Composite

Weight loss at different loads(×10-4 gm/m)

 

1 Kg

2 Kg

3 Kg

Phenol-formaldehyde

9.0

15.0

20.0

H. sabdariffa-r-PF

6.0

7.0

8.0

Hs-g-poly(AN)-r-PF

5.0

6.4

7.6

Hs-g-poly(AN-co-MA)-r-PF

4.0

5.0

6.0

Hs-g-poly(AN-co-AA)-r-PF

4.0

5.6

6.5

Hs-g-poly(AN-co-BA)-r-PF

3.5

4.0

6.0

Where -r-PF refers to reinforced Phenol-formaldehyde.
Table 4: Wear rate of graft copolymers reinforced P-F composites vis-à-vis P-F resin.