Pe C Group

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]


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.

Pe C Group

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