Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modified polycarbonate composition, electronic equipment shell and preparation method of electronic equipment shell

A technology of polycarbonate and composition, applied in the field of plastics, to achieve the effects of improving scratch resistance, facilitating dispersion, and good compatibility

Active Publication Date: 2020-10-09
BYD CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem that the existing technology cannot take into account the high transparency and high impact strength of polycarbonate at the same time, the present invention provides a modified polycarbonate composition, an electronic device casing and a preparation method thereof. Carbonate has excellent scratch resistance, good impact resistance and transparency

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
  • Modified polycarbonate composition, electronic equipment shell and preparation method of electronic equipment shell
  • Modified polycarbonate composition, electronic equipment shell and preparation method of electronic equipment shell
  • Modified polycarbonate composition, electronic equipment shell and preparation method of electronic equipment shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0047] According to a preferred embodiment of the present invention, a method for preparing an electronic device casing provided by the present invention may include the following steps:

[0048] (1) Weigh each component according to the above parts by weight, and add the above components into a high-speed mixer, mix at 200 rpm for 1-2 min, and at 400 rpm for 1 min to obtain a mixture.

[0049] (2) Add the mixture in step 1 to the main feed of the twin-screw extruder, extrude and granulate to obtain pellets. The extrusion temperature is set to 100-120°C for zone 1, 180-200°C for zone 2, 200-220°C for zone 3, 230-250°C for zone 4, 230-250°C for zone 5, 230-250°C for zone 6, and 230°C for zone 7. -250°C, eighth zone 230-250°C, nine zone 230-250°C, machine head 230-250°C.

[0050] (3) Dry the pellets, and put them into an injection molding machine, and inject them to obtain a product. The injection molding temperature is set at 230-240°C for the first zone, 240-250°C for the se...

preparation example 1

[0058] This preparation example is to illustrate the modified nanoparticles prepared by the present invention.

[0059] Inorganic nanoparticle SiO with hydroxyl groups on the surface 2, a monomer phenyl methacrylate grafted after being modified by the silane coupling agent KH-570;

[0060] As a result, the prepared modified nanoparticles have a core-shell structure, and the core-shell structure includes core materials, silane coupling agents and shell materials that are coated sequentially from the core to the shell, wherein the core material is an inorganic nanoparticle containing a hydroxyl group, and the shell The material is a polymer layer after monomer polymerization, the core material and the shell material are connected by a silane coupling agent; the thickness of the shell material is 40nm, and the solubility parameter is 19.04; and the average particle size of the modified nanoparticles is 90nm, and the refractive index is 1.54.

preparation example 2

[0062] This preparation example is to illustrate the modified nanoparticles prepared by the present invention.

[0063] Using SiO with hydroxyl groups on the surface 2 / TiO 2 Composite particles, grafted monomer benzyl methacrylate after modified by silane coupling agent KH-570;

[0064] Results The prepared modified nanoparticles have a core-shell structure, and the core-shell structure includes core materials, silane coupling agents and shell materials coated in sequence from the core to the shell. The core material is an inorganic nanoparticle containing a hydroxyl group, and the shell material is The polymer layer after monomer polymerization, the core material and the shell material are connected by a silane coupling agent; the shell material has a thickness of 20nm, a solubility parameter of 18.99; and the average particle diameter of the modified nanoparticles is 60nm , the refractive index is 1.51.

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of plastic, and discloses a modified polycarbonate composition, an electronic equipment shell and a preparation method of the electronic equipment shell. The composition comprises polycarbonate, a transparency modifier and modified nano particles, wherein the modified nano particles are obtained by modifying inorganic nano particles having hydroxyl on the surfaces through a silane coupling agent and then polymerizing the modified inorganic nano particles with a monomer; the monomer comprises a high-refractive-index monomer or comprises a high-refractive-indexmonomer and a low-refractive-index monomer. The low-refractive-index monomer is selected from methyl methacrylate and / or cyclohexyl methacrylate, and the high-refractive-index monomer is one or moreselected from benzyl methacrylate, phenyl methacrylate, phenoxy ethyl acrylate, phenyl acrylate, benzyl acrylate, naphthyl methacrylate and naphthyl acrylate. The electronic equipment shell prepared from the composition provided by the invention has good impact toughness, high transparency and surface hardness.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a modified polycarbonate composition, an electronic equipment casing and a preparation method thereof. Background technique [0002] The 5G era is approaching, and higher requirements are put forward for the signal transmission capability of electronic equipment casings. Metals will shield and interfere with signals, so demetallization of electronic equipment casings will be the general trend. For the moment, electronic equipment casings The body is shifting from metals to non-metallic materials such as plastics, glass, ceramics, and composite materials. Among them, polycarbonate (PC), as an amorphous engineering plastic, is widely used due to its good mechanical properties, surface gloss and transparency. [0003] CN106084715A discloses a kind of anti-scratch transparent PC resin composition and its preparation method, wherein, comprise the following components by weight: PC resin (bisp...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/12C08L91/06C08K9/10C08K5/134C08K5/3475C08L83/10C08F292/00C08F220/18C08F220/14C08F220/30
CPCC08F292/00C08L69/00C08L83/10C08L2201/10C08L2203/20C08L2205/03C08L33/12C08L91/06C08K9/10C08K5/1345C08K5/3475C08F220/14
Inventor 陈小芳周维段平平郭庆勇隗串
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com