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Method of preparing epoxy modified amino-silicone oil softening agent

A technology of amino silicone oil and epoxy modification, which is applied in textiles, papermaking, fiber treatment, etc. It can solve the problems of greasy hand feeling, easy yellowing of fabrics, and insufficient scratchiness, etc., and achieves small impact, high scratchiness, and stability sex high effect

Inactive Publication Date: 2012-07-25
深圳天鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many synthetic fabrics, such as polyester and polyester-cotton blends, are greasy after finishing with ordinary amino silicone oil emulsion, lack the style of natural fabrics, and are not scratchy enough. At the same time, the fabric is easy to turn yellow due to oxidation.

Method used

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  • Method of preparing epoxy modified amino-silicone oil softening agent
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  • Method of preparing epoxy modified amino-silicone oil softening agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation process of epoxy modified amino silicone oil softener is as follows: get 6 grams of N-(β-aminoethyl)-γ-aminopropyl methyl dimethoxysilane and 194 grams of methyl cyclosiloxane mixed single Mix with solid DMC, add 0.6g of tetramethylammonium hydroxide basic catalyst, stir and heat up, and control temperature T1 to 70°C;

[0038] Observe and judge whether the N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane and methylcyclosiloxane mixed monomer DMC are completely miscible, and continue to heat up after complete miscibility , and control T2 to be 90°C, at this time, the N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane reacts with methylcyclosiloxane mixed monomer DMC to generate Amino silicone oil and low boilers;

[0039] Vacuumize to make the vacuum degree 1 be 0.025mpa, and distill out the low boilers; increase the vacuum degree 2 to 0.075mpa until the material viscosity 1 reaches 1000cs. vacuum;

[0040] Lower the temperature and control T3 to ...

Embodiment 2

[0044] The preparation process of the epoxy-modified amino silicone oil softener of the present embodiment is as follows: get 10 grams of γ-diethylenetriaminopropylmethyldimethoxysilane and 190 grams of octamethylcyclotetrasiloxane D 4 Mix, and add 1.3g of tetramethylammonium hydroxide basic catalyst, stir and heat up, and control temperature T1 to 72°C;

[0045] Observation and judgment of the γ-diethylenetriaminopropylmethyldimethoxysilane and octamethylcyclotetrasiloxane D 4 Whether it is completely miscible, after it is completely miscible, continue to heat up, and control T2 to 140°C, at this time, the γ-diethylenetriaminopropylmethyldimethoxysilane and octamethylcyclotetrasiloxane D. 4 Carry out the reaction to generate amino silicone oil and low boilers;

[0046] Vacuumize to make its vacuum degree 1 be 0.03mpa, and distill out low boilers; then slowly increase vacuum degree 2 to 0.1mpa, until the material viscosity 1 reaches 5000cs, at this moment, the described low ...

Embodiment 3

[0051] The preparation method of the epoxy-modified amino silicone oil softener in this embodiment is as follows: take 12 grams of γ-piperazinylpropylmethyldimethoxysilane and 188 grams of low molecular weight linear hydroxyl-terminated silicone oil and mix them, and add 2.0 g tetramethylammonium hydroxide basic catalyst, stir and heat up, and control temperature T1 is 74 ℃;

[0052] Observe and judge whether the γ-piperazinylpropylmethyldimethoxysilane is completely miscible with the low-molecular-weight linear hydroxyl-terminated silicone oil. After complete miscibility, continue to heat up and control its temperature T2 to 120°C. , the γ-piperazinylpropylmethyldimethoxysilane reacts with a low molecular weight linear hydroxyl-terminated silicone oil to generate amino silicone oil and low boilers;

[0053] Vacuumize to make its vacuum degree 1 be 0.02mpa, and distill out low boilers; then slowly increase vacuum degree 2 to 0.05mpa, until the material viscosity 1 reaches 10000c...

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Abstract

The invention discloses a method for preparing epoxy modified amino silicon oil softening agent, which comprises the following steps: mixing amino silane coupling agent and polysiloxane monomer in an alkali catalyst at a temperature of between 70 and 80 DEG C; reacting the amino silane coupling agent and the polysiloxane monomer at a temperature of between 90 and 150 DEG C to generate amino silicon oil and low-boiling-point substances; distilling the low-boiling-point substances; reducing the temperature to between 40 and 80 DEG C to obtain the amino silicon oil; reacting the amino silicon oil and epoxy chloropropane in an inert solvent for 1 to 5 hours at a temperature of between 40 and 120 DEG C to generate epoxy modified amino silicon oil; removing the inert solvent to obtain the epoxymodified amino silicon oil; and adding the epoxy modified amino silicon oil into an emulsifying agent to emulsify, and adjusting the pH value to be 6 to 7 to obtain the epoxy modified amino silicon oil softening agent. The method reacts the amino silicon oil and the epoxy chloropropane in the inert solvent to obtain the epoxy modified amino silicon oil; and because the amino is increased with an epoxy group to active hydrogen on the amino, the epoxy modified amino silicon oil softening agent has better stability, softness and neatness.

Description

technical field [0001] The invention relates to a preparation method of a softener, in particular to a preparation method of an epoxy-modified amino silicone oil softener. Background technique [0002] Amino silicone oil has a good softening and softening effect on fabrics, so amino silicone oil emulsions are often used as fabric softeners. However, many synthetic fabrics such as polyester and polyester-cotton blends feel greasy after finishing with ordinary amino silicone oil emulsion, lack the style of natural fabrics, and are not scratchy enough. At the same time, the fabric is easy to turn yellow due to oxidation. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The object of the present invention is to provide a kind of preparation method of epoxy-modified amino silicone oil fabric softener, the fabric softener prepared by this method overcomes the technical defect existing in the existing fabric softener ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643C08G77/04C08G77/26
Inventor 丁之詹其乐邹小芬张书立
Owner 深圳天鼎新材料有限公司