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

Result code in 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>

Alternative codes found

RIV/00216275:25310/20:39916728

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - 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

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Journal of Applied Polymer Science

ISSN

0021-8995

e-ISSN

—

Volume of the periodical

137

Issue of the periodical within the volume

37

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

49095

UT code for WoS article

000514467400001

EID of the result in the Scopus database

2-s2.0-85079801089