Electric conductive textile and method for fabricating the same
A technology of conductive fabric and conductive film, applied in conductive coatings, printed circuits, electrical components, etc., can solve the problems affecting the performance of electronic devices, high resistance variation rate, and achieve easy subsequent processing and use, low resistance variation rate, good biological friendliness sexual effect
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preparation example Construction
[0040] In some embodiments, the preparation method of the polyurethane resin 131 may include: mixing isocyanate and glycerin to form an intermediate product; and mixing the intermediate product, polyether polyol and a catalyst to form the polyurethane resin 131 . Specifically, the isocyanate may be, for example, 4,4-dicyclohexylmethane diisocyanate (H12MDI); the catalyst may be, for example, dibutyltin dilaurate, dibutyltin diacetate, trifluoromethanesulfonic acid, methanesulfonic acid, diphosphate Phenyl esters, aminopyridines, or other nitrogen-containing heterocycles such as diazabicyclooctane, nitrogen isocyclic carbene; polyether polyols can be, for example, tetrahydrofuran homopolyether ( PTMEG). In addition, intermediate products include molecular structures represented by formula (2):
[0041]
[0042] In formula (2), m is a positive integer. In some embodiments, the molar ratio of isocyanate and polyether polyol used to prepare polyurethane resin 131 can be, for ...
experiment example 1
[0052]
[0053] In this experimental example, the conductive fabrics of each embodiment and each comparative example were made from H12MDI and PTMEG with different molar ratios. Stretch the conductive fabric to 150% of its original length and use the DIN 54345-1 standard method to test the conductivity with a two-point probe to measure the resistance variation rate of the conductive fabric, wherein the resistance variation rate=100%×[(when stretched Resistance value X2-resistance value before stretching X1) / resistance value before stretching X1], the test results are shown in Table 1.
[0054] In the conductive fabric shown in Table 1, the base cloth is made of thermoplastic polyurethane, the thickness of the conductive film is 50 microns, and the polyurethane resin in the conductive film has 10 parts by weight and the flaky silver powder has 60 parts by weight. The longest axis is between 2 μm and 5 μm.
[0055] Table I
[0056] Comparative example / Example H12...
experiment example 2
[0058]
[0059] In this experimental example, the conductive fabrics of each embodiment and each comparative example were made from different conductive film thicknesses. Stretch the conductive fabric to 120% of its original length and use the DIN 54345-1 standard method to test the conductivity with a two-point probe to measure the resistance variation rate of the conductive fabric. The test results are shown in Table 2.
[0060] In the conductive fabric shown in Table 2, the base fabric is made of thermoplastic polyurethane, the polyurethane resin in the conductive film has 10 parts by weight and the flake silver powder has 60 parts by weight, and the polyurethane resin is in the molar ratio of H12MDI and PTMEG Made of 20:11, the longest axis of flake silver powder is between 2μm and 5μm.
[0061] Table II
[0062] Comparative example / Example Conductive film thickness Resistance variation rate Comparative example 3 70 microns 42.85％ Example 5 ...
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