Multifunctional laser-induced graphene enabled polymeric composites. (June 2021)

• Record Type: Journal Article
• Authors: Liu, Fu; Wang, Guantao; Ding, Xilun; Luo, Sida
• Is Part Of: Composites communications. Volume 25(2021)
• Publication Date: 2021-06
• Subjects: Laser-induced graphene -- Functional composites -- Smart structures -- Polymeric composites
• DOI: 10.1016/j.coco.2021.100714
• Languages: English
• ISSNs: 2452-2139

Abstract

Abstract: Laser-induced graphene (LIG) has been witnessed with tremendous advantages including swift and simple process as well as tunable microstructures and properties for next-generation multifunctional composites. In this work, an upgraded process was innovatively proposed for assembling multifunctional graphene coatings on polymeric composites by combining extrusion-printing and LIG. Relying on computer-aided processing mode, both large-filled and specified graphene patterns have been achieved for supporting the LIG integrated composites (LIGC) with multiple functions. By virtue of high gauge factor of 134, the LIGC were highly suitable for strain-mapping. Benefiting from unique Joule-heating and hydrophobic properties, the LIGC could also be utilized for anti-icing and de-icing, with fast removal of an 8 cm 3 ice-cube and effective defense of snowflake accumulation. Additionally, the LIGC showed outstanding flame-retardant efficiency with a 40% reduction of heat release rate (HRR) versus pristine composites. Graphical abstract: In this work, an innovative process was successfully proposed for assembling multifunctional graphene coatings on polymeric composites by combining extrusion-printing and LIG. Relying on computer-aided processing mode, both large-filled and specified graphene patterns have been achieved for supporting the LIG integrated composites (LIGC) with multiple functions. The LIGC were highly advantageous with multiple functions, depending on the tunable structures and properties of LIG. By virtue of high gauge factor of 134, the LIGC were highly suitable for strain-mapping. Meanwhile, benefiting from the unique Joule-heating and hydrophobic properties, the LIGC could also be utilized in anti-icing and de-icing applications, which enabled fast removing of an 8 cm3 ice-cube and effective defense of snowflake accumulation. Additionally, the LIGC showed outstanding flame-retardant efficiency with a 40% reduction of heat release rate versus pristine composites. Image 1 Highlights: LIG integrated composites (LIGC) with multifunctionality have been developed through combining extrusion-printing and LIG. A high GF of 134 has been obtained with piezoresistivity for strain-mapping. Anti-icing and de-icing behaviors have been demonstrated based on Joule-heating and superhydrophobicity. Flame retardancy of LIGC has been verified along with a 40% reducion of HRR.