pe c group
DESCRIPTION
Polymer and Composite Group PresentationTRANSCRIPT
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Università di CataniaUniversità di CataniaDipartimento di Metodologie Fisiche e Chimiche per l’IngegneriaDipartimento di Metodologie Fisiche e Chimiche per l’Ingegneria
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Group people;Group people;
Past and current research activities;Past and current research activities;
N jNew projects;
Equipments;
Conclusions.
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Prof A Recca (Full Professor);Prof.A.Recca (Full Professor);Ing.Gianluca Cicala (Assistant Professor);Ing Giuseppe Recca (Contractor);Ing.Giuseppe Recca (Contractor);Ing.Michele Costa (Collaborator)I Gi C i ldi (C ll b )Ing.Giuseppe Cristaldi (Collaborator);Dott. Vincenzo Asarisi (PhD Student);Ing.Ludovica Oliveri (PhD Student).
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Synthesis and characterization of aromaticpolymers;p y ;
Epoxy/Thermoplastic blends;Epoxy/Thermoplastic blends;
RTM technology;RTM technology;
Auxetic materialsAuxetic materials.
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Studies on the synthesis and thermal properties of CopolyethersulphonesStudies on the synthesis and thermal properties of Copolyethersulphones
X O SO2 O O O SO2 Xn
m
Molecular mass 5000-1200 DaMolecular mass 5000 1200 DaComposition ratio n:m 20:80;30:70;40:60;50:50;70:30;80:20Reactive groups X Cl; OH;NH2;Ph
Ammine pendant groups have been also added in some cases
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First step
Second step
Recca A. et al. (2006) Polymer. vol. 47, pp. 1861-1874.
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Transetherification
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Recca A. et al. (2006) Polymer. vol. 47, pp. 1861-1874.
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10310
50:50 PES:PEES Cl Ended @290°C
Pa-
s]
103
104
G'' [
Pa]
0,1 1 10 100102
η* [P
101
102
G',
G
,
ω [rad/sec]
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The study of epoxy/thermoplastic blends wasThe study of epoxy/thermoplastic blends wasstarted in cooperation with ICI Composites first andwas continued with Cytec Engineered Materials;y g
The aim was to develop thoughened thermosetblends which could fulfill the aerospacerequirement of composite primary and secondarystr ct resstructures;
The approach was to use low molecular weight PESThe approach was to use low molecular weight PEScopolymers bearing reactive and groups.
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SEM pictures from Arrows Rool Hoop
Cicala G., Lo Faro C, Internal Report Cytec, 2001.
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G.Cicala et al. unpubblished results
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30/70 PES/PEES 40/60 PES/PEES
60/40 PES/PEES SEM pictures of systemsWith low molar mass (~ 5-6k).
G.Cicala et al. unpubblished results
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DGEBA/TGAP/MDEA
G. Cicala et al. Journal Of Polymer Engineering vol. 23 (3), p.163, (2003)
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DGEBA/MDEA
101
102
103
-s]
No Modifier 15% C1 15% C2 15% C3 15% C4
10-1
100
η *
[Pa-
Modifier End Group Mn Gc [kJ/m2] Kc [Mpa m3/2]No Modifier ----------- ----------- 0 23 0 92
0 25 50 75 100 125 150
10-2
Time [min]
No Modifier ----------- ----------- 0,23 0,92C1 Amine 5 k 0,89 1,80C2 Amine 9 k 1,15 2,07C3 Chlorine 10 k 0,52 1,39C4 Hydroxyl 12 k 1,33 2,20
G.Cicala et al. Journal of Applied Polymer Science, Vol. 101, p.250 (2006)
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0.1
1DGEBA/DDS
Tan δ
No Modifier 15% wt Modifier 30% wt Modifier
0.1
1
10 DGEBA/MDEA
Tan δ
No Modifier 15% Wt Modifier 30% Wt Modifier
60 90 120 150 1800.01
Temperature [°C]60 120 180
0.01
Temperature [°C]
G.Cicala et al. Journal of Applied Polymer Science, Vol. 94, p.361 (2004)
