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Method for microwave synthesis of nano-ZnO assembled cotton fibers

A microwave synthesis, cotton fiber technology, applied in fiber processing, textile and papermaking, physical processing and other directions, can solve the problems of toxicity, upper respiratory tract irritation, high cost, and achieve the effect of broadening the application field

Inactive Publication Date: 2013-07-10
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But since Ce(NO 3 ) 3 Toxic, irritating to the eyes, skin mucous membranes and upper respiratory tract, and the cost is relatively high, so it is not suitable for large-scale use

Method used

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  • Method for microwave synthesis of nano-ZnO assembled cotton fibers
  • Method for microwave synthesis of nano-ZnO assembled cotton fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Preparation of zinc ammonia solution

[0020] Take the same volume of NaOH solution and zinc nitrate solution, slowly add the NaOH solution into the zinc nitrate solution, stir continuously, obtain a precipitate, vacuum filter, clean to obtain a pure zinc hydroxide precipitate, transfer the precipitate to a beaker, add dropwise 25 % ammoniacal liquor until the precipitation is completely dissolved, and the solution is clarified, and the solution is suction-filtered to obtain a zinc-ammonia solution, and the concentration of the reaction liquid substance is about 0.05mol / l.

[0021] (2) Microwave synthesis samples

[0022] Take the reaction solution in (1), add hexadecyltrimethylammonium bromide and tributyl phosphate in turn, stir evenly, put natural cotton into it, and treat it under microwave power 296w for 5 minutes until the natural cotton is transparently dispersed ; wherein the mass ratio of zinc nitrate, cetyltrimethylammonium bromide, tributyl phosphate and...

Embodiment 2

[0026] (1) Preparation of zinc ammonia solution

[0027] Take the same volume of NaOH solution and zinc nitrate solution, slowly add the NaOH solution into the zinc nitrate solution, stir continuously, obtain a precipitate, vacuum filter, clean to obtain a pure zinc hydroxide precipitate, transfer the precipitate to a beaker, add dropwise 25 % ammoniacal liquor until the precipitation is completely dissolved, and the solution is clarified, and the solution is suction-filtered to obtain a zinc-ammonia solution, and the concentration of the substance in the reaction solution is about 0.10 mol / l.

[0028] (2) Microwave synthesis samples

[0029] Take the reaction solution in (1), add hexadecyltrimethylammonium bromide and tributyl phosphate in turn, stir evenly, put natural cotton into it, and treat it under microwave power 296w for 5 minutes until the natural cotton is transparently dispersed ; wherein the mass ratio of zinc nitrate, cetyltrimethylammonium bromide, tributyl pho...

Embodiment 3

[0033] (1) Preparation of zinc ammonia solution

[0034] Take the same volume of NaOH solution and zinc nitrate solution, slowly add the NaOH solution into the zinc nitrate solution, stir continuously, obtain a precipitate, vacuum filter, clean to obtain a pure zinc hydroxide precipitate, transfer the precipitate to a beaker, add dropwise 25 % ammoniacal liquor until the precipitation is completely dissolved, and the solution is clarified, and the solution is suction-filtered to obtain a zinc-ammonia solution, and the concentration of the substance in the reaction solution is about 0.15mol / l.

[0035] (2) Microwave synthesis samples

[0036] Take the reaction solution in (1), add hexadecyltrimethylammonium bromide and tributyl phosphate in turn, stir evenly, put natural cotton into it, and treat it under microwave power 296w for 5 minutes until the natural cotton is transparently dispersed ; wherein the mass ratio of zinc nitrate, cetyltrimethylammonium bromide, tributyl phos...

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Abstract

The invention discloses a method for microwave synthesis of nano-ZnO assembled cotton fibers and in particular relates to a method for preparing cotton fibers which are assembled by nano ZnO, TiO2 and AG or compositions of the nano ZnO, TiO2 and AG and are favorable in antibiosis, ultraviolet resistance and water washing resistance. According to the method, a main raw material, namely zinc nitrate (zinc sulfate or zinc chloride), and NaOH react to generate zinc hydroxide precipitate, the zinc hydroxide precipitate is dissolved in an aqueous ammonia solution to form a zinc ammonia solution, the cotton fibers adsorbed with the zinc ammonia solution are assembled under a microwave heating condition, and nano zinc oxide small particles are formed in cavities and a network structure of the cotton fibers. By virtue of ZnO, TiO2 and Ag inorganic nanopowder, the pure cotton fibers have antibiosis, sterilization and ultraviolet resistance properties, and the application field of the cotton fibers is greatly broadened.

Description

technical field [0001] The invention relates to a method for microwave-synthesizing nano-ZnO assembled cotton fibers, in particular to a method for preparing nano-ZnO assembled cotton fibers with excellent antibacterial, anti-ultraviolet and good washing resistance properties. Background technique [0002] Cotton, as a very important natural fiber, is widely used in the apparel industry due to its renewable, biodegradable, soft, comfortable and hygroscopic properties. However, due to the poor UV resistance and antibacterial ability of natural cotton fiber, the wider application of cotton fiber is limited. At present, the research and development of anti-ultraviolet and antibacterial cotton fibers has become a very active field. Attach some inorganic nanopowders on the fiber, such as ZnO, TiO 2 Or Ag particles, etc. can make cotton fibers have good anti-ultraviolet and bactericidal purposes. Nano-ZnO particles have good anti-ultraviolet performance, a wide range of ultravi...

Claims

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Application Information

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IPC IPC(8): D06M10/06
Inventor 李酽安冬敏邹云玲李国柱
Owner CIVIL AVIATION UNIV OF CHINA
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