Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites
Composite materials; Impact strength; Mechanical properties; Polyurethanes; Scanning electron microscopy; Thermodynamic stability; Crystallization temperature; Fractured surfaces; Morphological properties; Polyurethane composites; Renewable materials; Starch composites; Thermo-mechanical; Thermomech...
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2023
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my.uniten.dspace-231552023-05-29T14:38:03Z Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites Gaaz T.S. Sulong A.B. Ansari M.N.M. Kadhum A.A.H. Al-Amiery A.A. Nassir M.H. 57057714900 14919776300 55489853600 35546574700 42060956400 56677660300 Composite materials; Impact strength; Mechanical properties; Polyurethanes; Scanning electron microscopy; Thermodynamic stability; Crystallization temperature; Fractured surfaces; Morphological properties; Polyurethane composites; Renewable materials; Starch composites; Thermo-mechanical; Thermomechanical properties; Starch The advancements in material science and technology have made polyurethane (PU) one of the most important renewable polymers. Enhancing the physio-chemical and mechanical properties of PU has become the theme of this and many other studies. One of these enhancements was carried out by adding starch to PU to form new renewable materials called polyurethane-starch composites (PUS). In this study, PUS composites are prepared by adding starch at 0.5, 1.0, 1.5, and 2.0 wt.% to a PU matrix. The mechanical, thermal, and morphological properties of PU and PUS composites were investigated. Scanning electron microscope (SEM) images of PU and PUS fractured surfaces show cracks and agglomeration in PUS at 1.5 wt.% starch. The thermo-mechanical properties of the PUS composites were improved as starch content increased to 1.5 wt.% and declined by more starch loading. Despite this reduction, the mechanical properties were still better than that of neat PU. The mechanical strength increased as starch content increased to 1.5 wt.%. The tensile, flexural, and impact strengths of the PUS composites were found to be 9.62 MPa, 126.04 MPa, and 12.87 � 10-3 J/mm2, respectively, at 1.5 wt.% starch. Thermal studies showed that the thermal stability and crystallization temperature of the PUS composites increased compared to that of PU. The loss modulus curves showed that neat PU crystallizes at 124 �C and at 127 �C for PUS-0.5 wt.% and rises with increasing loading from 0.5 to 2 wt.%. � 2017 by the authors. Final 2023-05-29T06:38:03Z 2023-05-29T06:38:03Z 2017 Article 10.3390/ma10070777 2-s2.0-85024131969 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85024131969&doi=10.3390%2fma10070777&partnerID=40&md5=5b13149291950db9f3923754e8ac4c73 https://irepository.uniten.edu.my/handle/123456789/23155 10 7 777 All Open Access, Gold, Green MDPI AG Scopus |
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Composite materials; Impact strength; Mechanical properties; Polyurethanes; Scanning electron microscopy; Thermodynamic stability; Crystallization temperature; Fractured surfaces; Morphological properties; Polyurethane composites; Renewable materials; Starch composites; Thermo-mechanical; Thermomechanical properties; Starch |
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57057714900 |
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57057714900 Gaaz T.S. Sulong A.B. Ansari M.N.M. Kadhum A.A.H. Al-Amiery A.A. Nassir M.H. |
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Article |
| author |
Gaaz T.S. Sulong A.B. Ansari M.N.M. Kadhum A.A.H. Al-Amiery A.A. Nassir M.H. |
| spellingShingle |
Gaaz T.S. Sulong A.B. Ansari M.N.M. Kadhum A.A.H. Al-Amiery A.A. Nassir M.H. Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| author_sort |
Gaaz T.S. |
| title |
Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| title_short |
Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| title_full |
Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| title_fullStr |
Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| title_full_unstemmed |
Effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| title_sort |
effect of starch loading on the thermo-mechanical and morphological properties of polyurethane composites |
| publisher |
MDPI AG |
| publishDate |
2023 |
| _version_ |
1806428290300248064 |
| score |
13.214268 |