PC/PMMA composite material, preparation method thereof and electronic terminal shell

A composite material, electronic terminal technology, applied in the field of millimeter wave communication, can solve the problems of short electromagnetic wave wavelength, weak penetration ability, affecting service life, etc.

Pending Publication Date: 2020-10-23
SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Millimeter wave technology is a revolutionary technology for 5G communication, and high-frequency electromagnetic waves have short wavelengths and weak penetration capabilities; at the same time, high-frequency electromagnetic wave communications have a high frequency. According to Shannon's law, the higher the frequency of electromagnetic waves, the greater the communication bandwidth. The faster the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PC/PMMA composite material, preparation method thereof and electronic terminal shell
  • PC/PMMA composite material, preparation method thereof and electronic terminal shell
  • PC/PMMA composite material, preparation method thereof and electronic terminal shell

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] According to another aspect of the present invention, there is also provided a method for preparing the above-mentioned PC / PMMA composite material, comprising the following steps: S1, mixing raw materials comprising PC, PMMA, thermally conductive fillers, reinforcing fillers and compatibilizers to obtain Mixed material; S2, shape the mixed material to obtain PC / PMMA composite material.

[0027] The present invention adds thermally conductive fillers and reinforcing fillers to the material formulation system. The thermally conductive fillers and reinforcing fillers can effectively improve the interface bonding between the fillers and the matrix material under various auxiliaries and mixing process conditions, and increase the uniformity of the mixing of the composite materials. and density, so that the PC / PMMA composite material has high strength, high toughness and high thermal conductivity, and can also exhibit low dielectric constant and dielectric loss characteristics...

Example

[0034] Examples 1 to 6

[0035] A PC / PMMA composite material is provided in the present embodiment, comprising the following steps:

[0036] Mix PC, PMMA, expanded graphite powder, alumina, zirconia, compatibilizer and anti-aging agent at a stirring speed of 20r / min to obtain a mixed material, wherein the compatibilizing agent is PP-g-MA, and the anti-aging agent is PP-g-MA. is 4,4'-thiobis(6-tert-butyl-3-methylphenol), and the mass ratio of each component is shown in Table 1;

[0037] The mixture is extruded and granulated at a temperature of 210° C. to obtain PC / PMMA composite particles, and the PC / PMMA composite particles are injection-molded to obtain a PC / PMMA composite material.

Example Embodiment

[0038] Example 5

[0039] The difference between this embodiment and Embodiment 1 is:

[0040] The thermally conductive filler is h-boron nitride.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a PC/PMMA composite material, a preparation method thereof and an electronic terminal shell. The PC/PMMA composite material is prepared from the following raw materials in partsby weight: 40 to 65 parts of PC, 8 to 25 parts of PMMA, 10 to 28 parts of a heat conducting filler, 5 to 10 parts of a reinforcing filler and 0.5 to 5 parts of a compatilizer. According to the invention, the heat conducting filler and the reinforcing filler are added into the material formula system; the heat conducting filler and the reinforcing filler are mixed under various assistants and mixing process conditions; the interface bonding performance of the filler and the base material can be effectively improved; the mixing uniformity and density of the composite material are improved; therefore, the PC/PMMA composite material has the characteristics of high strength, high toughness and high thermal conductivity, can also show lower dielectric constant and dielectric loss characteristics, can meet the requirements of high-frequency electromagnetic wave communication, and can be widely applied to terminal equipment for 5G high-frequency electromagnetic wave communication.

Description

technical field [0001] The invention relates to the field of millimeter wave communication, in particular to a PC / PMMA composite material, a preparation method thereof and an electronic terminal casing. Background technique [0002] 5G puts forward higher requirements on the signal transmission capability of consumer electronics terminal casings, and the metal back cover with signal shielding effect will be eliminated, while consumer electronics terminal casings made of plastic, glass and ceramics will win more market favor . [0003] Millimeter wave technology is a revolutionary technology for 5G communication, and high-frequency electromagnetic waves have short wavelengths and weak penetration capabilities; at the same time, high-frequency electromagnetic wave communications have a high frequency. According to Shannon's law, the higher the frequency of electromagnetic waves, the greater the communication bandwidth. The faster the transmission rate, the more prominent the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L69/00C08L33/12C08L51/06C08K13/04C08K13/02C08K7/24C08K3/22C08K3/38C08K3/36
CPCC08L69/00C08L2205/03C08L2205/08C08K2003/2227C08K2003/2244C08K2003/385C08K2003/282C08K2003/222C08K2003/2296C08L33/12C08L51/06C08K13/04C08K13/02C08K7/24C08K3/22C08K3/38C08K3/36
Inventor 宋锡滨奚洪亮艾辽东
Owner SHANDONG SINOCERA FUNCTIONAL MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap