Modeling and Computer Simulation of Reactive Processing

Lee, L. James

doi:10.1016/b978-0-08-096701-1.00238-x

Cited by 4 publications

(3 citation statements)

References 189 publications

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“…In dynamic method, the rate constant is a function of temperature, so it changes during heating process. 25, 26 UP resins containing promoter exhibit two exothermic DSC peaks; whereas, resins without promoter show only a single exothermic DSC peak. 27, 28 However, most of studies have dealt with the investigation of kinetic parameters in situations where only one peak is observed in DSC curves.…”

Section: Introductionmentioning

confidence: 99%

“…This could be obtained because of the existence of long chains of alkyl ammonium ions. 26, 27 Beheshty and his colleagues have studied the effect nanoclay on cure kinetic of UP resin using DSC method. Their results indicated that the addition of nanoclay decreases activation energy and reaction rate of the mixture containing nanoclay is increased.…”

Section: Introductionmentioning

confidence: 99%

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Cure kinetics of hot cured unsaturated polyester (UP)/nanoclay nanocomposite including dual initiators

Naderi

Mazinani

Beheshty

et al. 2014

Plastics, Rubber and Composites

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In this work, cure behaviour and cure kinetic parameters of unsaturated polyester (UP) resin containing Na-Montmorillonite (Cloisite 30B) is investigated. The state of nanoclay dispersion is analysed by small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Addition of 1-5 wt-% nanoclay results in decreasing gel time, exothermic peak and increasing cure rate. Cure kinetic parameters are determined employing Borchardt-Daniels method. The modelling results also prove: decreased curing reaction starting temperature, higher reaction rate and higher conversion ratio. Besides decreased activation energy ratio and shorter curing cycle are also observed as the main results of incorporating Cloisite 30B to neat UP resin.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cure kinetics of hot cured unsaturated polyester (UP)/nanoclay nanocomposite including dual initiators

Naderi

Mazinani

Beheshty

et al. 2014

Plastics, Rubber and Composites

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“…Among polymer matrices, epoxy resins are preferred over other thermoset matrices in terms of their thermal stability, mechanical properties and processability [2]. They are commonly cured with amine-based agents to form rigid network polymers [3]. However, other hardener groups such as acids and anhydrides are also used for curing epoxy resins [4].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Mechanical of CTBN Liquid Rubber‐Modified Epoxy Cured by Anhydride- and Amine-Based Agent

Sepetcioglu

2021

European Mechanical Science

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The main purpose of this work is to reveal the effects of carboxyl-terminated butadiene-acrylonitrile (CTBN) rubber particles on the tensile and fracture behavior of CTBN/epoxy blends cured with anhydride-and aminebased agents. In this study, 1 wt.%, 3 wt.%, 5 wt.%, 7 wt.%, 10 wt.% and 15 wt.% CTBN were added to two different epoxy systems. The CTBN/epoxy blends were prepared by ultrasonic mixing device, and curing processes were determined by DSC analysis. As CTBN fraction by weight increased in both epoxy systems, a decrease in tensile strength and modulus was detected, but deformation ability improved. The fracture toughness of CTBN/epoxy blends cured with the amine-based agent increased up to 10 wt.% CTBN addition. However, fracture toughness decreased when 15% by weight of CTBN was added to the epoxy matrix. The average rubber particle size was found to have a significant effect on the fracture toughness of CTBN/epoxy blends. Compared to pure epoxy, fracture toughness was increased approximately 3.5-fold in 10 wt.% CTBN/epoxy blend cured with the aminebased agent. In CTBN/epoxy blends cured with the amine-based agent, CTBN shifted the reaction rate and thus it was provided better control over CTBN particle size in the CTBN/epoxy cured. The toughening mechanisms induced by CTBN, such as rubber cavitation and matrix shear banding, contributed to the enhanced fracture toughness of the CTBN/epoxy cured with the amine-based agent.

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The opportunities and challenges of hybrid composite driveshafts and their couplings in the aerospace industry: A review

Jarrett

Jeffs

Korkees

et al. 2023

Composite Structures

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Modeling and Computer Simulation of Reactive Processing

Cited by 4 publications

References 189 publications

Cure kinetics of hot cured unsaturated polyester (UP)/nanoclay nanocomposite including dual initiators

Cure kinetics of hot cured unsaturated polyester (UP)/nanoclay nanocomposite including dual initiators

Characterization of Mechanical of CTBN Liquid Rubber‐Modified Epoxy Cured by Anhydride- and Amine-Based Agent

The opportunities and challenges of hybrid composite driveshafts and their couplings in the aerospace industry: A review

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