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

A technology of tetrabutyl titanate and wool fiber, which is applied in fiber treatment, animal fiber, textiles and papermaking, etc., can solve the problems of wool fiber dyeing dark color, low color fastness to sunlight, and poor antibacterial property, and achieves Solve dyeing difficulties, save raw materials, and reduce strength damage

Inactive Publication Date: 2014-06-04
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

Examples

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Effect test

Embodiment 1

[0082] Weigh 0.5g wool fiber, weigh 0.125g sodium carbonate according to the quality of wool fiber, measure 250mL deionized water, pour 0.125g sodium carbonate into 250mL deionized water, fully dissolve sodium carbonate in deionized water, and configure Sodium carbonate solution with a mass volume percentage concentration of 0.5g / L, put 0.5g of wool fiber into the sodium carbonate solution prepared in the middle, and soak the wool fiber in the sodium carbonate solution for 10min at 40°C to complete the treatment of wool fiber. The pretreatment of the pretreated wool fiber was taken out, and then the pretreated wool fiber was washed with 30°C acetone and 40°C absolute ethanol solution for 5 minutes respectively, and then rinsed with deionized water once, and finally the washed wool fiber The wool fiber was dried at 70°C; 0.1g of chitosan with a deacetylation degree of 65% was weighed and added to an acetic acid solution with a mass percent concentration of 1%, and the mass ratio o...

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, fully dissolve sodium carbonate in deionized water, and configure Sodium carbonate solution with a mass volume percentage concentration of 2g / L, put 0.5g of wool fiber into the sodium carbonate solution prepared in the medium, and soak the wool fiber in the sodium carbonate solution for 30min at 50°C to complete the treatment of wool fiber Pretreatment: take out the pretreated wool fibers, and then wash the pretreated wool fibers with 40°C acetone and 50°C absolute ethanol solutions for 15 minutes respectively, and then rinse with deionized water for 3 times, and finally wash the wool fibers The fibers were dried at 80°C; 0.05g of chitosan with a degree of deacetylation of 95% was weighed and added to an acetic acid solution with a mass percent concentration of 5%, and the mass rati...

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, fully dissolve sodium carbonate in deionized water, and configure Sodium carbonate solution with a mass volume percentage concentration of 1.5g / L, put 0.5g of wool fiber into the sodium carbonate solution prepared in the medium, and soak the wool fiber in the sodium carbonate solution for 30min at 60°C to complete the treatment of wool fiber. The pretreatment of the pretreated wool fiber was taken out, and then the pretreated wool fiber was washed with 50 ℃ acetone and 60 ℃ absolute ethanol solution for 15 minutes respectively, and then rinsed with deionized water for 3 times, and finally the washed wool fiber The wool fiber is dried at 90°C; 0.06g of chitosan with a deacetylation degree of 85% is weighed and added to an acetic acid solution with a mass percent concentration of 3%, ...

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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 modifying the surface of wool fibers by using tetrabutyl titanate and chitosan. Background technique [0002] Anatase phase 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 prospect. At present, the preparation methods of nano-titanium dioxide mainly include sol-gel method, uniform precipitation method, microemulsion method and hydrothermal method, etc. Among them, the hydrothermal method is environmentally friendly and high in purity, and the prepared nanoparticles are uniform a...

Claims

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Application Information

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