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Electron beam damage of some chlorine containing polymers and PVC blends
-
- Lindberg, Henrik (author)
- Luleå tekniska universitet
-
- Vesely, D. (author)
- Brunel University
-
- Bertilsson, H.E. (author)
- Chalmers University of Technology
- (creator_code:org_t)
- 1989
- 1989
- English.
- In: Journal of Materials Science. - 0022-2461 .- 1573-4803. ; 24:8, s. 2825-2832
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The electron beam damage of PVC, PVDC, chlorinated PE, chlorosulphonated PE (Hypalon) and chloroendic acid polyester has been studied by chlorine loss and mass loss measurements. The mass loss decay curves have been recalculated for true mass loss and correlated with the X-ray measurements of chlorine loss. It is shown that the major mechanism of degradation in these polymers is dehydrochlorination. The rate of dehydrochlorination is dependent on the chemical structure of the polymer, and in particular on the availability of hydrogen for HCl formation. However, in case of chloroendic acid polyester, more complicated volatile chlorinated compounds are also formed. The dehydrochlorination rate and mass loss of miscible PVC blends, namely PVC with organotin stabilizer, PMMA, PCL and SAN have been studied. The rate of chlorine loss from PVC was found to be unchanged for all blends except for PMMA and PCL, where it slightly increased due to the chemical reaction between the molecular fragments of both polymers. The differences between the thermal degradation and electron beam damage are also discussed.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Polymera konstruktionsmaterial
- Polymeric Composite Materials
Publication and Content Type
- ref (subject category)
- art (subject category)
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