Improved mechanical and thermal properties of polypropylene blends based on diethanolamine-plasticized corn starch via in situ reactive compatibilization

Liu, Lina and Yu, Youming and Song, Ping'An ORCID: (2013) Improved mechanical and thermal properties of polypropylene blends based on diethanolamine-plasticized corn starch via in situ reactive compatibilization. Industrial and Engineering Chemistry Research, 52 (46). pp. 16232-16238. ISSN 0888-5885


Starch-based polymer blends are able to alleviate the environmental concerns. However, they usually suffer poor mechanical properties. Here, we first prepared plasticized starch using diethanolamine as a reactive plasticizer and then fabricated polypropylene (PP)/starch blends using maleic anhydride-grafted PP (MAPP) as the compatibilizer. It is found that the size of the starch domains gradually reduced with increasing MAPP loading, indicating significantly improved interfacial compatibility. Adding 15 wt % MAPP can basically retain the tensile strength and considerably enhance Young's modulus, the bending strength, and the modulus of polymer blends relative to PP and its blends without compatibilization. Additionally, the glass transition temperature of PP is increased by 4.9 C for the PP blend with 30 wt % MAPP. These largely enhanced mechanical properties are mainly attributed to improved interfacial adhesion. Our work provides a facile, effective strategy for reducing the environmental impact of the use of nonbiodegradable plastics.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 24 May 2017 07:27
Last Modified: 24 Nov 2021 00:33
Uncontrolled Keywords: Environmental concerns; Interfacial adhesions; Interfacial compatibility; Mechanical and thermal properties; Nonbiodegradable plastics; Reactive compatibilization; Reactive plasticizers; Starch-based polymers; Materials Science; Organic Polymers; Polymers and Polymer Science; Organic Compounds; Chemical Agents and Basic Industrial Chemicals; Naval Vessels; Environmental Impact and Protection; Strength of Building Materials; Test Equipment and Methods; Strength of Building Materials; Mechanical Properties;
Fields of Research (2008): 03 Chemical Sciences > 0399 Other Chemical Sciences > 039903 Industrial Chemistry
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3499 Other chemical sciences > 349999 Other chemical sciences not elsewhere classified
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
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