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G.Cicala et al. Journal of Applied Polymer Science, Vol. 88, p.3021 (2003)
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G.Cicala et al. Journal of Applied Polymer Science, Vol. 89, p.268 (2003)
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Cod Tactix556 MY721 Modifiere 6 MY721 Modifier
1A Si No 0%
1B Si No 10%
1C Si No 30%1C Si No 30%
2A No Si 0%
2B No Si 10%
2C No Si 30%G.Cicala et al. Journal of Applied Polymer Science, Vol. 100, p.4880 (2006)
2C No Si 30%
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CHH2OCH3
CH2OH
CH OH CH2OH
OO
CH3
CH2
C2
H2
OCH3
OCH2OH
O
OCH2OH
CH3OCH2OH
OCH3
OCH2OH
CH2OH
Parametri Variati:
CH2
CH2
CH2 O O
CH3
CH2
CH2OCH3
C
CH2
O
O CH3
CH2OH
O CH2OH3
CH2OH
O
• Numero di generazione
• Gruppi superficialiCH2O 2
O
CH2
CH2
O
OCH2OH
O CH3
OCH2OH
O
OCH2OH
CH3
OCH2OH
CH2OH
• Gruppi superficiali
• Massa molare
CH3
H2CH2OH
OCH3
CH2OH
2
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DGEBA/DDS
HPB1: 3a GenerazioneHPB1: 3 Generazione
HPB2: 4a Generazione
A.Recca et al Polym. Eng.and Sci. (2005) 45(2), 225.
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DGEBA/DDS
A.Recca et al Polym. Eng.and Sci. (2005) 45(2), 225.
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Dynamic ramp
E= DGEBA/DETDAM= TGAP/DETDAH30= 3a generazione solo OHH30 3 generazione solo OHE1= 3a generazione 11 gruppi epossidici sostituiti
Testi isotermi
G.Cicala et al. Polym. Eng.and Sci (2006) 46(11), 1502.
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A. Recca et al Rivista Italiana di Compositi e Nanotecnologie (2006) 1, 65
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H311 Hyperbranched Polyester with high molarH311 Hyperbranched Polyester with high molar massH311 Liquid at room temperatureq p
DGEBA/DETDA
PCL= Policaprolactone
G.Cicala, G.Recca Polym. Eng.and Sci. (2008) in press
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G.Cicala, G.Recca, S.Carciotto, C.L.Restuccia Polym.Eng. Sci. (2008) accepted
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Several projects with companies:Several projects with companies:
◦ New materials and process for FRP pypes (HolsonNew materials and process for FRP pypes (HolsonImpianti SpA);
◦ Composite shielding for a robot for fire inspection(Euroconsult and Gesind).
◦ Housing prototype for helicopters (Agusta-Westland);Westland);
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Properties and performances of various hybrid glass/natural fibre composites for curved pipesG Cicala G Cristaldi G Recca G Ziegmann A ElSabbagh M Dickert Materials and Design in pressG.Cicala, G.Cristaldi, G.Recca,G.Ziegmann, A. ElSabbagh, M. Dickert , Materials and Design in press
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Property CHISMATECH DIAB Dynicell DIAB ProBalsa
DrapabilitDrapability +++ - - - - -Compressive
Strength++++ - -
Strength
Shear Strength ++++ - -Compressive + +++ -p
Modulus+ +++ -
Shear Modulus - - ++
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1 4
Nondimensional compressive strength
0.8
1
1.2
1.4
0
0.2
0.4
0.6
0
0.18
Nondimensional shear strength
0.08
0.1
0.12
0.14
0.16
0
0.02
0.04
0.06
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http://www.resintsicilia.net/notizie/premio-polymer-challenge-vince-il-team-catanese-chismatech
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Spin off proposed on RTM technology;Spin off proposed on RTM technology;
Start of operation 2009Start of operation 2009.
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DMTA Tritech2000 (all geometries);DMTA Tritech2000 (all geometries);ARES Rheometer;DSC 60 Schimadsu;DSC 60 Schimadsu;DTG Schimatsu;IR Perkin Elmer;IR Perkin Elmer;NMR 200MHz and 500MHz;Inston 4301;Inston 4301;RTM Hypaject MK III;Industrial oven (1*1m internal chamber);Industrial oven (1 1m internal chamber);Pump system for VARTM.