A preparation method of mesoporous zirconium phosphate loaded nano-silver antibacterial polylactic acid fiber

A nano-silver antibacterial and polylactic acid fiber technology is applied in botanical equipment and methods, fiber chemical characteristics, fungicides, etc. Low-cost, long-lasting, and easy-to-use effects

Active Publication Date: 2017-06-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, the addition amount is relatively large, and the distribution of antibacterial components is uneven, so it is difficult to realize continuous production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber includes a polylactic acid matrix, and mesoporous zirconium phosphate-loaded nano-silver antibacterial powder is dispersed in the polylactic acid matrix.

[0024] The preparation method of the above-mentioned mesoporous zirconium phosphate loaded nano-silver antibacterial polylactic acid fiber, the specific steps are:

[0025] (1) Mesoporous zirconium phosphate is treated with oleum to obtain mesoporous zirconium phosphate with sulfonic acid groups on the surface. The specific steps for treating mesoporous zirconium phosphate with oleum are: oleum with a mass fraction of 98% and mesoporous zirconium phosphate The mass ratio of pore zirconium phosphate is 10:1, the reaction temperature is 40° C., and the reaction time is 20 minutes.

[0026] (2) Take silver nitrate, ethylene glycol, and mesoporous zirconium phosphate with sulfonic acid groups on the surface at a mass ratio of 0.5:39.5...

Embodiment 2

[0029] A mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber includes a polylactic acid matrix, and mesoporous zirconium phosphate-loaded nano-silver antibacterial powder is dispersed in the polylactic acid matrix.

[0030] The preparation method of the above-mentioned mesoporous zirconium phosphate loaded nano-silver antibacterial polylactic acid fiber, the specific steps are:

[0031] (1) Mesoporous zirconium phosphate is treated with oleum to obtain mesoporous zirconium phosphate with sulfonic acid groups on the surface. The specific steps for treating mesoporous zirconium phosphate with oleum are: oleum with a mass fraction of 98% and mesoporous zirconium phosphate The mass ratio of pore zirconium phosphate is 20:1, the reaction temperature is 40° C., and the reaction time is 80 minutes.

[0032] (2) Take silver sulfate, propylene glycol, and mesoporous zirconium phosphate with sulfonic acid groups on the surface at a mass ratio of 0.5: 5:...

Embodiment 3

[0035] A mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber includes a polylactic acid matrix, and mesoporous zirconium phosphate-loaded nano-silver antibacterial powder is dispersed in the polylactic acid matrix.

[0036] The preparation method of the above-mentioned mesoporous zirconium phosphate loaded nano-silver antibacterial polylactic acid fiber, the specific steps are:

[0037] (1) Mesoporous zirconium phosphate is treated with oleum to obtain mesoporous zirconium phosphate with sulfonic acid groups on the surface. The specific steps for treating mesoporous zirconium phosphate with oleum are: oleum with a mass fraction of 80% and mesoporous zirconium phosphate The mass ratio of pore zirconium phosphate is 20:1, the reaction temperature is 50° C., and the reaction time is 60 minutes.

[0038](2) Take silver nitrate, isosorbide and mesoporous zirconium phosphate with sulfonic acid groups on the surface with a mass ratio of 5: 39.5: 54.5...

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Abstract

The invention provides a nano-silver antibacterial polylactic acid fiber loaded with mesoporous zirconium phosphate and a preparation method thereof. The mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber is characterized in that it includes a polylactic acid matrix, and mesoporous zirconium phosphate-loaded nano-silver antibacterial powder is dispersed in the polylactic acid matrix. The preparation method of the above-mentioned mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber includes: adding the mesoporous zirconium phosphate with sulfonic acid groups on the surface to the sol containing silver ions, and stirring at 20-100°C 1 to 3 hours to obtain the Ag@mesoporous zirconium phosphate sol precursor, and heat it in a tube furnace at 200 to 550°C for 2 to 5 hours in a nitrogen atmosphere to prepare Ag@mesoporous zirconium phosphate antibacterial powder; Zirconium phosphate antibacterial powder and polylactic acid are melted and blended at 180-230° C., dried, and finally spun into mesoporous zirconium phosphate-loaded nano-silver antibacterial polylactic acid fiber by melt spinning. The method of the invention is simple in operation, high in efficiency, low in cost, durable in effect and broad in application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of antibacterial fibers, in particular to a preparation method of mesoporous zirconium phosphate loaded nano-silver antibacterial polylactic acid fibers. Background technique [0002] In today's society, the extreme environment, environmental pollution and other ecological environments have seriously deteriorated, and special living microenvironments such as confined spaces have led to an urgent need for functional protective textiles. At present, the fibers used to prepare textiles do not have antibacterial ability. Under certain conditions, they will provide an environment for bacteria to survive and reproduce, threatening human health. The main method to solve the antibacterial problem of fibers is to use antibacterial nanoparticles and polymer matrix for composite modification to prepare modified fibers with antibacterial effects. The fiber will gradually release antibacterial ingredients during us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10D01D5/08A01N59/16A01N25/10A01P1/00A01P3/00
Inventor 朱美芳周家良俞森龙相恒学孙宾成艳华
Owner DONGHUA UNIV
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