SciELO - Scientific Electronic Library Online

 
vol.30 issue1Hidrogeles de acrilamida/ácido acrílico y de acrilamida/poli(ácido acrílico): Estudio de su capacidad de remediación en efluentes industriales author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Revista Latinoamericana de Metalurgia y Materiales

Print version ISSN 0255-6952

Abstract

ALBANO, Carmen; PERERA, Rosestela  and  SILVA, Pedro. Effects of gamma radiation in polymer blends, in composites with micro and nano fillers and in functionalized polyolefins. Rev. LatinAm. Metal. Mater. [online]. 2010, vol.30, n.1, pp.3-27. ISSN 0255-6952.

Gamma radiation is commonly used in the sterilization of some medical articles made of plastics, because it decomposes the DNA molecules of living organisms. Nonetheless, this type of radiation can produce changes in the molecular structure of polymers, which result in changes in their macroscopic properties. In this review, some published works of our group regarding the changes in the mechanical and thermal behavior produced by irradiation of thermoplastics such as polyethylenes and polypropylenes; of composites of polyolefins with organic fillers such as sisal fiber and woodflour, or with hydroxyapatite and marine residues for biomedical applications, will be presented. Other topics included in this review are the effects produced by irradiation in blends of polymers with thermoplastic elastomers such as styrene-butylene-styrene (SBS); of blends of polypropylene with polystyrene, or polyethylene with polyamide 6 and with other polyolefins. Additionally, some works where gamma radiation was used to induce the functionalization of polyolefins will be described.

Keywords : Gamma radiation; polyolefins; blends; composites; mechanical and thermal behavior.

        · abstract in Spanish     · text in English