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Spinning stock solution of catalytic material and preparation method thereof

A spinning dope, catalytic material technology, applied in the direction of conjugated rayon, chemical characteristics of fibers, textiles and papermaking, etc., can solve the problem of not being able to achieve uniform loading, and achieve large-scale industrial production, easy separation and reuse. , Easy to operate effect

Active Publication Date: 2016-09-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the chitosan catalytic material loaded with metal ions prepared by this method is affected by the condensed state structure of the polymer material, and cannot achieve uniform loading.

Method used

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  • Spinning stock solution of catalytic material and preparation method thereof
  • Spinning stock solution of catalytic material and preparation method thereof
  • Spinning stock solution of catalytic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of preparation method of catalytic material spinning dope, firstly prepare a kind of water-soluble loading Pt 2+ The hybrid material, under the condition of 20 ℃, the mass percentage concentration is 0.5% amino-containing chitosan aqueous solution and the mass percentage concentration is 3% carboxyl-containing n-butyric acid aqueous solution by mixing, wherein, the chitosan Relative molecular weight is 240000, and the molecular weight of n-butyric acid is 88.1, and the mol ratio of chitosan and n-butyric acid is 1:0.3, with stirring; Adopt the pH value of the HCl solution adjustment reaction system of 0.1mol / L to 4, then to PtCl with a concentration of 0.005g / mL was added dropwise to the mixture 2 solution, where PtCl 2 The molar ratio to chitosan is 0.1:1, and after the dropwise addition is completed, stir for 1 hour to obtain a water-soluble loaded Pt with a mass percent concentration of 0.5%. 2+ hybrid material; then, the water-soluble loaded Pt 2+ The hybr...

Embodiment 2

[0048] A kind of preparation method of catalytic material spinning dope, firstly prepare a kind of water-soluble loading Pd 2+ The hybrid material, under the condition of 60 ℃, the carboxymethyl chitosan aqueous solution that the mass percent concentration is 3% is mixed with the n-valeric acid aqueous solution that contains carboxyl group that the mass percent concentration is 10%, wherein, carboxymethyl The relative molecular weight of base chitosan is 10000, the molecular weight of n-valeric acid is 102.13, the molar ratio of carboxymethyl chitosan and n-valeric acid is 1:1, accompanied by stirring; adopt 0.15mol / L H 2 SO 4 The solution adjusted the pH value of the reaction system to 6, and then added dropwise the PdCl concentration of 2g / mL to the mixed solution 2 solution, where PdCl 2 The molar ratio with carboxymethyl chitosan is 10:1, continue stirring for 2h after the dropwise addition, to obtain a water-soluble loaded Pd with a mass percent concentration of 10.5%. ...

Embodiment 3

[0050] A kind of preparation method of catalytic material spinning dope, first prepares a kind of water-soluble loading Cu 2+ For the hybrid material, under the condition of 30°C, mix the amino group-containing polyacrylamide aqueous solution with a mass percent concentration of 1% and the carboxyl-containing n-hexanoic acid aqueous solution with a mass percent concentration of 4%, wherein the relative molecular weight of the polyacrylamide is 1000000, the molecular weight of n-hexanoic acid is 115.15, the molar ratio of polyacrylamide and n-hexanoic acid is 1:0.4, with stirring; use 0.3mol / L HNO 3 The solution adjusts the pH value of the reaction system to 5, and then drips CuSO with a concentration of 0.008g / mL in the mixed solution 4 solution, where CuSO 4 The molar ratio of polyacrylamide to polyacrylamide is 0.5:1, continue to stir for 1.1h after the dropwise addition, to obtain a water-soluble loaded Cu with a mass percentage concentration of 0.9%. 2+ The hybrid materi...

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Abstract

The present invention relates to a spinning stock solution of a catalytic material and a preparation method thereof. The spinning stock solution comprises a water-soluble metal ion-loaded hybrid material aqueous solution and a water-soluble chitosan. The water-soluble chitosan is dissolved in the water-soluble metal ion-loaded hybrid material aqueous solution, and then the obtained product is stirred at the room temperature to obtain the spinning stock solution of the catalytic material. The prepared spinning stock solution of the catalytic material is good in spinnability, and easy in spinning process. The catalytic material prepared through the electrostatic spinning process is controllable in catalytic effect and has a good catalytic effect for the synthetic reaction of a variety of polymers.

Description

technical field [0001] The invention relates to a spinning stock solution of a catalytic material and a preparation method thereof, in particular to a stable spinning stock solution of a catalytic material and a preparation method thereof. Background technique [0002] Chitosan (CS) is the product of deacetylation of chitin. Because of its excellent antibacterial properties, biocompatibility and degradability, it is widely used in the field of biomedicine. At the same time, CS has a good chelating ability for metal ions and can be used as a carrier for polymer catalytic materials. Its complexes can be used as Catalyst and initiator for vinyl monomer polymerization, ring-opening polymerization, esterification, etherification, hydrogenation, oxidative coupling and other reactions. According to the existing patent reports, the common preparation method of the chitosan catalytic material loaded with metal ions is the adsorption method. The general steps are: first make chitosa...

Claims

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Application Information

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IPC IPC(8): D01F8/18D01F8/02D01F8/10
CPCD01F8/02D01F8/10D01F8/18
Inventor 孙宾纪晓寰朱美芳高冉陆腱杨世远
Owner DONGHUA UNIV
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