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A kind of light-diffusion function thermally conductive adhesive and its preparation method and application

A thermally conductive adhesive, light diffusion technology, applied in adhesives, non-polymer adhesive additives, diffusing components, etc., to achieve good storage stability, high bonding strength, and good heat resistance.

Active Publication Date: 2022-07-15
SHANGHAI XIYI NEW MATERIAL SCI & TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the high integration of devices and equipment, ultra-small and ultra-thin conduction, conventional thermally conductive materials cannot meet the needs of increasing integration and working power of electronic devices, and it is necessary to manufacture thermally conductive materials with higher thermal conductivity, or use multifunctional Heat conduction technology to meet the working requirements of advanced electronic devices

Method used

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  • A kind of light-diffusion function thermally conductive adhesive and its preparation method and application
  • A kind of light-diffusion function thermally conductive adhesive and its preparation method and application
  • A kind of light-diffusion function thermally conductive adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Preparation of alkenyl modified graphene:

[0064] 0.5 g of graphene is dispersed in 500 mL of ethanol, 5 g of vinyltriethoxysilane is added under stirring, the temperature is raised to 60-70° C., and the reaction is stirred for 10 hours to obtain alkenyl modified graphene oxide. figure 2 b is the SEM photograph of the alkenyl-modified graphene oxide in this example.

Embodiment 2

[0066] Preparation of alkenyl modified graphene:

[0067] 100 grams of graphene oxide aqueous dispersion was added to 100 mL of isopropanol, 10 grams of acrylic acid was added under stirring, and the reaction was stirred at room temperature for 40 hours to obtain alkenyl modified graphene oxide.

Embodiment 3

[0069] Preparation of core-shell graphene / polymer composite microspheres:

[0070] Mix 5 g of styrene, 0.5 g of divinylbenzene, 0.5 g of alkenyl modified graphene in Example 1, 30 g of water, 1 g of sodium dodecyl sulfonate and 0.2 g of ammonium persulfate at 40-80 °C Under the condition of stirring for 30 hours, the core-shell structure graphene / polymer composite microspheres were obtained. figure 1 a-1b are SEM pictures and TEM pictures of the core-shell structure graphene / polymer composite microspheres in this example.

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Abstract

The invention relates to a light-diffusion function heat-conducting adhesive and a preparation method and application thereof. Core-shell structure graphene / polymer composite microspheres, 5-50wt% of 1-100nm alkenyl modified inorganic nano thermal conductive materials, and processing aids are obtained by stirring and mixing and in-situ polymerization. The light diffusing material prepared by the present invention Functional thermal conductive adhesive, the haze is not less than 60%, the transmittance is not less than 50%, and the thermal conductivity is not less than 1W / (m.K). It has the advantages of environmental protection and safety, moisture absorption resistance, good heat resistance, single component, rapid curing, good storage stability and high bonding strength; the material has both bonding function, light diffusion function and thermal conductivity function, and is widely used. It can be used in lighting equipment, liquid crystal display, LED equipment light diffusion function thermal conductive coating, light diffusion function thermal conductive adhesive.

Description

technical field [0001] The invention relates to a light-diffusion function heat-conducting adhesive, in particular to a light-diffusion function heat-conducting adhesive and a preparation method and application thereof. Background technique [0002] Light diffusing materials have a wide range of applications in the field of lighting and display, and are also an important part of liquid crystal display (LCD) backlight modules, with good light transmittance and light scattering. In the field of liquid crystal display, since the LCD itself does not emit light, an additional light source is required. The commonly used LED point light source has high brightness, and it will feel dazzling and dazzling when looking directly at it. The use of light diffusing materials can convert a point light source into a surface light source to achieve a uniform light effect, making the light source more uniform, soft and full, which is of great significance for improving the experience of using...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/10C09J135/04C09J125/14C09J11/08C09J11/04G02B5/02
CPCC09J143/04C09J11/08C09J11/04G02B5/02C08K2003/2296C08K2003/385C08L2201/08C08L51/10C08K9/04C08K3/22C08K9/06C08K3/042C08K3/38C08K3/36
Inventor 唐勇杨迪聪江抒
Owner SHANGHAI XIYI NEW MATERIAL SCI & TECHCO