Method for modifying surfaces of wool fibers by using tetrabutyl titanate and chitosan

A tetrabutyl titanate, wool fiber technology, applied in fiber processing, animal fibers, textiles and papermaking, etc., can solve the problems of difficulty in dyeing wool fibers with dark colors, low color fastness to sunlight, and poor antibacterial properties. Solve the difficulty of dyeing, save raw materials, and have the effect of small strength damage

Inactive Publication Date: 2013-02-06
XI'AN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of method that adopts tetrabutyl titanate and chitosan to carry out surface modification to wool fiber, has realized directly loading nano-titanium dioxide and chitosan film on wool fiber surface, solved existing modification The wool fiber obtained by the method has the problems of difficulty in dyeing dark colors, poor antibacterial properties, low color fastness to sunlight and easy felting

Method used

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  • Method for modifying surfaces of wool fibers by using tetrabutyl titanate and chitosan
  • Method for modifying surfaces of wool fibers by using tetrabutyl titanate and chitosan
  • Method for modifying surfaces of wool fibers by using tetrabutyl titanate and chitosan

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Embodiment 1

[0082] Weigh 0.5g of wool fiber, weigh 0.125g of sodium carbonate according to the quality of wool fiber, measure 250mL of deionized water, pour 0.125g of sodium carbonate into 250mL of deionized water, make sodium carbonate fully dissolved in deionized water, and prepare Sodium carbonate solution with a concentration of 0.5g / L by mass volume percentage, put 0.5g wool fiber into the prepared sodium carbonate solution, soak the wool fiber in the sodium carbonate solution at 40℃ for 10 minutes to complete the wool fiber Take out the pretreated wool fiber, and then wash the pretreated wool fiber with 30℃ acetone and 40℃ absolute ethanol solution for 5 minutes, then rinse with deionized water once, and finally wash the The wool fiber is dried at 70℃; weigh 0.1g of chitosan with a degree of deacetylation of 65% and add it to the acetic acid solution with a concentration of 1% by mass. The mass ratio of chitosan with a degree of deacetylation of 65% to the acetic acid solution 1:100,...

Embodiment 2

[0085] Weigh 0.5g of wool fiber, weigh 0.5g of sodium carbonate according to the quality of wool fiber, measure 250mL of deionized water, pour 0.5g of sodium carbonate into 250mL of deionized water, make sodium carbonate fully dissolved in deionized water, and configure Sodium carbonate solution with a concentration of 2g / L by mass volume percentage, 0.5g wool fiber is put into the prepared sodium carbonate solution, and the wool fiber is soaked in the sodium carbonate solution for 30 minutes at 50℃ to complete the wool fiber Pre-treatment, remove the pre-treated wool fibers, and then wash the pre-treated wool fibers with acetone at 40°C and anhydrous ethanol solution at 50°C for 15 minutes, and then rinse with deionized water for 3 times. Finally, the washed wool The fiber is dried at 80°C; weigh 0.05g of 95% deacetylation degree chitosan and add it to the 5% concentration of acetic acid solution, the mass ratio of 95% deacetylation degree chitosan to acetic acid solution is 1...

Embodiment 3

[0088] Weigh 0.5g of wool fiber, weigh 0.3g of sodium carbonate according to the quality of wool fiber, measure 200mL of deionized water, pour 0.3g of sodium carbonate into 200mL of deionized water, make sodium carbonate fully dissolved in deionized water, and configure Sodium carbonate solution with a concentration of 1.5g / L by mass volume percentage, 0.5g wool fiber is poured into the prepared sodium carbonate solution, and the wool fiber is soaked in the sodium carbonate solution for 30 minutes at 60℃ to complete the wool fiber Take out the pretreated wool fiber, and then wash the pretreated wool fiber with 50℃ acetone and 60℃ absolute ethanol solution for 15 minutes, then rinse with deionized water 3 times, and finally wash the The wool fiber is dried at 90℃; weigh 0.06g of chitosan with a degree of deacetylation of 85% and add it to the acetic acid solution with a concentration of 3% by mass. The mass ratio of chitosan with a degree of deacetylation of 85% to the acetic aci...

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Abstract

The invention discloses a method for modifying surfaces of wool fibers by using tetrabutyl titanate and chitosan; and the method is implemented in the following steps of: (1) soaking wool fibers in a sodium carbonate solution; pretreating the wool fibers in the sodium carbonate solution; and washing and drying the pretreated wool fibers; (2) preparing a chitosan mixed solution with low molecular weight; (3) preparing a precursor solution; (4) adding the chitosan mixed solution with low molecular weight to the precursor solution, so as to prepare a modifying solution; and (5) carrying out aftertreatment on the modified wool fibers, so as to finish the modification of the wool fibers by using the tetrabutyl titanate and the chitosan. Nanometer titanium dioxide and chitosan films are directly loaded on the surfaces of the wool fibers; and problems of difficulty in heavy-shade dyeing, poorer antibacterial property, low color fastness to sunlight and easiness for felting shrinkage in the wool fibers obtained by the traditional modifying method are solved.

Description

Technical field [0001] The invention belongs to the technical field of functional textile materials, and relates to a method for modifying wool fibers, in particular to a method for surface modification of wool fibers by using tetrabutyl titanate and chitosan. Background technique [0002] Anatase nano-titanium dioxide is a wide band gap semiconductor oxide material that has attracted much attention today. It has excellent anti-ultraviolet and antibacterial functions. Combining it with ordinary textile materials can protect people from ultraviolet rays and reduce the spread of diseases. Therefore, it has very important practical application value and development prospects. At present, the preparation methods of nanometer titanium dioxide mainly include sol-gel method, uniform precipitation method, microemulsion method and hydrothermal method. Among them, the hydrothermal method is environmentally friendly, has high purity, and the prepared nanoparticles are uniform and dispersibl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/03D06M11/46D06M101/12
Inventor 张辉张兴涛
Owner XI'AN POLYTECHNIC UNIVERSITY
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