Deep focusing on the role of microstructures in shape memory properties of polymer composites: A critical review. (August 2019)

• Record Type: Journal Article
• Authors: Panahi-Sarmad, Mahyar; Abrisham, Mahbod; Noroozi, Mina; Amirkiai, Arian; Dehghan, Parham; Goodarzi, Vahabodin; Zahiri, Beniamin
• Is Part Of: European polymer journal. Volume 117(2019)
• Page Start: 280
• Page End: 303
• Publication Date: 2019-08
• Subjects: Shape memory -- Polymer composite -- Microstructure -- Carbon- & silicate-based fillers; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; Polymerization; Polymers; Periodicals; Electronic journals; 547.705
• DOI: 10.1016/j.eurpolymj.2019.05.013
• Languages: English
• ISSNs: 0014-3057

Abstract

Graphical abstract: Highlights: The promising applications of shape memory polymer composites (SMPCs) are highly dependent on the efficacy of filler properties and composite microstructure. Presenting a comprehensive summary of recent progress in the development of SMPCs based on silica- and carbon-based as well as hybrid fillers. The shape memory programming methods and assembly strategies of SMPCs overviewed. Engineering interfacial properties between filler-polymer and tailoring filler content can achieve proper thermomechanical (or electromechanical for carbonic filler) behavior of shape memory actuator. A key challenge is to increase the performance of SMPCs with enhancing shape fixity & recovery ratio, and also precisely controlling the rate of recovery during actuation properties. Abstract: In the last two decades, shape memory polymers (SMPs) find promising applications in various fields such as micro-actuators, medicine, basic sciences, anti-counterfeit technology, sensor, and automobile. This class of active polymers can switch between an original shape and one or more temporary shapes. Although SMPs have been extensively admitted as smart materials, due to low density, excellent biocompatibility, and facile processing, but still exposes numerous weaknesses and limitations based on engineering aspects, analogous: multiple approaches to improvement of driving methods, reinforcement of mechanical properties, the creation of specific deformations and the formation of multifunctional materials. For this purpose, SMP composites (SMPCs) is introduced to eliminating the mentioned disadvantages. This review is intensely focused on the most recent research on microstructure-property of SMPCs filled by different carbon and silicate-based nano/micro-particles as well as hybrid particles. Silicate fillers in SMPCs divided base on natural shapes (1, 2 and 0 D) and the necessary information for tailoring an appropriate SMPCs is deliberated. On the other hand, the embedded carbonic fillers (carbon black, CNT and graphene) in polymeric matrixes for improving shape memory behavior are separately deliberated. In addition, the current review offers a comprehensive discussion on micro- and macro-morphology of polymer composites in order to design proper shape memory properties. A systematic approach has been undertaken to highlight the advancements and challenges of SMPCs and the critical research areas that need immediate attention.