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A kind of preparation method of anionic linear copolymerization organosilicon softening agent

A softening finishing agent, anionic technology, applied in the field of preparation of anionic linear copolymer silicone softening finishing agent, can solve the problems of low foam rate, unusable dyeing system, stable work, etc., to improve alkali resistance and compatibility. sex, overcoming the "greasy effect"

Active Publication Date: 2018-09-18
HANGZHOU TRANSFAR FINE CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnasoft JSS is widely recognized today as a particularly good and stable softener product. It can be used under high alkaline conditions without floating oil, but even JSS cannot be used in dyeing systems
RucofinHSS produced by German Rudolph Chemical Company also has excellent stability, showing high exhaustion rate and low foam rate, and can be used for cotton yarn dyeing, but it is also difficult to work stably in polyester overflow dyeing process with more harsh conditions

Method used

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  • A kind of preparation method of anionic linear copolymerization organosilicon softening agent
  • A kind of preparation method of anionic linear copolymerization organosilicon softening agent
  • A kind of preparation method of anionic linear copolymerization organosilicon softening agent

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preparation example Construction

[0051] The preparation method of anionic linear copolymerization organosilicon softening agent, its steps are as follows:

[0052] ⑴ Preparation of double-ended hydrogen-containing silicone oil

[0053] 1,1,3,3-Tetramethyldisiloxane and octamethylcyclotetrasiloxane and / or dimethylcyclotetrasiloxane at 1.0-10.0%: 90.0-99.0% (mass percentage) put into the stirred tank, add 1.0-3.0% of the acidic catalyst by the weight of the above two raw materials, stir and react for 3-9 hours at a temperature of 25-75°C, carry out the ring-opening chain extension reaction, remove the acidic catalyst, and then raise the temperature to 90 ~140°C vacuumizes to separate the low-boiling point substances to obtain double-ended hydrogen-containing silicone oil with a viscosity (25°C) of 100-1000 mpa.s, and its content is at least 95.0%.

[0054] ⑵ Preparation of double-ended chlorine-containing silicone oil

[0055] The molar ratio of double-ended hydrogen-containing silicone oil and methallyl chlo...

Embodiment 1

[0067] ⑴ Preparation of double-ended hydrogen-containing silicone oil

[0068] Put 8 grams of 1,1,3,3-tetramethyldisiloxane and 190 grams of octamethylcyclotetrasiloxane into a 500ml four-neck round bottom flask, add 5 grams of concentrated sulfuric acid, Stir the reaction for 7-9 hours, carry out the ring-opening chain extension reaction, use the sedimentation method to remove the concentrated sulfuric acid, then raise the temperature to 90-140°C and vacuumize for 3-5 hours, separate the low boiling point substances, and obtain a viscosity (25°C) of 100-140mpa.s The content of double-ended hydrogen-containing silicone oil is 95.0-96.5%.

[0069] ⑵ Preparation of double-ended chlorine-containing silicone oil

[0070] 100 gram double-end hydrogen-containing silicone oils and 4.5 gram methallyl chlorides that step 1 makes are dropped in 250ml four-neck round-bottomed flasks, drop into 3 gram chloroplatinic acid alcohol solutions (10% mass percent isopropyl chloroplatinic acid ...

Embodiment 2

[0084] 100 grams of octamethylcyclotetrasiloxane (D 4 ) into 100 grams of dimethylcyclosiloxane (DMC), 5 grams of vitriol oil in step (1) and (3) are changed into 4 grams of trifluoromethanesulfonic acid, and undecylenic acid in step (4) is changed into dodecene acid, polyethylene glycol 600 in step (6) is replaced with polyether 600 (EO / PO mixed polymerization, wherein p=11, q=1), and the platinum catalyst in step (2) and (4) adopts polyether 600 in dimethylsiloxane For 1,3-divinyl-1,1,3,3-tetramethyldisiloxane platinum complex, the solvent in step (7) isopropanol was changed to ethylene glycol butyl ether, and the rest were the same as in Example 1.

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Abstract

The invention discloses a preparation method for anionic linear copolymerized organic silicon softening and finishing agent. Under the conditions of high salinity and high alkalinity, cationic groups playing the function of stabilization in the structure of the organic silicon softening and finishing agent are easily flocculated with a dye dispersant, the stability of emulsion is broken, and phenomena like breaking of emulsion and floating of oil are generated. The method comprises organic silicon macromolecule chain extension reaction of 1,1,3,3-tetramethyl disiloxane, addition reaction of 3-chloro-2-methylpropene and terminated hydrogen-containing silicone oil, preparation of terminated chlorine-containing and side-chain hydrogen-containing silicone oil, addition reaction of olefin acid and side-chain hydrogen-containing silicone oil, ammonolysis of an organosilicone macromolecular chain segment, preparation of terminated epoxy-containing polyether, and condensation polymerization of the organosilicone macromolecular chain segment and a polyether chain segment. According to the method, the organosilicone chain segment is subjected to anion modification, the compatibility of the emulsion to anions is improved, the introduction of the anions also greatly improves the high temperature resistance, salt tolerance, alkaline resistance properties of the emulsion, and the product can be suitable for dyeing one-bath processing.

Description

technical field [0001] The invention relates to the field of high molecular polymers, in particular to a preparation method of an anionic linear copolymerized silicone softening agent. Background technique [0002] With the continuous rapid economic growth and the country's emphasis on environmental protection, people have raised new expectations for the product quality of silicone softening agents. Fabric softeners are developing towards multi-function, short-process, and green environmental protection. Silicone softening agent, as a value-added agent for textile processed products, has been endowed with more functions. In addition to the conventional hand feeling improvement, it is also hoped that the hydrophilicity of the fiber can be maintained, and at the same time, it is hoped that it can work stably under complex printing and dyeing conditions. [0003] The textile dyeing and finishing industry is a low-profit processing industry, and the processing technology is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C08G77/385C08G77/38C08G77/388D06M15/647
CPCC08G77/38C08G77/385C08G77/388C08G81/00D06M15/647D06M2200/50
Inventor 曹政陈英英李天栋陈八斤韩莉颖王洪清陈益丽张鹏胡义娇胡娟
Owner HANGZHOU TRANSFAR FINE CHEM CO LTD
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