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Quaternary ammonium polyether solution and preparation method thereof

A technology of quaternized polyether and quaternized reagent, applied in the field of quaternized polyether solution and its preparation, can solve the problems of low hydrophilicity, long reaction cycle, weak cationicity, etc., and achieve cationic strength conveniently Adjustable, short preparation cycle, small molecular weight effect

Active Publication Date: 2015-05-20
DONGGUAN BAOLIMEI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method has many steps, many side reactions, complicated operation and certain risks, and the reaction cycle is long.
In addition, the product in the literature is a primary amino polyether and most of the amino groups are located in the side chain of the product molecule, which not only has a large molecular weight, but also has a weak cationic property and low hydrophilicity, so it is not suitable for the treatment of water-soluble anionic dyes. Carry out cationic modification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A preparation method of a quaternized polyether solution, the quaternized polyether solution is made of the following components, comprising:

[0058] Polyethylene glycol with a molecular weight of 200: 1.0mol (200.0g);

[0059] Diisocyanate: 1.0mol (222.3g) of isophorone diisocyanate;

[0060] Tertiary amine: N-butyldiethanolamine 1.0mol (161.2g);

[0061] Quaternizing reagent: bromobutane 1.0mol (137.0g);

[0062] Catalyst: stannous octoate (0.13g);

[0063] Thinner: acetone (200g);

[0064] Neutralizer: acetic acid (161.2g);

[0065] Water: soft water (361.0 g) with total hardness less than 100 ppm CaO.

[0066] The preparation method comprises the following steps:

[0067] S1 dehydration treatment, in this step, polyether glycol is subjected to dehydration pretreatment under vacuum and heating conditions, specifically implemented according to the following steps:

[0068] S11 puts polyether glycol into reaction device;

[0069] S12 Heat it to 90°C and treat ...

Embodiment 2

[0086] A preparation method of a quaternized polyether solution, the quaternized polyether solution is made of the following components, comprising:

[0087] Polyether diol: polyethylene glycol 1.0mol (400.0g) with a molecular weight of 400;

[0088] Diisocyanate: toluene diisocyanate 1.5mol (261.2g);

[0089] Tertiary amine: N-methyldiethanolamine 1.0mol (119.2g);

[0090] Quaternizing reagent: 0.8mol (109.6g) of bromobutane;

[0091] Catalyst: stannous octoate (0.33g);

[0092] Diluent: isopropanol (310.0g);

[0093] Neutralizer: acetic acid (103.0g);

[0094] Water: soft water (510.0 g) with total hardness less than 100 ppm CaO.

[0095] The preparation method comprises the following steps:

[0096] S1 dehydration treatment, in this step, polyether glycol is subjected to dehydration pretreatment under vacuum and heating conditions, specifically implemented according to the following steps:

[0097] S11 puts polyether glycol into reaction device;

[0098] S12 Heat it...

Embodiment 3

[0115] The raw material of this preparation method comprises:

[0116] Polyether diol: 1.0mol (600.0g) of polyethylene glycol with a molecular weight of 600

[0117] Diisocyanate: 1,6-hexamethylene diisocyanate 2.0mol (336.0g)

[0118] Tertiary amine: N-ethyldiethanolamine 2.0mol (268.4g)

[0119] Quaternizing reagent: dimethyl sulfate 1.5mol (189.2g)

[0120] Catalyst: dibutyltin dilaurate (0.30g)

[0121] Diluent: Acetone (380.0g)

[0122] Neutralizer: formic acid (188.0g)

[0123] Water: soft water with total hardness less than 100ppm CaO (820.0g)

[0124] The concrete steps of this preparation method:

[0125] S1 dehydration treatment, in this step, polyether glycol is subjected to dehydration pretreatment under vacuum and heating conditions, specifically implemented according to the following steps:

[0126] S11 puts polyether glycol into reaction device;

[0127] S12 Heat it to 100°C, and treat it at a vacuum of -0.098MPa for 80min.

[0128] S2 prepolymerization r...

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Abstract

The invention discloses a quaternary ammonium polyether solution used for carrying out non-ionic or weak cationic modification on water-soluble anionic dyes for dyeing of cellulosic fiber textiles and a preparation method thereof. The preparation method comprises the following steps: dewatering polyether glycol; reacting the dewatered polyether glycol with diisocyanate under the catalytic action of a catalyst to prepare a primary polymer of the diisocyanate and the polyether glycol; reacting the primary polymer of the diisocyanate and the polyether glycol with tertiary amine to prepare polyether amine; reacting the polyether amine with a quaternary ammonium reagent to prepare quaternary ammonium polyether; mixing and dispering the quaternary ammonium polyether with a diluents, a neutralizer and water to prepare the quaternary ammonium polyether solution. After the quaternary ammonium polyether solution prepared in the invention is used for modifying water-soluble anionic dyes, the salt dosage of the water-soluble anionic dyes for dyeing cellulosic fibers is decreased by more than 30%, and the color depths of the dyed textiles are not reduced.

Description

【Technical field】 [0001] The invention belongs to the field of textile dyeing supplies, and relates to a quaternized polyether solution, in particular to a quaternized polyether solution and a preparation method thereof, which is used for non-conducting water-soluble anionic dyes used for dyeing cellulose fiber textiles. Ionized or weakly cationic modification. 【Background technique】 [0002] At present, various water-soluble anionic dyes are widely used in the dyeing of cellulose fiber textiles. In order to overcome the repulsion between the anionic dye molecules and the negatively charged cellulose fibers, and promote the rapid and massive adsorption of the dyes to the fibers, it is necessary to use a high concentration of neutral electrolyte in the dyeing bath. In order to solve or reduce the environmental pollution caused by neutral electrolytes, polyamine chemicals are commonly used to cationic modify cellulose fibers or anionic dyes. Among them, amine-containing poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/83C08G18/66C08G18/48C08G18/32C08G18/10C08G18/08D06P1/52D06P1/00D06P3/60
CPCC08G18/3203C08G18/833D06P1/00D06P1/5285D06P3/60
Inventor 权衡万龙万光凤刘俊琦
Owner DONGGUAN BAOLIMEI CHEM
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