At present the use of natural fibers as additives in polymers has increased due to the positive results obtained by performing these bio based materials. The degradability of a polymer is affected by addition of a material obtained from a naturals sources such as lignin, since this polysaccharide gives it better thermal properties due to the origin of this material. The objective of this research work is to study the degradability of a polymer derived from petroleum, but biodegradable as is the case of Polycaprolactone (PCL), this is an aliphatic polyester with methylene sequence with a high degradability, so which, with this work, is intended to reduce its degradation time dosing with lignin. To carry out this objective in the first instance, made an extraction of the lignin contained in the fiber of the banana roots was carried out by methods of hydrolysis acidic and basic, obtaining as a result, that it contains is 13% lignin; additional to this, was carried out a proximal chemical analysis to know the best conditions for the treatment extraction of lignin; this analysis consisted in the determination of humidity, extractable compounds in organic solvent, extractables in hot water, total ash and volatile material. For the study of the degradation of the dosed lignin with PCL, was made mixtures of 5, 10, and 15% of lignin contained in PCL, later, these samples were subjected to a differential scanning analysis (DSC) to observe the behavior of the lignin in the crosslinking with the PCL. To these samples was analyzed the degradation in an oven during four weeks, where it was observed that the highest degradation had the sample dosed with 5% of lignin. These results showed that the addition of lignin increases the degradability of PCL.
|Translated title of the contribution||Study of the Degradability of Pcl (POLYCAPROLACTONE) Dosed with Lignin from Banana Fiber|
|Original language||Spanish (Ecuador)|
|Number of pages||14|
|Journal||Revista Iberoamericana de Polímeros|
|State||Published - 31 Jul 2018|
CACES Knowledge Areas
- 215A Biochemistry