<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Teixeira, M J</style></author><author><style face="normal" font="default" size="100%">Fernandes, A C</style></author><author><style face="normal" font="default" size="100%">Saramago, B</style></author><author><style face="normal" font="default" size="100%">Rosa, M E</style></author><author><style face="normal" font="default" size="100%">Bordado, J C</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Influence of the wetting properties of polymeric adhesives on the mechanical behaviour of cork agglomerates</style></title><secondary-title><style face="normal" font="default" size="100%">JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">adhesives</style></keyword><keyword><style  face="normal" font="default" size="100%">cork agglometares</style></keyword><keyword><style  face="normal" font="default" size="100%">mechanical properties</style></keyword><keyword><style  face="normal" font="default" size="100%">WETTING</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><publisher><style face="normal" font="default" size="100%">BRILL ACADEMIC PUBLISHERS</style></publisher><pub-location><style face="normal" font="default" size="100%">PLANTIJNSTRAAT 2, P O BOX 9000, 2300 PA LEIDEN, NETHERLANDS</style></pub-location><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">1111-1127</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A series of adhesives, polyurethane prepolymers with alkane chains of different functionalities, were used in the production of cork agglomerates. The polymeric structure varied from long, linear chains in adhesive M1 (14% isocyanate groups) to short, branched chains in adhesive M4 (30% isocyanate groups). The wetting properties of the adhesives were studied through surface tension and contact angle measurements of the polymeric liquids deposited on cork substrates. The mechanical behaviour of the cork agglomerates was studied through compression and three-point bending tests, and the agglomerate structure was analysed by scanning electron microscopy (SEM). The relationship between the structural and wetting characteristics of the adhesives and the mechanical properties of the agglomerates was investigated. The experimental results indicate that it is the work of adhesion for the adhesive/cork system, and not only the contact angle, which determines the mechanical resistance of the cork agglomerate.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">GOMES, CMCPS</style></author><author><style face="normal" font="default" size="100%">Fernandes, A C</style></author><author><style face="normal" font="default" size="100%">DEALMEIDA, B D</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">THE SURFACE-TENSION OF CORK FROM CONTACT-ANGLE MEASUREMENTS</style></title><secondary-title><style face="normal" font="default" size="100%">JOURNAL OF COLLOID AND INTERFACE SCIENCE</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chemical complexity</style></keyword><keyword><style  face="normal" font="default" size="100%">geometric method</style></keyword><keyword><style  face="normal" font="default" size="100%">harmonic method</style></keyword><keyword><style  face="normal" font="default" size="100%">physical complexity</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year></dates><publisher><style face="normal" font="default" size="100%">ACADEMIC PRESS INC ELSEVIER SCIENCE</style></publisher><pub-location><style face="normal" font="default" size="100%">525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA</style></pub-location><volume><style face="normal" font="default" size="100%">156</style></volume><pages><style face="normal" font="default" size="100%">195-201</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The surface tension of cork is evaluated from contact angle measurements in cork-water-air and cork-methylene iodide-air systems, using the geometric and the harmonic mean methods. The contact angles were studied as a function of time and, in each case, the extrapolated value for t = 0 was used in the calculations to obtain γs. In spite of the chemical and physical complexity of cork, it was possible to obtain an average value for its surface tension γs = 32 ± 3 dyne cm-1 and polarity γPS/γS= 0.25. These values were compared to others obtained for several natural products such as wood or cellulose derivatives.</style></abstract><notes><style face="normal" font="default" size="100%">APS</style></notes><research-notes><style face="normal" font="default" size="100%">APS</style></research-notes></record></records></xml>