A kind of preparation method of high permeability amino silicone oil

An amino silicone oil, high transmittance technology, applied in animal fibers, fiber treatment, textiles and papermaking, etc., can solve the problems of affecting the use effect, poor transparency, uneven distribution of amino groups, etc., to achieve excellent results, excellent stability The effect of uniform distribution of sex and amino groups

An amino silicone oil, high transmittance technology, applied in animal fibers, fiber treatment, textiles and papermaking, etc., can solve the problems of affecting the use effect, poor transparency, uneven distribution of amino groups, etc., to achieve excellent results, excellent stability The effect of uniform distribution of sex and amino groups

CN108912333BActive Publication Date: 2021-02-23SHANGHAI RESIN FACTORY
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  • A kind of preparation method of high permeability amino silicone oil
  • A kind of preparation method of high permeability amino silicone oil
  • A kind of preparation method of high permeability amino silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. Preparation of coupling agent hydrolyzate

[0026] Mix 20 parts of KH602 and 18 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis, the hydrolysis temperature is 10°C, and the hydrolysis time is 2 hours; then maintain at -0.09MPa for 1 hour to remove low-molecular compounds; the viscosity obtained after standing still is 300mPa·s (25°C) KH602 hydrolyzate mainly composed of silicon glycol.

Embodiment 2

[0028] a. Preparation of coupling agent hydrolyzate

[0029] Mix 18 parts of KH602 and 13.5 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis, the hydrolysis temperature is 15°C, and the hydrolysis time is 1h; then maintain at -0.09MPa for 1h to remove low-molecular compounds; the viscosity obtained after standing still is 200mPa·s (25°C) KH602 hydrolyzate mainly composed of silicon glycol.

Embodiment 3

[0031] a. Preparation of coupling agent hydrolyzate

[0032] Mix 17 parts of KH602 and 9 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis. The hydrolysis temperature is 12°C and the hydrolysis time is 1.5h; then maintain at -0.09MPa for 1h to remove low-molecular compounds; stand still to get the viscosity It is KH602 hydrolyzate mainly composed of silicon glycol at 100mPa·s (25°C).

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Abstract

The invention provides a preparation method of high permeability amino silicone oil, which comprises a step of preparing coupling agent hydrolyzate; a step of preparing amino silicone oil, dehydrating octamethylcyclotetrasiloxane; , add the catalyst to dissolve; then add the coupling agent hydrolyzate under reduced pressure to mix; then add the end-capping agent under reduced pressure to react and then heat up to deactivate the catalyst; then heat up to remove low molecular compounds; stand for cooling to obtain high permeability Amino silicone oil. The amino silicone oil prepared by the invention has high transmittance, controllable viscosity, is easily emulsified into a transparent microemulsion and has excellent stability, is suitable for applications such as fabric treatment, additives in personal care products and the like, and has good application effect .

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a silicone oil chemical, in particular to a preparation method of high-permeability amino silicone oil. Background technique [0002] As a functional silicone oil, amino silicone oil is one of the fastest-growing products among organosilicon compounds. It has many excellent properties and functions such as softness, lubrication, hydrophobicity, film formation, defoaming, and glazing. Its synthesis process is mostly Bulk polymerization and emulsion polymerization. In the synthesis by emulsion polymerization, a small amount of siloxane monomer will remain in the emulsion, which will easily cause oil floating in the emulsion, and the product cannot be restored to the form of silicone oil. The bulk polymerization method has simple technology, easy control of the reaction process, and is suitable for large-scale production. 4 Reactive Copolymerization Synthesis. Since the method invo...

Claims

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Application Information

Patent Timeline
23 Feb 2021
Publication
CN108912333B
IPC
C08G77/26; D06M15/643; D06M101/12
CPC
C08G77/26; D06M15/6436; D06M2101/12
Inventors
吴蓁; 姜琴