Effect of fire retardants on mechanical properties of a green bio‐epoxy composite

ABSTRACT To improve fire retardant behavior of bio‐epoxy resin, composites were prepared with three fire retardants (FRs); ammonium polyphosphate, aluminum trihydrate, and magnesium hydroxide. Fractured surfaces of prepared composites were observed with the scanning electron microscope (SEM). Tensil...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 2019-04, Vol.136 (16), p.n/a
Main Authors: Budd, Ryan, Cree, Duncan
Format: Article
Language:English
Subjects:
Aluminum
Bio‐epoxy resin
Composite materials
composites
Differential scanning calorimetry
Elongation
Epoxy resins
flame retardant
Flame retardants
Fracture toughness
Glass transition temperature
Impact strength
Magnesium hydroxide
Materials science
Mechanical properties
Polymer matrix composites
Polymers
Scanning electron microscopy
Stability analysis
Stiffness
Surface stability
Tensile strength
Thermal stability
Thermogravimetric analysis
Variance analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT To improve fire retardant behavior of bio‐epoxy resin, composites were prepared with three fire retardants (FRs); ammonium polyphosphate, aluminum trihydrate, and magnesium hydroxide. Fractured surfaces of prepared composites were observed with the scanning electron microscope (SEM). Tensile strength and Charpy toughness were evaluated and analyzed statistically using analysis of variance (ANOVA). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to determine the thermal stability. SEM analysis results revealed fractured surfaces were altered with addition of FRs. Adding FRs can be regarded as a decrease in tensile strength and toughness complemented by improved stiffness. ANOVA analysis showed FR/bio‐resin composites have a statistically significant loss in tensile strength, stiffness, elongation, and Charpy toughness. The DSC results showed the glass transition temperature was not affected significantly by adding FRs and ranged from 66 to 69 °C. TGA showed the initial, midway, and maximum decomposition temperatures for composites and their ability to form improved ash yields compared to pure resin. Aluminum trihydrate and Mg(OH)2 had higher T50 suggesting an increase in thermal stability compared to pure bio‐epoxy. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47398.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.47398