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A non-copolymerized silicone oil modified polyether polymer water-repellent finishing agent and its preparation method

A technology of water-repellent finishing and finishing agent, which is applied in the field of finishing agent and its preparation, and the preparation of non-copolymerized silicone oil modified polyether polymer water-repellent finishing agent. problems, to achieve good soft smoothness and stable performance

Active Publication Date: 2017-10-20
LIAONING KELONG FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its own poor hygroscopicity, poor antistatic property, easy to absorb dirt, and poor hand feel limit its scope of use to a certain extent.
At present, polyester-polyether multi-block binary copolymers are commonly used for fabric finishing, which makes the fabric have good hydrophilic and antistatic properties, but the handle is poor, and the amino-modified silicone oil solution is used to soften the fabric. Easy to fabric film and not easy to remove

Method used

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  • A non-copolymerized silicone oil modified polyether polymer water-repellent finishing agent and its preparation method
  • A non-copolymerized silicone oil modified polyether polymer water-repellent finishing agent and its preparation method
  • A non-copolymerized silicone oil modified polyether polymer water-repellent finishing agent and its preparation method

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preparation example Construction

[0015] A method for preparing a non-copolymerized silicone oil-modified polyether water-repellent finishing agent, the steps are as follows:

[0016] 1) Synthesis of epoxy-terminated polyether: In a four-necked reaction bottle, add multifunctional polyether compound, heat to 60-90°C, according to the amount of substance, multifunctional polyether compound: tetrabutyl bromide Ammonium chloride: NaOH: epichlorohydrin = 1: 0.01-0.03: 1.5-3.5: 2-3.5 is added to the reaction flask, the epichlorohydrin is added dropwise for 30-60 minutes, stirred evenly, and the vacuum degree is -0.09 Mpa under reduced pressure distillation sloughs unreacted matter, obtains light yellow opaque solid and is epoxy-terminated polyether;

[0017] 2) Synthesis of amino silicone oil: In a four-necked flask connected with a vacuum distillation device, add octamethylcyclotetrasiloxane, a coupling agent, and a catalyst, and synthesize a macromolecular amino through three-stage heating and decompression. sil...

Embodiment 1

[0024] 1) Add 185.34g of multifunctional polyether compound into a 500ml four-necked reaction flask, melt it completely at 75°C, add 0.33g of tetrabutylammonium bromide, 1.5g of solid NaOH, and 3.75g of liquid 40%wtNaOH, and weigh 11.56g of epichlorohydrin was added dropwise to the reaction system in 30-60min, after the dropwise addition was completed, the reaction was carried out at constant temperature for 1.5h, and a light yellow opaque solid was collected;

[0025] 2) Add 300g of octamethylcyclotetrasiloxane, 33.7g of coupling agent, and 0.2g of catalyst into the reaction flask connected with vacuum distillation, keep the temperature at 95°C for 2h under the pressure of -0.035~0.04Mpa, and continue to depressurize To -0.06~-0.07Mpa, continue to keep constant temperature for 2 hours, raise the vacuum degree to -0.095Mpa, raise the temperature to 153°C, hold the pressure for 2h, cool down to 80°C and discharge, the transparent liquid is amino silicone oil, and the measured am...

Embodiment 2

[0028] 1) Add multifunctional 185.34g into a 500ml four-necked reaction flask, melt it completely at 75°C, add 0.48g of tetrabutylammonium bromide, 1.5g of solid NaOH, 3.75g of liquid 40%wtNaOH, and weigh epichlorohydrin 13.88g was added dropwise to the reaction system in 30-60min. After the dropwise addition, the constant temperature reaction was carried out for 1.5 hours, and a light yellow opaque solid was collected;

[0029] 2) Add 300g of octamethylcyclotetrasiloxane, 33.7g of coupling agent, and 0.2g of catalyst wq into the reaction flask connected with vacuum distillation. Press down to -0.06~-0.07Mpa, keep constant temperature for 2h, increase the vacuum degree to -0.095Mpa, raise the temperature to 153°C, hold the pressure for 2h, cool down to 80°C and discharge, the transparent liquid is amino silicone oil, the measured amine value is 0.61, the molecular weight determined by viscosity method is 5404;

[0030] 3) Add 242.4g of the solid obtained in step 1) and 200g ...

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Abstract

The invention relates to a non-copolymerization type silicone oil modified polyether polymer water-repellent finishing agent and a preparation method of a non-copolymerization type silicone oil modified polyether polymer water-repellent finishing agent, through the synthesis of epoxy-terminated polyether, amino Synthesis of silicone oil and synthesis of non-copolymerized silicone oil-modified polyether polymer water-repellent finishing agent with amino silicone oil-modified epoxy-terminated polyether. The water-repellent finishing agent prepared by this method improves the softness, smoothness, and Electricity resistance, water repellency and whiteness; the polyester polyether polysiloxane terpolymer fiber disclosed in Patent No. CN102031697, this process makes the fabric have a soft feel, but does not have water repellency.

Description

technical field [0001] The invention relates to a finishing agent and a preparation method thereof, in particular to a preparation method of a non-copolymerized silicone oil-modified polyether polymer water-repellent finishing agent, belonging to the field of chemical raw material production. Background technique [0002] Polyester fiber is currently the most widely used synthetic fiber, and has excellent properties that many natural fibers cannot match. However, its own poor hygroscopicity, poor antistatic property, easy to absorb dirt, and poor hand feeling limit its scope of use to a certain extent. At present, polyester-polyether multi-block binary copolymers are widely used for fabric finishing, so that the fabric has good hydrophilic and antistatic properties, but the handle is poor, and the amino-modified silicone oil solution is used to soften the fabric. Easy to fabric film and not easy to remove. Contents of the invention [0003] The technical problem to be so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/647C08G81/00D06M101/32
Inventor 周全凯申莹王炳帅秦丽翠孙晓龙姜艳
Owner LIAONING KELONG FINE CHEM
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