Improvement of insulation properties of glass fiber fabric/epoxy composites modified by polymeric and inorganic fillers

Altay, Pelin; Uçar, Nuray

doi:10.1002/pc.26369

Cited by 10 publications

(6 citation statements)

References 57 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lower λ in the composites may be explained by their greater θ and, therefore, the larger proportion of air in their microstructure. [62][63][64][65] Moreover, the composite with treated fibers had a λ 8.5% lower than the composite with native MW, despite the small differences in their θ and V f-empty . This result demonstrated the importance of keeping the hollow structure of MW for improving the insulation capacity of the composites.…”

Section: Thermal Conductivity Of the Compositesmentioning

confidence: 99%

Investigating the use of natural hollow fibers from common milkweed to improve the mechanical and thermal properties of epoxy resin

Sanchez-Diaz

Ouellet²,

Elkoun

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

Milkweed floss was used as a reinforcement to develop lightweight epoxy composites with enhanced thermal insulating properties. Seed fibers from Asclepias Syriaca harvested in Quebec were used for this study. Some fibers were treated with acetone to remove their protective hydrophobic coating.Epoxy resin was blended with 15% w/w of native or acetone-treated milkweed floss to form prepregs. The prepregs were casted into molds, degassed, and compressed to produce the composites. The composites were passed through a post-curing phase before characterization. The composites and the epoxy resin alone were characterized to determine their density, porosity, thermal conductivity, thermal degradation, mechanical resistance, and thermo-mechanical behavior. The composites reinforced with native or acetone-treated milkweed floss were 7.4% and 10.3% lighter than the epoxy resin, respectively. The specific elastic modulus of the resin increased by 9.6% and 20.1% with the addition of native or acetone-treated fibers, respectively. The thermal conductivity of the epoxi decreased by 7.8% and 15.6% with the use of native or acetonetreated milkweed floss, respectively. Due to their low weight and reduced thermal conductivity, the milkweed-reinforced epoxy composites may find applications in the production of structural and insulating elements for vehicles and buildings.

show abstract

Section: Thermal Conductivity Of the Compositesmentioning

confidence: 99%

Investigating the use of natural hollow fibers from common milkweed to improve the mechanical and thermal properties of epoxy resin

Sanchez-Diaz

Ouellet²,

Elkoun

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…Glass fiber is a wellknown inorganic reinforcement because it has important engineering applications owing to its thermal and mechanical properties and corrosion resistance, such as in aerospace, automobiles, and civil construction. 1 Calcium carbonate, on the other hand, is used as a filler in polymeric composites mainly for reducing production costs, improving mechanical properties and hardness, and facilitating processing, such as contraction control in the injection process. CaCO 3 efficiency is affected by several factors, such as filler content, particle size, and particle adhesion.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of the substitution of inorganic fibers and fillers with vegetable fibers and fillers in polystyrene composites

Ponsoni,

de Almeida,

Madeira

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Thermoplastic composites exhibit improved mechanical performance compared to pure matrices, and the fiber is usually the most influential component of the composite. Recently, studies related to the use of vegetable fibers have grown significantly, but few works report the direct comparative between inorganic and vegetable fibers and fillers as reinforcements. In this work, composites were produced with polystyrene (PS) matrix, reinforced with inorganic fibers (glass), vegetal fibers (kapok), particulate inorganic (CaCO3), and vegetal (wood) fillers. The composites were mixed by a twin‐screw co‐rotating extruder and after processed in an injection‐molding machine. Statistical analyses of density, tensile and flexural strength abrasion resistance were made, along with analyzes of thermal deflection temperature, dynamic mechanical analysis, and scanning electron microscopy were performed on the composites. The main results indicate that all reinforcing agents (vegetal and inorganic fibers and fillers) show a regular trend of increasing the mechanical properties proven by statistical comparison, presenting p < 0.01 that proves a significant increase. By dynamic mechanical analysis, vegetable reinforcements showed a higher coefficient of effectiveness when compared to composites produced with inorganic reinforcements.

show abstract

“…The maximum increase in thermal stability of 26°C was observed for the composites fabricated with addition of 40 wt% HGMs and 8 wt% of carbon fibers. Altay et al 22 observed that the addition of HGMs did not contribute to improving in thermal insulation and sound absorption properties of glass fiber/epoxy composites. The fracture toughness of the epoxy resin composites could be enhanced with the reinforcement of hollow glass microspheres due to the debonding of HGMs particles 10,23,24 .…”

Section: Introductionmentioning

confidence: 99%

Static, dynamic mechanical, and thermal analysis of coir/epoxy composites: Effect of hollow glass microspheres reinforcement

Singh,

Trivedi,

Gupta

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

Nowadays, various types of biocomposites are being developed using different types of natural fibers and polymers to fulfill the requirement for sustainable products. Recently, the addition of fillers in biocomposites has been a useful approach to improve their performance and overwhelm their limitations. The hollow glass microspheres (HGMs) were uniformly distributed into epoxy using a magnetic stirrer and subsequently, a hand lay‐up technique was employed to produce the HGMs/coir/epoxy composites under a static loading condition. In the current study, the effect of varying weight percentages (i.e., 1, 3, and 5) of HGMs on the mechanical, dynamic mechanical, and thermal properties of coir/epoxy composites has been studied. Further, morphological analysis of fractured surfaces of samples was also performed. The results suggested that the addition of HGMs caused a significant improvement in the tensile and impact properties of the composites but could not extensively improve the flexural strength, thermal stability, storage modulus, and loss modulus. There was a significant improvement of 80.5% in tensile strength and 24.7% in impact strength of composites after the addition of 1 wt%. HGMs. Further, tensile and flexural moduli were found to be gradually improved with increased HGMs weight percentages in the composites.Highlights Development of HGMs/coir/epoxy composites. Addition of HGMs increases tensile and impact strength of coir/epoxy composites. Microstructural analysis of HGMs/coir/epoxy composites.

show abstract

Improvement of insulation properties of glass fiber fabric/epoxy composites modified by polymeric and inorganic fillers

Cited by 10 publications

References 57 publications

Investigating the use of natural hollow fibers from common milkweed to improve the mechanical and thermal properties of epoxy resin

Investigating the use of natural hollow fibers from common milkweed to improve the mechanical and thermal properties of epoxy resin

Statistical analysis of the substitution of inorganic fibers and fillers with vegetable fibers and fillers in polystyrene composites

Static, dynamic mechanical, and thermal analysis of coir/epoxy composites: Effect of hollow glass microspheres reinforcement

Contact Info

Product

Resources

About