Effects of the type of processing on thermal, morphological and acoustic properties of syntactic foams

Cosse, Renato Lemos; Pinto, Fernando; Carvalho, Laura H.; Morais, Ana Carolina Lemos de; Barbosa, Renata; Alves, Tatianny Soares

doi:10.1016/j.compositesb.2019.106933

Cited by 21 publications

(12 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These agglomerated particles acted as heat sink and slowed heat diffusion inside the matrix because they absorb heat and restrict the formation of crosslinking at the resin surface 41 . Similar types of results of DSC study were reported in many literatures as HGMs/epoxy composites, 14 HGMs/poly (butylenes succinate) composites, 42 and HGMs/HDPE composites 43 …”

Section: Resultssupporting

confidence: 78%

“…41 Similar types of results of DSC study were reported in many literatures as HGMs/epoxy composites, 14 HGMs/poly (butylenes succinate) composites, 42 and HGMs/HDPE composites. 43 The TGA curves show similar trends for all the composites which signifies that addition of HGMs to coir/epoxy composite does not appreciably affect their thermal stability (Figure 5D). Kavya et al 44 also observed that the thermal properties of coir fiber epoxy composite was not significantly changed due to incorporation of inorganic fillers.…”

Section: Thermal Analysismentioning

confidence: 61%

See 1 more Smart Citation

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

Section: Resultssupporting

confidence: 78%

Section: Thermal Analysismentioning

confidence: 61%

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

show abstract

“…Salleh [50], reported an increase in the degradation of pure vinyl ester than the syntactic foam composites due to much debris or flakes from the glass microballoons. Meanwhile at 20% and 55% weight loss, the SFCs at AA, BB, CC, and DD shows higher thermal stability of 4.5% and 2.7% respectively than the NE, this is possible because the chemistry of the epoxy resin influenced a greater interaction with inorganic filler, thereby promoting the increase in the thermal stability of the SFCs [51] because high temperature treatment can damage the properties of a material [52]. The storage modulus (E') values for the SFCs and NE versus temperature containing various volume fraction and size variations is shown in Figure 9 (a-d).…”

Section: Thermal Analysismentioning

confidence: 99%

Analysis of Particle Variation Effect on Flexural Properties of Hollow Glass Microsphere Filled Epoxy Matrix Syntactic Foam Composites

Afolabi¹,

Kanny²,

Mohan³

2022

Preprint

View full text Add to dashboard Cite

Syntactic foam has proven to be a good material with a strong structural strength. Understanding filler particle size variation is important in composite material formation especially in syntactic foam because of their numerous applications such as aerospace, marine and structural purposes. In this present work, the effects of particle variation in different sizes (20-24µm, 25-44µm, 45-49µm, and 50-60µm) on the mechanical properties of the syntactic foam composites with focus on flexural strength, modulus, and fracture surfaces were investigated. The particle sizes were varied into five volume fractions (5, 10, 15, 20, and 25vol%). The results shows that highest flexural strength is 89MPa at 5 vol% fraction of 50-60µm particles size variation which is 69% increase than the neat epoxy. This implies that the incorporation of HGM filler volume fraction and size variation has a strong effect on the flexural strength and bending modulus of syntactic foam. The microstructure of the fracture surfaces and the viscoelastic properties was determined and reported accordingly.

show abstract

“…Polyethylene (PE) has the advantages of high stability, easy processing and flexibility, widely used in many fields nowadays. [1] Ceramifiable composites come into the view of researchers with the increasing safety requirements of the public. The matrices of ceramifiable composites disintegrate and fillers gradually form a ceramic-like residue when the temperature is up to 600 C or even higher.…”

Section: Introductionmentioning

confidence: 99%

Improved flame retardancy and ceramifiable properties of PE composites by the combination of aluminum hypophosphite and zinc borate

Qian

Sun

Zhang

et al. 2023

Vinyl Additive Technology

View full text Add to dashboard Cite

Ceramifiable polyolefin materials protect circuits by forming compact ceramic layers under fire conditions, and can have an excellent application prospect in the refractory cable field. In this paper, Aluminum hypophosphite (AHP) and zinc borate (ZB) were added to further improve flame retardancy and ceramifiable properties of polyethylene (PE)/silicon powder (SP)/wollastonite (WS)/ glass frits (GF) composites. The LOI values of composites with AHP/ZB can reach 23.5%, significantly higher than that of PE/SP/WS/GF composites (19.6%). The thermal stability behavior and char yield behaviors of composites could also be characterized by the TG test. The incorporation of AHP/ZB enhances the flexural strength of residue formed at 1000 C from 0.1 to 20.5 MPa. In addition, a new crystal is formed at high temperatures and is identified as the calcium aluminum phosphate phase [CAP, Ca 9 Al (PO 4 ) 7 ] by XRD analysis. The flow of molten ZB accelerates the reaction of AHP and WS, and this eutectic reaction promotes the formation and stability of ceramics. Furthermore, the SEM analysis reveals the fluxing effect of ZB at low temperatures and AHP at high temperatures. The incorporation of AHP/ZB with a ratio of 1:1 could effectively avoid the vitrification of ceramics and improve their dimensional stability.

show abstract

Effects of the type of processing on thermal, morphological and acoustic properties of syntactic foams

Cited by 21 publications

References 22 publications

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

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

Analysis of Particle Variation Effect on Flexural Properties of Hollow Glass Microsphere Filled Epoxy Matrix Syntactic Foam Composites

Improved flame retardancy and ceramifiable properties of PE composites by the combination of aluminum hypophosphite and zinc borate

Contact Info

Product

Resources

About