Preparation of aramid-based epoxy resin from low-grade aramid

Abstract

Low-grade aramid fibers are transformed to high value-added aramid-based epoxy resin. Bisphenol-A epoxy resin with aramid-based epoxy resin cured products exhibited improved mechanical properties, outperforming pure E-51 and pure aramid.

Resin Wettability Correlates Linearly to Interfacial Fracture Energy between Thermosetting Elastomers and Glass

“…The design and synthesis of the polymer phase have also been investigated as a way to tailor composite performance. This is a particularly useful approach when the reinforcement phase is difficult/impossible to chemically modify (e.g., aramid fibers, 19 ultra-high-molecular-weight polyethylene fibers 20 ).…”

“…The design and synthesis of the polymer phase have also been investigated as a way to tailor composite performance. This is a particularly useful approach when the reinforcement phase is difficult/impossible to chemically modify (e.g., aramid fibers, ultra-high-molecular-weight polyethylene fibers). For example, rubber modifiers or bimodal blends can be used to toughen polymer networks. − Additionally, there have been sustained efforts in producing bio-based thermosetting polymers that maintain the performance of traditional commercial thermosets. , Bio-based systems can also provide additional functionality, such as remendability in the case of furan-based networks. − Polymers can also be modified with silanes.…”

Curaua–Aramid Hybrid Laminated Composites for Impact Applications: Flexural, Charpy Impact and Elastic Properties

“…Impact strength tests are commonly used to evaluate the amount of energy absorbed by materials before fracturing using the Charpy or Izod configurations [4,[67][68][69][70]. In previous Charpy impact results [52], the energy absorbed was inversely proportional to the number of curaua non-woven mat layers.…”

Preparation of a cyclotriphosphazene microsphere bearing a phosphaphenanthrene structure towards fire-safety and mechanical enhancement for epoxy and its aramid fiber composite

“…1,2 Amongst them, aramid fiber reinforced epoxy resin composites (AF/EP) are developed to meet different industrial requirements. 3 However, the intrinsic flammability of EP has become a key factor that restricts its further application, and also brings about fire risk for AF/EP composites due to the wick effect, in which the heat and fuel are produced and transferred along the fiber direction to continuously feed the fire. [4][5][6][7] In most cases, the flame retardancy of EP was improved, which was always accompanied by the deterioration of mechanical properties due to the negative interaction between EP and flame retardants.…”