Preparation method of antibacterial polyvinyl acetal fibre

A polyvinyl acetal, a technology for a manufacturing method, applied in the manufacture of rayon, chemical characteristics of fibers, single-component synthetic polymer rayon, etc. Problems such as weak strength of antibacterial fibers

Active Publication Date: 2013-04-03
浙江旭亿新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For many years, scientific and technological workers have used fiber-forming polymers as the matrix to spin and develop antibacterial fibers by adding antibacterial agents. However, due to the addition of antibacterial agents, the strength of antibacterial fibers has weakened, and the number of wool and broken filaments has increased. are not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: the manufacture method of polyvinyl acetal antibacterial fiber of the present invention, it adopts the steps as follows:

[0025] Step 1), according to the number of parts by mass, take 10 parts of four needle-shaped zinc oxide whiskers whose characteristic parameters are 0.2-1um in diameter and 5-12um in length, and 10 parts of the four-acicular zinc oxide whiskers whose characteristic parameters are 0.1-0.8um in diameter and 6-12um in length Palygorskite fiber: After mixing the above materials evenly, bake them in a vacuum furnace at 350°C for 5 hours, stir and disperse them in absolute ethanol with sodium hexametaphosphate after cooling, then treat them with normal pressure plasma for 15 minutes, and then use 65°C containing stearin Ultrasonic dispersion and cleaning in deionized water of calcium acid dispersion for 30 minutes, take the suspended whiskers in the upper layer of the solution and filter through 150 meshes, take the mixed solution of whisker...

Embodiment 2

[0028] Embodiment 2: the manufacture method of polyvinyl acetal antibacterial fiber of the present invention, it adopts following steps:

[0029] 1) According to the number of parts by mass, take 8 parts of tetraacicular zinc oxide whiskers with characteristic parameters of 0.2-1um in diameter and 5-12um in length, and 8 parts of slope wire with characteristic parameters of 0.1-0.8um in diameter and 6-12um in length Stone fiber: After mixing the above materials evenly, bake them in a vacuum furnace at 300°C for 4 hours, stir and disperse them in absolute ethanol with sodium hexametaphosphate after cooling, then treat them with normal pressure plasma for 10 minutes, and then use 60°C calcium stearate Ultrasonic dispersion and cleaning in deionized water of the dispersion liquid for 25 minutes, take the suspended whiskers in the upper layer of the solution and filter through 150 mesh, take the whisker mixed solution, and repeat the operation 3 times until it is filtered, and then...

Embodiment 3

[0032] Embodiment 3: the manufacture method of polyvinyl acetal antibacterial fiber of the present invention, it adopts following steps:

[0033] 1) According to the number of parts by mass, take 12 parts of tetraacicular zinc oxide whiskers with characteristic parameters of 0.2-1um in diameter and 5-12um in length, and 12 parts of sloping wire with characteristic parameters of 0.1-0.8um in diameter and 6-12um in length Stone fiber: After mixing the above materials evenly, bake them in a vacuum furnace at 400°C for 6 hours, stir and disperse them in absolute ethanol with sodium hexametaphosphate after cooling, then treat them with normal pressure plasma for 20 minutes, and then use 70°C calcium stearate Ultrasonic dispersion and cleaning in deionized water of the dispersion liquid for 35 minutes, take the suspended whiskers in the upper layer of the solution and filter through 150 mesh, take the whisker mixed solution, and repeat the operation 5 times until it is filtered, and ...

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PUM

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Abstract

The invention relates to a preparation method of an antibacterial polyvinyl acetal fibre, and the method comprises the following steps of: (1), after uniformly mixing tetrapod-like zinc oxide whiskers and palygorskite fibre, roasting in a vacuum furnace, after cooling, stirring and dispersing sodium hexametaphosphate in absolute ethyl alcohol, then, carrying out atmospheric pressure plasma treatment, ultrasonically dispersing in de-ionized water containing calcium stearate dispersion liquid, taking suspension whiskers in the upper layer of the solution to be filtered, taking a whisker mixed solution, repeating the operation till filtering and purifying, and after filtering and purifying, drying in a vacuum oven, thereby obtaining an antibacterial whisker mixture; (2), taking a titanate coupling agent, diluting and uniformly mixing the titanate coupling agent by using isopropanol, and, after heating, stirring and drying the titanate coupling agent with the antibacterial whisker mixture obtained in the step (1) in a mixing machine; and then, adding a silver antibacterial agent, a silver-loaded zirconium phosphate antibacterial agent, a zeolite antibacterial agent, an EPP (Foamed Polypropylene) bulking agent and calcium stearate, after stirring in the mixing machine, adding a polyvinyl alcohol spinning solution, and stirring at a high speed, thereby obtaining a broad-spectrum antibacterial polyvinyl alcohol spinning solution; and (3), mixing, filtering and defoaming the broad-spectrum antibacterial polyvinyl alcohol spinning solution obtained in the step (2), spinning by using a wet method or a dry method, and carrying out acetalation treatment, thereby obtaining broad-spectrum antibacterial polyvinyl acetal fibre.

Description

technical field [0001] The invention relates to a method for producing polyvinyl acetal antibacterial fiber, the polyvinyl acetal antibacterial fiber includes fiber-grade polyvinyl alcohol (PVA), zinc oxide whiskers, palygorskite fiber, silver-loaded zirconium phosphate An antibacterial agent, a zeolite antibacterial agent, and a silver-based antibacterial agent belong to the technical field of functional chemical fiber manufacturing. Background technique [0002] The fiber made of polyvinyl alcohol (PVA) is treated with formaldehyde to obtain polyvinyl formal fiber, which is called vinylon in China and vinylon internationally. The nature of vinylon is quite similar to that of cotton, so it is called synthetic cotton. Strength and abrasion resistance are better than cotton. Vinylon filament is like silk again. It has good hygroscopicity, and its moisture regain is 4.5-5% under standard conditions, which ranks among the best among synthetic fibers; its specific gravity (1....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/50D01F1/10D01F11/06
Inventor 凌荣根谢淳冯家骏王铁军吴维光
Owner 浙江旭亿新材料科技股份有限公司
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