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Waterproof self-cleaning fiber coating and preparation method thereof

A self-cleaning, fiber-based technology, applied in coatings, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of not having self-cleaning function, restricting the application of fiber coatings, and poor water resistance, so as to improve water resistance, The effect of increasing strength

Inactive Publication Date: 2021-11-30
徐州特之达包装科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When polyvinyl alcohol is used in fiber coatings, due to the good hydrophilicity of polyvinyl alcohol, the water resistance is not good, and most fiber coatings on the market do not have self-cleaning function, so the application of fiber coatings is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A waterproof and self-cleaning fiber coating, mainly comprising: 70 parts of modified polyvinyl alcohol fiber, 8 parts of maleic anhydride, 18 parts of modified niobate, 2 parts of polyphosphoric acid and 12 parts by weight. Cross-linking solution.

[0034] A preparation method of a waterproof self-cleaning fiber coating, the preparation method of the waterproof self-cleaning fiber coating mainly includes the following preparation steps:

[0035] (1) Mix the ferric chloride aqueous solution with the concentration of 0.4mol / L and the ferrous sulfate aqueous solution with the concentration of 0.4mol / L in the three-necked flask at a volume ratio of 14:9, and feed the three-necked flask with 50mL / min Nitrogen gas was passed into the three-necked flask at a high speed, and after removing the oxygen in the three-necked flask, the temperature of the materials in the three-necked flask was raised to 55°C, and ammonia water with a mass fraction of 25% was added to the three-necked...

Embodiment 2

[0043] A waterproof and self-cleaning fiber coating, mainly comprising: 70 parts of polyvinyl alcohol fiber, 8 parts of maleic anhydride, 18 parts of modified niobate, 2 parts of polyphosphoric acid and 12 parts of crosslinking liquid.

[0044] A preparation method of a waterproof self-cleaning fiber coating, the preparation method of the waterproof self-cleaning fiber coating mainly includes the following preparation steps:

[0045] (1) Mix polyvinyl alcohol and water at a ratio of 3:20 by mass, stir until completely dissolved at a temperature of 95°C to obtain a polyvinyl alcohol solution, and electrospin the polyvinyl alcohol solution in an electrospinning machine Silk, to get polyvinyl alcohol fiber;

[0046] (2) Mix starch and water at a mass ratio of 1:12 to obtain a starch solution, mix the starch solution and ferrous sulfate heptahydrate solution with a concentration of 0.056g / mL in a beaker at a volume ratio of 1:1, and pour into the beaker Add ferric chloride hexah...

Embodiment 3

[0052] A waterproof and self-cleaning fiber coating, mainly comprising: 70 parts of modified polyvinyl alcohol fiber, 8 parts of maleic anhydride, 18 parts of niobate, 2 parts of polyphosphoric acid and 12 parts of crosslinking liquid.

[0053] A preparation method of a waterproof self-cleaning fiber coating, the preparation method of the waterproof self-cleaning fiber coating mainly includes the following preparation steps:

[0054] (1) Mix the ferric chloride aqueous solution with the concentration of 0.4mol / L and the ferrous sulfate aqueous solution with the concentration of 0.4mol / L in the three-necked flask at a volume ratio of 14:9, and feed the three-necked flask with 50mL / min Nitrogen gas was passed into the three-necked flask at a high speed, and after removing the oxygen in the three-necked flask, the temperature of the materials in the three-necked flask was raised to 55°C, and ammonia water with a mass fraction of 25% was added to the three-necked flask at a rate o...

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Abstract

The invention discloses a waterproof self-cleaning fiber coating and a preparation method thereof, and relates to the technical field of new materials. The preparation method comprises the following steps: co-spinning oleic acid coated ferroferric oxide and polyvinyl alcohol to prepare modified polyvinyl alcohol fibers; mixing starch and ferroferric oxide to prepare starch-based magnetic particles; adsorbing metal ions via the starch-based magnetic particles, and inserting the starch-based magnetic particles into a niobate lamellar structure to prepare modified niobate; and finally, crushing the modified polyvinyl alcohol fibers, mixing the crushed modified polyvinyl alcohol fibers with the modified niobate, forming crosslinking under the action of polyphosphoric acid and maleic anhydride, and conducting coating to form a film, thereby acquiring the waterproof self-cleaning fiber coating. The waterproof self-cleaning fiber coating prepared by the preparation method disclosed by the invention has excellent waterproofness and good self-cleaning performance on inorganic and organic pollutants.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a waterproof and self-cleaning fiber coating and a preparation method thereof. Background technique [0002] Polyvinyl alcohol: organic compound, white flaky, flocculent or powdery solid, odorless. Soluble in water (above 95°C), slightly soluble in dimethyl sulfoxide, insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene dichloride Alcohol etc. Polyvinyl alcohol is an important chemical raw material for the manufacture of polyvinyl acetal, gasoline-resistant pipes and vinylon synthetic fibers, fabric treatment agents, emulsifiers, paper coatings, adhesives, glues, etc. [0003] When polyvinyl alcohol is used in fiber coatings, due to the good hydrophilicity of polyvinyl alcohol, the water resistance is not good, and most fiber coatings on the market do not have self-cleaning funct...

Claims

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Application Information

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IPC IPC(8): C09D129/04C09D7/61C09D7/62C09D7/65D01F6/50D01F1/10
Inventor 李威彤
Owner 徐州特之达包装科技有限公司
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