Note: using, partial failure and complete failure of the status of bag
filter were defined as failure rate of that below 3%, 3-30% and above
30%, respectively.
The
cross
breaking (CD) strength of samples was tested by an electronic fabrics
strength tester (YG026C, Changzhou textile instrument Co., China). The
gauge length and extension rate were set as 200mm and 100mm/min
according to the testing method for nonwovens-Part 3: Determination of
tensile strength and elongation, MOD (ISO 9073-3), respectively. The
300×50 mm strips cut from PPS-based bag filter materials were adopted to
operate for related measurement. Every sample was tested for 5 times and
average values were used to illustrate the changes of transverse
strength of bag filters.