Mechanical properties of an epoxy-based coating reinforced with silica aerogel and ammonium polyphosphate additives
Source abstract
Abstract
Flame retardant (FR) additives may degrade polymers’ mechanical performance. In this work, FR epoxy composites fabricated based on two popular FR agents of ammonium polyphosphate (APP) and silica aerogel (SAG) are investigated. Several mechanical properties of these composites, including compressive, micro-hardness, and Izod impact, were investigated for different filler loadings. Although the addition of 10 vol.% APP improved compressive modulus, yield strength, and micro-hardness, it degraded the impact strength. The incorporation of SAG made the composites more ductile, improved the impact strength, but deteriorated their compressive properties. Samples containing both SAG and APP demonstrated synergetic effects evident by their enhanced compressive properties and hardness. The findings of this study can guide the design of epoxies with both exceptional FR and mechanical performance.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Flame retardant materials and properties · Silicone and Siloxane Chemistry · Aerogels and thermal insulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, University of Tehran, Tehran, Iran
Mechanical Engineering Department, Amirkabir University of Technology, Tehran, Iran
School of Civil Engineering, University of Tehran, Tehran, Iran
Department of Mechanical & Aerospace Engineering, Ramsar Branch, Islamic Azad University, Ramsar, Iran
Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
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