Abstract
Abstract
The goal of this research was developing a new organic nucleating agent and investigating its influence on the non-isothermal crystallization including melt-crystallization and cold-crystallization, melting behavior and optical property of Poly(L-lactic acid) (PLLA). The results from the melt-crystallization indicated that the N, N′-bis(benzoyl) phenylmalonic acid dihydrazide (PABBH) could be used as an effective role in nucleation, and 2 wt% PABBH had the best crystallization promoting effect for PLLA. However, the increase of PABBH content made the cold-crystallization peak shift toward the higher temperature. The melting behavior of PLLA/PABBH sample depended on the crystallization time, and the double-melting peaks were ascribed to the melting-recrystallization. The introduction of PABBH seriously decreased the transmittance of PLLA resulting from an increase of crystallinity and the yellowish-brown of PABBH itself.
Reference15 articles.
1. Crystallization behavior of biodegradable poly(L-lactic acid) filled with a powerful nucleating agent-N N′-bis(benzoyl) suberic acid dihydrazide;Cai;J. Appl. Polym. Sci.,2011
2. Antimicrobial poly(lactic acid)/cellulose bionanocomposite for food packaging application: A review;Gan;Food. Packaging. Shelf.,2018
3. Biomineralized poly(L-lactic-co-glycolic acid)-tussah silk fibroin nanofiber fabric with hierarchical architecture as a scaffold for bone tissue engineering;Gao;Mat. Sci. Eng. C-Mater.,2018
4. Environment-friendly dish, has recess formed on dish surface and extending to bottom surface, and tableware unit comprising tableware piece that is deviated from base part, where base part, dish part and tableware unit are formed integrally;Wang,2009
5. Structure, performance and crystallization behavior of poly(lactic acid)/humic acid amide composites;Xu;Polym-Plast. Technol.,2018