A preparation method of cotton fabric with conductive, electromagnetic shielding and flame retardant functions

Abstract

The invention provides a preparation method of cotton fabric with electrical conductivity, electromagnetic shielding and flame-retardant functions. The method comprises steps as follows: (1), tetraethoxysilane is dissolved in absolute ethanol, ammonium hydroxide is added, the mixture is stirred for 30 min at the temperature of 60 DEG C, and a milky white solution is obtained; (2), the solution is cooled to the room temperature, and pyrrole is added; (3), the cotton fabric is soaked in the mixed solution obtained in the step (2) and subjected to twice-dipping and twice-padding, and the pick-up rate is 90%-110%; (4), the dipped and padded cotton fabric is soaked in a water solution containing ammonium persulfate, phytic acid and a silane coupling agent KH560 for 1 h, and the extra water solution is removed from a padder; (5), the cotton fabric is dried at the temperature of 60 DEG C, baked at the temperature of 120 DEG C, washed with water and dried. According to the preparation method, phytic acid is taken as doping acid of polypyrrole, and the cotton fabric has electrical conductivity, electromagnetic shielding performance and flame retardancy; a silicon dioxide sol-gel technique is combined with a polypyrrole in-site chemical synthesis technique, and the process is simple and easy to operate; the washability of phytic acid is improved with the application of the silane coupling agent, and the electrical conductivity and stability and durability of flame retardancy of the cotton fabric are improved.

Description

technical field [0001] The invention relates to a method for preparing functional cotton fabrics, in particular to a method for preparing cotton fabrics with conductive, electromagnetic shielding and flame-retardant functions. Background technique [0002] The interaction of electric and magnetic fields produces electromagnetic waves, and the phenomenon of electromagnetic waves being emitted or leaked into the air is called electromagnetic radiation. With the advancement of science and technology, more electrical products have entered people's lives, bringing electromagnetic pollution to people, which is called the fourth largest pollution after air pollution, water pollution and noise pollution. After the human body is irradiated by excessive electromagnetic waves, the blood, lymph and cell protoplasm will change, resulting in damage to the deoxyribonucleic acid in the cells and genetic mutations and deformities, which will induce leukemia and tumors, and also cause changes...

AI Technical Summary

Problems solved by technology

The currently disclosed polypyrrole-coated cotton fabrics are mainly doped with some small molecular organic acids, and the doped acids are easy to dedope and lose conductivity during the washing process.