The effect of gamma irradiation in air and inert atmosphere on structure and properties of unfilled or glass fibre-reinforced polyamide 6

Porubská, Mária; Babić, D.; Janigová, Ivica; Šlouf, Miroslav; Jomová, Klaudia; Chodák, Ivan

doi:10.1007/s00289-015-1576-0

Cited by 11 publications

(15 citation statements)

References 13 publications

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“…A thorough comparison is provided by a recent study [31] examining PA-6 and GF-reinforced PA-6 (30% GF) irradiated with different γ-ray doses in the range of 0 to 500 kGy in either air or inert atmosphere. As displayed in Figure 14, it can be seen that the irradiation in air generates a small amount of gel in PA-6 only, whereas no gel is found in the PA-6/GF composite.…”

Section: Variations In Chemical Structurementioning

confidence: 99%

“…A comparison of DSC characteristics for PA-6 and composite PA-6/GF after being γ-irradiated in air or in inert [31] within 0 to 500 kGy can provide some framework observations. Similar to Section 2.2, both first and second heating runs give complementary information.…”

Section: Thermal Properties Related To Supermolecular Structurementioning

confidence: 99%

“…The development of mechanical properties of PAs irradiated with γ-rays is, as usual, linked to changes in the molecular and supermolecular characteristics. Evaluating the behavior of PA-6 and composite PA-6/GF γ-irradiated in air [31] concludes that the Young's modulus of PA-6 is soft decreasing with rising irradiation dose, whereas, for the nonirradiated composite PA-6/GF, the values are almost identical with the material irradiated with the highest dose (Figure 20).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Notched impact strength of PAs is often unfavorable property. An examination of this aspect was demonstrated by Charpy notched impact test being carried out for both PA-6 and PA-6/GF irradiated within 0 to 500 kGy in air [31]. The dependence of the impact strength on dose reveals a different behavior.…”

Section: Radiation Effects In Materialsmentioning

confidence: 99%

“…Variation of the second melting temperature of PA-6 and composite PA-6/GF (30%) with absorbed dose of γ-irradiation in air and inert atmosphere. Adapted from Porubská et al[31].…”

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Radiation Effects in Polyamides

Porubská¹

2016

Radiation Effects in Materials

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Polyamides PAs are largely used either as engineering materials in virgin form or as composites and a component of polymer blends. Various processes have been used to modify some properties of polymers to improve their utility. For this purpose, radiation technologies present clear, one-step procedures and offer improvement to the performance of PA materials. Irradiation by accelerated electron beams, γ-rays, and accelerated protons is applied on PAs, particularly PA-, as well as PA composites. Variations of important characteristics, such as chemical structure, supermolecular structure, mechanical properties, thermal resistance, water absorption, and other parameters, are analyzed involving results obtained by other authors. The application of irradiation on incompatible polymer blends involving PA is presented as well. The selection of radiation treatment of PAs has to be considered to obtain optimal results.

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Section: Variations In Chemical Structurementioning

confidence: 99%

Section: Thermal Properties Related To Supermolecular Structurementioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Radiation Effects In Materialsmentioning

confidence: 99%

“…Variation of the second melting temperature of PA-6 and composite PA-6/GF (30%) with absorbed dose of γ-irradiation in air and inert atmosphere. Adapted from Porubská et al[31].…”

mentioning

confidence: 99%

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