Quaternary ammonium base organopolysiloxane high-molecular compound and preparation method and application thereof

A technology of polymer compound and polysiloxane, which is used in plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of reducing the probability of cross-linking of active groups, failing to achieve molecular weight, and failing to achieve ideal hand feel.

Inactive Publication Date: 2013-05-22
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the preparation, storage and transportation of quaternary ammonium side group compounds, due to the presence of a large number of active groups in the molecular structure, chemical reactions continue to occur, premature crosslinking and even gelation make it unusable
However, the active groups of quaternary ammonium-based linear polysiloxane organic copolymers are all present on the main chain. Due to the curling of long molecular chains, shielding and steric hindrance occur, which greatly reduces the probability of further crosslinking of active groups. Due to the molecular weight, the ideal hand feeling cannot be achieved

Method used

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  • Quaternary ammonium base organopolysiloxane high-molecular compound and preparation method and application thereof
  • Quaternary ammonium base organopolysiloxane high-molecular compound and preparation method and application thereof
  • Quaternary ammonium base organopolysiloxane high-molecular compound and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] A kind of quaternary ammonium organopolysiloxane polymer compound, prepared according to the following method:

[0141] (1). Preparation of α, ω-hydrogen polysiloxane (double-end hydrogen siloxane) intermediate

[0142] Preparation of double-terminal hydrogen siloxane 30H

[0143] Add D 4 (that is, octamethylcyclotetrasiloxane) 630g and 1,1,3,3-tetramethyldisiloxane 34.2g, start the agitator; after stirring evenly, add 20g of acid clay; heat up to 40~ After reacting at 70°C for 6-8 hours, remove the acid clay by filtration; then change the above device into a vacuum distillation device, heat up, and distill under reduced pressure to remove low boilers. Obtain 540g colorless transparent liquid α, ω-hydrogen polysiloxane, measure viscosity (25 ℃) , the structural formula is as follows:

[0144] H(CH 3 ) 2 SiO[(CH 3 ) 2 SiO] 30 Si (CH 3 ) 2 H.

[0145] figure 1 IR spectrum of the α,ω-hydrogenpolysiloxane intermediate prepared for the present invention. ...

Embodiment 2

[0169] Example 2 ； A kind of quaternary ammonium organopolysiloxane polymer compound, prepared according to the following method:

[0170] (1). Preparation of α, ω-hydrogen polysiloxane (double-end hydrogen siloxane) intermediate

[0171] Preparation of double-terminal hydrogen siloxane 50H

[0172] In the device identical with embodiment 1 step (1), add D respectively 4 643g and 21g of 1,1,3,3-tetramethyldisiloxane, start the stirrer; after stirring evenly, add 20g of acid clay; heat up to 40-70°C and react for 6-8 hours, then filter to remove the acidity White clay; then change the above device into a vacuum distillation device, heat up, and distill under reduced pressure to remove low boilers. Obtain 590g colorless transparent liquid α, ω-hydrogen polysiloxane, measure viscosity (25°C) , the structural formula is as follows:

[0173] H(CH 3 ) 2 SiO[(CH 3 ) 2 SiO] 50 Si (CH 3 ) 2 H.

[0174] figure 1 IR spectrum of the α,ω-hydrogenpolysiloxane interme...

Embodiment 3

[0197] A kind of quaternary ammonium organopolysiloxane polymer compound, prepared according to the following method:

[0198] (1). Preparation of α, ω-hydrogen polysiloxane (double-end hydrogen siloxane) intermediate

[0199] Preparation of double-terminal hydrogen siloxane 50H

[0200] In the device identical with embodiment 1 step (1), add D respectively 4 643g and 21g of 1,1,3,3-tetramethyldisiloxane, start the stirrer; after stirring evenly, add 20g of acid clay; heat up to 40-70°C and react for 6-8 hours, then filter to remove the acidity White clay; then change the above device into a vacuum distillation device, heat up, and distill under reduced pressure to remove low boilers. Obtain 590g colorless transparent liquid α, ω-hydrogen polysiloxane, measure viscosity (25°C) , the structural formula is as follows:

[0201] H(CH 3 ) 2 SiO[(CH 3 ) 2 SiO] 50 Si (CH 3 ) 2 H.

[0202] figure 1 IR spectrum of the α,ω-hydrogenpolysiloxane intermediate prepared fo...

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Abstract

The invention belongs to the field of chemical techniques, and relates to a quaternary ammonium base organopolysiloxane high-molecular compound which contains the quaternary ammonium base organopolysiloxane compound structural units shown in formula (I). The invention provides the quaternary ammonium base organopolysiloxane high-molecular compound which takes linear quaternary ammonium base organopolysiloxane as the main chain and which is embedded with an appropriate quantity of side chain quaternary ammonium bases, so that a finished fabric has excellent properties of hand-feeling fullness, softness, dry smoothness, hydrophilcity and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to a quaternary ammonium organopolysiloxane polymer compound used as a finishing agent for cotton and its blended fabrics, a preparation method and application thereof. Background technique [0002] At present, the organopolysiloxane compounds with quaternary ammonium groups disclosed in the literature are mainly divided into two categories in terms of molecular structure: one is polysiloxane organic copolymers with quaternary ammonium side groups, such as CN 1284515A, According to the invention of CN1468887A, it is mainly used as a finishing agent for fabrics and fibers; the other is a polysiloxane organic copolymer with a linear structure in which the quaternary ammonium group is embedded in the main chain. For example, EP17121 discloses that the polymer structure is α, ω- Quaternary ammonium organopolysiloxane, while the quaternary ammonium group described in DE3340708 is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/388C08G77/38C08G77/12D06M15/647D06M101/06
Inventor 高雏燕
Owner HANGZHOU MEIGAO HUAYI CHEM
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