Thermal and mechanical properties of tetrafunctional epoxy resin toughened with epoxidized soybean oil

Park, Soo‐Jin; Jin, Fan‐Long; Lee, Jae‐Rock

doi:10.1016/j.msea.2004.01.002

Cited by 220 publications

(110 citation statements)

References 25 publications

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“…Compounds structure used for solubility parameters calculation [58]. It has been reported that ESO [59] or pre-polymerized ESO [60] is only partially miscible, i.e., has phase separation, with the epoxy resins. The thermodynamic condition for polymer compatibility is that free energy change of mixing ("G mix ) should be small or negative, based on Flory-Huggins equation combined and Hildebrand solubility parameters [61].…”

Section: Compatibilitymentioning

confidence: 99%

Vegetable oil-derived epoxy monomers and polymer blends: A comparative study with review

Wang¹,

Schuman²

2013

Express Polym. Lett.

146

116

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Abstract. Glycidyl esters of epoxidized fatty acids derived from soybean oil (EGS) and linseed oil (EGL) have been synthesized to have higher oxirane content, more reactivity and lower viscosity than epoxidized soybean oil (ESO) or epoxidized linseed oil (ELO). The EGS and ESO, for comparison, were used neat and in blends with diglycidyl ether of bisphenol A (DGEBA). Thermosetting resins were fabricated with the epoxy monomers and either BF 3 catalyst or anhydride. The curing behaviors, glass transition temperatures, crosslink densities and mechanical properties were tested. The results indicated that polymer glass transition temperatures were mostly a function of oxirane content with additional influence of glycidyl versus internal oxirane reactivity, pendant chain content, and chemical structure and presence of saturated components. EGS provided better compatibility with DGEBA, improved intermolecular crosslinking and glass transition temperature, and yielded mechanically stronger polymerized materials than materials obtained using ESO. Other benefits of the EGS resin blend systems were significantly reduced viscosities compared to either DGEBA or ESO-blended DGEBA counterparts. Therefore, EGS that is derived from renewable sources has improved potential for fabrication of structural and structurally complex epoxy composites, e.g., by vacuum-assisted resin transfer molding.

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Section: Compatibilitymentioning

confidence: 99%

Vegetable oil-derived epoxy monomers and polymer blends: A comparative study with review

Wang¹,

Schuman²

2013

Express Polym. Lett.

146

116

View full text Add to dashboard Cite

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“…By using 10 wt% ESO content, reported results of critical stress intensity factor and the flexural strength showed improvement [63]. Although such modifiers have been proved effective, they cause deleterious effects on other properties like strength, modulus, and glass transition temperature (T g ), a detailed discussion and reviews are presented in a number of papers [64][65][66].…”

Section: Toughening Of Epoxy Resins (With Additives/modifiers) and Thmentioning

confidence: 99%

Multiscale Polymer Composites: A Review of the Interlaminar Fracture Toughness Improvement

Dikshit

Bhudolia

Joshi

2017

Fibers

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Abstract:Composite materials are prone to delamination as they are weaker in the thickness direction. Carbon nanotubes (CNTs) are introduced as a multiscale reinforcement into the fiber reinforced polymer composites to suppress the delamination phenomenon. This review paper presents the detailed progress made by the scientific and research community to-date in improving the Mode I and Mode II interlaminar fracture toughness (ILFT) by various methodologies including the effect of multiscale reinforcement. Methods of measuring the Mode I and Mode II fracture toughness of the composites along with the solutions to improve them are presented. The use of different methodologies and approaches along with their performance in enhancing the fracture toughness of the composites is summarized. The current state of polymer-fiber-nanotube composites and their future perspective are also deliberated.

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“…The cured epoxy resins show excellent chemical resistance, high modulus, good UV-blocking effect, and good thermal stability [12,13].…”

Section: Tetrafunctional Epoxy Resinsmentioning

confidence: 99%

Polymer matrices for carbon fiber-reinforced polymer composites

Jin¹,

Lee²,

Park³

2013

Carbon letters

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Carbon fibers (CFs) have high service temperature, strength, and stiffness, and low weight. They are widely used as reinforcing materials in advanced polymer composites. The role of the polymer matrix in the composites is to provide bulk to the composite laminate and transfer load between the fibers. The interface between the CF and the resin matrix plays a critical role in controlling the overall properties of the composites. This paper aims to review the synthesis, properties, and applications of polymer matrices, such as thermosetting and thermoplastic resins.

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Thermal and mechanical properties of tetrafunctional epoxy resin toughened with epoxidized soybean oil

Cited by 220 publications

References 25 publications

Vegetable oil-derived epoxy monomers and polymer blends: A comparative study with review

Vegetable oil-derived epoxy monomers and polymer blends: A comparative study with review

Multiscale Polymer Composites: A Review of the Interlaminar Fracture Toughness Improvement

Polymer matrices for carbon fiber-reinforced polymer composites

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