|
Results of Experiment
1. Frictional Force (F) and Friction Cefficient()
|
the NO.
|
1
|
2
|
3
|
4
|
5
|
6
|
|
F/gf
|
49.4
|
50.4
|
35.4
|
35.4
|
54.4
|
55.4
|
|
¦
|
0.394
|
0.404
|
0.282
|
0.282.
|
0.434
|
0.442
|
|
the NO.
|
7
|
8
|
9
|
10
|
11
|
12
|
|
F/gf
|
35.4
|
37.4
|
37.4
|
40.4
|
36.4
|
36.4
|
|
¦
|
0.282
|
0.298
|
0.298
|
0.332
|
0.29
|
0.29
|
Based on the above table, the friction coefficients of these fabrics can
be arranged as follows:
silk>soybean/polyurethane fiber>cotton>soybean fiber
Then there comes the conclusion: the friction coefficient of soybean fiber
is the lowest, so it feels best.
2. Fabric Samples and Their Relative Parameters
|
NO.
|
Fabric
sample
|
Components
|
Thickness
(mm)
|
Wieght/m2
(g/m2)
|
|
1
|
plain silk fabric
|
silk
|
0.37
|
120.30
|
|
2
|
plain silk fabric
|
silk
|
0.38
|
141.20
|
|
3
|
satin silk fabric
|
soybean
fiber
|
0.39
|
108.00
|
|
4
|
fleece fabric
|
soybean
fiber
|
0.60
|
105.40
|
|
5
|
twilled silk fabric
|
silk
|
0.53
|
138.40
|
|
6
|
links-links silk fabric
|
silk
|
0.69
|
147.20
|
|
7
|
single jersey
|
soybean
fiber
|
0.46
|
111.20
|
|
8
|
single jersey
|
soybean/polyurethane
fiber
|
0.55
|
136.70
|
|
9
|
rib fabric
|
soybean
fiber
|
0.87
|
202.80
|
|
10
|
rib fabric
|
silk
|
1.05
|
240.40
|
|
11
|
single jersey
|
cotton
|
0.45
|
134.70
|
|
12
|
single jersey
|
cotton
|
0.53
|
112.40
|
3.Materials Needed
a piece of copper; fabric sample; a flat table; a pulley; a string for draught;
a plate
|
|