issn: 2278-6252 coating of nonwoven materials for ... - Garph.co.uk
issn: 2278-6252 coating of nonwoven materials for ... - Garph.co.uk
issn: 2278-6252 coating of nonwoven materials for ... - Garph.co.uk
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Bursting strength (bar)<br />
International Journal <strong>of</strong> Advanced Research in<br />
Engineering and Applied Sciences ISSN: <strong>2278</strong>-<strong>6252</strong><br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
Effect <strong>of</strong> <strong>co</strong>ncentration on Bursting strength<br />
Bursting strength<br />
0 10 20 30 40 50 60 70 80 90<br />
Concentration (g/l)<br />
Fig 4.5:- Effect <strong>of</strong> <strong>co</strong>ncentration <strong>of</strong> PU on Bursting strength <strong>of</strong> fabric.<br />
From Table 4.5 and Figure 4.5 indicate that as the <strong>co</strong>ncentration <strong>of</strong> PU increases from 10 g/l<br />
to 90g/l, the bursting strength value increases from 23.82 to 35.20 respectively. The<br />
maximum bursting strength value was found to be 35.20 <strong>for</strong> 90 g/l PU <strong>co</strong>ncentrations at 0.5<br />
mm <strong>of</strong> thickness. The increase in bursting strength values may be due to the presence PU<br />
which <strong>for</strong>ms a <strong><strong>co</strong>ating</strong> layer on the fabric surface. As the <strong>co</strong>ncentration <strong>of</strong> PU increases from<br />
10 gpl – 90 gpl, the film <strong>for</strong>ming tendency or cross linking efficiency <strong>of</strong> <strong>co</strong>ated fabric<br />
increases which causes requires more energy to break the thicker film <strong>for</strong>m, this can be<br />
supported by the thickness <strong>of</strong> fabric after <strong><strong>co</strong>ating</strong>.<br />
For 1.0 mm Thickness<br />
Table 4.6 Effect <strong>of</strong> <strong>co</strong>ncentration <strong>of</strong> PU on Bursting strength <strong>of</strong> fabric.<br />
Bursting<br />
strength<br />
Concentration (g/l)<br />
0 10 20 30 40 50 60 70 80 90<br />
19.46 31.91 34.82 36.15 39.62 41.36 42.59 43.25 46.01 48.93<br />
Vol. 2 | No. 6 | June 2013 www.garph.<strong>co</strong>.<strong>uk</strong> IJAREAS | 45
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