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Sodium alga acid flame retardant fibers loaded with metal ions and manufacture method thereof

A sodium alginate and metal-loaded technology, which is applied in the manufacture of fire-resistant and flame-retardant filaments, alginate artificial filaments, wet spinning, etc., can solve problems such as poor stability and poor dispersion of metal nanoparticles, and achieve breaking strength High, easy post-processing, environmental pollution-free effect

Active Publication Date: 2016-08-03
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor dispersion and poor stability of metal nanoparticles in the existing sodium alginate flame-retardant fibers, to provide a sodium alginate flame-retardant fiber loaded with metal ions and its preparation method

Method used

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  • Sodium alga acid flame retardant fibers loaded with metal ions and manufacture method thereof
  • Sodium alga acid flame retardant fibers loaded with metal ions and manufacture method thereof
  • Sodium alga acid flame retardant fibers loaded with metal ions and manufacture method thereof

Examples

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Embodiment 1

[0053] A loaded Ag + The preparation method of the sodium alginate flame retardant fiber, under the condition of 20 ℃, the aqueous solution of the sodium alginate with the mass percentage concentration of 0.5% is mixed with the aqueous solution of the n-pentylamine with the mass percentage concentration of 3%, and the sodium alginate and the normal The molar ratio of pentylamine is 1:0.3, and the relative molecular weights of sodium alginate and n-pentylamine are 25000 and 87.16 respectively. When mixing, the pH value of the system is adjusted to 4 with 0.1mol / L HCl solution, and then to AgNO with a concentration of 0.005 g / mL was added dropwise to the mixture 3 Aqueous solution, AgNO 3 The molar ratio to sodium alginate is 0.1:1, stir after the dropwise addition, and the duration is 1h, that is, the loaded Ag + The aqueous solution of the hybrid material of sodium alginate, its mass percent concentration is 0.5%, continuously stirring and adding precipitant ethanol, precipi...

Embodiment 2

[0056] A loaded Fe 2+ The preparation method of the sodium alginate flame retardant fiber, under the condition of 60 ℃, the aqueous solution of sodium alginate with a mass percentage concentration of 0.6% is mixed with the aqueous solution of n-butylamine with a mass percentage concentration of 6%, and the sodium alginate and n-butylamine are mixed. The molar ratio of butylamine is 1:0.7, and the relative molecular weights of sodium alginate and n-butylamine are 250,000 and 73.14 respectively. When mixing, the pH value of the system is adjusted to 6 with 0.15mol / L HCl solution, and then to FeCl with a concentration of 0.2 g / mL was added dropwise to the mixture 2 Aqueous solution, FeCl 2 The molar ratio to sodium alginate is 2.5:1, stir after the dropwise addition, and the duration is 2h, that is, the loaded Fe 2+ The aqueous solution of hybrid material of sodium alginate, its mass percent concentration is 1.2%, continuously stirs and adds precipitant acetone, precipitant ace...

Embodiment 3

[0059] A loaded Fe 3+ The preparation method of the sodium alginate flame retardant fiber, under the condition of 25 ℃, the aqueous solution of sodium alginate with a mass percentage concentration of 1% is mixed with the aqueous solution of polyetheramine D400 with a mass percentage concentration of 4%, and the sodium alginate and The molar ratio of polyetheramine D400 is 1:0.5, and the relative molecular weights of sodium alginate and polyetheramine D400 are 10000 and 400 respectively. When mixing, the pH value of the system is adjusted to 6. Then add FeCl with a concentration of 0.1g / mL dropwise to the mixture 3 Aqueous solution, FeCl 3 The molar ratio to sodium alginate is 0.5:1, stir after the dropwise addition, and the duration is 1.5h, that is, the loaded Fe 3+ The aqueous solution of hybrid material of sodium alginate, its mass percent concentration is 1.5%, continuously stirs and adds precipitant acetone, precipitant acetone and load Fe 3+ The volume ratio of the aq...

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Abstract

The invention provides sodium alga acid flame retardant fibers loaded with metal ions and a preparation method thereof. The sodium alga acid flame retardant fibers are prepared by the following steps: dissolving a water soluble sodium alga acid hybrid material loaded with metal ions in water to prepare a spinning solution, and performing a wet spinning process, wherein the water soluble sodium alga acid hybrid material loaded with metal ions is composed of sodium alga acid, stabilizer molecules and the metal ions with flame retardant effect. The fibers produced by the method disclosed by the invention have the characteristics of high flame retardant property and high breaking strength. The limit oxygen index of the fibers can be 34% and above, the tensile strength of the fibers is higher than 3.5cN / tex, and the linear density is 2.2-3.5dtex.

Description

technical field [0001] The invention relates to a sodium alginate flame-retardant fiber loaded with metal ions and a preparation method thereof, in particular to a kind of alginic acid prepared by a wet spinning method using a sodium alginate hybrid material loaded with metal ions as a spinning raw material Sodium flame retardant fiber material. Background technique [0002] In work clothing, firefighter clothing, fabric systems, institutional interiors, institutional and commercial carpets, transportation, military clothing, and bedding, textiles require relatively high flame retardancy. Research on the flame retardant properties of fibers and textiles has also received people's attention. However, environmental regulations restrict the selection of certain halogen-based flame-retardant materials, and the recycling of waste flame-retardant materials is even more urgent. The flame retardant materials used in the future must meet the requirements of both aspects at the same...

Claims

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Application Information

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IPC IPC(8): D01F9/04D01F1/07D01D5/06
CPCD01D5/06D01F1/07D01F9/04
Inventor 孙宾纪晓寰朱美芳王斌肖露露周伊李浩洋
Owner DONGHUA UNIV
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