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A kind of bola type organosilicon quaternary ammonium salt and its preparation method and application

An organosilicon quaternary ammonium salt, chain reaction technology, applied in fiber treatment, textile and papermaking, biochemical fiber treatment, etc. Yellow and other problems, to achieve the effect of obvious whiteness and improve the whiteness of fabrics

Active Publication Date: 2021-06-01
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the softening agent prepared in the above-mentioned method turns yellow, can't realize that fabric whiteness, softness, hydrophilicity and antibacterial property performance improve simultaneously after fabric treatment

Method used

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  • A kind of bola type organosilicon quaternary ammonium salt and its preparation method and application
  • A kind of bola type organosilicon quaternary ammonium salt and its preparation method and application
  • A kind of bola type organosilicon quaternary ammonium salt and its preparation method and application

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preparation example Construction

[0033] The invention provides a kind of preparation method of Bola type organic silicon quaternary ammonium salt, comprises the following steps:

[0034] A) Under protective atmosphere conditions, the addition reaction of allyl glycidyl ether and tetramethyldisiloxane is carried out to obtain the epoxy double head F 2 D. 2 ;

[0035] B) the epoxy double head F 2 D. 2 Mix and heat with octamethylcyclotetrasiloxane to carry out chain extension reaction to obtain epoxy-terminated silicone oil ETSO;

[0036] C) mixing and heating the epoxy-terminated silicone oil ETSO and meglumine, and performing an amination reaction to obtain the silicone block silicone oil PTSO;

[0037] D) Mixing and heating the organosilicon block silicone oil PTSO and a quaternizing agent to perform a quaternization reaction to obtain a Bola-type organosilicon quaternary ammonium salt.

[0038] The chemical formula reaction process of the preparation method of the Bola type organic silicon quaternary a...

Embodiment 1

[0063] Step 1: Hydrosilylation, add 114g allyl glycidyl ether, Pt catalyst, pass N 2 , the temperature was raised to 50°C, 326.6g of tetramethyldisiloxane was added dropwise, and the dropwise addition was completed within 1h (molar ratio 1:2.3), then the temperature was raised to 90°C, and the temperature was kept for 3h. Raise the temperature of the colorless transparent liquid to 120°C, decompress (-0.09~0.1MPa) for 1 hour to remove the low boilers, and obtain a colorless transparent liquid, which is the epoxy double head F 2 D. 2 .

[0064] Step 2: Chain extension, 1000g D4 and 114.5g epoxy double head F 2 D. 2 , Solid tetramethylammonium hydroxide (0.02wt%) was added into a four-necked flask, the temperature was raised to 90-110°C, and the reaction was carried out for 10h, then the temperature was raised to 145-150°C, and the catalyst was decomposed for 0.5h. Then depressurize at -0.09~-0.1MPa for 0.5h to remove low boilers to obtain a colorless transparent viscous liq...

Embodiment 2

[0070] Step 1: Hydrosilylation, add 114g allyl glycidyl ether, Pt catalyst, pass N 2 , the temperature was raised to 50°C, 326.6g of tetramethyldisiloxane was added dropwise, and the dropwise addition was completed within 1h (molar ratio 1:2.3), then the temperature was raised to 90°C, and the temperature was kept for 3h. Raise the temperature of the colorless transparent liquid to 120°C, depressurize at -0.09~0.1MPa for 1 hour, remove the low boilers, and obtain a colorless transparent liquid, which is the epoxy double-capped F 2 D. 2 .

[0071] Step 2: Chain extension, 1000g D4 and 68.9g epoxy double head F 2 D. 2 , Solid tetramethylammonium hydroxide (0.02wt%) was added into a four-necked flask, the temperature was raised to 90-110°C, and the reaction was carried out for 10h, then the temperature was raised to 145-150°C, and the catalyst was decomposed for 0.5h. Then depressurize (-0.09~-0.1MPa) for 0.5h to remove low boilers to obtain a colorless transparent viscous li...

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Abstract

The invention provides a preparation method of Bola type organosilicon quaternary ammonium salt, comprising the following steps: A) under protective atmosphere conditions, carrying out addition reaction of allyl glycidyl ether and tetramethyldisiloxane to obtain Epoxy double head F 2 D. 2 ; B) the epoxy double head F 2 D. 2 Mixing and heating with octamethylcyclotetrasiloxane for chain extension reaction to obtain epoxy-terminated silicone oil ETSO; C) mixing and heating the epoxy-terminated silicone oil ETSO and meglumine for amination reaction, Obtaining the organosilicon block silicone oil PTSO; D) mixing and heating the organosilicon block silicone oil PTSO and a quaternizing agent to perform a quaternization reaction to obtain a Bola-type organosilicon quaternary ammonium salt. The Bola type organosilicon quaternary ammonium salt provided by the invention has obvious whiteness, and can simultaneously improve the whiteness, softness, hydrophilicity and antibacterial properties of the treated fabric.

Description

technical field [0001] The invention belongs to the technical field of fabric modifiers, and in particular relates to a Bola-type organosilicon quaternary ammonium salt and a preparation method and application thereof. Background technique [0002] Silicones are widely used in fabric softeners, which are chemical substances that can change the static and dynamic friction coefficients of fibers. When the coefficient of static friction is changed, the hand feels smooth and easy to move on the fiber or fabric; when the coefficient of dynamic friction is changed, the fine structure between fibers is easy to move with each other, that is, the fiber or fabric is easy to deform. The combined feeling of the two is soft. There are four types of softeners according to their ionic properties: cationic, nonionic, anionic, and amphoteric quaternary ammonium salts. [0003] In the prior art, research on the modification of fabric softeners mainly focuses on the structural improvement of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/38C08G77/388C08G77/14C08G77/06D06M15/643
CPCC08G77/06C08G77/14C08G77/38C08G77/388D06M15/6436D06M16/00D06M2200/50
Inventor 余林程文静孙明程高钟远红杨润农
Owner GUANGDONG UNIV OF TECH
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