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. 2022 Jun 20;14(12):2515. doi: 10.3390/polym14122515

Table 4.

Standard deviations of the strain distributions of the PET and PI films in the dryer.

PET Film
Original Dryer Model Flow Channel Improvement Hole Density Improvement
MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4]
A_1 2.7043 B_1 0.6319 C_1 0.7027 A_1 2.5953 B_1 0.3837 C_1 0.6851 A_1 2.4570 B_1 0.3481 C_1 0.5287
A_2 1.6362 B_2 0.6372 C_2 0.6508 A_2 1.9366 B_2 0.4606 C_2 0.7586 A_2 1.0269 B_2 0.4377 C_2 0.6433
A_3 0.9578 B_3 0.6971 C_3 0.7066 A_3 0.8316 B_3 0.5827 C_3 0.7559 A_3 0.6078 B_3 0.4467 C_3 0.5480
A_4 0.8910 C_4 2.8824 A_4 0.8712 C_4 2.0682 A_4 0.6607 C_4 1.7115
A_5 0.8641 C_5 5.6789 A_5 0.8279 C_5 5.4529 A_5 0.5581 C_5 3.0596
PI Film
Original Dryer Model Flow Channel Improvement Hole Density Improvement
MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4] 		MD Std.
Deviation
[10−4]
A_1 0.5092 B_1 0.0088 C_1 0.0098 A_1 0.4761 B_1 0.0043 C_1 0.0092 A_1 0.5046 B_1 0.0047 C_1 0.0071
A_2 0.1936 B_2 0.0086 C_2 0.0093 A_2 0.2770 B_2 0.0073 C_2 0.0115 A_2 0.1992 B_2 0.0058 C_2 0.0085
A_3 0.0174 B_3 0.0087 C_3 0.0200 A_3 0.0259 B_3 0.0079 C_3 0.0119 A_3 0.0157 B_3 0.0061 C_3 0.0129
A_4 0.0093 C_4 0.1616 A_4 0.0116 C_4 0.1161 A_4 0.0087 C_4 0.1137
A_5 0.0089 C_5 0.5453 A_5 0.0137 C_5 0.5362 A_5 0.0113 C_5 0.5354