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Degradation by ionizing radiation

When PTFE is degraded by ionizing radiation under vacuum, the amount of toxic compounds, such as HE and CO, decreases. The threshold value of absorbed dose for vacuum degradation of PTFE was found to be about 50-60 kCy.i ... [Pg.99]

The DP of polymers formed by ionizing radiations is more difficult to interpret than that of polymers formed by chemical initiation, because after quite a low degree of conversion the degradation of the polymers by the radiation may become significant (Stannett et al. 1964 Deffieux et al. 1982). It is not known to what extent this fragmentation and to... [Pg.374]

Fluorocarbon elastomers, particularly copolymers of HFP and VDF, are cross-linked by low-level y radiation (up to 20 Mrad) in the same fashion as PVDF. Radiation degradation of a VDF-HFP copolymer was studied by Zhong and Sun.35 Their finding was that there is a linear relationship between the dose and the weight loss of the polymer. Fluorocarbon elastomers based on copolymers of IFF and propylene were found to be more resistant to y radiation than Viton elastomers.36 Cross-linking of VDF-HFP, VDF-TFE, and tetrafluoroethylene-propylene (TFE/P) copolymers as well as of terpolymers VDF-HFP-TFE by ionizing radiation (gamma... [Pg.143]

Crosslinking and degradation In plastics under irradiation by ionizing radiation (under inert conditions) [710]... [Pg.539]

PVDF can be crosslinked by ionizing radiation lesulling in an inoease in h tempaatme modulus and very little degradation. [Pg.755]

Films Degradation and Cross-Linking of Polyethylene Films by Ionizing Radiation Pulsed Radiolyses of Pyrene-Doped PE Bombardment ofPyrene-Doped Polyethylene Films with Neutrons, Electrons, Protons, and Alpha Particles ... [Pg.78]

See other pages where Degradation by ionizing radiation is mentioned: [Pg.361]    [Pg.382]    [Pg.361]    [Pg.25]    [Pg.116]    [Pg.306]    [Pg.162]    [Pg.104]    [Pg.361]    [Pg.382]    [Pg.361]    [Pg.25]    [Pg.116]    [Pg.306]    [Pg.162]    [Pg.104]    [Pg.495]    [Pg.493]    [Pg.267]    [Pg.266]    [Pg.374]    [Pg.377]    [Pg.378]    [Pg.382]    [Pg.384]    [Pg.99]    [Pg.978]    [Pg.236]    [Pg.288]    [Pg.176]    [Pg.263]    [Pg.57]    [Pg.583]    [Pg.225]    [Pg.201]    [Pg.63]    [Pg.91]    [Pg.285]    [Pg.111]    [Pg.495]    [Pg.334]    [Pg.455]    [Pg.569]    [Pg.1]    [Pg.677]    [Pg.3834]    [Pg.124]    [Pg.189]    [Pg.235]    [Pg.208]    [Pg.812]   
See also in sourсe #XX -- [ Pg.677 ]



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By Degradation

Degradation by radiation

Ionization, by radiation

Ionizing radiation

Radiation degradation

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