Recycling of rigid polyurethane foam: Micro‐milled powder used as active filler in polyurethane adhesives

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F20%3A00522370" target="_blank" >RIV/68378297:_____/20:00522370 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/20:39916728

Výsledek na webu

<a href="https://doi.org/10.1002/app.49095" target="_blank" >https://doi.org/10.1002/app.49095</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/app.49095" target="_blank" >10.1002/app.49095</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Recycling of rigid polyurethane foam: Micro‐milled powder used as active filler in polyurethane adhesives

Popis výsledku v původním jazyce

Rigid polyurethane (PUR) foams are widely used as heat insulation material in construction industry or for electronic appliances manufacturing. After finishing their life‐time, it is necessary to eliminate foam wastes. The aim of this study was to prepare a pair of industrial PUR adhesives of medium viscosity containing recycled rigid PUR foam. Three methods of milling were tested: knife‐milling, two‐roll milling, and ball‐milling. Only two‐roll milling gives the PUR micro‐powder usable for following adhesives modification. The micro‐powder was used as passive filler in PUR adhesives and potential reactivity for polyol pack replacement was studied. Hydroxyl and amine numbers were determined in mixture with virgin polyol. One‐component PUR prepolymer adhesive was prepared using various dosages of the micro powder and the tensile strength of bound wood was measured. As additional parameters, also free film adhesive mechanical parameters were tested and particle size distribution of the micro powder was analyzed. Two adhesive formulations were prepared for independent evaluation of the micro powder reactivity. The results showed growing of the mechanical strength of wood bonding with growing dosage of the micro powder.

Název v anglickém jazyce

Recycling of rigid polyurethane foam: Micro‐milled powder used as active filler in polyurethane adhesives

Popis výsledku anglicky

Rigid polyurethane (PUR) foams are widely used as heat insulation material in construction industry or for electronic appliances manufacturing. After finishing their life‐time, it is necessary to eliminate foam wastes. The aim of this study was to prepare a pair of industrial PUR adhesives of medium viscosity containing recycled rigid PUR foam. Three methods of milling were tested: knife‐milling, two‐roll milling, and ball‐milling. Only two‐roll milling gives the PUR micro‐powder usable for following adhesives modification. The micro‐powder was used as passive filler in PUR adhesives and potential reactivity for polyol pack replacement was studied. Hydroxyl and amine numbers were determined in mixture with virgin polyol. One‐component PUR prepolymer adhesive was prepared using various dosages of the micro powder and the tensile strength of bound wood was measured. As additional parameters, also free film adhesive mechanical parameters were tested and particle size distribution of the micro powder was analyzed. Two adhesive formulations were prepared for independent evaluation of the micro powder reactivity. The results showed growing of the mechanical strength of wood bonding with growing dosage of the micro powder.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Polymer Science

ISSN

0021-8995

e-ISSN

—

Svazek periodika

137

Číslo periodika v rámci svazku

37

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

49095

Kód UT WoS článku

000514467400001

EID výsledku v databázi Scopus

2-s2.0-85079801089