Preparation method of polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent

Abstract

The invention discloses a preparation method of a polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent, and belongs to the technical field of textile and chemical industry. The preparation method comprises the steps that hexamethylenediamine, adipic acid, double-end carboxyl polyethylene glycol and double-end amino polyether silicone oil are matched and mixed to be uniform according to the amount of substance, nitrogen protection is introduced in, the temperature is slowly increased for a reaction, phosphorous acid and a manganese dioxide solid body are added, and the temperature is increased for normal-pressure condensation polymerization; a sodium chloride solid body with the same mass as the phosphorous acid is added, slow stirring, cooling and standing layering are carried out, then, a water layer is removed, and the polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent is obtained. On the basis of the prior art, the reaction condition is optimized, and the manganese dioxide solid body is added as the catalyst for condensation polymerization, so that the reaction is carried out at normal pressure, and industrial production is facilitated; meanwhile, the prepared finishing agent has the good hydrophilic finishing effect on fabric, has the good improvement on the fabric soft hand feel, antistatic property and washing resistance, and is high in economic benefit.

Description

Technical field:

[0001] The invention discloses a preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, which belongs to the technical field of textile chemical industry. Background technique:

[0002] The hydrophilicity of synthetic fibers is related to the macromolecular structure of fibers. The hydrophilicity of nylon fiber depends on the polar amide group -CONH- and non-polar methylene -CH in the molecule. 2 change in proportion. The smaller the number of carbon atoms between the amide groups in the macromolecule, the higher the moisture regain; the more the carbon atoms, the smaller the moisture regain. Therefore, changing the main chain structure of polyamide macromolecules and reducing the number of carbon atoms between amide groups is an important method to improve the moisture absorption rate of polyamide fibers.

[0003] Hydrophilic finishing agents can be roughly divided into: acrylate hydrophilic finish...

Examples

Embodiment 1

[0032] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: 5:2:0.8 Mix evenly, pass nitrogen protection, slowly heat up to 200°C, keep warm for 15 minutes;

[0033] Add 1.5% of phosphorous acid and 0.5% of manganese dioxide solid in the total mass of the mixture of hexamethylenediamine, adipic acid, double-ended carboxyl polyethylene glycol and double-ended amino polyether silicone oil, and heat up to 270°C for normal compression polymerization for 1.5 h;

[0034] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[003...

Embodiment 2

[0038] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: Mix 5:3:1 evenly, pass nitrogen protection, slowly heat up to 200°C, and keep warm for 25 minutes;

[0039] Add hexamethylenediamine, adipic acid, double-terminated carboxyl polyethylene glycol and double-terminated amino polyether silicone oil mixture, 1.5% of phosphorous acid and 1% of manganese dioxide solid, and heat up to 300°C for normal compression polymerization for 2 hours ;

[0040] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[0041] The polyami...

Embodiment 3

[0044] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: Mix 5:2:1 evenly, pass nitrogen protection, slowly heat up to 200°C, and keep warm for 15 minutes;

[0045] Add 1.5% of phosphorous acid and 0.5% of manganese dioxide solid in the total mass of the mixture of hexamethylenediamine, adipic acid, double-ended carboxyl polyethylene glycol and double-ended amino polyether silicone oil, and heat up to 300°C for normal compression polymerization for 1.5 h;

[0046] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[0...

Technical field:

[0001] The invention discloses a preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, which belongs to the technical field of textile chemical industry. Background technique:

[0002] The hydrophilicity of synthetic fibers is related to the macromolecular structure of fibers. The hydrophilicity of nylon fiber depends on the polar amide group -CONH- and non-polar methylene -CH in the molecule. 2 change in proportion. The smaller the number of carbon atoms between the amide groups in the macromolecule, the higher the moisture regain; the more the carbon atoms, the smaller the moisture regain. Therefore, changing the main chain structure of polyamide macromolecules and reducing the number of carbon atoms between amide groups is an important method to improve the moisture absorption rate of polyamide fibers.

[0003] Hydrophilic finishing agents can be roughly divided into: acrylate hydrophilic finish...

Examples

Embodiment 1

[0032] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: 5:2:0.8 Mix evenly, pass nitrogen protection, slowly heat up to 200°C, keep warm for 15 minutes;

[0033] Add 1.5% of phosphorous acid and 0.5% of manganese dioxide solid in the total mass of the mixture of hexamethylenediamine, adipic acid, double-ended carboxyl polyethylene glycol and double-ended amino polyether silicone oil, and heat up to 270°C for normal compression polymerization for 1.5 h;

[0034] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[003...

Embodiment 2

[0038] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: Mix 5:3:1 evenly, pass nitrogen protection, slowly heat up to 200°C, and keep warm for 25 minutes;

[0039] Add hexamethylenediamine, adipic acid, double-terminated carboxyl polyethylene glycol and double-terminated amino polyether silicone oil mixture, 1.5% of phosphorous acid and 1% of manganese dioxide solid, and heat up to 300°C for normal compression polymerization for 2 hours ;

[0040] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[0041] The polyami...

Embodiment 3

[0044] A preparation method of a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent, with hexamethylenediamine, adipic acid, double-terminal carboxyl polyethylene glycol and double-terminal amino polyether silicone oil according to the ratio of the amount of substances 1: Mix 5:2:1 evenly, pass nitrogen protection, slowly heat up to 200°C, and keep warm for 15 minutes;

[0045] Add 1.5% of phosphorous acid and 0.5% of manganese dioxide solid in the total mass of the mixture of hexamethylenediamine, adipic acid, double-ended carboxyl polyethylene glycol and double-ended amino polyether silicone oil, and heat up to 300°C for normal compression polymerization for 1.5 h;

[0046] Add phosphorous acid and other solid sodium chloride, slowly stir and cool down to 100 degrees Celsius, and remove the water layer after standing to separate layers to obtain a polyamide polyether silicone ternary copolymerization type hydrophilic finishing agent.

[0...

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