The document summarizes the activities of RadTech South America in April 2014. It discusses RadTech's participation at the Paint & Pintura Forum in Criciúma, Brazil where their lecture on UV curing technology drew interest. It also describes their successful basic introductory course on radiation curing technology held in Sao Paulo for almost 30 professionals. Participants gave the course an excellent rating and provided feedback on future events. Finally, it advertises a technical article on accelerated drying of water-dispersible polyurethane blends.

1. RadTech South America News
April 2014
1
Par&cipa&on
at
the
Paint
&
Pintura
Forum
in
Criciúma
We
a%ended
the
forum
in
Criciúma
and
our
lecture
drew
the
a%en5on
of
par5cipants
not
only
due
to
the
theme
of
technology
but
also
due
to
the
appeal
of
sustainability
and
innova5on.
Once
again
we
had
a
very
big
par5cipa5on
of
the
professionals
from
the
South
of
Brazil
during
the
event
and
RadTech
brought
again
the
most
recent
news
and
trends
of
UV
Curing
technology
to
the
market.
Next
month
we
will
be
a%ending
the
event
in
Londrina
-­‐
PR.
Chair
Director
Maria
Cris5na
Kobal
Campos
de
Carvalho
Administra&ve
Director
José
Mauro
Vieira
Financial
Director
Percy
Freytag
Technical
Director
Alberto
Matera
Communica&on
&
Mkt
Director
Rafael
Bueno
Audit
Commi>ee
Vivian
Clauge
Jorge
Sato
Oper&onal
Manager
Roberto
Caforio

2. 2
Basic
Course
in
April
2014
Great
success
with
almost
30
professionals
par&cipa&ng
We
held
our
basic
introductory
course
in
radia5on
curing
technology
at
our
headquarters
at
IPEN
-­‐
USP
in
Sao
Paulo
last
April
and
we
count
on
the
par5cipa5on
of
many
professionals.
In
addi5on
to
the
technical
sessions
we
also
had
the
opportunity
of
prac5cal
demonstra5ons
in
the
laboratory
of
UV
curing
from
IPEN.
We
had
demonstra5ons
with
UV,
LED
UV
and
Radiometry.
As
a
result
of
this
course
we
had
an
evalua5on
by
par5cipants
as
EXCELLENT
by
more
than
90%
of
the
total.
Besides
this
we
had
a
survey
of
what
the
professionals
want
to
see
in
the
upcoming
events
of
RadTech
South
America
during
2014.

3. 3
Technical
Ar&cles
and
News
RADTECH SOUTH AMERICA
Avenida Professor Lineu Prestes, 2.242 – Sala 25
Prédio CTR – IPEN
Cidade Universitária – São Paulo – SP – Brasil
Tel. / Fax : + 55 (11) 3034-0078
Email : info@radtechsouthamerica.org.br
Web site : www.radtechsouthamerica.org.br
Curta nossa página no Facebook
www.facebook.com/radtechsouthamerica
Accelerated
drying
of
water-­‐dispersible
polyurethane
blends
Mixtures
of
water-­‐dispersible
isocyanate
and
polyol-­‐terminated
oligomers
were
blended
with
methacrylate-­‐terminated
urethanes
and
a
water-­‐
dispersible
photoini5ator
to
accelerate
the
dry
5me
of
thin
polymer
films.
Thermomechanical
proper5es
of
the
polyurethane
blends
were
measured
using
dynamic
mechanical
analysis.
Kine5cs
of
the
ultraviolet-­‐ini5ated
radical
polymeriza5on
reac5on
and
the
polyol/isocyanate
addi5on
reac5on
were
monitored
using
a%enuated
total
reflectance.
For
more
informa5on
on
this
ar5cle
please
visit
the
link
below
:
h%p://www.specialchem4coa5ngs.com/