Preparation and Characterization of Bio-Based PLA/PBAT and Cinnamon Essential Oil Polymer Fibers and Life-Cycle Assessment from Hydrolytic Degradation

Polymers

ZormyNacary Correa-Pacheco¹  JaimeDaniel Black-Solís²  Silvia Bautista-Baños²  Alfonso Barajas-Cervantes³  Pedro Ortega-Gudiño³  MarcosAntonio Sabino-Gutiérrez⁴  LilianaBeyalith Hurtado-Colmenares⁴  JoséJesús Benítez-Jiménez⁵ 

[1] CONACYT-Centro de Desarrollo de Productos Bióticos. Instituto Politécnico Nacional, Carretera Yautepec-Jojutla, km 6, calle CEPROBI, No. 8, San Isidro, Yautepec, Morelos 62731, Mexico;Centro de Desarrollo de Productos Bióticos. Instituto Politécnico Nacional, Carretera Yautepec-Jojutla, Km. 6, calle CEPROBI No. 8, San Isidro, Yautepec, Morelos 62731, Mexico;Departamento de Ingeniería Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Gral. Marcelino García Barragán1451, Guadalajara, Jalisco 44430, Mexico;Departamento de Química, Grupo B5IDA, Universidad Simón Bolívar, Apartado 89000, Caracas C. P. 1080-A, Venezuela;Instituto de Ciencia de Materiales de Sevilla, CSIC-Universidad de Sevilla, Avda. Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain;

关键词: bio-based fibers;    cinnamon essential oil;    differential scanning calorimetry;    mechanical properties;    hydrolytic degradation;   

DOI  :  10.3390/polym12010038

来源: DOAJ

【 摘 要 】

Nowadays, the need to reduce the dependence on fuel products and to achieve a sustainable development is of special importance due to environmental concerns. Therefore, new alternatives must be sought. In this work, extruded fibers from poly (lactic acid) (PLA) and poly (butylene adipate-co-terephthalate) (PBAT) added with cinnamon essential oil (CEO) were prepared and characterized, and the hydrolytic degradation was assessed. A two-phase system was observed with spherical particles of PBAT embedded in the PLA matrix. The thermal analysis showed partial miscibility between PLA and PBAT. Mechanically, Young’s modulus decreased and the elongation at break increased with the incorporation of PBAT and CEO into the blends. The variation in weight loss for the fibers was below 5% during the period of hydrolytic degradation studied with the most important changes at 37 °C and pH 8.50. From microscopy, the formation of cracks in the fiber surface was evidenced, especially for PLA fibers in alkaline medium at 37 °C. This study shows the importance of the variables that influence the performance of polyester-cinnamon essential oil-based fibers in agro-industrial applications for horticultural product preservation.

【 授权许可】

Unknown