A kind of flexible conductive composite cotton thread and preparation method thereof
A flexible conductive, cotton thread technology, applied in equipment for manufacturing conductive/semiconducting layers, cable/conductor manufacturing, conductive layers on insulating carriers, etc., can solve the problem of poor bonding force of graphene oxide/silver composites Problems such as low performance and short service life, to achieve the effects of excellent electrochemical stability, excellent conductivity, and excellent flexibility
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Embodiment 1
[0033] A preparation method of flexible conductive composite cotton thread is carried out according to the following steps:
[0034] step one)
[0035] The cotton thread was stretched, and the graphene oxide dispersion liquid with a concentration of 10 mg / mL was applied to the surface of the cotton thread, dried at 50 ° C, and the coating and drying process was repeated 10 times to obtain a core-shell structure cotton thread / graphene oxide. ;
[0036] Step (2)
[0037] The cotton thread / graphene oxide was soaked in silver ammonia solution with a concentration of 100mM for 40min, washed with deionized water, and suspended over the mixed solution of hydriodic acid and ethanol in a wet state. The molar ratio of hydrogen iodide and ethanol is 1:0.2, and the mass concentration of hydrogen iodide is 80%;
[0038] Step (3)
[0039] In a sealed environment, the temperature was first kept at 75 °C for 40 min, and then the temperature was lowered to 50 °C for 6 h.
[0040] In the f...
Embodiment 2
[0042] A preparation method of flexible conductive composite cotton thread is carried out according to the following steps:
[0043] step one)
[0044] The cotton thread was stretched straight, and the graphene oxide dispersion liquid with a concentration of 10 mg / mL was applied to the surface of the cotton thread, dried at 60 ° C, and the coating and drying process was repeated 3 times to obtain the core-shell structure cotton thread / graphene oxide. ;
[0045] Step (2)
[0046] The GO / cotton thread was soaked in silver ammonia solution with a concentration of 100 mM for 30 min, washed with deionized water, and suspended over a mixed solution of hydroiodic acid and ethanol in a wet state. The molar ratio of hydrogen iodide and ethanol was 1. : 0.4, the mass concentration of hydrogen iodide is 70%;
[0047] Step (3)
[0048] In a sealed environment, the temperature was first kept at 85 °C for 30 min, and then the temperature was lowered to 60 °C for 5 h.
[0049] In the flex...
Embodiment 3
[0051] A preparation method of flexible conductive composite cotton thread is carried out according to the following steps:
[0052] step one)
[0053] The cotton thread was stretched straight, and the graphene oxide dispersion solution with a concentration of 10 mg / mL was applied to the surface of the cotton thread, dried at 55 ° C, and the coating and drying process was repeated 6 times to obtain the core-shell structure cotton thread / graphene oxide. ;
[0054] Step (2)
[0055] The GO / cotton thread was soaked in silver ammonia solution with a concentration of 100 mM for 35 min, washed with deionized water, and suspended over a mixed solution of hydroiodic acid and ethanol in a wet state, and the molar ratio of hydrogen iodide and ethanol was 1 : 0.3, the mass concentration of hydrogen iodide is 75%;
[0056] Step (3)
[0057] In a sealed environment, the temperature was first kept at 80 °C for 35 min, and then the temperature was lowered to 55 °C for 5.5 h.
[0058] In...
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