Radiation processing of Nylon 6 by e-beam for improved properties and performance

Pramanik, Nilay; Haldar, R.S.; Bhardwaj, Y.K.; Sabharwal, S.; Niyogi, Utpal Kumar; Khandal, Rakesh Kumar

doi:10.1016/j.radphyschem.2008.11.004

Cited by 65 publications

(36 citation statements)

References 10 publications

(9 reference statements)

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“…The EPDM spots initiate degradation and peroxyl intermediates are spread onto the whole sample volume. The propagation of oxidation is sustained by the chain mechanisms in both types of components according to their particular reactions [32,33]. The main kinetic parameters of oxidative degradations, oxidation induction time (the period when non-detectable oxidation is recorded) and the process rate in the propagation step are the measures of stability, which illustrate the overall contribution of the components.…”

Section: Chemiluminescence (Cl) Investigationmentioning

confidence: 99%

Study on radiation aging of PA6/EPDM blends

Zaharescu¹,

Lungulescu²,

Caramitu³

et al. 2015

Iran Polym J

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Section: Chemiluminescence (Cl) Investigationmentioning

confidence: 99%

Study on radiation aging of PA6/EPDM blends

Zaharescu¹,

Lungulescu²,

Caramitu³

et al. 2015

Iran Polym J

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“…The values of p 0 /q 0 were obtained graphically from the intercept of the experimental curve of (S + S 1/2 ) versus 1/D. G(S), the number of polymer chain scission per 100 ev energy absorbed and G(X), the number of polymer crosslink site per 100 ev energy absorbed are related to p 0 and q 0 by the relation 11,15 G(S) / G(X) = 2 (p 0 /q 0 )…”

Section: G(s)/g(x) Ratiomentioning

confidence: 99%

“…Only a few works reported the effect of e-beam irradiation on injection molded specimens [14][15] . In this study we report quite extensively the investigation of the effect of e-beam irradiation on nylon 66 blended with triallyl isocyanurate (TAIC) as crosslinker and polyurethane (PU) as impact modifier towards the improvement of its physico-mechanical properties and modification of morphological parameters.…”

Section: Introductionmentioning

confidence: 99%

Development of an Advanced Engineering Polymer from the Modification of Nylon 66 by e-Beam Irradiation

Pramanik

Haldar

Niyogi

et al. 2014

DSJ

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When Nylon 66 was irradiated by an optimum dose of e-beam in presence of polyurethane as impact modifier in combination with triallyl isocyanurate as cross-linker, a superior performance was observed for the irradiated nylon 66. Significant improvement of properties, such as hardness, tensile strength, flexural modulus and impact strength was obtained on radiation processing of nylon 66 by e-beam. More interestingly, percent water absorption of such irradiated nylon 66 was reduced substantially. Improvement of mechanical properties and reduction of water absorption of irradiated nylon 66 were due to the cross-linking of the polymer system. Increase of cross-linking with dose of e-beam was verified by the increased gel content at higher doses. Irradiated nylon 66 showed better dimensional stability than those achieved with pristine nylon 66. The increase in dimensional stability may be attributed to reduction in crystallinity with increasing dose of e-beam as revealed by DSC studies.

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“…Gel content was determined by the method of solvent extraction [14,15]. Crosslinked samples of nylon 6 and nylon 6/clay nanocomposites were dipped in 85% formic Brought to you by | Carleton University OCUL Authenticated Download Date | 6/15/15 9:38 AM acid at room temperature.…”

Section: Gel Content Measurementmentioning

confidence: 99%

Electron beam modified nylon 6-clay nanocomposites: morphology and water absorption behavior

Chowdhury

Francis

Sarma

2014

Journal of Polymer Engineering

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Electron beam modified nylon 6-clay nanocomposites: morphology and water absorption behaviorAbstract: A series of nylon 6-clay nanocomposites were prepared by melt mixing, followed by electron beam (EB) crosslinking at various doses. Effects of crosslinking on clay dispersion, gel content, crystallinity and water absorption properties (hygrothermal) were studied. No change of the dispersion pattern of clay in nanocomposites was observed after crosslinking [from X-ray diffraction (XRD) and transmission electron microscopy (TEM)]. Gel content, i.e., degree of crosslinking is seen to keep on increasing with irradiation dose, although clays hinder crosslinking of polymers to some extent. Crystallinity of polymers is reduced after incorporation of clay as well as crosslinks. However, water absorption rate and maximum water content of nanocomposites are found to increase and saturation time to decrease with clay content. However, these changes become opposite after crosslinking of polymers. The water absorption for all samples is noticed to increase with temperature. Thus, EB crosslinking, without affecting the nanocomposite morphology, i.e., properties derived from nano interface generation, decreases the water absorption properties of nanocomposites.

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Radiation processing of Nylon 6 by e-beam for improved properties and performance

Cited by 65 publications

References 10 publications

Study on radiation aging of PA6/EPDM blends

Study on radiation aging of PA6/EPDM blends

Development of an Advanced Engineering Polymer from the Modification of Nylon 66 by e-Beam Irradiation

Electron beam modified nylon 6-clay nanocomposites: morphology and water absorption behavior

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