Título:	Processing and Properties of PCL/Cotton Linter Compounds.
Autoria:	BEZERRA, E. B. FRANÇA, D. C. MORAIS, D. D. de S. M. ROSA, M. de F. MORAIS, J. P. S. ARAÚJO, E. M. WELLEN, R. M. R.
Afiliação:	ELEIEBER BARROS BEEZERRA, UFCG; DANYELLE CAMPOS FRANÇA, UFCG; DAYANNE DINIZ de SOUZA MORAIS, UFCG; MORSYLEIDE DE FREITAS ROSA, CNPAT; JOAO PAULO SARAIVA MORAIS, CNPA; EDCLEIDE MARIA ARAÚJO, UFCG; RENATE MARIA RAMOS WELLEN, UFPB.
Ano de publicação:	2017
Referência:	Materials Research, v. 20, n. 2, p. 317-325, 2017.
Conteúdo:	Biodegradable compounds of poly(?-949;-caprolactone) (PCL)/ cotton linter were melting mixed with filling content ranging from 1% to 5% w/w. Cotton linter is an important byproduct of textile industry; in this work it was used in raw state and after acid hydrolysis. According to the results of torque rheometry no decaying of viscosity took place during compounding, evidencing absence of breaking down in molecular weight. The thermal stability increased by 20% as observed in HDT for PCL/cotton nanolinter compounds. Adding cotton linter to PCL didn't change its crystalline character as showed by XRD; however an increase in degree of crystallinity was observed by means of DSC. From mechanical tests in tension was observed an increase in ductility of PCL, and from mechanical tests in flexion an increase in elastic modulus upon addition of cotton linter, whereas impact strength presented lower values for PCL/cotton linter and PCL/cotton nanolinter compounds. SEM images showed that PCL presents plastic fracture and cotton linter has an interlacing fibril structure with high L/D ratio, which are in agreement with matrix/fibril morphology observed for PCL/cotton linter compounds. PCL/cotton linter compounds made in this work cost less than neat PCL matrix and presented improved properties making feasible its commercial use.
Thesagro:	Algodão
NAL Thesaurus:	Cotton
Digital Object Identifier:	10.1590/1980-5373-MR-2016-0084
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPA)