{"title":"以富含纤维素的黄酒酒糟为可持续成核剂的3D打印聚乳酸复合细丝的结晶度和生物降解性的改善","authors":"Qiuyue Liang, Ying Xu, Yebo Lu, Peng Liu, Yi Jiang, Yongbo Yao, Junlu Sheng","doi":"10.1007/s10570-025-06675-9","DOIUrl":null,"url":null,"abstract":"<div><p>Polylactic acid (PLA)/biomass polymer composite filaments are environmentally friendly 3D printing supplies with the features of natural materials. This study prepared cellulose-enriched Huangjiu (Chinese rice wine) distillers’ grains (CHG) fillers with 46.2 wt% cellulose by dissolving starch and protein with NaOH solution. Then, PLA composite filaments containing 3–9 wt% CHG fillers were prepared through melt blending and extrusion process. The SEM images of the cross-section of the filaments showed a good dispersion of CHG in composites. XRD analysis revealed that the crystallinity of pure PLA filaments was 22.2%, whereas that of the PLA/CHG composite filaments with 6 wt% CHG reached 70.0%. This enhancement is attributed to CHG acting as a nucleating agent during the crystallization process of PLA. After that, PLA/CHG composite test specimens were fabricated using a 3D printer. It was found that the tensile strengths of 3D printed PLA/CHG composites were 37.9–47.3 MPa, which were maintained at a comparable level to that of PLA sample. Furthermore, the biodegradation of 3D printed PLA/CHG composites were tested in real soil environment. After being buried in soil for 49 days, the mass loss rate was 0.6% for the 3D printed composite with 9 wt% CHG, while this value of the 3D printed PLA was only 0.1%, as distiller’s grains provide essential nutrients such as carbon and nitrogen source required for the microbial degradation of polylactic acid.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":511,"journal":{"name":"Cellulose","volume":"32 12","pages":"7415 - 7428"},"PeriodicalIF":4.8000,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improved crystallinity and biodegradability of 3D printable polylactic acid composite filaments filled with cellulose-enriched Huangjiu (Chinese rice wine) distillers’ grains as sustainable nucleating agents\",\"authors\":\"Qiuyue Liang, Ying Xu, Yebo Lu, Peng Liu, Yi Jiang, Yongbo Yao, Junlu Sheng\",\"doi\":\"10.1007/s10570-025-06675-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polylactic acid (PLA)/biomass polymer composite filaments are environmentally friendly 3D printing supplies with the features of natural materials. This study prepared cellulose-enriched Huangjiu (Chinese rice wine) distillers’ grains (CHG) fillers with 46.2 wt% cellulose by dissolving starch and protein with NaOH solution. Then, PLA composite filaments containing 3–9 wt% CHG fillers were prepared through melt blending and extrusion process. The SEM images of the cross-section of the filaments showed a good dispersion of CHG in composites. XRD analysis revealed that the crystallinity of pure PLA filaments was 22.2%, whereas that of the PLA/CHG composite filaments with 6 wt% CHG reached 70.0%. This enhancement is attributed to CHG acting as a nucleating agent during the crystallization process of PLA. After that, PLA/CHG composite test specimens were fabricated using a 3D printer. It was found that the tensile strengths of 3D printed PLA/CHG composites were 37.9–47.3 MPa, which were maintained at a comparable level to that of PLA sample. Furthermore, the biodegradation of 3D printed PLA/CHG composites were tested in real soil environment. After being buried in soil for 49 days, the mass loss rate was 0.6% for the 3D printed composite with 9 wt% CHG, while this value of the 3D printed PLA was only 0.1%, as distiller’s grains provide essential nutrients such as carbon and nitrogen source required for the microbial degradation of polylactic acid.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":511,\"journal\":{\"name\":\"Cellulose\",\"volume\":\"32 12\",\"pages\":\"7415 - 7428\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cellulose\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10570-025-06675-9\",\"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://link.springer.com/article/10.1007/s10570-025-06675-9","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}
Improved crystallinity and biodegradability of 3D printable polylactic acid composite filaments filled with cellulose-enriched Huangjiu (Chinese rice wine) distillers’ grains as sustainable nucleating agents
Polylactic acid (PLA)/biomass polymer composite filaments are environmentally friendly 3D printing supplies with the features of natural materials. This study prepared cellulose-enriched Huangjiu (Chinese rice wine) distillers’ grains (CHG) fillers with 46.2 wt% cellulose by dissolving starch and protein with NaOH solution. Then, PLA composite filaments containing 3–9 wt% CHG fillers were prepared through melt blending and extrusion process. The SEM images of the cross-section of the filaments showed a good dispersion of CHG in composites. XRD analysis revealed that the crystallinity of pure PLA filaments was 22.2%, whereas that of the PLA/CHG composite filaments with 6 wt% CHG reached 70.0%. This enhancement is attributed to CHG acting as a nucleating agent during the crystallization process of PLA. After that, PLA/CHG composite test specimens were fabricated using a 3D printer. It was found that the tensile strengths of 3D printed PLA/CHG composites were 37.9–47.3 MPa, which were maintained at a comparable level to that of PLA sample. Furthermore, the biodegradation of 3D printed PLA/CHG composites were tested in real soil environment. After being buried in soil for 49 days, the mass loss rate was 0.6% for the 3D printed composite with 9 wt% CHG, while this value of the 3D printed PLA was only 0.1%, as distiller’s grains provide essential nutrients such as carbon and nitrogen source required for the microbial degradation of polylactic acid.
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.