic/inorganic complex filler to enhance the optical and mechanical properties of polylactic acid (PLA) biocomposite. Crab shell was treated with NaOH to remove proteins and pulverized to produce ChCC microparticles having flake-like shape. The presence of CaCO<sub>3</sub> in ChCC enhanced the hydrophobicity of the microparticles after treatment with fatty acids. The ChCC-filled PLA composite films prepared via melt extrusion displayed good optical properties without harsh discoloration (ΔE of 0.9%). In contrast, the film filled only with chitin showed high ΔE of 15% at same filler content, which is not commonly observed in biopolymer-filled biocomposites. Also, the ChCC-filled film exhibited higher mechanical properties, with an 8% increase in tensile strength compared to PLA, while the chitin-filled film showed a decreased tensile strength of 6% than PLA, which was attributed to the improved compatibility between the hydrophobic ChCC and the PLA matrix. The inexpensive preparation of ChCC and its application as a biocomposite filler is an attractive use of crab shell waste.</p>\",\"PeriodicalId\":511,\"journal\":{\"name\":\"Cellulose\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2024-06-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cellulose\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s10570-024-05967-w\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"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":"Cellulose","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s10570-024-05967-w","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}
Chitin/calcium carbonate complex microparticles and their effects on polylactic acid composite films
Natural chitin/CaCO3 (ChCC) complex derived from crab shell was modified and used to fabricate an organic/inorganic complex filler to enhance the optical and mechanical properties of polylactic acid (PLA) biocomposite. Crab shell was treated with NaOH to remove proteins and pulverized to produce ChCC microparticles having flake-like shape. The presence of CaCO3 in ChCC enhanced the hydrophobicity of the microparticles after treatment with fatty acids. The ChCC-filled PLA composite films prepared via melt extrusion displayed good optical properties without harsh discoloration (ΔE of 0.9%). In contrast, the film filled only with chitin showed high ΔE of 15% at same filler content, which is not commonly observed in biopolymer-filled biocomposites. Also, the ChCC-filled film exhibited higher mechanical properties, with an 8% increase in tensile strength compared to PLA, while the chitin-filled film showed a decreased tensile strength of 6% than PLA, which was attributed to the improved compatibility between the hydrophobic ChCC and the PLA matrix. The inexpensive preparation of ChCC and its application as a biocomposite filler is an attractive use of crab shell waste.
期刊介绍:
Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.