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Preparation method of quaternary copolymer block organic silicon oil

A quaternary copolymerization block and silicone oil technology, applied in textiles, papermaking, fiber processing, etc., can solve problems such as stuffy wearing feeling, demulsification and oil leaching, difficult to wash, etc., achieve good chemical stability, solve the problem of sticking Roller, the effect of ensuring stability

Inactive Publication Date: 2012-07-11
JIANGSU NIMATE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 2. While giving the fabric an excellent soft feel, it also causes the finished fabric to be hydrophobic, making it feel stuffy to wear and difficult to wash;
[0009] 3. Many products are difficult to emulsify, and the stability of the emulsion is poor, and the phenomenon of "emulsification and floating oil" often occurs during storage, transportation and application

Method used

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  • Preparation method of quaternary copolymer block organic silicon oil
  • Preparation method of quaternary copolymer block organic silicon oil
  • Preparation method of quaternary copolymer block organic silicon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The preparation method of the quaternary copolymerized block silicone oil of the present invention comprises the following steps:

[0064] A, preparation of intermediate I

[0065]Add a certain amount of octamethylcyclotetrasiloxane into the four-necked flask, raise the temperature while stirring, to about 30°C, add a certain amount of catalyst (concentrated sulfuric acid) to react, and add a certain amount of hydrogen after about 10 minutes Double head; continue to keep warm for 4-5 hours. After passing the test, add soda ash to neutralize excess acid, and control the pH value to 6-7. Stand still, precipitate, and take the upper transparent oily body. stand-by.

[0066] During the preparation process, the catalyst accounts for 1-2% (weight ratio) of the main monomer, and the hydrogen-containing double head accounts for 4% (weight ratio) of the main monomer depending on the size of the synthetic molecular weight.

[0067] B. Intermediate II

[0068] Add a certain a...

Embodiment 2

[0074] The difference between this embodiment and embodiment 1 is only:

[0075] A, the octamethylcyclotetrasiloxane in the preparation intermediate I is changed to dimethylhexasiloxane, and the quality of the hydrogen-containing head-sealing agent in the step A is 3.0% of the quality of the polysiloxane, and the rest constant. B and C remain unchanged.

Embodiment 3

[0077] The difference between this embodiment and embodiment 1 is only:

[0078] The mass of the hydrogen-containing head sealant in the step A is 5.0% of the mass of polysiloxane.

[0079] The performance index of the finished quaternary copolymerization block silicone oil finished product is as follows:

[0080] Appearance: Pale yellow transparent viscous liquid

[0081] Ionicity: weak cationic / non-ionic

[0082] pH: 5-7

[0083] Solubility: It can be mixed with cold and hot water in any proportion without emulsifier.

[0084] Compatibility: Can be mixed with non-ionic and cationic additives

[0085] Storage stability: The storage stability period is more than 6 months.

[0086] Process conditions for hand finishing of quaternary copolymerized block silicone oil:

[0087] Dipping method: Dosage (relative to the amount of fabric): 2-3% after diluting 10 times, temperature: 50-60°C; time: 20-30min; dehydration, drying, and setting.

[0088] Padding met...

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PUM

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Abstract

The invention relates to a preparation method of quaternary copolymer block organic silicon oil. The preparation method is characterized by comprising the following steps of: A, preparation of a hydrogen-containing silicon oil intermediate I: blocking with a hydrogen-containing sealing agent by taking the polysiloxane as a main raw material to obtain the hydrogen-containing silicon oil intermediate I; B, preparation of an epoxy-terminated block organic silicon oil intermediate II: adding the intermediate I and allyl glycidyl ether to obtain the epoxy-terminated block organic silicon oil intermediate II; and C, preparation of a finished product: grafting anhydrous piperazine and amino-terminated polyether to the main chain of the intermediate II, and finally obtaining the quaternary copolymer block organic silicon oil. Through the invention, the prepared quaternary copolymer block organic silicon oil does not cause the yellowing phenomenon, and has good hydrophily and strong emulsion stability; and good comprehensive handfeel can be obtained by applying a small amount of the quaternary copolymer block organic silicon oil to the textile.

Description

technical field [0001] The invention relates to a preparation method of a four-element copolymerized block silicone oil, which is mainly used as a softening agent in the finishing process of textiles. Background technique [0002] The softening agent refers to a compound that can absorb on the fiber and smooth the surface of the fiber, increasing the softness of the fiber. Mallinson, an American textile expert, defines softening agent as "an auxiliary agent used in textile materials to change the feel and make the product more comfortable." Commonly used softeners mainly include surfactants and polymer softeners. Surfactants can be divided into cationic, anionic, nonionic and zwitterionic according to their ionic properties; polymer softeners mainly include silicone softeners and polyethylene emulsions. [0003] At present, all silicone softeners are modified products of polydimethylsiloxane. The main structure is polydimethylsiloxane. The main chain of polysiloxane is v...

Claims

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Application Information

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IPC IPC(8): C08G81/00D06M15/647
Inventor 徐美君查鹏程赵海花
Owner JIANGSU NIMATE SCI & TECH CO LTD
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