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Branched polyamino long-chain alkyl polysiloxane and waterproof soft organosilicon finishing agent, and preparation methods thereof

A technology of polyamino long-chain alkyl polysiloxane and long-carbon chain alkyl diethoxysilane is applied in the field of organosilicon finishing agents, which can solve the problems of easy delamination, poor stability, white spots, etc. Excellent waterproofing agent, excellent softness, and the effect of improving water resistance

Active Publication Date: 2020-05-08
福建省晋江新德美化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing organic silicon waterproof softeners mainly have the following deficiencies: first, poor stability and easy delamination; produce white spots

Method used

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  • Branched polyamino long-chain alkyl polysiloxane and waterproof soft organosilicon finishing agent, and preparation methods thereof
  • Branched polyamino long-chain alkyl polysiloxane and waterproof soft organosilicon finishing agent, and preparation methods thereof
  • Branched polyamino long-chain alkyl polysiloxane and waterproof soft organosilicon finishing agent, and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of branched polyamino long-chain alkylpolysiloxane: 500g octamethylcyclotetrasiloxane, 20g methyloctadecyldiethoxysilane, 5g gamma-diethylenetriaminepropylmethyldimethoxysilane Add methoxysilane into the reaction vessel, at 80°C, under the action of basic catalyst potassium hydroxide (0.1g), prepolymerize for 0.5h, react under vacuum for 3h, add 1.5g of methyltriethoxy Silane, obtained after vacuum decompression reaction for 0.5h;

[0041] Compound branched polyamino long-chain alkyl polysiloxane and 56°C melting point paraffin at a mass ratio of 1:0.1, and heat to 60°C to obtain mixture I;

[0042] Add 1% AEO-7, 3% TO-3, 8% IPL-1005, 1% 1231 mixed emulsifier of the mass of mixture I, stir at 60°C for 30min, slowly add water dropwise until the solid content of the emulsion is 32%, and the waterproof Soft silicone finishing agent T732.

Embodiment 2

[0044] Preparation of branched polyamino long-chain alkylpolysiloxane: 500g octamethylcyclotetrasiloxane, 10g methyl octadecyldiethoxysilane, 15g gamma-diethylenetriaminepropylmethyl Dimethoxysilane was added to the reaction vessel, and at 80°C, under the action of the basic catalyst potassium hydroxide (0.1g), the prepolymerization reaction was performed for 1 hour, and the vacuum decompression reaction was carried out for 9 hours, and 0.5g of methyl triethoxy was added. Silane can be obtained by vacuum decompression reaction for 1h;

[0045] Compound branched polyamino long-chain alkyl polysiloxane and 56°C melting point paraffin at a mass ratio of 1:0.2, and heat to 60°C to obtain mixture I;

[0046] Add 2% AEO-7, 6% TO-3, 8% IPL-1005, 1% 1831 mixed emulsifier of the mass of mixture I, stir at 60°C for 30min, slowly add water dropwise until the solid content of the emulsion is 32%, and the waterproof Soft silicone finishing agent T732.

Embodiment 3

[0048]Preparation of branched polyamino long-chain alkylpolysiloxane: 500g octamethylcyclotetrasiloxane, 10g methyl octadecyldiethoxysilane, 15g gamma-diethylenetriaminepropylmethyl Add dimethoxysilane into the reaction vessel, at 80°C, under the action of basic catalyst potassium hydroxide (0.1g), prepolymerize for 1h, react under vacuum for 9h, add 2g of methyltriethoxysilane , vacuum decompression reaction 0.5h that is;

[0049] Compound branched polyamino long-chain alkyl polysiloxane and 60°C melting point paraffin in a mass ratio of 1:1, and heat to 60°C to obtain mixture I;

[0050] Add 10% AEO-7, 6% TO-3, 10% IPL-1005, and 1% 1631 mixed emulsifier of the mass of mixture I, stir at 60°C for 30 minutes, and slowly add water until the solid content of the emulsion is 32%. Soft silicone finishing agent T732.

[0051] Chemical characteristics and characterization of waterproof and soft silicone finishing agent T732:

[0052] Appearance: Observe directly with naked eyes. ...

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Abstract

The invention discloses a branched polyamino long-chain alkyl polysiloxane and a waterproof soft organosilicon finishing agent, and preparation methods thereof, and belongs to the technical field of organic silicon finishing agents. Gamma-diethylenetriamine propylmethyldimethoxysilane, long-carbon-chain alkyldiethoxysilane, methyltriethoxysilane and octamethyl cyclotetrasiloxane which are used asraw materials undergo a ring-opening polycondensation reaction under the catalytic action of potassium hydroxide in a bulk polymerization mode to prepare branched polyamino long-chain alkyl polysiloxane, the branched polyamino long-chain alkyl polysiloxaneis mixed with paraffin with a special melting point according to a certain ratio, and the obtained mixture is heated, and is emulsified by usinga mixed emulsifier to obtain a cationic organosilicon waterproof softener. And when the cationic organosilicon waterproof softener is applied to nylon fabrics in a manner of being combined with an organic fluorine waterproofing agent, the waterproofing property is further improved, and the result shows that the softness and the waterproofing agent are excellent.

Description

technical field [0001] The invention belongs to the technical field of organosilicon finishing agents, and in particular relates to a branched polyamino long-chain alkyl polysiloxane, a waterproof and soft organosilicon finishing agent and a preparation method thereof. Background technique [0002] At present, people have higher and higher requirements for clothing textiles. In addition to requiring comfortable wearing and fashionable colors, textiles are also required to have functions such as waterproof and oil-proof, wrinkle-resistant and moisture-permeable. [0003] At present, among the textile waterproof finishing agents sold in the market, mainly are organosilicon and organic fluorine, and the waterproof agents sold in large quantities in the market are mainly fluorine-containing waterproof agents. Although they have good waterproof effects, organic Fluorine water repellent is not only expensive, but also has high production cost, complex operation process, and is not...

Claims

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Application Information

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IPC IPC(8): C08G77/26D06M15/643D06M13/02D06M101/34
CPCC08G77/26D06M15/6436D06M13/02D06M2101/34D06M2200/12D06M2200/50
Inventor 黄其智秦小臣李志康周耀靓李杰国吴灿
Owner 福建省晋江新德美化工有限公司
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