An Investigation on Fire and Flexural Mechanical Behaviors of Nano and Micro Polyester Composites Filled with SiO2 and Al2O3 Particles

Ribeiro, M. C. S.; Sousa, Susana P.B.; Nóvoa, Paulo

doi:10.1016/j.matpr.2015.04.002

Cited by 29 publications

(6 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such widespread applications of UP resins are due to the flexible processing characteristics, good dimensional and thermal stability, high chemical resistance and comparatively low price. These characteristics have made UP resin the most popular among thermosetting resins with almost 80 wt% of the global market of all thermosetting resins …”

Section: Introductionmentioning

confidence: 99%

Morphology development and mechanical properties of unsaturated polyester resin containing nanodiamonds

Hashemi

Shojaei

2017

Polymer International

View full text Add to dashboard Cite

Unsaturated polyester/styrene (UP) resin was filled with nanodiamonds (NDs) containing carboxyl and methacrylate functionalities using mechanical mixing. Field emission SEM exhibited a uniform dispersion of tightly bound aggregates of nanosized spherical NDs with good interfacial interaction. Rheological measurements exhibited a step increment in the shear viscosity of a UP/ND suspension at 0.6 wt% ND resembling a percolation state at this loading. Shear viscosity data supported by dynamic mechanical analysis results suggested the development of effective ND particles in which ND aggregates were covered by only polyester macromolecules. Accordingly, the morphology of UP/ND composites approached a quasi‐percolation state at 0.6 wt% in which effective ND particles were connected thoroughly, instead of direct ND−ND contact, forming a co‐continuous polyester phase covering the ND particles. Based on such morphology, DSC and Fourier transform infrared analysis suggested the development of heterogeneous microgels in cured UP resin containing NDs which in turn governed the overall mechanical properties of the composites. © 2017 Society of Chemical Industry

show abstract

Section: Introductionmentioning

confidence: 99%

Morphology development and mechanical properties of unsaturated polyester resin containing nanodiamonds

Hashemi

Shojaei

2017

Polymer International

View full text Add to dashboard Cite

show abstract

“…This aggregation of nanoparticles decreases the active surface area available for interaction with the UPR matrix, leading to a decline in flexural strength. Additionally, it hinders the transfer of load from the matrix to the fiber, further contributing to the decrease in flexural strength [26].…”

Section: Flexural Propertiesmentioning

confidence: 99%

“…Mirabedini et al [25] investigated the surface modification of TiO 2 nanoparticles using a silane coupling agent. Ribeiro et al [26] examined a new kind of unsaturated polyesterbased combined materials using enhanced fire retardancy through a modified polymer matrix with nano/micro-oxide particles, considering their fire and flexural mechanical behaviors. They found that, compared to the neat or control formulation, the modified formulations exhibited an average decrease of 29% and 54% in flexural and impact strengths, respectively, while also observing an average increase of 19% in the elastic modulus.…”

Section: Introductionmentioning

confidence: 99%

Study on the Mechanical Characteristics, Heat Resistance, and Corrosion Resistance of Unsaturated Polyester Resin Composite

et al. 2023

View full text Add to dashboard Cite

In this study, the researchers aimed to broaden the applications of unsaturated polyester resin (UPR) composites in the building field by incorporating surface-modified titanium dioxide (TiO2) nanoparticles and reinforced chopped glass fibers within the UPR matrix. Specifically, the composites containing 4 wt.% TiO2 nanoparticles and 30 wt.% chopped glass fiber exhibited remarkable properties of 46.1 kJ/m2 in impact strength, 90.1 MPa in flexural strength, 78.8 MPa in tensile strength, and 121.5 °C in heat deflection temperature, which improve 207.5%, 80.3%, 62.5%, and 73.6%, respectively, when compared with the blank sample. Furthermore, the results of the corrosion resistance test showed that the composites performed poorly against polar organic and alkaline solutions, presented good corrosion resistance against acidic media, and behaved relatively stable in the salt solution.

show abstract

“…This widespread application of UP resin is due to its convenient processing, structural stability and superb chemical resistance. It was these characteristics that caused UP resin to become popular for PCs [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

2020

View full text Add to dashboard Cite

In this study, the effects of shrinkage reduction agent (SRA) content and filler type on the deformability characteristics of unsaturated polyester (UP) resin-based polymer concrete were experimentally investigated. Specifically, the setting shrinkage, thermal expansion, maximum compressive strain and the modulus of elasticity of UP polymer concrete were all analyzed. Setting shrinkage was found to be influenced by the UP resin, the SRA and filler. The thermal expansion, maximum compressive strain and modulus of elasticity were also affected by the aggregate. The effect of SRA content on deformability was found to be greater than that of the filler type. To put UP polymer concrete to efficient use, it is essential to secure proper deformability according to the intended purpose. At that time, it is desirable that the deformation characteristics resulting from the SRA content and filler type sufficiently reflect when the mix proportion is determined. The effects of filler type on the deformability of UP polymer concrete are such that: A uniform dispersion of filler particles impacts the setting shrinkage; the thermal expansion is influenced by the filler’s various thermal expansion properties; the compressive strain is related to the nature of the small spherical particles that tend to fill porosity, producing better packing of the aggregate materials; and the modulus of elasticity is influenced by the density, which is related to the strength of the filler. However, additional in-depth studies are required on all of these elements.

show abstract

An Investigation on Fire and Flexural Mechanical Behaviors of Nano and Micro Polyester Composites Filled with SiO2 and Al2O3 Particles

Cited by 29 publications

References 33 publications

Morphology development and mechanical properties of unsaturated polyester resin containing nanodiamonds

Morphology development and mechanical properties of unsaturated polyester resin containing nanodiamonds

Study on the Mechanical Characteristics, Heat Resistance, and Corrosion Resistance of Unsaturated Polyester Resin Composite

Deformability in Unsaturated Polyester Resin-Based Concrete: Effects of the Concentration of Shrinkage-Reducing Agent and Type of Filler

Contact Info

Product

Resources

About