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Thermal, mechanical, and morphological characterization of biobased thermoplastic starch from agricultural waste/polypropylene blends
- Source :
- Polymer Engineering and Science. June 1, 2014, Vol. 54 Issue 6, p1357, 9 p.
- Publication Year :
- 2014
-
Abstract
- The thermal, mechanical, and morphological properties of biobased thermoplastic starch (TPS) obtained from agricultural waste seed (AWS) and agricultural waste tuber (AWT) blended with polypropylene (PP) were investigated in this article. The grounded (pulverized) AWS and AWT were different in amylose/amylopectin ratios and contained relatively low starch content (≤ 50%). The commercial grade of TPS (CS) and native tapioca starch blended PP (NTS/PP) were also prepared for comparison. The performances of the TPS/ PP blends were dependent on the starch composition (e.g., amylose-to-amylopectin ratio), particle size, dispersion, and interfacial adhesion with matrix. The high-amylopectin starch blend (i.e., AWS/PP) was more susceptible to thermal degradation than the amylose-rich material (i.e., NTS/PP). The addition of starch to PP not only led to a stiffening effect (i.e., increase in storage modulus), but it also affected the relaxation of polymer matrix by shifting the thermal transition (i.e., glass transition temperature) to a higher temperature. POLYM.<br />INTRODUCTION Biobased product is a product containing in whole or partly made from renewable resources according to definition in ASTM D6852. ASTM D6866 is the standard test method for biobased [...]
- Subjects :
- Polypropylene -- Mechanical properties -- Thermal properties
Thermoplastics -- Mechanical properties -- Thermal properties
Thermal stresses -- Research
Materials research
Agricultural wastes -- Mechanical properties -- Thermal properties
Polymers -- Rheology
Engineering and manufacturing industries
Science and technology
Subjects
Details
- Language :
- English
- ISSN :
- 00323888
- Volume :
- 54
- Issue :
- 6
- Database :
- Gale General OneFile
- Journal :
- Polymer Engineering and Science
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.371189571
- Full Text :
- https://doi.org/10.1002/pen.23684