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Polymer and Composite Group Presentation
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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
Group people;Group people;
Past and current research activities;Past and current research activities;
N jNew projects;
Equipments;
Conclusions.
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).
Synthesis and characterization of aromaticpolymers;p y ;
Epoxy/Thermoplastic blends;Epoxy/Thermoplastic blends;
RTM technology;RTM technology;
Auxetic materialsAuxetic materials.
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
First step
Second step
Recca A. et al. (2006) Polymer. vol. 47, pp. 1861-1874.
Transetherification
Recca A. et al. (2006) Polymer. vol. 47, pp. 1861-1874.
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]
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.
SEM pictures from Arrows Rool Hoop
Cicala G., Lo Faro C, Internal Report Cytec, 2001.
G.Cicala et al. unpubblished results
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
DGEBA/TGAP/MDEA
G. Cicala et al. Journal Of Polymer Engineering vol. 23 (3), p.163, (2003)
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)
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)
G.Cicala et al. Journal of Applied Polymer Science, Vol. 88, p.3021 (2003)
G.Cicala et al. Journal of Applied Polymer Science, Vol. 89, p.268 (2003)
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%
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
DGEBA/DDS
HPB1: 3a GenerazioneHPB1: 3 Generazione
HPB2: 4a Generazione
A.Recca et al Polym. Eng.and Sci. (2005) 45(2), 225.
DGEBA/DDS
A.Recca et al Polym. Eng.and Sci. (2005) 45(2), 225.
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.
A. Recca et al Rivista Italiana di Compositi e Nanotecnologie (2006) 1, 65
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
G.Cicala, G.Recca, S.Carciotto, C.L.Restuccia Polym.Eng. Sci. (2008) accepted
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);
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
Property CHISMATECH DIAB Dynicell DIAB ProBalsa
DrapabilitDrapability +++ - - - - -Compressive
Strength++++ - -
Strength
Shear Strength ++++ - -Compressive + +++ -p
Modulus+ +++ -
Shear Modulus - - ++
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
http://www.resintsicilia.net/notizie/premio-polymer-challenge-vince-il-team-catanese-chismatech
Spin off proposed on RTM technology;Spin off proposed on RTM technology;
Start of operation 2009Start of operation 2009.
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.
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