Light wear-resistant material for rear cover of mobile phone

A technology of mobile phone back cover and wear-resistant material, applied in the field of polymer materials, can solve the problems of fragile elasticity, high cost, overheating or cooling of mobile phones, etc., to improve thermal conductivity and strength, light weight, and improve compatibility Effect

Pending Publication Date: 2022-07-29
安能电子有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The materials of mobile phone casings are becoming more and more diverse. The common ones are plastic, metal, glass, etc. Plastic materials are easy to deform and damage; metal materials are more complicated than plastic materials in terms of technology, and their cost It is also higher, especially some relatively advanced metals, such as aluminum alloy, titanium alloy, etc., which have the advantage of high hardness and thermal conductivity, but at the same time, the problem is that it is more likely to cause damage to the appearance, and the mobile phone ten

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The EPDM rubber compound is prepared by the following steps:

[0028] Mix coumarone resin, anhydrous ethanol and carbon nanotubes, stir at 75°C for 2 hours, then add EPDM rubber dispersion, keep the temperature unchanged, and continue to stir for 30 minutes to obtain EPDM rubber compound thing. The dosage and mass ratio of coumarone resin, anhydrous ethanol, carbon nanotube and EPDM dispersion liquid is 4:2:1:10. The EPDM rubber dispersion is prepared by mixing EPDM rubber and ethyl acetate in a mass ratio of 1:5.

Embodiment 2

[0030] To prepare the inorganic mixture:

[0031] Under nitrogen protection, the temperature of magnolol, hydrogen-containing silicone oil and chloroplatinic acid catalyst was raised to 80 °C, and the reaction was stirred for 3 h to obtain modified silicone oil; the hydrogen content of the hydrogen-containing silicone oil was 0.1%; in the chloroplatinic acid catalyst The mass fraction of chloroplatinic acid is 2%; the dosage ratio of magnolol, hydrogen-containing silicone oil and chloroplatinic acid catalyst is 40g:250g:1mL. The expanded graphite and modified silicone oil are mixed to obtain a graphite reinforcing agent.

[0032] Weigh aluminum nitride fibers and basic magnesium sulfate whiskers as filler mixture, add them into a ball mill, then add ethanol and 3-(2-aminoethyl)-(aminopropyltrimethoxysilane), and the ball milling speed is 350r Perform ball milling at 30°C per minute, and the ball milling time is 2h. After the ball milling is completed, dry at a drying temperat...

Embodiment 3

[0034] To prepare the inorganic mixture:

[0035] Under nitrogen protection, the temperature of magnolol, hydrogen-containing silicone oil and chloroplatinic acid catalyst was raised to 80 °C, and the reaction was stirred for 3 h to obtain modified silicone oil; the hydrogen content of the hydrogen-containing silicone oil was 0.1%; in the chloroplatinic acid catalyst The mass fraction of chloroplatinic acid is 2%; the dosage ratio of magnolol, hydrogen-containing silicone oil and chloroplatinic acid catalyst is 40g:250g:1mL. The expanded graphite and modified silicone oil are mixed to obtain a graphite reinforcing agent.

[0036] Weigh aluminum nitride fibers and basic magnesium sulfate whiskers as filler mixture, add them into a ball mill, then add ethanol and γ-aminopropyl triethoxysilane, and perform ball milling at a rotational speed of 450 r / min and a ball milling temperature of 60 ℃, the time of ball milling is 5h, after the end of ball milling, dry, and the drying temp...

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

Belonging to the technical field of high polymer materials, the invention relates to a lightweight wear-resistant material for mobile phone rear covers, which comprises 50-60 parts of polycarbonate, 20-30 parts of ethylene propylene diene monomer compound, 20-30 parts of polyethylene and 12-16 parts of inorganic mixture. The preparation method comprises the following steps: weighing the raw materials, heating the weighed raw materials to 260-280 DEG C, uniformly mixing to obtain a mixture, and carrying out injection molding and cooling demolding under the pressure of 150-170MPa to obtain the light wear-resistant material for the mobile phone rear cover. The inorganic mixture, the aluminum nitride fibers and the basic magnesium sulfate crystals are added to cooperate with one another, so that the thermal conductivity and the strength of the material for the mobile phone rear cover are improved, and the service life of the material is prolonged. The aluminum nitride fibers and the basic magnesium sulfate whiskers are treated by a silane coupling agent, and the graphite reinforcing agent contains modified silicone oil, so that the compatibility between an inorganic mixture and a polymer base material is improved; the product can be endowed with good scratch resistance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a light-weight wear-resistant material for the back cover of a mobile phone. Background technique [0002] The materials of mobile phone shells are becoming more and more diverse. Common plastic materials, metal materials, glass materials, etc., plastic materials are easily deformed and damaged; metal materials are more complicated than plastic materials in terms of process, and their cost It is also higher, especially for some relatively advanced metals, such as aluminum alloys, titanium alloys, etc., which have the advantages of high hardness and thermal conductivity, but at the same time, the problem is that the appearance is more likely to be damaged, and the mobile phone is easy to appear too hot or too cold. ; Glass material, compared with metal and plastic, glass has the best hardness and impact resistance, more transparent than plastic, easier to col...

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): C08L69/00C08L23/16C08L23/06C08L83/04C08L45/02C08K7/04C08K7/08C08K9/06C08K3/04C08K7/24C08K13/06
CPCC08L69/00C08L2203/20C08L2201/08C08K2201/011C08L23/16C08L23/06C08L83/04C08L45/02C08K7/04C08K7/08C08K9/06C08K3/041C08K7/24C08K13/06Y02A30/00
Inventor 董立波
Owner 安能电子有限公司
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