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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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1

Characterization of recycled thermoplastic polymers

Mohammadzadeh, Maryam January 2009 (has links)
In this study thermal and mechanical properties and chemical structure of four differentpolymers (PE, PP, polyASA and PVC) were investigated to find out if the recycled polymershad the same properties and can be used in the same applications as the virgins or not.FT-IR was used for investigation of chemical structure. TGA, DSC and thermal stability wereused to compare the thermal properties. Tensile test also used to examine the mechanicalproperties.All the tests showed the recycling process is not done completely well. The differences inresults for virgins and recycled samples are the reasons which verified this claim.The results obtained from this study clarifying that the amount of stabilizer in the recycledpolymers were considerably less than the amount in virgins, means that the company had notadded enough stabilizer during the recycling process.
polymers
recycling
stabilizer
FT-IR
TGA
DSC
tensile test
thermal stability
PE
PP
PVC
polyasa
Engineering and Technology
Teknik och teknologier

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