Optimization of polyethylene binder for heterogeneous ion exchange membrane manufacture to improve its mechanical stability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F18%3AN0000045" target="_blank" >RIV/28676092:_____/18:N0000045 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/app.46415" target="_blank" >https://onlinelibrary.wiley.com/doi/abs/10.1002/app.46415</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/app.46415" target="_blank" >10.1002/app.46415</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of polyethylene binder for heterogeneous ion exchange membrane manufacture to improve its mechanical stability

Popis výsledku v původním jazyce

Aim of this work is to propose polymer mixture for heterogeneous ion exchange membrane manufacture to improve membrane mechanical stability. Polyethylene binders (HDPE, LLDPE, mLLDPE and their mixtures in various ratios) with ion exchange resins were homogenized and extruded into membrane sheets. Processability of mixtures was considered using the data from extruder including torque and pressure before the extrusion die. Membrane samples were subjected to tensile deformation tests and tests of tear resistance and membrane electrochemical properties such as electrical resistance and permselectivity were measured. No significant variations in electrochemical properties of prepared membranes were observed, except of membrane made using pure mLLDPE as a binder. Surface resistance of this membrane was the highest (almost 8 Ω cm2) and as well the permselectivity (approx. 92 %). The lowest surface resistance (lower than 3 Ω cm2) was determined for the membrane made using pure LLDPE as a binder. Therefore, taking into account the most important mechanical and processing characteristics, such as pressure before extrusion die, tensile strength, modulus of elasticity and tear resistance assigning all these properties the same priority, membrane with the best combination of properties was prepared using the mixture of HDPE:LLDPE in the ratio of 80:20 as the binder.

Název v anglickém jazyce

Optimization of polyethylene binder for heterogeneous ion exchange membrane manufacture to improve its mechanical stability

Popis výsledku anglicky

Aim of this work is to propose polymer mixture for heterogeneous ion exchange membrane manufacture to improve membrane mechanical stability. Polyethylene binders (HDPE, LLDPE, mLLDPE and their mixtures in various ratios) with ion exchange resins were homogenized and extruded into membrane sheets. Processability of mixtures was considered using the data from extruder including torque and pressure before the extrusion die. Membrane samples were subjected to tensile deformation tests and tests of tear resistance and membrane electrochemical properties such as electrical resistance and permselectivity were measured. No significant variations in electrochemical properties of prepared membranes were observed, except of membrane made using pure mLLDPE as a binder. Surface resistance of this membrane was the highest (almost 8 Ω cm2) and as well the permselectivity (approx. 92 %). The lowest surface resistance (lower than 3 Ω cm2) was determined for the membrane made using pure LLDPE as a binder. Therefore, taking into account the most important mechanical and processing characteristics, such as pressure before extrusion die, tensile strength, modulus of elasticity and tear resistance assigning all these properties the same priority, membrane with the best combination of properties was prepared using the mixture of HDPE:LLDPE in the ratio of 80:20 as the binder.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/LO1418" target="_blank" >LO1418: Progresivní rozvoj Membránového inovačního centra</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Polymer Science

ISSN

1097-4628

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

135

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

46415

Kód UT WoS článku

000429419100013

EID výsledku v databázi Scopus

2-s2.0-85043400872