conclusion

نویسندگان

محمد علی قدسی

چکیده

la mouillabilite est un phenomene pui depend d'un grand nombre de facteurs. chacun de ces facteurs , qu'il soit d'order physipue ou chimipue, joue un grand role. on peut distinguer : 1 - la granulometrie du solide. elle est en relation avec la surface sped fipue des solides . plus cette surface est en grande, plus le mouillage est fort. 2 - la temperature : l'elevation de la temperature au cours du mouillage, favorise ce phenomene . cependant, il ne faut pas depasser une certaine limite. 3 - la polarite : ii s'egit de l'existence de radicaux ou de groupementes polaires a la surface du solide ou dans la molecule du liant . ces groupes facilitent et aecelerent la mouillabilite 4 - l'affinite chimique : l'affinite chimique entre la macromolecule et le solide joue un grand role dans le mouillage. dn doit aussi mentionner la liaison chimique dans ce chapitre 5 - le degre de polymerisation : bien pue le degre de polymerisation soit directement proportionnel avec i'adhesion mais inversement proportionnel avec la mouillabilite. la mouillabilite est meilleure avec des polymeres possedant un degre de polymerisation assez faible . un nombre relativement eleve de facteurs j oue un role dans le phenomene

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جلد ۲۴، شماره ۱۲، صفحات ۰-۰

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