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Influence of the Processes Parameters on the Properties of The ...

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Abbreviati<strong>on</strong>s<br />

Classical Unit<br />

P c Critical Pressure bar<br />

P sat Saturati<strong>on</strong> Pressure bar<br />

T c<br />

Critical Temperature<br />

o C<br />

T sat<br />

Saturati<strong>on</strong> Temperature<br />

o C<br />

T g Glass transiti<strong>on</strong> temperature °C<br />

T m Melting temperature C<br />

t co Co-grinding time minute<br />

t sat Saturati<strong>on</strong> time minute<br />

dP/dt Depressurizati<strong>on</strong> rate bar/s<br />

m Melting enthalpy J.g -1<br />

<br />

m Melting enthalpy <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> totally cystallised polymer J.g -1<br />

c Crystallizati<strong>on</strong> enthalpy J.g -1<br />

<br />

Degree <str<strong>on</strong>g>of</str<strong>on</strong>g> crystallinity<br />

C p Variati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> heat capacity J.g -1 .mol -1<br />

D Diffusivity m 2 s -1<br />

D dg Desorpti<strong>on</strong> diffusi<strong>on</strong> coefficient at plasticized state m 2 s -1<br />

D dp Desorpti<strong>on</strong> diffusi<strong>on</strong> coefficient at glassy state m 2 s -1<br />

Z<br />

Zeldovich factor<br />

Intrinsic Viscosity dL.g -1<br />

inh Inherent Viscosity dL.g -1<br />

rel<br />

Relative Viscosity<br />

M n Number average mass molecular Dalt<strong>on</strong><br />

M w Weight average mass molecular Dalt<strong>on</strong><br />

M vis Viscosity average mass molecular Dalt<strong>on</strong><br />

K Mark Houwink’ c<strong>on</strong>stant dL.g -1<br />

a<br />

Mark Houwink’ c<strong>on</strong>stant<br />

Liquid-Solid C<strong>on</strong>tact Angle °<br />

γ L Surface Tensi<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> Liquid mJ/m 2<br />

γ S Surface Tensi<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> Solid mJ/m 2<br />

γ SL Solid-liquid interfacial tensi<strong>on</strong> mJ/m 2<br />

γ SV Solid-vapour interfacial tensi<strong>on</strong> mJ/m 2<br />

p<br />

γ S Polar comp<strong>on</strong>ent <str<strong>on</strong>g>of</str<strong>on</strong>g> surface energy mJ/m 2<br />

d<br />

γ S Dispersive comp<strong>on</strong>ent <str<strong>on</strong>g>of</str<strong>on</strong>g> surface energy mJ/m 2<br />

LW<br />

S Lifshitz–van der Waals comp<strong>on</strong>ent <str<strong>on</strong>g>of</str<strong>on</strong>g> surface energy mJ/m 2<br />

AB<br />

S Acid–Base comp<strong>on</strong>ent <str<strong>on</strong>g>of</str<strong>on</strong>g> surface energy mJ/m 2<br />

−<br />

γ S Basic Composnent <str<strong>on</strong>g>of</str<strong>on</strong>g> Surface mJ/m 2<br />

+<br />

γ S Acid Composnent <str<strong>on</strong>g>of</str<strong>on</strong>g> Surface mJ/m 2<br />

δ t Hildebrand’ solubility parameter (M Pa) 1/2<br />

δ d Dispersive Hansen’ solubility parameter (M Pa) 1/2<br />

δ H Hydrogen Hansen’ solubility parameter (M Pa) 1/2<br />

δp Polar Hansen’ solubility parameter (M Pa) 1/2<br />

Ø f Foam thickness mm<br />

Ø p Pellet thickness mm<br />

d f Foam diameter mm<br />

d p Pellet diameter mm<br />

m f Foam mass mg<br />

m p Pellet mass mg<br />

f<br />

Foam density<br />

viii

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