UV-curable high-functionality resin and preparation method thereof

A high-functionality resin technology, which is applied in the field of UV-curable 8-functionality resin and its preparation, can solve the problems of low hardness of the cured product and low average functionality of UV-curable resin, and achieve the goal of increasing the number and density of double bonds, The effect of high pencil hardness

Active Publication Date: 2015-02-04
安徽永昌新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the objectives of the present invention provides a UV-curable high-functionality resin in order to solve the above-mentioned technical problems such as the low average functionality of the UV-curable resin and the low hardness of the cured product cured by it. The UV-curable high-functionality resin has 8 double bonds, the cured product has high pencil hardness

Method used

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  • UV-curable high-functionality resin and preparation method thereof
  • UV-curable high-functionality resin and preparation method thereof
  • UV-curable high-functionality resin and preparation method thereof

Examples

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Embodiment 1

[0054] A UV-curable high-functionality resin, its structural formula is as follows:

[0055] ;

[0056] Wherein: R is the remaining part of the epoxy resin E-51 after removing the epoxy groups at both ends. The epoxy resin E-51 is provided by Wuxi Resin Factory, and its structural formula is as follows:

[0057]

[0058] n is 2-5;

[0059]R1 is the remaining part of 4, 4￠-dicyclohexylmethane diisocyanate after removing the isocyanate groups at both ends.

[0060] The preparation method of the above-mentioned UV-curable high-functionality resin specifically comprises the following steps:

[0061] (1), the preparation of epoxy acrylic resin, the raw materials used for preparation, calculated in parts by weight, its composition and content are as follows:

[0062] Epoxy resin E-51 30 parts

[0063] Acrylic acid 2.5 parts

[0064] Inhibitor 0.02 parts

[0065] Catalyst C 0.02 part;

[0066] Wherein, the structural formula of described epoxy resin E-51 is as follows:

...

Embodiment 2

[0096] A UV-curable high-functionality resin, its structural formula is as follows:

[0097]

[0098] Wherein R is the remaining part of the epoxy resin E-51 after removing the epoxy groups at both ends. The epoxy resin E-51 is provided by Wuxi Resin Factory, and its structural formula is as follows:

[0099]

[0100] n is 2-5;

[0101] R1 is the remaining part of isophorone diisocyanate after removing the isocyanate groups at both ends. The structural formula of isophorone diisocyanate is as follows:

[0102] .

[0103] The preparation method of above-mentioned a kind of UV curable high-functionality resin specifically comprises the following steps:

[0104] (1), the preparation of epoxy acrylic resin, the raw materials used for preparation, calculated in parts by weight, its composition and content are as follows:

[0105] Epoxy resin E-51 60 parts

[0106] Acrylic 5 parts

[0107] Inhibitor 1.0 parts

[0108] Catalyst C 1.0 parts;

[0109] Wherein, the struct...

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Abstract

The invention discloses a UV-curable high-functionality resin and a preparation method thereof. The structural formula of the UV-curable high-functionality resin is disclosed in the specification, wherein R is the residual part of the epoxy resin E-51 after removing epoxy groups on both ends, and R1 is the residual part of 4,4'-diphenylmethane diisocyanate or the like after removing isocyanate groups on both ends. The preparation method comprises the following steps: preparing epoxy acrylic resin, preparing isocyanate-pentaerythritol triacrylate addition product, adding the isocyanate-pentaerythritol triacrylate into the obtained epoxy acrylic resin, stirring for 20-30 minutes, adding a catalyst A, and reacting for 2-3 hours while controlling the temperature at 80-85 DEG C, thereby obtaining the UV-curable high-functionality resin. The UV-curable high-functionality resin has the characteristic of high degree of crosslinking reaction during curing, the pencil hardness of the curing product is 7-9H, and the curing product has the characteristics of high hardness, high pencil scratch resistance and the like.

Description

technical field [0001] The invention relates to a UV-curable high-functionality resin and a preparation method thereof, in particular to a UV-curable 8-functionality resin and a preparation method thereof. Background technique [0002] Ultraviolet curing (UV) resin is a photosensitive resin with relatively low molecular weight, which has groups that can undergo photocuring reactions, such as various unsaturated double bonds or epoxy groups. It is the main component of light-curing products (UV coatings, UV inks, UV adhesives, etc.), and its performance basically determines the main performance of the cured material. UV resin has the characteristics of (1) fast curing speed and high production efficiency; (2) high energy utilization rate and energy saving; (3) less volatile organic matter (VOC) and environmental friendliness, and has developed rapidly. [0003] At present, the average functionality of double bonds in UV-curable resins is low, and the average functionality of...

Claims

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Application Information

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IPC IPC(8): C08G59/14C08G59/17
Inventor 张英强李烨吴郢珊吴如梦吴蓁
Owner 安徽永昌新材料有限公司
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