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Embrittlement carbonyl index

Concentration Carbonyl index Time to mols / 100 g (before exposure) embrittlement (hrs)... [Pg.346]

FIGURE 32. Correlation between embrittlement time (in hours) and carbonyl index for poly(ethylene)... [Pg.277]

Andrady, A.L., Pegram, J.E., and Tropsha, Y., 1993, Changes in carbonyl index and average molecular weight on embrittlement of enhanced-photodegradable polyethylenes. [Pg.283]

Fig. 3.20. Relationship between carbonyl index (cf. section 10.17.1.7) and embrittlement time (cf. section 10.17.1.7) of high density polyethylene [1918]. (Reprinted with permission from [1918]. Copyright (1976) American Chemical Society.)... Fig. 3.20. Relationship between carbonyl index (cf. section 10.17.1.7) and embrittlement time (cf. section 10.17.1.7) of high density polyethylene [1918]. (Reprinted with permission from [1918]. Copyright (1976) American Chemical Society.)...
The carbonyl index (measured at 1720-1710/cm) is commonly used for the determination of embrittlement time (mainly in polyolefins), i.e. the time (in hours) to reach 0.06 carbonyl units from the plot of absorbance of the carbonyl groups versus irradiation time [45] ... [Pg.513]

HDPE carrier bag/TDPA outdoor exposure carbonyl index = 0.31 after 59 days (with no TDPA, no embrittlement after outdoor exposure) ... [Pg.65]

See other pages where Embrittlement carbonyl index is mentioned: [Pg.63]    [Pg.276]    [Pg.66]   
See also in sourсe #XX -- [ Pg.513 ]



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