On isotactic polypropylene annealing: Difference in final properties of neat and β-nucleated polypropylene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F22%3A63552298" target="_blank" >RIV/70883521:28110/22:63552298 - isvavai.cz</a>
Result on the web
<a href="http://www.expresspolymlett.com/search.php" target="_blank" >http://www.expresspolymlett.com/search.php</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3144/expresspolymlett.2022.34" target="_blank" >10.3144/expresspolymlett.2022.34</a>
Alternative languages
Result language
angličtina
Original language name
On isotactic polypropylene annealing: Difference in final properties of neat and β-nucleated polypropylene
Original language description
The effect of isotactic polypropylene (iPP) molecular weight and thermal treatment on final crystalline structure and mechanical properties were investigated by X-ray scattering, differential scanning calorimetry, tensile testing, and scanning electron microscopy. Neat and β-nucleated isotactic polypropylene were subjected to annealing above melting temperature of β-phase but still below melting temperature of α-phase, which caused both improvement of α crystallites and β to α-recrystallization, in case of nucleated material. As a consequence, the final mechanical properties like tensile strength and stiffness improved significantly. The increase is much more pronounced in the case of β to α-transformed materials with lower molecular weight. This phenomenon can also be attributed to the partial preservation of the specific structure of the amorphous phase present in β-nucleated polypropylene, in addition to the perfection of the crystalline phase. The amorphous phase comprises many interconnecting chains passing through several lamellae whereby providing a long-range effect.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/EF16_027%2F0008464" target="_blank" >EF16_027/0008464: International mobility of UTB researchers in Zlín</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Express Polymer Letters
ISSN
1788-618X
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
5
Country of publishing house
HU - HUNGARY
Number of pages
12
Pages from-to
453-464
UT code for WoS article
000766639800002
EID of the result in the Scopus database
2-s2.0-85126032696