Fernando Galembeck, Brazilian physical chemist (São Paulo 21 January 1943 -
Discovered osmosedimentation effect (1977),
centrifugal ultrafiltration, pressure-driven pervaporation (1990) and tangential
electrophoretic depolarization
Discovered that atmospheric water can acquire
electric charges and transfer them to other solid and liquid materials, a
phenomenon known as higroelectricity (2010)
Described a capacitor that loads spontaneously
when exposed to moist air
Demonstrated
that electrization in dielectric materials occurs faster when the atmosphere is
moist
Proposed
that atmosphere is a charge reservoir for dielectric materials
Demonstrated that the friction between
dielectric materials poses fixed and stable patterns of electric charges with a
non-uniform distribution in the two sides of material and in some cases the
main component of friction is only triboelectrization
Proposed a new model of electrization of
dielectrics
Demonstrated that water vapor adsorption on
insulating material surfaces or isolated metal leads to accumulation of
electric charges on them
Suggested new types of tensioactive chemicals
Proposed the development of new polymeric nanocomposites
and microcomposites
Discovered that latexes present complex
electric nanostructures that permitted the ionic amelioration of polymers
Demonstrated that one could create
submicrometric structures in a silica surface
deposited in silicon monocrystal
Demonstrated the role of electrostatic adhesion
in nanocomposites formation
SOME
CONTRIBUTIONS/BIBLIOGRAPHY
With L.C.
Soares, S. Bertazzo, T. Burgo & V. Baldim. A new mechanism for the
electrostatic charge build-up and dissipation in dielectrics. J. Braz
Chem Soc 19:277-286, 2008.
With R.F. Gouveia & C.A.R. Costa. Electrostatic patterning of a silica surface: a
new model for charge build-up on a dielectric solid. J. Phys. Chem. B 109(10):4631-7
(2005)
With I.R.
Jankov, R.N. Szente, I.D. Goldman, M.N. Carreno et al. Modification of
electrode materials for plasma torches. Surf Coat Techn 200(1-4):254-7 (2005)
With C.A.R. Costa, E. Rodovanovic, E. Teixeira-Neto &
M.C. Gonçalves. A procedure
for SPM tip recovery. Acta Microsc 12(1);71-75 (2003)
With A.O.
Cardoso. A new factor in colloidal stability: latex stabilization by polymer
swelling solvents. J. Coll. Interf Sci 182(2):614-6 (1996)
With R.A. Costa & L. Coltro. A staining procedure for the detection of
oxidized sites in polyolefins. Die Angew Makromol Chem 180:85-94 (1990)
With S.P.
Nunes & P. Alves Junior. A low-cost, small-scale polymer mixer. J. Chem
Educ 67 (11):982-3 (1990)
With M. do
C. Gonçalves, D. Windmoller & N.M. Erismann. Pressure-driven pervaporation.
Separ Sci Techn 25(9-10):1079-85 (1990)
With M.U.
Kleinke & O. Teschke. New porous PTFE separator for high-temperature water
electrolysers. Internat J. Hydrogen Energy 13(6):341-3 (1988)
With S.P.
Nunes & A.A. Winkler-Hechenleitner. A new centrifugal ultrafiltration
device. Separ Sci Techn 21(8):823-30 (1986)
With A.T.N.
Pires. Osmosedimentation methods: preparative and analytical apliccations. Separ
Purif Methods 15:97-126 (1986)
With C.L. Cesar, C.A.S. Lima, N.F. Leite, H. Vargas &
A.F. Rubira.. Optical
absorption measurements in a new composite material by combined photoacoustic
and beam transmission techniques. J. Appl. Phys 57(9):4431-6 (1985)
With O. Teschke.
A new type of separator for high-temperature water electrolyzers. J.
Electroch. Soc 130(1):33-6 (1983)
With C.C. Ghizoni, C.A. Ribeiro, H. Vargas & L.C.M.
Miranda. Characterization of a
new composite material Fe2O3 - impregnated poly (tetrafluoroethylene). Particle
size determination and photoacoustic spectroscopy. J. Appl. Polymer Science
25(7):1427-33, 1980
METHODS/PATENTS
With
S.P. Nunes. Dispositivo de ultrafiltração. 8.404.660 (1984)
Ultrafiltração em
múltiplo estágio (1984)
With E.C. Pinheiro &
P.P. Abreu Filho. Processo de fabricação de materiais magnéticos (1985)
Processo de fabricação de
materiais para despoluição de gases em escapamentos de autos. (1988)
With E.C.O. Lima. Processo
de obtenção de pigmentos brancos (PI: 9104581-9). 1991
Processo de obtenção de
partículas inorgânicas hidrofóbicas (PI: 9301191-1). 1993
With M.M. Beppu. Processo
de síntese de partículas ocas de fosfato de alumínio (PI: 9400746-2), 1994.
With E.F. de Souza. Processo
de obtenção de partículas ocas de um metafosfato duplo de alumínio e cálcio em
látex poliméricos (PI: 9500522-6) 1995
With E.F. de Souza. Processo
de síntese de partículas de fosfatos e polifosfatos de ferro (III), simples,
duplos ou múltiplos, não cristalinos (PI: 9700586-0) 1997
With E.F. de Souza &
M.C.V. M. da Silva. Processo de preparação de adesivos com alta resistência à
umidade, obtidos a partir de látex poliméricos e polifosfatos de cátions
polivalentes, e adesivos assim obtidos (PI: 9804318-8), 1998
With M.M. Rippel.
