Effect of cellulose nanofibers on the fracture toughness mode II of glass fiber/epoxy composite laminates.

Cellulose nanofibers (CNFs) were used to improve the fracture toughness of glass fiber reinforced epoxy composites (GFRPs). Different CNF suspensions were prepared and sprayed onto the surface of woven glass fiber laminates. The vacuum resin transfer molding (VaRTM) process was used to manufacture the GFRP composites. End notch flexure tests were conducted to evaluate the effect of CNFs on the critical energy release rate in mode II fracture toughness GIIC. The results revealed that 0.05 wt% was the optimum concentration. The interlaminar fracture toughness GIIC was improved by 28% with the addition of 0.05 wt% of CNFs to GF/epoxy composites. Whereas 0.1 wt% of CNFs resulted in decreasing GIIC due to the uncomplete impregnation of GF with epoxy resin caused by the thicker CNF layer at the interfacial laminates. The toughening mechanisms were investigated using a field-emission electron microscope. Large epoxy deformations and shear hackles were predominant for improving the interlaminar fracture toughness of GFRP composites.

Moustapha Sarr M ，Kosaka T 《Heliyon》

Improved Interlaminar Properties of Glass Fiber/Epoxy Laminates by the Synergic Modification of Soft and Rigid Particles.

Liu J ，Tian S ，Ren J ，Huang J ，Luo L ，Du B ，Zhang T ... -  《-》

Cyclic Relaxation, Impact Properties and Fracture Toughness of Carbon and Glass Fiber Reinforced Composite Laminates.

Abdellah MY ，Hassan MK ，Mohamed AF ，Backar AH ... -  《Materials》

Interlaminar Mechanical Properties and Toughening Mechanism of Highly Thermally Stable Composite Modified by Polyacrylonitrile Nanofiber Films.

Ma Y ，Zhuang Y ，Li C ，Luo C ，Shen X ... -  《-》

Improvement of the mode II interface fracture toughness of glass fiber reinforced plastics/aluminum laminates through vapor grown carbon fiber interleaves.

Ning H ，Li Y ，Hu N ，Cao Y ，Yan C ，Azuma T ，Peng X ，Wu L ，Li J ，Li L ... -  《-》