J. J. Gazquez-Navarro, D. Garcia-Sanoguera, R. Balart, D. Garcia-Garcia, J. Gomez-Caturla
{"title":"将聚山梨醇酯类非离子表面活性剂作为增塑剂用于高柔韧性聚乳酸配方的新用途","authors":"J. J. Gazquez-Navarro, D. Garcia-Sanoguera, R. Balart, D. Garcia-Garcia, J. Gomez-Caturla","doi":"10.1007/s10924-024-03396-1","DOIUrl":null,"url":null,"abstract":"<p>Polysorbates are non-ionic amphiphilic organic compounds, widely used as surfactants. They have a molecular weight in the 1200–1400 g mol<sup>−1</sup> range, so they are on the borderline between monomeric and polymeric plasticizers. Therefore, they can potentially provide the benefits of both plasticizer types. In this work, polyethylene glycol sorbitan monolaurate (Tween<sup>®</sup> 20), and polyethylene glycol monooleate (Tween<sup>®</sup> 80) are proposed as environmentally friendly plasticizers for PLA with enhanced ductile properties. The addition of 20 wt% of polysorbates into a PLA matrix, leads to a noticeable increase in elongation at break, from 4.0% (neat PLA) up to values around 180%. The plasticization efficiency was assessed by the decrease in the glass transition temperature (<i>T</i><sub><i>g</i></sub>), from 61.0 ºC (neat PLA) down to such los values of 29.5 ºC, and 36.6 ºC, for plasticized PLA formulations with 30 wt% Tween<sup>®</sup> 20, and 30 wt% Tween<sup>®</sup> 80, respectively. Moreover, due to the high molecular weight of polysorbates, they are not highly volatile, which allows processing PLA by conventional extrusion and injection molding without plasticizer volatilization. This works widens the industrial applications of polysorbates, as cost-effective, highly efficient and environmentally friendly plasticizers for PLA with enhanced toughness.</p>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":null,"pages":null},"PeriodicalIF":4.7000,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A New Use of Polysorbate-Type Nonionic Surfactants as Plasticizers for Highly Flexible Poly(lactide) Formulations\",\"authors\":\"J. J. Gazquez-Navarro, D. Garcia-Sanoguera, R. Balart, D. Garcia-Garcia, J. Gomez-Caturla\",\"doi\":\"10.1007/s10924-024-03396-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Polysorbates are non-ionic amphiphilic organic compounds, widely used as surfactants. They have a molecular weight in the 1200–1400 g mol<sup>−1</sup> range, so they are on the borderline between monomeric and polymeric plasticizers. Therefore, they can potentially provide the benefits of both plasticizer types. In this work, polyethylene glycol sorbitan monolaurate (Tween<sup>®</sup> 20), and polyethylene glycol monooleate (Tween<sup>®</sup> 80) are proposed as environmentally friendly plasticizers for PLA with enhanced ductile properties. The addition of 20 wt% of polysorbates into a PLA matrix, leads to a noticeable increase in elongation at break, from 4.0% (neat PLA) up to values around 180%. The plasticization efficiency was assessed by the decrease in the glass transition temperature (<i>T</i><sub><i>g</i></sub>), from 61.0 ºC (neat PLA) down to such los values of 29.5 ºC, and 36.6 ºC, for plasticized PLA formulations with 30 wt% Tween<sup>®</sup> 20, and 30 wt% Tween<sup>®</sup> 80, respectively. Moreover, due to the high molecular weight of polysorbates, they are not highly volatile, which allows processing PLA by conventional extrusion and injection molding without plasticizer volatilization. This works widens the industrial applications of polysorbates, as cost-effective, highly efficient and environmentally friendly plasticizers for PLA with enhanced toughness.</p>\",\"PeriodicalId\":659,\"journal\":{\"name\":\"Journal of Polymers and the Environment\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-09-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Polymers and the Environment\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s10924-024-03396-1\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Polymers and the Environment","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10924-024-03396-1","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
A New Use of Polysorbate-Type Nonionic Surfactants as Plasticizers for Highly Flexible Poly(lactide) Formulations
Polysorbates are non-ionic amphiphilic organic compounds, widely used as surfactants. They have a molecular weight in the 1200–1400 g mol−1 range, so they are on the borderline between monomeric and polymeric plasticizers. Therefore, they can potentially provide the benefits of both plasticizer types. In this work, polyethylene glycol sorbitan monolaurate (Tween® 20), and polyethylene glycol monooleate (Tween® 80) are proposed as environmentally friendly plasticizers for PLA with enhanced ductile properties. The addition of 20 wt% of polysorbates into a PLA matrix, leads to a noticeable increase in elongation at break, from 4.0% (neat PLA) up to values around 180%. The plasticization efficiency was assessed by the decrease in the glass transition temperature (Tg), from 61.0 ºC (neat PLA) down to such los values of 29.5 ºC, and 36.6 ºC, for plasticized PLA formulations with 30 wt% Tween® 20, and 30 wt% Tween® 80, respectively. Moreover, due to the high molecular weight of polysorbates, they are not highly volatile, which allows processing PLA by conventional extrusion and injection molding without plasticizer volatilization. This works widens the industrial applications of polysorbates, as cost-effective, highly efficient and environmentally friendly plasticizers for PLA with enhanced toughness.
期刊介绍:
The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.