Buscar
Mostrando ítems 31-40 de 88
Análise de compósitos poliméricos com reforço de agregados
(Universidade Tecnológica Federal do ParanáMedianeiraBrasilTecnologia em Gestão AmbientalUTFPR, 2014-11-26)
This study aimed to evaluate the mechanical and flammability properties of composites of isotactic polypropylene strengthened with additives of manioc remains, sawdust and egg shells. The study included the characterization ...
Syndiotactic polypropylene as potential material for the preparation of porous membranes via thermally induced phase separation (TIPS) process
(2005)
This work reports the flat sheet membrane preparation from syndiotactic polypropylene (sPP) by thermally induced phase separation (TIPS) process. sPP obtained by polymerization using metallocene catalysts and isotactic ...
Propylene/1-Hexene Copolymer as a Taylor-made Polypropylene for Membrana Preparation via the Thermally Induced Phase Separation (TIPS) Process
(2006)
Poly[propylene‐co‐(1‐hexene)], one example of a “tailor‐made poly(propylene)”, was synthesized using an iso‐specific metallocene catalyst in order to study the influence of copolymer composition on the pore size of isotactic ...
Structural and thermal properties of polypropylene mesh used in treatment of stress urinary incontinence
(Wroclaw Univ TechnologyWroclawPolónia, 2009)
Polypropylene-(high density polyethylene) precipitation from stirred solutions
(1993)
The fast precipitation of mixtures of polypropylene (PP) with high density polyethylene (HDPE) from decalin solutions is affected by the stirring rate of the solutions. With fast stirring, two types of precipitates were ...
Modification of poly(propylene) through grafting with dimethyl itaconate in solution
(WILEY-V C H VERLAG GMBH, 1998-11)
Functionalization of isotactic poly(propylene) (PP) with dimethyl itaconate (DMI) as functional polar monomer using 2,5-dimethyl-2,5 -bis(tert-butylperoxy)hexane (L101) as radical initiator was carried out in both boiling ...
Modification of poly(propylene) through grafting with dimethyl itaconate in solution
(WILEY-V C H VERLAG GMBH, 1998)
Functionalization of isotactic poly(propylene) (PP) with dimethyl itaconate (DMI) as functional polar monomer using 2,5-dimethyl-2,5 -bis(tert-butylperoxy)hexane (L101) as radical initiator was carried out in both boiling ...
Structural and thermal properties of polypropylene mesh used in treatment of stress urinary incontinence
(Wroclaw Univ Technology, 2009-01-01)
Besides material biocompatibility, it is possible to infer that both vaginal and urethral erosion rates associated with sub-urethral synthetic slings may be related to the mechanical properties of the meshes and also to ...
Interfacial agent effect on rheological response and crystallite characteristics in germicidal polypropylene/titanium dioxide nanocomposites
(John Wiley & Sons Ltd, 2012-11-23)
Germicidal nanocomposites based on metallocene isotactic polypropylene (iPP) and titanium dioxide (TiO 2) nanoparticles have been prepared at a constant TiO 2 content of 2 wt%. Different quantities of a polypropylene wax ...
Propylene/1-hexene copolymer as a tailor-made poly(propylene) for membrane preparation via the thermally induced phase separation (TIPS) process
(WILEY-V C H VERLAG GMBH, 2006-02-10)
Poly[propylene-co-(1-hexene)], one example of a "tailor-made poly(propylene)", was synthesized using an iso-specific metallocene catalyst in order to study the influence of copolymer composition on the pore size of isotactic ...