A kind of preparation method of organosilicon modified acrylic resin

The technology of acrylic resin and silicone is applied in the field of preparation of UV-curable silicone-modified acrylic resin, which can solve the problems of large influence of polymerization degree and removal, and achieve the effect of simple reaction and control of reaction products.

Active Publication Date: 2022-02-11
上海本诺电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the methylphenyl organosilicon-modified polyurethane (meth)acrylate resin disclosed in this patent synthesizes an organosilicon polymer through a silanol condensation reaction. During polymerization, the reaction conditions have a great influence on the degree of silanol polymerization, and there may be more Polymers with different molecular weights and the target product needs to be solvent-removed

Method used

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  • A kind of preparation method of organosilicon modified acrylic resin
  • A kind of preparation method of organosilicon modified acrylic resin
  • A kind of preparation method of organosilicon modified acrylic resin

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment provides a preparation method of UV-curable silicone-modified acrylic resin A.

[0040] 1. The parts by weight of the reaction raw materials and each raw material are as follows:

[0041] Triethylene glycol dimethacrylate (SR205NS): 100 parts;

[0042] Phenyl hydrogen-containing silicone resin (0.2-0.3% hydrogen content, viscosity 6000-7000mpa.s): 80 parts;

[0043] Platinum catalyst: 0.05 parts;

[0044] 2. The preparation process is as follows:

[0045] (1) Mix triethylene glycol dimethacrylate (SR205NS) and platinum catalyst gold evenly;

[0046] (2) Add phenyl hydrogen-containing silicone resin and stir evenly and heat up to 90 degrees, and react for 3 hours while stirring;

[0047] (3) Infrared detection is used, which is at 2130cm -1 The absorption peak at the (Si—H) position disappears completely, which proves that the reaction is complete, such as figure 1 shown. The reaction was terminated and cooled.

[0048] 3. The reaction formula is ...

Embodiment 2

[0051] This example provides a preparation method of UV-curable silicone-modified acrylic resin B.

[0052] 1. The parts by weight of the reaction raw materials and each raw material are as follows:

[0053] Difunctional aliphatic urethane acrylate oligomer (CN8010NS): 100 parts;

[0054] Phenyl hydrogen-containing silicone resin (0.2-0.3% hydrogen content, viscosity 6000-7000mpa.s): 80 parts;

[0055] Platinum catalyst: 0.05 parts;

[0056] 2. The preparation process is as follows:

[0057] (1) Bifunctional aliphatic urethane acrylate (CN8010NS) and platinum catalyst gold are mixed evenly;

[0058] (2) Add phenyl hydrogen-containing silicone resin and stir evenly and heat up to 90 degrees, and react for 3 hours while stirring;

[0059] (3) The reaction is terminated and cooled.

Embodiment 3

[0061] This embodiment provides a preparation method of UV-curable silicone-modified acrylic resin C.

[0062] 1. The parts by weight of the reaction raw materials and each raw material are as follows:

[0063] Triethylene glycol dimethacrylate (SR205NS): 50 parts;

[0064] Difunctional aliphatic urethane acrylate oligomer (CN8010NS): 50 parts;

[0065] Phenyl hydrogen-containing silicone resin (0.2-0.3% by mass of hydrogen, viscosity 6000-7000mpa.s): 60 parts;

[0066] Platinum catalyst: 0.045 parts;

[0067] 2. The preparation process is as follows:

[0068] (1) Mix triethylene glycol dimethacrylate (SR205NS), difunctional aliphatic urethane acrylate oligomer (CN8010NS) and platinum catalyst gold evenly;

[0069] (2) Add phenyl hydrogen-containing silicone resin, stir evenly and heat up to 90 degrees, and react for 4 hours while stirring;

[0070] (3) The reaction is terminated and cooled.

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Abstract

The invention provides a method for preparing an organosilicon-modified acrylic resin, comprising the following steps: performing addition polymerization of a bifunctional acrylate monomer and a phenyl hydrogen-containing silicone resin under a catalyst; the bifunctional acrylate monomer Including one of triethylene glycol dimethacrylate, polyethylene glycol diacrylate, tricyclodecane dimethanol diacrylate, ethoxylated bisphenol A diacrylate, aliphatic urethane acrylate oligomers one or more species. The organosilicon-modified acrylic resin prepared by the present invention not only retains the physical and mechanical properties of the acrylic material, but also takes into account the temperature and weather resistance of the organosilicon material; the modified acrylic resin has certain stain resistance, temperature and weather resistance; The invention adopts the hydrosilylation addition reaction, the reaction is simple, and the reaction product can be effectively controlled.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a method for preparing an organosilicon-modified acrylic resin, in particular to a method for preparing a UV-curable organosilicon-modified acrylic resin. Background technique [0002] UV curing technology has achieved global rapid development with its powerful advantages of energy saving, environmental protection and high efficiency. It has greatly reduced VOC emissions and energy consumption in the fields of coating, printing and bonding. It has been widely used in building materials, electronics, optoelectronics, packaging and printing and other fields. Generate huge economic and social benefits. [0003] The currently used UV acrylic resin products are still lacking in weather resistance, temperature resistance, and anti-fouling properties. Therefore, silicone or fluoride is usually used to modify acrylic acid. Since the organic silicon material has a very low surface tensio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/382C08G77/388C08G77/12
CPCC08G77/382C08G77/388C08G77/12
Inventor 陈继盟
Owner 上海本诺电子材料有限公司
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