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Biomasa este un termen generic care cuprinde o ... - ICECHIM

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69containing arsenic species could be treated by adsorption on our new iron oxide basednanomaterial with the significant adsorption capacity (ca. 70 mg of As per g of sorbent).Presented research was supported by Science and Technology Assistance Agency <strong>un</strong>derthe contract No. APVT-51-017104 as well as by NATO Collaborative Linkage GrantEST.EAP.CLG 981103.2. POTENTIAL COATINGS APPLICATIONS FOR POLYMERS PREPAED BYATOM TRANSFER RADICAL POLYMERIZATIONSimion Coca, and Brian E. WoodworthPPG Industries, Inc., 4325 Rosanna Drive, Allison Park, PA, 15101 USAControlled/living polymerization processes offer many benefits over otherpolymerization processes including the ability to control the polymer molecular weight whileachieving a narrow molecular weight distribution. Another substantial benefit is being able tomanipulate the composition, f<strong>un</strong>ctionality and architecture of the polymer by this technique.The versatility of this method permits the formation of complicated structures such as block,gradient, comb and star copolymers. New materials, which are already being evaluated forcoatings include adhesion promoters, pigment dispersants, crater control agents and flowadditives for powder.3. MATERIAL COMPOZIT CU MULTIPLE UTILIZĂRIClaudia Niculescu, Florica IonescuInstitutul Naţional de Cercetare Dezvoltare pentru Textile şi Pielărie, Bucureşti,Str. Lucreţiu Pătrăşcanu nr. 16, sector 3Prezentarea se referă la <strong>un</strong> procedeu de obţinere a <strong>un</strong>ui material microcelular caşerat pe<strong>un</strong> suport textil, destinat realizării costumelor de scafandru, costumelor de salvare pe mare şiatelelor flexibile pentru imobilizarea luxaţiilor membrelor superioare şi inferioare.Procedeul de obţinere a plăcilor microcelulare are la bază <strong>un</strong> am<strong>este</strong>c cu cauciucpolicloroprenic modificat cu sulf şi viteză mică de cristalizare [1]. Placa microcelulară seobţine prin vulcanizarea am<strong>este</strong>cului în matriţă.în două trepte consecutive. Obţinerea plăcilorfinite la grosimea cerută de utilizarea finală se realizează prin spăltuire.Comportarea Neoprenului microcelular la diferite adancimi de scuf<strong>un</strong>dare s-a testat prinscaderea grosimii. Proba s-a efectuat in Barocamera. Rezultatele obtinuţe s<strong>un</strong>t redate în

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