Nano-titanium dioxide fabric finishing agent with surface coated with cerium-doped zinc oxide as well as preparation method thereof

A nano-titanium dioxide, fabric finishing agent technology, applied in fiber processing, textiles and papermaking, etc., can solve the problems of decreased mechanical properties of PBO fibers, destruction of macromolecular chemical structure, accelerated macromolecular chain breakage, etc. Increased durability and soft feel

Inactive Publication Date: 2018-05-29
安徽长正升科技有限公司
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Problems solved by technology

At the same time, the hydrogen atoms in the polymer are oxidized to -COOH, and then the bimolecules decompose to generate free radicals, which attack the PBO macromolecules, destroy the chemical structure of the macromolecules, and generate new free radicals, further accelerating the breakage of the macromolecular chains, which makes The mechanical properties of PBO fibers are greatly reduced

Method used

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Embodiment Construction

[0019] The surface-coated nano-titanium dioxide fabric finishing agent doped with cerium zinc oxide of the present embodiment is prepared by the following steps:

[0020] (1) Prepare a suspension of nano-titanium dioxide with absolute ethanol as a solvent, and sonicate for 40 minutes, start magnetic stirring and raise the temperature to 60°C, keep the temperature constant, slowly drop into the mixed solution of cerium chloride and zinc chloride, and at the same time Keep the pH of the mixed solution at 8-9, continue magnetic stirring at constant temperature for 12 hours after the addition is completed, wash, filter, dry, and calcinate the slurry at a high temperature to obtain nano-titanium dioxide coated with cerium-doped zinc oxide on the surface; The mass ratio of cerium chloride and zinc chloride in the mixed solution of cerium and zinc chloride is 1:8; the mass ratio of nano-titanium dioxide, absolute ethanol and zinc chloride is 1:15:0.7;

[0021] (2) Ultrasonic disperse...

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Abstract

A nano-titanium dioxide fabric finishing agent with the surface coated with cerium-doped zinc oxide is characterized by being prepared by the following steps: firstly, hydrolyzing and depositing cerium chloride and zinc chloride on the surface of nano-titanium dioxide to obtain the nano-titanium dioxide with the surface coated with the cerium-doped zinc oxide, and performing surface treatment by acoupling agent KH-550 to obtain organic silicon modified ultraviolet-resistant granules; secondly, performing polymerization on hydroxyethyl acrylate, acrylic acid and butyl acrylate to obtain polyacrylic acid emulsion; finally, preparing aqueous dispersion of the organic silicon modified ultraviolet-resistant granules and coating with the polyacrylic acid emulsion, to obtain the nano-titanium dioxide fabric finishing agent with the surface coated with cerium-doped zinc oxide. The fabric finishing agent provided by the invention has high stability; after being finished, the fabric has excellent ultraviolet-resistant effect, high durability and soft hand feeling.

Description

technical field [0001] The invention belongs to the textile field, in particular to a nano-titanium dioxide fabric finishing agent coated with cerium-doped zinc oxide on the surface and a preparation method thereof. Background technique [0002] Ultraviolet rays are prone to have adverse effects on textiles. After the silk is irradiated by ultraviolet rays, the C-N bond of the main chain of the molecular chain and the peptide bond group in the side group is broken, releasing CO, N 2 And other gases, and finally decomposed into amino acids. The performance of high-performance fibers will also decline to varying degrees under ultraviolet radiation. For example, after the poly-p-phenylenebenzobisoxazole (PBO) fiber is irradiated by ultraviolet rays, its internal carbon atoms are oxidized into CO, CO 2 etc., and CO can further accelerate the oxidation. At the same time, the hydrogen atoms in the polymer are oxidized to -COOH, and then the bimolecules decompose to generate fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/46D06M11/44D06M13/513D06M15/263
Inventor 陈宇
Owner 安徽长正升科技有限公司
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