The effect of electron beam irradiation on the dispersion and properties of poly(ethylene-co-vinyl acetate)/clay nanocomposites

Hwang, Tae Yong; Lee, Sang-Mook; Kang, Phil‐Hyun; Park, Ki Hyun; Ahn, Young-Sup; Lee, Jae Woo

doi:10.1007/s13233-011-1104-5

Cited by 7 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Non-covalent functionalization, such as the use of surfactants, has regularly been used to overcome filler entanglements as a result of Van der Waals forces [11][12][13]. Ion or electron beam irradiation of nanocomposites has been used to modify the morphology and properties of composites [14][15][16][17]. During treatment for medical applications, a polyolefin matrix has been exposed to a sufficient amount of radiation to induce a significant change in the mechanical properties [17].…”

Section: Introductionmentioning

confidence: 99%

“…Melt mixing is the most industrially compatible and common method used to prepare polymer composites, even if the mixing conditions may have a strong influence on the final properties [29]. In polymer composites, electron beam radiation may induce chain scission and/or crosslinking [14][15][16][17], and may change the crystallinity or microstructure.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of surfactant and radiation treatment on the morphology and properties of PP/EG composites

et al. 2015

View full text Add to dashboard Cite

The effects of surfactant and electron beam (EB) radiation treatment on the morphology and properties of polypropylene (PP)/expanded graphite (EG) composites were investigated. Surfactant treatment and sonication of EG before mixing with PP significantly influenced the morphologies of the composites, and the modification of EG with sodium dodecyl sulphate (SDS) had a strong negative influence on the electrical conductivities of these composites. The electrical percolation concentration is shifted from 5 to 6 wt% filler to about 10 wt% filler in the presence of SDS. The melting and crystallization temperatures of PP in the composites were not affected by surfactant or EB radiation treatment. There were small differences in PP crystallinity, depending on the type and combination of treatments. The filler particles acted as nucleating agents and the crystallization temperatures shifted to higher temperatures. The thermal stability of PP was significantly higher after irradiation, and improved even further for the samples containing EG, but the presence of EG had little influence on the thermal stabilities of the non-irradiated composites. For both non-irradiated and irradiated composites the maximum tensile stress and elongation at break values are lower than the neat matrix, while the tensile modulus increased significantly.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of surfactant and radiation treatment on the morphology and properties of PP/EG composites

et al. 2015

View full text Add to dashboard Cite

show abstract

Effect of surfactant and electron treatment on the electrical and thermal conductivity as well as thermal and mechanical properties of ethylene vinyl acetate/expanded graphite composites

Sefadi

Luyt

Pionteck

et al. 2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

This study presents an investigation of the electrical and thermal conductivities of composites based on an ethylene vinyl acetate (EVA) copolymer matrix and nanostructured expanded graphite (EG). To improve the EG dispersion in EVA, EG sheets were modified by treating them with the anionic surfactant sodium dodecyl sulphate (SDS) in water. The modified SDS-EG platelets, after being filtered and dried, were melt-mixed with EVA to prepare the composites. Finally, both EVA/EG and EVA/SDS-EG composites were subjected to 50 kGy electron beam (EB) irradiation. SEM images confirm that the irradiated EVA/EG samples had improved interfacial adhesion, while the irradiated EVA/SDS-EG samples showed even better interfacial adhesion. The gel contents of the irradiated samples without and with SDS treatment increased with increase in EG loading. The EVA/EG composites exhibited a sharp transition from an insulator to a conductor at an electrical percolation threshold of 8 wt %, but with SDS-EG the electrical conductivity was extremely low, showing no percolation up to 10 wt % of filler. The EB irradiation had no influence on electrical conductivity. The thermal conductivity linearly increased with EG content, and this increase was more pronounced in the case of SDS-EG, but decreased after EB irradiation. The thermal properties were little influenced by EB irradiation, while better polymer-filler interaction and better filler dispersion as a result of SDS treatment, and the EB irradiation initiated formation of a cross-linked network, had a positive effect on the tensile properties.

show abstract

Magnesium Aluminium Layered Double Hydroxide Assisted Dispersion of Multiwalled Carbon Nanotubes for Enhanced Reinforcement of Ethylene-co-Vinyl Acetate Matrix

et al. 2018

View full text Add to dashboard Cite

The effect of electron beam irradiation on the dispersion and properties of poly(ethylene-co-vinyl acetate)/clay nanocomposites

Cited by 7 publications

References 28 publications

Effect of surfactant and radiation treatment on the morphology and properties of PP/EG composites

Effect of surfactant and radiation treatment on the morphology and properties of PP/EG composites

Effect of surfactant and electron treatment on the electrical and thermal conductivity as well as thermal and mechanical properties of ethylene vinyl acetate/expanded graphite composites

Magnesium Aluminium Layered Double Hydroxide Assisted Dispersion of Multiwalled Carbon Nanotubes for Enhanced Reinforcement of Ethylene-co-Vinyl Acetate Matrix

Contact Info

Product

Resources

About