Mechanical properties and microstructure of lightweight polymer composites containing mono and hybrid fillers sourced from recycled solid wastes

Tasnim, Sadia; Shaikh, Faiz; Sarker, Prabir Kumar

doi:10.1016/j.conbuildmat.2021.122369

Cited by 14 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Today, lightweight, higher-performance, and lower-cost materials have become an inevitable trend in material research alongside the increasing concern for sustainable development of resources, environmental protection, and energy saving [ 1 , 2 , 3 ]. During the process, low-density unsaturated polyester resin (LDUPR) and its composite materials are new hot points of research on thermosetting resin composites for their lightweight, high specific strength, excellent thermal and acoustic insulation, and conservation of raw materials [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Low-Density Unsaturated Polyester Resin with the Presence of Dual-Initiator

2023

View full text Add to dashboard Cite

Dual-initiation is a new orientation of many studies in the curing of unsaturated polyester resin and the manufacture of low-density unsaturated polyester resin (LDUPR) composite materials. In our research, two kinds of low-temperature (40–70 °C) initiators (cyclohexanone peroxide (CYHP) and methyl ethyl ketone peroxide (MEKP)), one kind of medium-temperature (70–130 °C) initiator (tert-butyl peroxy-2-ethylhexanoate (TBPO)), and three kinds of high-temperature (≥130 °C) initiators (tert-butyl benzoate peroxide (TBPB), tert-amyl carbonate peroxide-2-ethylhexanoate (TAEC), and tert-butyl carbonate peroxide-2-ethylhexanoate (TBEC)) were applied to constitute different dual-initiators. Those dual-initiators were a low-temperature dual-initiator (CYHP/MEKP), medium-low-temperature dual-initiators (CYHP/TBPO and MEKP/TBPO), and high-temperature dual-initiators (TAEC/TBPB, TAEC/TBEC, and TBEC/TBPB). In the low-temperature and medium-low-temperature ranges, the LDUPR sample displayed the highest specific compression strength (Ps) of 42.08 ± 0.26 MPa·g−1·cm3 in the presence of the MEKP/TBPO dual-initiator. In the high-temperature range, the LDUPR sample exhibited the highest specific compression strength (Ps) of 43.32 ± 0.45 MPa·g−1·cm3 for the existence of the TAEC/TBPB dual-initiator. It is pointed out that the dual-initiator released more active free radicals, accelerating the initial curing time and the peak time of UPR. More active free radicals caused both high-activity (short-chain) molecules and low-activity (long-chain or intertwined) molecules in resin to cross-link, prolonging UPR’s curing process by approximately two minutes and resulting in an improvement of UPR’s cross-linking. In the presence of a dual-initiator, the integrated and planar microstructure of LDUPR samples performed uniformly distributed dimples, dispersed external forces, and enhanced samples’ specific compressive strength.

show abstract

Section: Introductionmentioning

confidence: 99%

Low-Density Unsaturated Polyester Resin with the Presence of Dual-Initiator

2023

View full text Add to dashboard Cite

show abstract

“…Nowadays, there is an emerging trend for continuous innovation in the composite industry [12]. The industry is seeking for sustained lightening of industrial parts, improved performance of reinforcement and the extended lifespan of composite structures in use [13]. Thus, in this paper, the Taguchi method and Taguchi-Pareto methods are proposed as new methods in the context of diffusion parametric estimation to account for the parametric setting in both prioritized and non-prioritized forms of composite parameters for improved performance of reinforcements.…”

Section: Introductionmentioning

confidence: 99%

Taguchi Method and Taguchi-Pareto Scheme to Evaluate Diffusivity during the Development of Orange Peel Epoxy Composites

Ajibade

Agunsoye

Oke

2021

JASPE

View full text Add to dashboard Cite

The diffusion parameters of orange peel epoxy composites are important elements in composite structure in that they explain how fast water and other fluids can diffuse through the composites as a sign of integrity test. In this article, we defined the optimal parametric settings for diffusivity parameters of orange peel epoxy composites. The Taguchi optimisation method used obtained an optimal parametric setting of P4Q4R1 in experiments conducted for three and seven days, respectively. The analysis of variance revealed significant contributions made by the initial and final weights, while the thickness parameter was found to be less significant. A variant of the Taguchi method called Taguchi-Pareto was introduced, which also underscores the thickness parameter as not economical to optimality. The specifications and dimensions obtained by Taguchi method or its variant may be useful design engineers when contemplating on how to reduce diffusivity and water uptake of composites.

show abstract