V 79 S

V 79 S

V 79 S is a high fluidity polypropylene homopolymer for the production of staple fibres with improved thermo-bonding ability for nonwoven fabrics.
The product exhibits excellent antigasfading properties. V 79 S offers an outstanding process stability and spinning behaviour on short-spinning lines and some specific long-spinning lines.
The thermal-bonding ability is high and allows the production of nonwoven fabrics with a higher tear strength or with a lower weight per m2 for the same strength. The fabrics made with V 79 S are characterised by softness, textile- like appearance and tear resistance.
The typical applications are coverstock for diapers, feminine care products and incontinence pads. Other applications are wipes, filters and fabrics for the clothing and furniture industry.


PROPERTIES
METHOD (b) UNIT TYPICAL VALUE (a)
Physical properties

Melt flow rate (230 °C, 2.16 kg)
Density
ISO 1133
ISO 1183
dg / min
g/cm3
21
0.9
Mechanical properties

Flexural modulus
Tensile strength yield
Elongation at yield
Izod Impact Strength (notched) at 23°C
Hardness Shore D
ISO 178
ISO R 527
ISO R 527 
ISO 180
ISO 868
N/mm2
N/mm2
%
kJ/m2
points
1550
35
13
3
72
Thermal properties

Vicat softening point (9.8 N)
H.D.T. (0.46 Mpa)
Accelerated oven ageing in air
(forced circulation) at 150 °C
ISO 306/A
ISO 75/B
ISO 4577
°C
°C
hours
153
118
120

V 79 S is suitable for food contact.

a) Values shown are averages and are not to be considered as product specification These values may shift slightly as additional data are accumlsted.
b) ISO test methods are the lates under the societys current procedures. All specimens are prepared by injection moulding.