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Low-yellowing hydrophilic block polyether amino silicone oil and preparation method thereof

A hydrophilic block, polyether amino technology, applied in fiber processing, textiles and papermaking, improved hand fibers, etc., can solve problems such as reducing softness, improve softness, avoid softness decline, and improve yellowing. performance effect

Active Publication Date: 2021-10-15
WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, the hydrophilicity of the target silicone oil can be improved, and on the other hand, its yellowing property can be reduced, but the softness performance will be greatly reduced

Method used

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  • Low-yellowing hydrophilic block polyether amino silicone oil and preparation method thereof
  • Low-yellowing hydrophilic block polyether amino silicone oil and preparation method thereof
  • Low-yellowing hydrophilic block polyether amino silicone oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 100 g parts of polyether-terminated epoxy silicone oil (x=10, y=0, z=30) and 6.61 parts of diethylenetriamine (64 mmol) into a four-necked flask equipped with a thermometer and a reflux condenser, without adding Solvent A, stir and react at 60°C for 3 hours, then add 5.47 parts of stearic acid (19mmol), heat up to 120°C, carry out vacuum dehydration until no water comes out, cool down to room temperature 25°C, add diethylene glycol monobutyl ether 10 parts and 16.18 parts (128 mmol) of dimethyl sulfate, and stirred to obtain a low-yellowing hydrophilic block polyether amino silicone oil.

Embodiment 2

[0028] Add 100 g parts of polyether-terminated epoxy silicone oil (x=25, y=25, z=108) and 1.41 parts of diethylenetriamine (14 mmol) into a four-necked flask equipped with a thermometer and a reflux condenser, and stir Under the conditions, add 10 parts of solvent ethylene glycol monobutyl ether, stir and react at 80 ° C for 6 hours, then add 2.19 parts (11 mmol) of lauric acid, raise the temperature to 180 ° C, carry out vacuum dehydration until no moisture comes out, and cool down to room temperature 60 ℃, add 20 parts of ethylene glycol butyl ether and 2.58 parts (21 mmol) of dimethyl sulfate, and stir to obtain a low-yellowing hydrophilic block polyether amino silicone oil.

Embodiment 3

[0030] Add 100 g parts of polyether-terminated epoxy silicone oil (x=13, y=6, z=135) and 1.38 parts of diethylenetriamine (13 mmol) into a four-necked flask equipped with a thermometer and a reflux condenser, and stir Under the conditions, add 10 parts of solvent ethylene glycol phenyl ether, stir and react at 80 ° C for 8 hours, then add 0.77 parts (11 mmol) of butyrolactone, raise the temperature to 180 ° C, carry out vacuum dehydration until no moisture comes out, and cool down to room temperature 60 ℃, add 20 parts of ethylene glycol butyl ether and 2.53 parts of dimethyl sulfate (20 mmol), and stir to obtain a low-yellowing hydrophilic block polyether amino silicone oil.

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Abstract

The invention provides low-yellowing hydrophilic block polyether amino silicone oil and a preparation method thereof. The method comprises the following steps of: feeding epoxy-terminated polyether silicone oil and diethylenetriamine according to a molar ratio of 1: (1.2-2.1), adding a solvent A (accounting for 0-20% of the weight of reactants), heating to 60-90 DEG C, reacting for 3-12 hours, adding fatty acid or fatty acid lactone (0.3-1.0 times of diethylenetriamine in number of moles), heating to 120-220 DEG C, vacuumizing and dehydrating until no water is discharged, cooling to 25-80 DEG C, and adding a solvent B (10-50%) and dimethyl sulfate (0.5-2.0 times of diethylenetriamine in number of moles) to obtain the low-yellowing hydrophilic block polyether amino silicone oil. A quaternary ammonium salt structure is introduced to replace the original primary and secondary amine structure, so that the yellowing performance of the block polyether amino silicone oil can be improved, and the hydrophilic performance of the silicone oil can also be improved. On the other hand, long-chain alkyl is introduced into an organic silicon main chain, so that the softness of the silicone oil can be further improved, and the problem that the softness is reduced due to a quaternary ammonium salt structure is avoided.

Description

technical field [0001] The invention relates to the technical field of silicone oil synthesis, in particular to a low-yellowing hydrophilic block polyether amino silicone oil and a preparation method thereof. Background technique [0002] Ternary block silicone oil is mainly composed of polysiloxane segment, polyether segment and amino group. Compared with traditional amino silicone oil, the polyether segment of ternary block silicone oil can not only provide emulsification aid, but also endow a unique style of hand finishing. However, the primary amine group on the main chain of the block silicone oil still has the same fabric "yellowing" problem as the amino silicone oil. Therefore, it is possible to replace the primary amine group by introducing a quaternary ammonium group on the main chain of the block polyether amino silicone oil. Mainly use epoxy silicone oil and polyether amine as raw materials, and use quaternization reagents for cationic modification to obtain main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46D06M15/647
CPCC08G77/46D06M15/647D06M2200/50
Inventor 林伟鸿郭玉良黄强谢树明
Owner WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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