High pressure laminates reinforced with electrospun cellulose acetate nanofibers. (15th February 2021)

• Record Type: Journal Article
• Authors: Ji, Yujie; Xia, Qi; Cui, Juqing; Zhu, Minghao; Ma, Yufeng; Wang, Yutong; Gan, Lu; Han, Shuguang
• Is Part Of: Carbohydrate polymers. Volume 254(2021)
• Publication Date: 2021-02-15
• Subjects: High pressure laminates -- Cellulose acetate nanofibers -- Electrospinning -- Mechanical properties; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2020.117461
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Cellulose acetate is a renewable resource with the characteristics of biodegradation, thermal stability and high strength. Electrospun CA nanofibers was introduced into the core layer of HPLs as a reinforcing material. The strength and toughness of HPLs reinforced with CA nanofibers exhibited a remarkable enhancement. The thermal stability of HPLs with CA nanofibers improved significantly. Abstract: In the work, the non-woven cellulose acetate (CA) nanofiber mats were prepared via electrospinning, and CA nanofiber were incorporated into the core layer of the high-pressure laminates (HPLs). When the concentration of CA was 16 wt%, SEM images demonstrated that the morphology of the CA nanofiber mat was the best, with an average diameter of 654±246 nm. When CA nanofiber mats were incorporated into the core layer of HPLs, the mechanical properties of the resulted HPLs composites were significantly improved. Specifically, the tensile strength and elongation at break of the nanofiber mats reinforced HPLs composites increased remarkably to 40.8 ±1.1 MPa and 27.9 ± 0.9 %, respectively, which were nearly 6 times and 4.4 times higher than those of the pure HPLs. Furthermore, the incorporation of the CA nanofiber mats also significantly improved the flame retardancy of the HPLs, which was revealed from the thermogravimetric analysis (TGA) results.