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Amino-containing polysiloxane-acrylic ester and preparation method and application thereof

An amine group-containing polysiloxane acrylate and methacrylate technology, which can be used in applications, household appliances, coatings, etc., can solve problems such as limited application and small molecular weight, and achieve the effects of simple operation and mild reaction conditions.

Active Publication Date: 2017-05-31
TIANJIN JIURI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For example, EDB and EHA, which are the most widely used at present, have a molecular weight below 300 Daltons and a small molecular weight. They belong to small molecule amine additives. This type of compound and the fragments generated during the photointroduction process have a tendency to migrate and volatilize. limit its application in certain fields

Method used

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  • Amino-containing polysiloxane-acrylic ester and preparation method and application thereof
  • Amino-containing polysiloxane-acrylic ester and preparation method and application thereof
  • Amino-containing polysiloxane-acrylic ester and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1: Preparation with octamethylcyclotetrasiloxane as monomer and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane as end-capping agent End-blocked aminopolysiloxane

[0043] Under nitrogen atmosphere, add octamethylcyclotetrasiloxane and end-capping agent 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane to the reaction vessel , Catalyst tetramethylammonium hydroxide and dimethyl sulfoxide (DMSO), the dosage is n (octamethylcyclotetrasiloxane): n (capping agent): n (tetramethylammonium hydroxide) = 1.2 :1.0:1.5, the amount of DMSO is 0.5% of the total mass of octamethylcyclotetrasiloxane and end-capping agent, keep warm at 90°C for 3h, after the reaction, raise the temperature to 140°C, react for 1h; then distill under reduced pressure to remove Low-molecular-weight substances and unreacted raw materials yielded a colorless and transparent blocked aminopolysiloxane.

example example 2

[0044] Example 2: Preparation of amino-containing polysiloxane acrylate oligomer 1

[0045] Add the amino-terminated siloxane and 2-phenoxyethyl acrylate prepared in Example 1 to the reaction vessel, the amount of which is n (amino-terminated siloxane): n (2-phenoxyethyl acrylate) =1:2; heat, keep warm at 40°C and stir for 30 minutes, then raise the temperature to 70°C, keep warm until the double bond is detected by infrared (1645cm -1 ) disappears to stop the reaction, lower the temperature to 40°C; add 1,6-hexanediol diacrylate to the reaction system in an amount of n (aminosiloxane): n(1,6-hexanediol diacrylate ester) = 1:2, and add 0.2% p-hydroxyanisole of the amount of amino-terminated siloxane substances, keep stirring at 40°C for 30min, then raise the temperature to 70°C, keep warm until the infrared detection -NH (3300cm -1 ) disappeared, the reaction was stopped, and the temperature was lowered to room temperature to obtain the corresponding amino-containing polysilo...

Embodiment 3

[0046] Example 3: Preparation of amino-containing polysiloxane acrylate oligomer 2

[0047] Add the amino-terminated siloxane, 2-phenoxyethyl acrylate and tetrahydrofurfuryl acrylate prepared in Example 1 into the reaction vessel in an amount of n(amino-terminated siloxane):n(2-benzene Oxyethyl acrylate): n (tetrahydrofurfuryl acrylate) = 1:1:1; heat, keep warm at 40°C and stir for 30 minutes, then heat up to 70°C, keep warm until the double bond is detected by infrared (1645cm -1 ) disappears to stop the reaction, lower the temperature to 40°C; add 1,6-hexanediol diacrylate to the reaction system in an amount of n (aminosiloxane): n(1,6-hexanediol diacrylate ester) = 1:2, and add 0.2% p-hydroxyanisole of the amount of amino-terminated siloxane substances, keep stirring at 40°C for 30min, then raise the temperature to 70°C, keep warm until the infrared detection -NH (3300cm -1 ) disappears, the reaction is stopped, and the temperature is lowered to room temperature to obtain ...

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Abstract

The invention provides a novel weather-resistant amino-containing polysiloxane-acrylic ester oligomer for photocuring of LED (light emitting diodes). The polysiloxane-acrylic ester oligomer is prepared by the following steps of using amino-terminated polysiloxane in formula I as raw material, reacting with one or two types of single-function group acrylic ester or methacrylate, and then reacting with one or two types of double-function group acrylic ester or methacrylate, so as to obtain the oligomer shown in the attached figure. The polysiloxane-acrylic ester oligomer has the advantages that a large amount of tertiary amine structures and siloxane structures is contained, the anti-oxidizing and polymerization inhibition effects of a photocuring formula under an LED light source are greatly improved, and the surface dryness function of a coating is promoted; the compatibility is good, the preparation is easy, the cost is low, and the storage is easy.

Description

technical field [0001] The invention relates to an amino group-containing polysiloxane acrylate light-curable oligomer that can be used for LED light-curing and its preparation method and application. Background technique [0002] With the characteristics of high efficiency, environmental protection and energy saving, light curing technology has an increasing market share in traditional industries such as coatings, inks and adhesives. In recent years, with the development of LED light sources, more and more light curing technology uses LEDs as radiation light sources. Although the LED light source has the advantages of long life, low energy consumption, flexible design, no ozone, etc., there are few formulas that can match it with the current light curing technology, mainly because the existing LED light source is mainly 365nm, 385nm, 395nm, and 405nm are several long-wavelength light sources, among which 395nm and 405nm are the most mature. In the field of light curing, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/38C08G77/26C09D183/06C09D183/08C09D11/102
CPCC08G77/26C08G77/38C09D11/102C09D183/06C09D183/08
Inventor 董月国武瑞姚娜赵建新王俊权张静薇李静雨张齐
Owner TIANJIN JIURI NEW MATERIALS CO LTD
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