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Preparation method of solvent-free block silicone oil

A block silicone oil, solvent-free technology, used in textiles, papermaking, fiber processing, etc., can solve the problems of reducing the wet rubbing color fastness and dry rubbing color fastness of fabrics, safely burying hidden dangers, polluting the environment, etc. Wet rubbing fastness and dry rubbing fastness, environmental protection, the effect of simple steps

Inactive Publication Date: 2017-12-29
浙江固高科技股份有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the block silicone oil synthesis technology currently on the market needs to use isopropanol or ethylene glycol monobutyl ether as a solvent, and the final silicone oil product contains a small amount of solvent, which makes the treated fabric appear shaded and light, and reduces the fabric. Wet rubbing color fastness and dry rubbing color fastness; and the presence of solvents in the process of fabric post-processing odor is relatively large, pollutes the environment and damages equipment, which also lays hidden dangers for safety during transportation

Method used

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  • Preparation method of solvent-free block silicone oil
  • Preparation method of solvent-free block silicone oil
  • Preparation method of solvent-free block silicone oil

Examples

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preparation example Construction

[0033] A preparation method of solvent-free block silicone oil, comprising the following steps:

[0034] Step S1, 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane (referred to as epoxy bissiloxane) with a molar ratio of 1:(1-1.8) Head) and polyetheramine are sequentially added into the reaction flask, the reaction temperature is controlled at 90-110° C., and the ring-opened hydroxyl-containing polyamine coupling agent intermediate is obtained after reacting for 4-12 hours.

[0035] Its chemical reaction equation is:

[0036]

[0037] where PO is: EO is:—CH 2 CHO; x, y, z≥1.

[0038] Step S2, add the dimethylcyclosiloxane mixture and the hydroxyl-containing polyamine coupling agent intermediate obtained in step S1 into the reaction flask in turn, stir and heat up, add a basic catalyst at 50-90°C, and continue to heat up to 90-110°C, keep warm for 4-12 hours, then continue to heat up to 140-150°C for vacuum distillation to remove low boilers and catalysts to obtai...

Embodiment 8

[0045] Example 8, a method for preparing a solvent-free block silicone oil, differs from Example 1 in that: the basic catalyst is potassium hydroxide KOH.

Embodiment 9

[0046] Example 9, a method for preparing a solvent-free block silicone oil, differs from Example 1 in that: the basic catalyst is sodium hydroxide NaOH.

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Abstract

The invention discloses a preparation method of solvent-free block silicone oil and belongs to the field of textile chemistry. The method is technically characterized by comprising the steps as follows: S1, polyether amine and 1,3-bis(3-glycidoxy propyl)-1,1,3,3-tetramethyldisiloxane react to produce a hydroxyl-containing polyamine coupling agent; S2, the hydroxyl-containing polyamine coupling agent and organisilicone monomers are subjected to ring opening polymerization under the action of a basic catalyst to produce the solvent-free block silicone oil. The preparation method of the solvent-free block silicone oil comprises concise steps and is convenient to operate, the environment is protected and potential risks during transportation are reduced due to reduction of solvents, the colored light phenomenon on the surface of fabric is effectively reduced while the softness of the fabric is guaranteed and yellowing of the fabric is reduced, and the wet rubbing fastness and dry rubbing fastness of the fabric are improved.

Description

technical field [0001] The invention belongs to the field of textile chemical industry, more specifically, it relates to a preparation method of a solvent-free block silicone oil. Background technique [0002] Among textile printing and dyeing auxiliaries, softeners are a large category of finishing agents, and their main function is to meet the requirements of different handles and styles of various textiles. There are two main categories of textile softener products: aliphatic (non-silicon) and silicone. Among them, there are many kinds of silicone softeners, the main structure is polydimethylsiloxane, that is, with Si-O-Si as the main chain, and its molecular structure can rotate freely, which can not only reduce the dynamic and The coefficient of static friction and the intermolecular force are very small, which can effectively reduce the surface tension of the fiber, so silicone becomes one of the most ideal materials for fabric softener. [0003] At present, the most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46C08G77/04D06M15/643
CPCC08G77/04C08G77/46D06M15/643
Inventor 徐山山吴德举尹志红
Owner 浙江固高科技股份有限公司
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