2,3-Dialdehit Selüloz/Polilaktik Asit Biyobozunur Blendlerinin Hazırlanması ve Karakterizasyonu

Abstract

Son yıllarda çevreyi korumak için doğal olarak türetilmiş sentetik malzemelere olan talep artmıştır. Selülozik polimerler doğada yenilenebilir, biyolojik olarak parçalanabilir, çevre dostudur ve yüksek mukavemet ve sertliğe sahiptirler. Ayrıca son yıllarda araştırmalar petrol bazlı polimerler yerine polilaktik asit (PLA) kullanımını artırmıştır. Bu çalışmada, biyolojik olarak parçalanabilen dialdehit selüloz (DAC) / polilaktik asit (PLA) karışımları hazırlandı. DAC, mikrokristalin selülozdan peroksit oksidasyonu ile elde edildi. İlk olarak DAC, PLA ile harmanlandı. DAC hidrofilik özelliklere sahip olmasına rağmen, PLA'nın hidrofobik özelliklere sahip olduğu bilinmektedir. Bu nedenle, PLA ve DAC arasındaki uyumluluğu artırmak için polietilen glikol (PEG) eklendi. Harmanlar, kızılötesi spektroskopi ve termal analiz (TGA ve DSC) teknikleriyle karakterize edildi. Ayrıca elde edilen polimer karışımlarının SEM görüntüleri yorumlandı.

Keywords

• Blend polimerler
• dialdehit selüloz
• polilaktik asit

Preparation and Characterization of 2,3-Dialdehyde Cellulose/Polylactic Acid Biodegradable Blends

Abstract

In recent years, the demand for naturally derived synthetic materials to protect the environment has increased. Cellulosic polymers are renewable in nature, biodegradable, eco-friendly, and they possess high strength and stiffness. In addition, in recent years, research has increased the use of polylactic acid (PLA) instead of petroleum-based polymers. In this study, biodegradable dialdehyde cellulose (DAC)/polylactic acid (PLA) blends were prepared. DAC was prepared by peroxide oxidation from microcrystalline cellulose. Firstly, DAC was blended with PLA. Although DAC has hydrophilic properties, PLA is known to have hydrophobic properties. Therefore, polyethylene glycol (PEG) was added to increase compatibility between PLA and DAC. The blends were characterized by infrared spectroscopy and thermal analysis (TGA and DSC) techniques. Besides, SEM images of the polymer blends obtained were interpreted.

Keywords

• Blend polymers
• dialdehyde cellulose
• polylactic acid

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