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Super Absorbent Nonwovens for Protective Apparels

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Effect of SAF content on protective performance


To study the effect of SAF content on protective performance, thermal bonded nonwovens were made of basis weight 200 g/m2 and thickness 6 mm. SAF content in the nonwovens were 10%, 20% and 30%. Amount of water added was 400%. Tests were carried out at 1.0 kW/m2. Figure 5 shows the effect of increasing SAF content. With the increase in SAF content, chances of water being absorbed by SAF increases. The incoming heat has to first break the hydrogen bond between the SAF and water molecules and then evaporate the water. So, higher amount of energy is required than normal evaporation. As a result amount of heat reaching the sensor decreases and time required to reach 45C increases.



Effect of Basis weight of absorbent core on protective performance


To study the effect of basis weight of the absorbent core on protective performance, thermal bonded nonwovens were made of SAF content 30% and thickness 6mm. Basis weight used were 100, 150 and 200 g/m2. Amount of water added was 400%. Tests were carried out at 1.0 kW/m2. Figure 6 shows the effect of increasing basis weight. With the increase in basis weight amount of water added increases, resulting in a better performance.

 

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