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Preparation method for amino modified silicone oil through sealing end of methoxyl

A technology of methoxy capping and methoxy capping agent, applied in textiles, papermaking, fiber processing, etc., can solve problems such as poor lubricity, poor fabric lubricity and resilience, and poor resilience.

Active Publication Date: 2014-05-28
NINGBO RUNHE HIGH TECH MATERIAL CO LTD
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Problems solved by technology

[0003] Amino-modified silicone oils in the prior art include methyl-terminated amino-modified silicone oils; hydroxyl-terminated amino-modified silicone oils; methyl-terminated amino-modified silicone oils The viscosity and stability are good, but the lubricity and resilience of the treated fabric are poor, which is difficult to solve even by increasing the viscosity; the stability of hydroxyl-terminated amino-modified silicone oil is poor, the viscosity fluctuates greatly, and the quality is unstable. The lubricity is poor, and the hand feels sticky; therefore, there are problems and deficiencies in the prior art such as poor lubricity and poor resilience

Method used

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  • Preparation method for amino modified silicone oil through sealing end of methoxyl
  • Preparation method for amino modified silicone oil through sealing end of methoxyl
  • Preparation method for amino modified silicone oil through sealing end of methoxyl

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Embodiment

[0030] Product name: Methoxy-terminated amino-modified silicone oil

[0031] Formula: formula unit is weight g

[0032] A basic monomer: octamethylcyclotetrasiloxane, 296g;

[0033] Heading agent: trimethoxyl, 272g;

[0034] Diluent: deionized water, 36g;

[0035] A catalyst: concentrated sulfuric acid, 9.1g;

[0036] Neutralizer: sodium carbonate, 11g;

[0037] B basic monomer: octamethylcyclotetrasiloxane, 2960g;

[0038] Coupling agent: N-(β-aminoethyl)-γ-aminopropylmethyldihydroxysilane, 81g;

[0039] B catalyst: tetramethylammonium hydroxide, 0.6g;

[0040] preparation:

[0041] Preparation conditions, equipment

[0042] Ambient air pressure: one atmosphere;

[0043] Ambient temperature: room temperature;

[0044] Preparation equipment: a four-necked flask equipped with a stirrer, a thermometer, and a nitrogen filling device, referred to as a four-necked flask;

[0045] The preparation method is synthesis:

[0046] Step 1, Synthesis of Methoxyl Heading Agent ...

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Abstract

The invention discloses a preparation method for amino modified silicone oil through sealing end of methoxyl. The methoxyl is adopted to conduct sealing end on the amino silicone oil. Through the adoption of the technical scheme that the end group structure of the amino modified silicone oil is changed through the methoxyl to improve the lubrication degree and the elastic recovery capacity of a treated fabric, the defect that the lubrication degree and the elastic recovery capacity are low in the prior art is overcome; lubrication degree and elastic recovery capacity of a fabric treated by a amino modified silicone oil softening agent are improved.

Description

technical field [0001] The invention relates to a method for preparing an amino-modified silicone oil softener, in particular to a method for preparing a methoxy-terminated amino-modified silicone oil used for after-finishing textiles and treating textiles with soft handle. Background technique [0002] Softener is a chemical preparation used to improve the softness of fabrics during textile finishing. It is widely used in the softness of cotton, hemp, wool, silk, polyester, nylon, acrylic, viscose and other fiber fabrics. The softness index of textiles involves Flatness, softness, bulk, smoothness and resilience. As a textile softener, the treatment effect of amino-modified silicone oil on fabrics depends on three indicators of its structure, one is viscosity index, viscosity is an indicator to measure the degree of polymerization of amino-modified silicone oil, which depends on the molecular weight of amino-modified silicone oil Generally speaking, the higher the viscosit...

Claims

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Application Information

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IPC IPC(8): C08G77/26D06M15/643
Inventor 朱建华杨振何雨虹
Owner NINGBO RUNHE HIGH TECH MATERIAL CO LTD
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