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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  • Abstract
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  • 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 affec

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

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[0045] Example 1

[0046] A method for preparing spinning dope of catalytic material, firstly prepare a water-soluble supported Pt 2+ The hybrid material is mixed with an aqueous solution of amino-containing chitosan with a concentration of 0.5% by mass and an aqueous solution of carboxyl-containing n-butyric acid with a concentration of 3% by mass at 20°C. The relative molecular weight is 240,000, the molecular weight of n-butyric acid is 88.1, the molar ratio of chitosan to n-butyric acid is 1:0.3, accompanied by stirring; the pH value of the reaction system is adjusted to 4 with 0.1 mol / L HCl solution, and then PtCl with a concentration of 0.005g / mL is added dropwise to the mixture 2 Solution in which PtCl 2 The molar ratio of chitosan to chitosan is 0.1:1. After the addition is complete, stir for 1 hour to obtain a water-soluble supported Pt with a mass percentage concentration of 0.5%. 2+ The hybrid material; then, the water-soluble Pt 2+ The hybrid material and the weight-av...

Example Embodiment

[0047] Example 2

[0048] A method for preparing spinning dope of catalytic material, firstly prepare a water-soluble supported Pd 2+ The hybrid material is mixed with an aqueous solution of amino-containing carboxymethyl chitosan with a concentration of 3% by mass and an aqueous solution of carboxyl-containing n-valeric acid with a concentration of 10% by mass at 60°C. 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 to n-valeric acid is 1:1, accompanied by stirring; 0.15 mol / L H 2 SO 4 The solution adjusts the pH value of the reaction system to 6, and then dropwise add PdCl with a concentration of 2g / mL to the mixture 2 Solution in which PdCl 2 The molar ratio with carboxymethyl chitosan is 10:1, and after the addition is complete, continue to stir for 2h to obtain a water-soluble loaded Pd with a mass percentage concentration of 10.5% 2+ Hybrid material; load Pd with water-soluble...

Example Embodiment

[0049] Example 3

[0050] A method for preparing spinning dope of catalytic material, firstly prepare a water-soluble supported Cu 2+ In the hybrid material, at 30℃, mix the amino-containing polyacrylamide aqueous solution with a mass percentage concentration of 1% and the carboxyl-containing n-hexanoic acid aqueous solution with a mass percentage concentration of 4%, where 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, accompanied by stirring; using 0.3mol / L HNO 3 The solution adjusts the pH of the reaction system to 5, and then dropwise add CuSO with a concentration of 0.008g / mL to the mixture 4 Solution in which CuSO 4 The molar ratio to polyacrylamide is 0.5:1. After the addition is complete, continue to stir for 1.1h to obtain a water-soluble supported Cu with a mass percentage concentration of 0.9% 2+ Hybrid material; load the water-soluble Cu 2+...

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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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