Investigation of Properties of Microcrystalline Cellulose and Apple Peel Incorporated Polylactic Acid Based Films

Year 2023, Volume: 11 Issue: 1, 180 - 190, 01.03.2023

Pınar Terzioğlu , Kemal Can Tohumcu

https://doi.org/10.36306/konjes.1178923

Abstract

Studies on the development of PLA-based biocomposite films have gained momentum in recent years. In this study, apple peel (%0,5 w/w) and/or microcrystalline cellulose (%0,5 w/w) loaded polylactic acid based films were produced via solvent casting method. The effects of using the additives individually and together on the structural, mechanical and optical properties of the films were characterized by using FT-IR spectrophotometer, mechanical tester, thermogravimetric analyzer (TGA) and UV-3600 spectrophotometer, respectively. Additives showed good dispersion in the polymer matrix. The addition of additives increased the tensile strength and the flexibility of the neat PLA films, while slightly decreased the transparency. It was determined that the film with the highest tensile strength (41.36 ± 0.7 MPa) was the apple peel loaded PLA film. All the films had good thermal stability. When the apple peel and/or microcrystalline cellulose loaded films were compared with the pure PLA film, it was determined that there was no change on thermal degradation behavior of the films. The successful production of PLA biocomposite films indicated that they have potential to be used as environmental-friendly packaging materials.

Keywords

Agricultural Waste, Microcrystalline Cellulose, Polylactic Acid, Polymer Composite

MİKROKRİSTALİN SELÜLOZ VE ELMA KABUĞU KATKILI POLİLAKTİK ASİT ESASLI FİLMLERİN ÖZELLİKLERİNİN İNCELENMESİ

Abstract

Bu çalışmada çözelti döküm yöntemi ile elma kabuğu ve/veya mikrokristalin selüloz katkılı polilaktik asit esaslı filmler üretildi. Filmlerin yapısal, mekanik ve optik özellikleri karakterize edildi. Katkı maddelerinin eklenmesi, saf PLA filmlerin çekme dayanımı ve esnekliğini arttırırken, şeffaflığını biraz azalttı. PLA biyokompozit filmlerinin başarılı üretimi, çevre dostu ambalaj malzemeleri olarak kullanılma potansiyeline sahip olduklarını gösterdi.

Keywords

Polilaktik asit, Mikrokristalin selüloz, Polimer kompozit, Tarımsal atık

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