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245	1	0	_aThe nature of adhesion in composites of modified cellulose fibers and polypropylene.
490	0		_vJournal of Applied Polymer Science, 42(3), p.609-620, 1991
520	3		_aCellulose fibers were surface modified with polypropylene-maleic anhydride copolymer. The physical properties of such fibers were characterized by contact angle measurements, and the chemical structure was identified with ESCA and FTIR. ESCA showed that the modifying agent was localized at the surface of the fibers. The modified fibers were compounded with polypropylene, and composites with various amount of fibers were manufactured by injection molding. All mechanical properties were improved when treated fibers were used. SEM showed improved dispersion, wetting of fibers, and adhesion. The nature of adhesion was studied using FTIR. It was found that the surface modifying agent is covalently bonded to the fibers through esterification. The degree of esterification is enhanced by activating the modifying agent before fiber treatment. This study has shown the effects of treatment conditions on activation of reactive species and chemical reaction between fiber and modifying agent. Moreover, a better understanding has been achieved of the nature of adhesion for the system.
650	1	4	_aCHEMICAL PROPERTIES
650	1	4	_aCONTACT ANGLE
650	1	4	_aINTERFACIAL PROPERTIES
650	1	4	_aPOLYPROPYLENE MALEIC ANHYDRIDE COPOLYMER
650	1	4	_aSURFACE MODIFYING AGENT
700	1	2	_aFelix, J. M.
700	1	2	_aGatenholm, P.
856	4	0	_uhttps://drive.google.com/file/d/1OrmOfNcoyBKR9-N_uw3J6PNMwN6C8qpy/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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