Brake Linings with Phosphorylated CNSL Resin

1
Process Developed
Brake Linings with Phosphorylated CNSL Resin
Property
Value Tensile strength (MN/m2)
17- 24 Impact strength (ft-lb)
1.2-1.5 Water absorption (96hr),
2.9-3.5 Acetone extract
3.0-4.0 Abrasion loss(g/mm2)
1.12x10-4 - 6.2x10-5
Average coefficient of friction(dry) 0.335-
0.472 Average coefficient of friction(wet)
0.335-0.419 Fade, dry
19- 40 Recovery, dry
87-115 Wear loss,
(cm3/kwh) 0.691-
1.479 Density,(g/cc)
1.48-1.51 Maximum variation in the
initial test for coefficient of friction,
3-11
CNSL resins are known to provide better fade and
quieter braking action in brake lining materials
PCNSL Resin gave the lowest ever reported value
of 19 fade. PCNSL can substitute PF totally in
brake linings and meet all the specifications. As
wear rate is much lower, PCNSL based brake
linings are expected to last longer.
Tested results from Automotive Research
Association of India, Pune