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Anti-molten-drop finishing method for polyester

An anti-melting and polyester technology, applied in fiber processing, textile and papermaking, fiber type, etc., can solve the problem that the anti-melting effect of polyester is not ideal.

Active Publication Date: 2021-06-08
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of anti-droplet finishing method to polyester, comprises the following steps:

[0038] Step (1): preparing a silane precursor containing a Schiff base structure; dissolving 22 parts by mass of 3-aminopropylethoxysilane and 9.8 parts by mass of p-hydroxybenzaldehyde in 90 parts by mass of ethanol, at 80 ° C Select the temperature and react for 4 hours, heat and stir to generate a silane precursor containing a Schiff base structure, distill the reaction product under reduced pressure, remove solvent ethanol and unreacted 3-aminopropylethoxysilane, and obtain a silane containing a Schiff base structure Precursor.

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

Embodiment 2

[0048] A kind of anti-droplet finishing method to polyester, comprises the following steps:

[0049] Step (1): Prepare a silane precursor containing a Schiff base structure; dissolve amino-containing silane and p-hydroxybenzaldehyde in ethanol, heat and stir to generate a silane precursor containing a Schiff base structure, and remove ethanol and unreacted Silane;

[0050] Step (2): prepare phytic acid sol working solution; dissolve the silane precursor containing Schiff base structure prepared in step (1) in the co-solvent of ethanol and water; take phytic acid aqueous solution, take 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 the prepared phytic acid sol working solution;

[0051] Step (3): Use the phytic acid sol working solution in step (2) to process the polyester flame-r...

Embodiment 3

[0060] A kind of anti-droplet finishing method to polyester, comprises the following steps:

[0061] Step (1): Prepare a silane precursor containing a Schiff base structure; dissolve amino-containing silane and p-hydroxybenzaldehyde in ethanol, heat and stir to generate a silane precursor containing a Schiff base structure, and remove ethanol and unreacted Silane;

[0062] Step (2): prepare phytic acid sol working solution; dissolve the silane precursor containing Schiff base structure prepared in step (1) in the co-solvent of ethanol and water; take phytic acid aqueous solution, use pyridine 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 5 hours to obtain the prepared phytic acid sol working solution;

[0063] Step (3): Use the phytic acid sol working solution in step (2) to process the polyester flame-retar...

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Abstract

The invention relates to an anti-molten-drop finishing method for polyester. The method comprises the following steps of 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 a silane precursor containing the Schiff base structure, and removing ethanol and unreacted silane; step (2), preparing a phytic acid sol working solution; dissolving the silane precursor containing the Schiff base structure prepared in the step (1) in a cosolvent of ethanol and water; taking a phytic acid aqueous solution, adjusting the pH of the phytic acid aqueous solution by taking a weakly alkaline organic solvent as a pH adjusting agent, adding the pH-adjusted phytic acid aqueous solution into the silica sol containing the Schiff base structure, and stirring at room temperature for 1-5 hours to obtain the prepared phytic acid sol working solution; and step (3), performing flame-retardant finishing processing on polyester by adopting the phytic acid sol working solution in the step (2).

Description

technical field [0001] The invention relates to an anti-melt 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 performance. However, polyester is a combustible fiber, and it is easy to form droplets during combustion, which greatly limits its application occasions. Therefore, it is necessary to carry out flame-retardant and anti-melt droplet finishing on it. [0003] Phytic acid is an organophosphorus compound extracted from plant seeds. Because of its high P content, it has attracted extensive attention in the field of flame retardant textiles. The research results show that phytic acid aqueous solution, phytic acid silica sol, The layer-by-layer self-assembled coating of components and the esterification product of phytic acid can greatly improve the combustion performance of polyester and endow it with excellent flame-retardant effect. However, ...

Claims

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Application Information

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