Effect of the pigment concentration on the dimensional stability and the melt flow index of polycarbonate

Kód výsledku v IS VaVaI

RIV/70883521:28110/19:63523580 - isvavai.cz

Nalezeny alternativní kódy

RIV/70883521:28140/19:63523580

Výsledek na webu

https://arl.ujep.cz/arl-ujep/cs/detail-ujep_us_cat-0273415-Effect-of-the-pigment-concentration-on-the-dimensional-stability-and-the-melt-flow-index-of-polycarb/

DOI - Digital Object Identifier

10.21062/ujep/304.2019/a/1213-2489/mt/19/3/404

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of the pigment concentration on the dimensional stability and the melt flow index of polycarbonate

Popis výsledku v původním jazyce

This study is focused on the effect of pigments on polycarbonate (PC), especially the dimensional stability and flow properties of this material. This polymer is commonly used in the plastics industry and the most common processing of this polymer is injection molding technology. Three different pigments made by Lifocolor company were selected for PC staining. In addition, six different concentrations of aforementioned pigments were used. It is worthwhile to note that the pigments in the polymer matrix acted as a filler. Just like fillers, the pigments also influence the shrinkage of the polymer in both the main and secondary directions. The paper also deals with the effect of pigment concentration on the melt index (MFI). It was shown that the presence of pigments reduces the thermal mobility of the macromolecular chain. Melt flow index changes were also directly tied to the changes of the viscosity, which was also affected by the pigments. It can be expected that the viscosity might not remain the same even at varying shear rates.

Název v anglickém jazyce

Effect of the pigment concentration on the dimensional stability and the melt flow index of polycarbonate

Popis výsledku anglicky

This study is focused on the effect of pigments on polycarbonate (PC), especially the dimensional stability and flow properties of this material. This polymer is commonly used in the plastics industry and the most common processing of this polymer is injection molding technology. Three different pigments made by Lifocolor company were selected for PC staining. In addition, six different concentrations of aforementioned pigments were used. It is worthwhile to note that the pigments in the polymer matrix acted as a filler. Just like fillers, the pigments also influence the shrinkage of the polymer in both the main and secondary directions. The paper also deals with the effect of pigment concentration on the melt index (MFI). It was shown that the presence of pigments reduces the thermal mobility of the macromolecular chain. Melt flow index changes were also directly tied to the changes of the viscosity, which was also affected by the pigments. It can be expected that the viscosity might not remain the same even at varying shear rates.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

LO1303: Podpora udržitelnosti a rozvoje Centra bezpečnostních, informačních a pokročilých technologií (CEBIA-Tech)

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

—

Svazek periodika

19

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

404-408

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85069826869