Polycaprolactone nanocomposite reinforced by bioresource starch-based nanoparticles

Junjun Kong; Yancun Yu; XiaoPeng Pei; Changyu Han; Ying Tan; Lisong Dong

doi:10.1016/j.ijbiomac.2017.05.019

Polycaprolactone nanocomposite reinforced by bioresource starch-based nanoparticles

Int J Biol Macromol. 2017 Sep:102:1304-1311. doi: 10.1016/j.ijbiomac.2017.05.019. Epub 2017 May 8.

Authors

Junjun Kong¹, Yancun Yu², XiaoPeng Pei¹, Changyu Han³, Ying Tan⁴, Lisong Dong²

Affiliations

¹ Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, China; University of Chinese Academy of Science, Beijing, 10080, China.
² Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, China.
³ Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, China. Electronic address: cyhan@ciac.ac.cn.
⁴ Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, China. Electronic address: tanying@ciac.ac.cn.

PMID: 28495623
DOI: 10.1016/j.ijbiomac.2017.05.019

Abstract

Biodegradable polymer nanocomposites with bioresource starch-based nanoparticles (SNPs) as reinforcing fillers for polycaprolactone (PCL) were prepared by melt blending. Scanning electron microscopy observation revealed that SNPs as spherical particles were evenly dispersed in the PCL matrix without any aggregation even with the content of SNPs increasing to 10wt% in the nanocomposite. Consequently, the rheological performances of PCL have been improved efficaciously after incorporation with SNPs as well as mechanical properties, especially with a percolation network structure of SNPs in the PCL matrix formed. In addition, the enzymatic hydrolysis experiments showed a more interesting behavior that the hydrolysis rates had been accelerated apparently in the nanocomposites than that in the neat PCL as observed. Such high performance nanocomposites may have great potential in expanding the utilization of starch from sustainable resources and the practical application of PCL-based biodegradable materials.

Keywords: Nanocomposites; Reinforcement; Starch-based nanoparticles (SNPs).

MeSH terms

Nanocomposites / chemistry*
Nanoparticles / chemistry*
Polyesters / chemistry*
Rheology
Starch / chemistry*
Temperature
Tensile Strength

Substances

Polyesters
polycaprolactone
Starch