Process-dependent structural and deformation properties of extrusion blow molding parts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523521" target="_blank" >RIV/70883521:28110/19:63523521 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/19:63523521

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142941819302193?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142941819302193?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymertesting.2019.105903" target="_blank" >10.1016/j.polymertesting.2019.105903</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Process-dependent structural and deformation properties of extrusion blow molding parts

Popis výsledku v původním jazyce

Extrusion blow molding (EBM)is a manufacturing technique to produce plastic hollow containers. Requirements on complex geometries are steadily increasing, especially in packaging and automotive, although some issues of EBM remain unclear. Consequently, EBM parts are still over-dimensioned. Thus, processing-structure-properties relationship is investigated via dynamic mechanical analysis and differential scanning calorimetry. Storage modulus and crystallinity data were obtained at various flow directions, draw ratios and mold temperatures. The data evaluation of the influence of these three parameters on the storage modulus proved as statistically significant, process-dependent, for specific measuring temperature ranges. Relaxation processes during sample storage and elevated measuring temperatures can explain the process independency for the flow direction and the draw ratio for specific measuring temperature ranges from which the mold temperature was unaffected. Mold temperature and draw ratio had a significant influence on crystallinity of EBM containers; higher mold temperature and draw ratio caused higher crystallinities due to the flow-induced orientation.

Název v anglickém jazyce

Process-dependent structural and deformation properties of extrusion blow molding parts

Popis výsledku anglicky

Extrusion blow molding (EBM)is a manufacturing technique to produce plastic hollow containers. Requirements on complex geometries are steadily increasing, especially in packaging and automotive, although some issues of EBM remain unclear. Consequently, EBM parts are still over-dimensioned. Thus, processing-structure-properties relationship is investigated via dynamic mechanical analysis and differential scanning calorimetry. Storage modulus and crystallinity data were obtained at various flow directions, draw ratios and mold temperatures. The data evaluation of the influence of these three parameters on the storage modulus proved as statistically significant, process-dependent, for specific measuring temperature ranges. Relaxation processes during sample storage and elevated measuring temperatures can explain the process independency for the flow direction and the draw ratio for specific measuring temperature ranges from which the mold temperature was unaffected. Mold temperature and draw ratio had a significant influence on crystallinity of EBM containers; higher mold temperature and draw ratio caused higher crystallinities due to the flow-induced orientation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1504" target="_blank" >LO1504: Centrum polymerních systémů plus</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Testing

ISSN

0142-9418

e-ISSN

—

Svazek periodika

77

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000487002700038

EID výsledku v databázi Scopus

2-s2.0-85065780116