Joanna Liszkowska, B. Czupryński, Joanna Paciorek-Sadowska
Oct 1, 2015
Citations
0
Influential Citations
4
Citations
Journal
Journal of Polymer Engineering
Abstract
Abstract A new compound was synthesized from 2-hydroxy-1,2,3-propanetricarboxylic acid (citric acid) and diethylene glycol (DEG). Compound, tris(hydroxydietylene)-2-hydroxypropane-1,2,3-tricarboxylate (THT) rated properties in terms of suitability for the rigid polyurethane-polyisocyanurate (PUR-PIR). Rated properties of THT eg., acid number, density, pH, solubility. The resulting product was characterized by hydroxyl number 405.2 mg KOH/g and viscosity 4879.7 mPa·s. Compound used to foams in amounts of from 0.1 equivalents to 0.5 equivalents instead of Rokopol RF551. The results of rigid foams showed that the amount of THT in the foam significantly affects the compressive strength of foams. Its amount does not affect the apparent density of foam, retention and thermal conductivity. The foams are characterized by small values of fragility.