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A kind of anti-melting drip finishing method for polyester

An anti-droplet and polyester technology, which is applied in fiber treatment, textiles and papermaking, flame-retardant fibers, etc., can solve the problem that the anti-droplet effect of polyester is not ideal, and achieve flame-retardant effect without droplet and good flame-retardant effect , The effect of convenient sewage treatment

Active Publication Date: 2022-07-05
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, phytic acid has little effect on the char formation behavior of polyester, which shows that the anti-melt drop effect of phytic acid on polyester is not ideal.
However, there is no research on the use of Schiff base compounds in the flame-retardant finishing of polyester fabrics that belong to polyester.

Method used

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  • A kind of anti-melting drip finishing method for polyester
  • A kind of anti-melting drip finishing method for polyester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for anti-melting drop finishing of polyester, comprising the following steps:

[0038] Step (1): preparing a silane precursor containing a Schiff base structure; dissolving 22 parts by mass of 3-aminopropyltriethoxysilane and 9.8 parts by mass of p-hydroxybenzaldehyde in 90 parts by mass of ethanol, in 80 parts by mass The reaction temperature is selected for 4h, heating and stirring to generate a silane precursor containing a Schiff base structure, the reaction product is distilled under reduced pressure, and the solvent ethanol and unreacted 3-aminopropyltriethoxysilane are removed to obtain a Schiff base structure. silane precursor.

[0039] Step (2): prepare a phytic acid sol working solution; take 1.5 parts by mass of the silane precursor prepared in step (1), and dissolve the silane precursor containing the Schiff base structure prepared in step (1) in a co-mixture of ethanol and water. In the solvent, wherein the mol ratio of ethanol and water is 6:5, a...

Embodiment 2

[0048] A method for anti-melting drop finishing of polyester, comprising the following steps:

[0049] Step (1): preparing a silane precursor containing a Schiff base structure; dissolving silane containing an amino group and p-hydroxybenzaldehyde in ethanol, heating and stirring to generate a silane precursor containing a Schiff base structure, and removing ethanol and unreacted Silane;

[0050] Step (2): preparing a phytic acid sol working solution; dissolving the silane precursor containing the Schiff base structure prepared in step (1) in a co-solvent of ethanol and water; taking an aqueous solution of phytic acid, using triethylamine as pH Regulator: adjusting the pH of the phytic acid aqueous solution, adding the pH-adjusted phytic acid aqueous solution to the silica sol containing the Schiff base structure, and stirring at room temperature for 1 hour to obtain a phytic acid sol working solution;

[0051] Step (3): use the phytic acid sol working solution in step (2) to...

Embodiment 3

[0060] A method for anti-melting drop finishing of polyester, comprising the following steps:

[0061] Step (1): preparing a silane precursor containing a Schiff base structure; dissolving silane containing an amino group and p-hydroxybenzaldehyde in ethanol, heating and stirring to generate a silane precursor containing a Schiff base structure, and removing ethanol and unreacted Silane;

[0062] Step (2): preparing a phytic acid sol working solution; dissolving the silane precursor containing the Schiff base structure prepared in step (1) in a co-solvent of ethanol and water; taking an aqueous solution of phytic acid and using pyridine as a pH regulator , adjusting the pH of the phytic acid aqueous solution, adding the pH-adjusted phytic acid aqueous solution to the silica sol containing the Schiff base structure, and stirring at room temperature for 5 h to obtain a phytic acid sol working solution;

[0063] Step (3): use the phytic acid sol working solution in step (2) to f...

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Abstract

An anti-droplet finishing method for polyester, comprising the following steps: step (1); preparing a silane precursor containing a Schiff base structure; dissolving amino-containing silane and p-hydroxybenzaldehyde in ethanol, heating and stirring to generate Silane precursor with a Schiff base structure, removing ethanol and unreacted silane; step (2); preparing a phytic acid sol working solution; dissolving the silane precursor containing a Schiff base structure prepared in step (1) in ethanol and In the co-solvent of water; take the phytic acid aqueous solution, use a weakly alkaline organic solvent as a pH regulator, adjust the pH of the phytic acid aqueous solution, and add the phytic acid aqueous solution after the pH adjustment to the silica sol containing the Schiff base structure, at room temperature. Stirring for 1-5h to obtain a phytic acid sol working solution; step (3); using the phytic acid sol working solution in step (2) for flame-retardant finishing and processing of polyester.

Description

technical field [0001] The invention relates to an anti-melting drop finishing method for polyester. Background technique [0002] Polyester is the most widely used synthetic fiber and is used in various aspects of life due to its excellent properties. However, polyester is a combustible fiber, and it is easy to form melt droplets during the combustion process, which greatly limits its application. Therefore, it is necessary to carry out flame retardant and anti-droplet finishing. [0003] Phytic acid is an organophosphorus compound extracted from plant seeds. Because of its high P content, it has received extensive attention in the field of textile flame retardant. The layer-by-layer self-assembled coating of the components and the esterification product of phytic acid can greatly improve the combustion performance of polyester, giving it an excellent flame retardant effect. However, phytic acid has little effect on the carbonization behavior of polyester, which shows tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/79D06M13/292D06M101/32
CPCD06M11/79D06M13/292D06M2101/32D06M2200/30
Inventor 常硕沈加加
Owner JIAXING UNIV