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

Liquid crystal polymer substrate and processing method thereof

A technology of liquid crystal polymer and processing method, applied in nonlinear optics, instruments, optics, etc., can solve the problems of poor high-frequency characteristics of liquid crystal polymer film, poor heat resistance of liquid crystal polymer film, and low bonding strength, etc. Excellent peel strength, high peel strength, high bond strength effect

Active Publication Date: 2021-03-02
UNIV OF SCI & TECH OF CHINA
View PDF24 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly solves the problem of low bonding strength between the liquid crystal polymer film and the metal conductive layer in the liquid crystal polymer substrate in the prior art, or the poor heat resistance of the liquid crystal polymer film, or the high frequency of the liquid crystal polymer film. Technical issues with poor features

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
  • Liquid crystal polymer substrate and processing method thereof
  • Liquid crystal polymer substrate and processing method thereof
  • Liquid crystal polymer substrate and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Melting point is T m1 The liquid crystal polymer is a liquid crystal copolyester of p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl and terephthalic acid with a melting point of 320 ° C, and a melting point of T m2 For the liquid crystal polymer, the liquid crystal copolyester of p-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid with a melting point of 280°C is selected, and the liquid crystal polymer material is dried and pretreated in a vacuum drying oven at a drying temperature of 150°C. The drying time is 5 hours, and the water content of the resin after drying is less than 300ppm. T according to melting point m2 The mass percentage of the liquid crystal polymer resin accounting for the total resin amount of the liquid crystal polymer film is 1.0%. The two liquid crystal polymers are evenly mixed, and then blended and granulated by a co-rotating twin-screw extruder, and blended to form The granulated liquid crystal polymer material is dried in a vacuum drying ove...

Embodiment 2

[0077] The difference from Example 1 is that the melting point is T m2 The liquid crystal polymer resin accounts for 5.0% by mass of the total resin amount of the liquid crystal polymer film.

Embodiment 3

[0079] The difference from Example 2 is that both sides of the composite liquid crystal polymer film 2 are covered with copper foil, that is, they are stacked in the order of copper foil / composite liquid crystal polymer film 2 / copper foil, and then hot-pressed to obtain Liquid crystal polymer substrate (such as figure 2 shown).

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
Surface roughnessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid crystal polymer substrate and a processing method thereof. The liquid crystal polymer substrate comprises a composite liquid crystal polymer film and a metal conductive layer covering at least one surface of the composite liquid crystal polymer film; and the composite liquid crystal polymer film comprises a liquid crystal polymer resin with a melting point of Tm1 and the liquid crystal polymer resin with the melting point of Tm2, the Tm1 is larger than the Tm2, and the liquid crystal polymer resin with the melting point of Tm2 accounts for 1.0-30.0% of the total mass of the liquid crystal polymer film. Technical problems that in the prior art, bonding strength between the liquid crystal polymer film and the metal conducting layer of a liquid crystal polymersubstrate is low, or the heat resistance of the liquid crystal polymer film is poor, or the high-frequency characteristic of the liquid crystal polymer film is poor are mainly solved.

Description

technical field [0001] The invention belongs to the technical field of processing and manufacturing liquid crystal polymer materials, and in particular relates to a liquid crystal polymer substrate and a processing method thereof. Background technique [0002] With the upgrading of consumption and the popularity of portable and wearable smart devices, electronic devices including smart phones, smart bracelets, personal computers, and driverless information terminals have gradually integrated into people's lives. At the same time, with the advent of the 5G era, higher requirements have been placed on the electrical performance, data capacity, miniaturization, and light weight of electronic equipment. Correspondingly, the flexible and flexible liquid crystals used in these electronic equipment have high The demand for molecular substrates is also increasing rapidly. [0003] Flexible liquid crystal polymer substrates are usually obtained by laminating copper foil, adhesives, ...

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): G02F1/1333
CPCG02F1/133305G02F1/1333
Inventor 李良彬赵浩远
Owner UNIV OF SCI & TECH OF CHINA
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