阅读说明：本技术 一种绝缘高导热的光固化油墨 (Insulating high-thermal-conductivity photocuring ink ) 是由 丁国晏 向新国 孙海 于 2019-10-12 设计创作，主要内容包括：本发明提供一种绝缘高导热的光固化油墨,其特征在于,包括以下重量份数的组分：齐聚体35-47、单体10-15、绝缘导热体30-50、光引发剂2-4、助剂2-5。本发明可决绝油墨导热性不佳的问题,又同时可解决导电性问题。(The invention provides insulating high-thermal-conductivity photocuring ink which is characterized by comprising the following components in parts by weight: 35-47 parts of oligomer, 10-15 parts of monomer, 30-50 parts of insulating heat conductor, 2-4 parts of photoinitiator and 2-5 parts of auxiliary agent. The invention can solve the problem of poor thermal conductivity of the ink and can solve the problem of electrical conductivity at the same time.)

1. The insulating high-thermal-conductivity photocuring ink is characterized by comprising the following components in parts by weight:

35-47 parts of oligomer, 10-15 parts of monomer, 30-50 parts of insulating heat conductor, 2-4 parts of photoinitiator and 2-5 parts of auxiliary agent.

2. The insulating high-thermal-conductivity photo-curing ink according to claim 1, wherein the oligomer is any one of polyurethane acrylate and polyester acrylate or a combination of the two.

3. The insulating high thermal conductive photo-curable ink according to claim 1, wherein the monomer is any one of or a combination of two of isobornyl acrylate and pentaerythritol triacrylate.

4. The insulating high-thermal-conductivity photo-curing ink according to claim 1, wherein the photo-initiator is any one or a combination of two of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone and 2-isopropyl thioxanthone.

5. The insulating high thermal conductivity photo-curable ink according to claim 1, wherein the insulating thermal conductor is any one or a combination of nano silicon carbide and nano boron nitride.

6. The insulating high thermal conductivity photo-curable ink according to claim 1, wherein the auxiliary agent comprises a dispersant, a defoamer and a leveling agent.

7. The insulating high-thermal-conductivity photo-curing ink as claimed in claim 6, wherein the dispersing agent is polysiloxane, the defoaming agent is polyoxyethylene ether, and the leveling agent is amino-modified polyacrylate.

Technical Field

The invention belongs to the technical field of printing ink, and particularly relates to insulating high-heat-conductivity photocuring printing ink.

Background

The ultraviolet light curing ink (UV ink) is ink which is cured by the crosslinking reaction of a binder in the ink under the irradiation of ultraviolet light with a certain wavelength and the change from a liquid state to a solid state. As a novel environment-friendly ink, the ultraviolet curing ink has the advantages of energy conservation, no solvent discharge, no environmental pollution, high production efficiency, suitability for thermosensitive printing stocks, excellent performance of printed matters, low equipment investment and the like, has extremely wide application on printing surfaces of paper, plastic metal, paint films and the like, almost comprises all the existing printing processes, and the share of the ink on the market is gradually increased.

The UV ink has the characteristics of high drying speed and low voc, the UV ink using the screen printing process is widely used nowadays, the common ink has general insulating property and poor thermal conductivity, and the problems of falling, cracking and the like are easy to occur in the using process.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a screen-printed UV ink which is insulating but has high thermal conductivity.

The technical scheme of the invention is as follows:

the insulating high-thermal-conductivity photocuring ink is characterized by comprising the following components in parts by weight:

35-47 parts of oligomer, 10-15 parts of monomer, 30-50 parts of insulating heat conductor, 2-4 parts of photoinitiator and 2-5 parts of auxiliary agent.

Further, the oligomer is one or the combination of polyurethane acrylate and polyester acrylate.

Further, the monomer is any one of or a combination of two of isobornyl acrylate and pentaerythritol triacrylate.

Further, the photoinitiator is any one or the combination of two of 2-methyl-1- (4-methylthiophenyl) -2-morpholinyl-1-acetone and 2-isopropyl thioxanthone.

Further, the insulating heat conductor is any one of or a combination of two of nano silicon carbide and nano boron nitride.

Further, the auxiliary agent comprises a dispersing agent, a defoaming agent and a leveling agent.

Further, the dispersing agent is polysiloxane, the defoaming agent is polyoxyethylene ether, and the leveling agent is amino modified polyacrylate.

The raw materials of the invention can be obtained by adopting the prior art, and preferably, the raw materials of the invention meet the characteristics of the following table.

The insulating high-thermal-conductivity photocuring ink can be prepared by any one of the prior art.

The invention provides a preparation method of insulating high-heat-conductivity photocuring ink, which comprises the following steps: the oligomer, the monomer and the insulating heat conductor are added into a container and then dispersed. After dispersing for 20 minutes, adding the auxiliary agent into the container for high-speed dispersion for 10 minutes, after the high-speed dispersion is completed, gradually adding tea polyphenol into the container for high-speed dispersion for the second time, wherein the time duration of the dispersion for the second time is 15 minutes, after the dispersion for the second time is completed, transferring the container to a dark condition, adding the photoinitiator, stirring for 10 minutes after the photoinitiator is added, and discharging after the stirring is completed according to the parts by weight: 35-47 parts of oligomer, 10-15 parts of monomer, 30-50 parts of insulating heat conductor, 2-4 parts of photoinitiator and 2-5 parts of auxiliary agent.

According to the invention, the oligomer and the insulating heat conductor are mixed with the components to prepare the insulating heat-dissipating ink with appropriate viscosity, so that the construction performance of the insulating heat-dissipating ink is improved, the insulating heat-dissipating ink is not easy to cause paint build-up, meanwhile, the prepared insulating heat-dissipating ink has excellent film-forming performance, all raw material components are uniformly and stably dispersed in a resin matrix, the stability, the weather resistance and the mechanical performance of the insulating heat-dissipating ink are improved, and the formed ink layer has excellent insulating performance, high heat conductivity coefficient, high adhesive force and stable property, so that the insulating heat-dissipating ink is more favorable for storage.

The inventor selects components and dosage through a large number of creative tests, so that the components of the technical scheme can play a role in synergy.

The invention provides insulating high-heat-conductivity photocuring ink, which can solve the problem of poor heat conductivity of the ink and can solve the problem of electric conductivity.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.