Phase Separation in Poly(Methyl Methacrylate)-Epoxy Blend

Kim, Hee-Cheul; Kim, Jeong Tai; Kathi, John; Rhee, Kyong-Yop

doi:10.1080/00222340902841206

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…As reported by previous studies [5][6][7], the polymer blending of epoxy and PMMA required the aid of solvent (CH 2 Cl 2 ) for blending to happen. However, through this method, lots of solvent is needed for the sample preparation steps and is removed before the samples is shaped into its final form.…”

Section: Introductionmentioning

confidence: 76%

The Influence of Blending Methods in Epoxy/PMMA Polymer Blend

Phua

Teh

Ghani

et al. 2016

MSF

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Polymer blend consist of epoxy and polymethylmethacrylate (PMMA) was prepared via two different blending methods. Conventional blending method which required solvent to obtain polymer blend of PMMA and epoxy. However, due to the high consumption of solvent and environmental issue, a new approaching method: direct mixing method was used to prepare the polymer blend without the usage of solvent. The PMMA pellets are grinded and sieved into fine powders and incorporated into epoxy. Comparison between the conventional and new method was done through the investigation based on the morphology and mechanical behaviour, with different PMMA content (0, 10, 20, 30, 40 and 50 vol.%) between two blending methods. In overall, the polymer blend system prepared via direct mixing methods exhibited better mechanical properties as compared to conventional solvent dissolution method. Improvement on fracture toughness was observed in direct mixing method.

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Section: Introductionmentioning

confidence: 76%

The Influence of Blending Methods in Epoxy/PMMA Polymer Blend

Phua

Teh

Ghani

et al. 2016

MSF

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“…Many studies have reported on the usage of the immiscible polymer blend in thermoset/thermoplastic to provide a double percolation condition in order to lower the P c . In general, thermoset/thermoplastic blend systems can be prepared using several methods, including, melt blending, high temperature mixing, and solvent deposition . Studies are focused on the dispersion of filler and the optimum filler loading in relation to the electrical conductivity of the composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of thermoplastic spacer on the mechanical, electrical, and thermal properties of carbon black filled epoxy adhesives

Phua

Teh

Ghani

et al. 2016

Polymers for Advanced Techs

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A new approach of mimicking the selective localization mechanism of conductive filler into one phase of immiscible polymer blend system is proposed here, where a moderate fine of polymethylmethacrylate (PMMA) powder is prepared and used as the spacer in the carbon black (CB) filled epoxy adhesives system that can be applied at room temperature. The main purpose of PMMA‐spacer is to promote the formation of conductive networks via aiding the 3D self‐assembly of CB filler, selectively in the continuous phase of epoxy. PMMA‐spacer content ranged from 10, 20, 30, 40, and 50 vol.% were investigated under electrical, mechanical, and thermal properties for both unfilled and 15 vol.% CB filled system. With the incorporation of 10 vol.% PMMA‐spacer, the filled system shows promising improvement in electrical conductivity, with three order of magnitude increment at 15 vol.% CB loading. Toughening mechanism of epoxy was observed, where crack deflection upon the PMMA‐spacer is observed under scanning electron microscopy characterization and agreed by fracture toughness calculation. Thermal stability and coefficient of thermal expansion were improved at the minimum addition of PMMA‐spacer content, at 10 vol.%, while a small reduction in flexural strength is observed because of the poor interface interaction between the PMMA‐spacer and epoxy matrix. Interestingly, a limited interaction between the PMMA‐spacer with epoxy at the curing temperature of 100°C is observed, indicating the solubility of PMMA‐spacer in epoxy before crosslinking process occurred. Copyright © 2016 John Wiley & Sons, Ltd.

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“…It was found that the rubber which is in general soluble in the uncured epoxy resin, precipitates out from solution during the curing process, forming a fine and homogeneous dispersion of rubber particles. In order to overcome the drawback of the detrimental effect on the thermal properties due to incorporation of liquid reactive rubbers, thermoplastics have been used to toughen epoxy resins 1,[14][15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties Evaluation of an Epoxy Resin Toughened by a Combination of Reactive Polyester and Kaolin

Bakar

Białkowska

Rudecka

et al. 2012

Polymers and Polymer Composites

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The present work investigates the effect of reactive polyester and kaolin on the mechanical and adhesive properties of brittle epoxy resin. The impact strength (IS), flexural strength and critical stress intensity factor (KC), as well as the adhesive strength under tensile and impact conditions, were evaluated as functions of the modifier content. The results obtained showed an improvement in the impact strength and flexural strength as well as adhesive strength under impact and tensile conditions due to kaolin and polyester addition. However, the flexural modulus decreased with the polyester and increased with the kaolin content. Hybrid compositions containing 30 wt.% of polyester and 30 wt.% of kaolin showed enhanced tensile adhesive strength as well as impact adhesive strength in comparison to the virgin epoxy resin, exhibiting a synergic effect. SEM micrographs confirmed the presence of a regular and homogeneous stratified structure with particles embedded in the polymer matrix, explaining the improvement of mechanical properties.

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Phase Separation in Poly(Methyl Methacrylate)-Epoxy Blend

Cited by 6 publications

References 20 publications

The Influence of Blending Methods in Epoxy/PMMA Polymer Blend

The Influence of Blending Methods in Epoxy/PMMA Polymer Blend

Influence of thermoplastic spacer on the mechanical, electrical, and thermal properties of carbon black filled epoxy adhesives

Preparation and Properties Evaluation of an Epoxy Resin Toughened by a Combination of Reactive Polyester and Kaolin

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