Processo de fabricação de adesivo para superfícies de vidros, cerâmicas,
alvenarias e plásticos à base de látex de borracha natural modificado por
polifosfato (PI: 0102823-5). 2001
With M. Braga. Processo
de coramento de látex para produção de poliestireno colorido (PI: 0201940-0), 2002
With M.F.B. Souza. Fabricação
triboquímica de nanocompósitos híbridos de poliester com argilas (PI:
0201487-4), 2002
Process to obtain an intercalated or exfoliated
polyester with clay hybrid nanocomposities materials (European Patent Office -
PI PCT/BR 03/00142). 2003
With M.M. Rippel, M.M. Murakami & L.F.
Valadares. Produção de nanocompósitos de termoplásticos ou elastômeros
com argilas intercaladas ou esfoliadas, a partir de latéxes (PI: 301.193-3), 2003
With J. de Brito. Produto
e processo de fabricação de um pigmento branco baseado na síntese de partículas
ocas de ortofosfato ou polifosfato de alumínio (PI: 0403713-8), 2004
With M.C.V.M. Silva. Processo
de fabricação de adesivos para metais, constituídos por resinas poliméricas
portadoras de nanodomínios diferenciados elétrica e mecanicamente, adesivos
assim obtidos e seu processo de aplicação (PI: 0404738-9), 2004
With M.C.V.M. Silva. Fabrication
of hot melt metal adhesives based on solid resins comprises emulsion
polymerization of acrylic, styrene, vinyl and diene monomers, for hot
application (BR200404738-A), 2004
With M.M. Murakami, J.P. Santos & H.C.
Schumacher. Método de preparação de látexes catiônicos a partir de
látexes aniônicos (PI0502764-0) 2005
With J. de Brito. Aluminum phosphate or
polyphosphate particles for use as pigments in paints and method of making same
(U.S. Pat. Appl. Publ. (2006), US 2006045831 A1 20060302 Application: US
2005-215312 20050830. Priority: BR 2004-3713 20040830).
With J. de Brito &
D.B.J.G. Fernando. Amorphous aluminum phosphate or polyphosphate,
useful in paint, and as ingredient in varnish, printing ink and plastic has
specified bulk density, and phosphorus to aluminum mole ratio (US2006045831-A1)
2006
With J. de Brito. Aluminum phosphate,
polyphosphate and metaphosphate particles and their use as pigments in paints
and method of making same. 20060045831 (2006)
With J. de Brito. Aluminum phosphate,
polyphosphate and metaphosphate particles and their use as pigments in paints
and method of making same. 20060211798 (2006)
With J. de Brito. Aluminum phosphate,
polyphosphate and metaphosphate particles and their use as pigments in paints
and method of making same. 20080038556 (2006)
With J. de Brito. Aluminum phosphate or
polyphosphate particles for use as pigments in paints and method of making
same. 20060045831 (2006)
With J. de Brito, R.
Rosseto & A.M.A. dos Santos. Making chemical composition
comprising amorphous aluminum phosphate, comprises combining aluminum phosphate
with sodium aluminate, and combining the obtained amorphous aluminum phosphate
with binding polymer to form chemical composition . US2011301272-A1
(2007)
With J. de Brito, R.
Rosseto & A.M.A. dos Santos. Making white pigment, e.g. used in
home paints, or vehicle paints, by reacting phosphoric acid, aluminum
hydroxide, sodium aluminate, and amorphous aluminum phosphate or polyphosphate
(US2008038556-A1), 2008
With J. de Brito, R.
Rosseto & A.M.A. dos Santos. Preparation of white amorphous
aluminum phosphate or polyphosphate-based pigment, e.g. for use in paints as
titanium oxide substitute, involves reacting phosphoric acid and aluminum
hydroxide, and neutralizing with sodium aluminate (WO2008017135-A1) 2008
With J. de Brito, R.
Rosseto & A.M.A. dos Santos. Preparation of aluminum phosphate or
polyphosphate particles. 20080038556 (2008)
With H.C. Schumacher & M.M. Rippel. Process
for obtaining solid nanocomposite, useful in e.g. gaskets and sealants,
comprises an electrolytic coagulation of polymer latex and an aqueous
dispersion containing non-modified solid layered silicate. WO2009015453-A2
(2009)
With M. Braga & C.A.S. Barbosa. Slurry,
useful in paint, varnish, printing ink, paper and plastic, comprises amorphous
aluminum phosphate particles and a dispersant e.g. borate dispersant or
silicate dispersant. WO2009100510-A2 (2009)
Making coating composition, useful in e.g.
paints, comprises combining phosphorous source, aluminum sulfate and alkaline
solution, drying the obtained precipitate, and combining the obtained aluminum
phosphate powder with binding polymer. US2010292382-A1 (2010)
Electrifying materials used for charging
batteries and capacitors, power distribution networks, electric motor and power
control circuits, involves keeping material electrically insulated from ground
or other objects connect to earth. WO2011072348-A1 (2010)
With M. Braga & R.E. Foscante. Anticorrosive coating composition, useful for
forming primer coating and mid-coating or top-coating, comprises a binding
polymer, aluminum phosphate e.g. amorphous aluminum phosphate, dispersed within
the binding polymer. US2012094130-A1 (2011)