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Mobile terminal backplane, preparation method thereof, and mobile terminal

A mobile terminal and backplane technology, applied in the field of materials, can solve the problems of not meeting the growing needs of consumers, the mobile terminal backplane needs to be improved, and the signal is difficult to pass through the mobile terminal, etc., and achieves good product dimensional stability and anti-signal. Strong shielding ability and the effect of protecting mobile terminals

Active Publication Date: 2021-02-19
内蒙古信敏惠纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the mobile terminal backplanes are made of metal at present. Due to the electromagnetic shielding effect of metal, it is difficult for signals to pass through the mobile terminal. At the same time, wireless charging is becoming more and more popular, and the metal backplane of the mobile terminal will prevent the magnetic field from penetrating. However, wireless charging is not possible
Therefore, the backplane of the current mobile terminal limits the development of the 5G era and the realization of wireless charging, and cannot meet the growing needs of consumers
[0004] Therefore, the current mobile terminal backplane still needs to be improved

Method used

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  • Mobile terminal backplane, preparation method thereof, and mobile terminal
  • Mobile terminal backplane, preparation method thereof, and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 1) The structure and composition of the mobile terminal backplane are as follows:

[0074] Thermal layer:

[0075] The thickness is 600 microns, and the composition is composed of: 20 parts by weight of epoxy resin, 10 parts by weight of graphene oxide, zirconium oxide (composed of two particle sizes with a particle size of 1 micron and a particle size of 20 microns, and the mass ratio of the two is 1:1 ) 40 parts by weight, alumina (consisting of two particle sizes of 1 micron and 20 microns in particle size, the mass ratio of the two is 1:1) 25 parts by weight, 1 part by weight of dicyandiamide curing agent, polyamide 0.2 parts by weight of accelerator, 8 parts by weight of flame retardant, 3 parts by weight of coupling agent, and 0.3 parts by weight of anti-aging agent.

[0076] The protective layer:

[0077] Thickness 50 microns, composition: 25 parts by weight of epoxy resin, 10 parts by weight of diamond (particle size is 800 nanometers), zirconium oxide (being ...

Embodiment 2

[0087] 1) The structure and composition of the mobile terminal backplane are as follows:

[0088] Thermal layer:

[0089] Thickness 150 microns, composition: 9 parts by weight of epoxy resin, 5 parts by weight of graphene, zirconia (composed of two particle sizes with a particle size of 1 micron and a particle size of 20 microns, the mass ratio of the two is 1:0.5) 40 parts by weight, aluminum oxide (consisting of two particle sizes of 1 micron and 20 microns in particle size, the mass ratio of the two is 1:0.5) 40 parts by weight, 0.15 parts by weight of dicyandiamide curing agent, polyamide accelerator 0.05 parts by weight of agent, 15 parts by weight of flame retardant, 5 parts by weight of coupling agent, and 0.1 part by weight of anti-aging agent.

[0090] The protective layer:

[0091] Thickness 5 microns, composition: epoxy resin 50 weight parts, diamond (particle diameter is 200 nanometers) 1 weight part, zirconium oxide (by particle diameter is 1 micron and particle...

Embodiment 3

[0101] 1) The structure and composition of the mobile terminal backplane are as follows:

[0102] Thermal layer:

[0103] The thickness is 800 microns, and the composition is composed of: 50 parts by weight of epoxy resin, 1 part by weight of graphene oxide, zirconium oxide (consisting of two particle sizes with a particle size of 5 microns and a particle size of 30 microns, and the mass ratio of the two is 1:2 ) 10 parts by weight, aluminum oxide (consisting of two particle sizes of 5 microns and 30 microns in particle size, the mass ratio of the two is 1:2) 10 parts by weight, 5 parts by weight of dicyandiamide curing agent, polyamide 1 part by weight of accelerator, 5 parts by weight of flame retardant, 1 part by weight of coupling agent, and 1 part by weight of anti-aging agent.

[0104] The protective layer:

[0105] Thickness 100 microns, composition: 5 parts by weight of epoxy resin, 15 parts by weight of diamond (particle diameter is 2 microns), zirconium oxide (bein...

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Abstract

The invention provides a mobile terminal backboard, a preparation method thereof and a mobile terminal. Wherein, the mobile terminal backplane includes: a thermally conductive layer containing at least one of graphene and graphene oxide, and a thermosetting resin; a protective layer, the protective layer being arranged on one of the thermally conductive layers on the surface, and the protective layer contains diamond and the thermosetting resin. The mobile terminal backplane has a simple structure, is easy to implement, has a high yield rate, low cost, high hardness, high temperature resistance, high relative dielectric constant, strong anti-signal shielding ability, and high bending strength. Adding diamond to the protective layer makes the backplane of the mobile terminal better in wear resistance and thermal conductivity, which helps to improve the heating problem of the mobile terminal.

Description

technical field [0001] The invention relates to the field of material technology, and in particular, to a mobile terminal backplane, a preparation method thereof, and a mobile terminal. Background technique [0002] In August 2017, Qualcomm announced that it had completed the first 5G connection test on mobile terminals. In addition, Qualcomm also launched the first 5G smartphone reference design. In September 2017, Deutsche Telekom officially announced that it will jointly launch the world's first 5G commercial network with Huawei. This is the first government and enterprise in the world to launch a complete 5G network technology! The prelude to the 5G communication era has begun, and mobile terminals will usher in another revolution. [0003] However, most of the mobile terminal backplanes are made of metal at present. Due to the electromagnetic shielding effect of metal, it is difficult for signals to pass through the mobile terminal. At the same time, wireless charging...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/20B32B27/38B32B27/18B32B33/00C08L63/00C08K3/04C08K3/22C08K7/14H04M1/02
CPCB32B27/08B32B27/18B32B27/20B32B27/38B32B33/00B32B2264/101B32B2264/107B32B2264/108B32B2307/212B32B2307/302B32B2307/3065B32B2307/536B32B2307/54B32B2307/554B32B2307/7265B32B2457/00C08K3/04C08K3/22C08K2003/2227C08K2003/2244C08K2201/003C08K2201/014H04M1/026C08L63/00
Inventor 张建军李金来
Owner 内蒙古信敏惠纳米科技有限公司