Unlock instant, AI-driven research and patent intelligence for your innovation.

Wear-resistant silver paste, and preparation method and application thereof

A technology of silver paste and wear-resistant metal, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, electrical components, etc. Grinding and other issues

Pending Publication Date: 2021-12-21
BAUHINIA VARIEGATA INK & CHEM (ZHONGSHAN) LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the process still has the problem of poor consistency in mass production. In the process of mass printing, the resistance value fluctuates greatly and the stability is not good.
In addition, part of the printed antenna is in long-term pressure contact with other components. It is difficult for the existing silver paste to achieve good hardness and wear resistance while ensuring the resistance and printability, resulting in the antenna being worn out during use. wear, causing the antenna to break and fail, making the mobile phone unable to receive signals

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
  • Wear-resistant silver paste, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1) Weigh 50 parts by mass of diethylene glycol ethyl ether acetate solvent and pour it into the reaction kettle, start stirring and heat to 40°C, then weigh 40 parts by mass of Toyobo BX7000A saturated polyester resin, 10 parts by mass of Add CNE-202 epoxy resin from Changchun Chemical into the reaction kettle slowly, heat up while stirring until the resin is completely dissolved at 80°C, then cool down to room temperature, use 800-mesh filter bag to filter impurities, and obtain a clear and transparent liquid resin carrier ;

[0039] 2) Take 37.5 parts by mass of the liquid resin carrier of step 1) into a new reactor, add 40 parts by mass of submicron conductive silver powder, 17.5 parts by mass of Nangong Jingxing's 800 mesh nickel-zirconium alloy powder, 1 part by mass Asahi Kasei MF-K60X blocked isocyanate, 1 part by mass of 2,4-dimethylimidazole epoxy curing agent, 1 part by mass of Tianshi PPW-0901 wax powder, 1 part by mass of Lubrizol dispersant 24000, 1 Deqian...

Embodiment 2

[0043] 1) Weigh 50 parts by mass of DBE solvent and pour it into the reaction kettle, start stirring and heat to 40°C, then weigh 10 parts by mass of Toyobo BX7000A saturated polyester resin, 40 parts by mass of CNE-202 from Changchun Chemical Industry Slowly add epoxy resin into the reaction kettle, heat up while stirring, until the resin is completely dissolved at a temperature of 80°C, then cool down to room temperature, use a 800-mesh filter bag to filter impurities, and obtain a clear and transparent liquid resin carrier;

[0044] 2) Take 37.5 parts by mass of the liquid resin carrier of step 1) into a new reactor, add 40 parts by mass of submicron conductive silver powder, 10 parts by mass of Nangong Jingxing's 800 mesh nickel powder, and 5 parts by mass of Asahi Kasei MF-K60X blocked isocyanate, 1.5 parts by mass of 2,4-dimethylimidazole epoxy curing agent, 4 parts by mass of Tianshi PPW-0901 wax powder, 1 part by mass of Lubrizol dispersant 24000, 1 part by mass Deqian...

Embodiment 3

[0048] 1) Weigh 60 parts by mass of diethylene glycol ethyl ether acetate solvent and pour it into the reaction kettle, start stirring and heat to 40°C, then weigh 8 parts by mass of Toyobo BX7000A saturated polyester resin, 32 parts by mass of Add CNE-202 epoxy resin from Changchun Chemical into the reaction kettle slowly, heat up while stirring until the resin is completely dissolved at 80°C, then cool down to room temperature, use 800-mesh filter bag to filter impurities, and obtain a clear and transparent liquid resin carrier ;

[0049] 2) Take 25 parts by mass of the liquid resin carrier in step 1) into a new reactor, add 40 parts by mass of submicron conductive silver powder, 20 parts by mass of Nangong Jingxing's 800 mesh zirconium powder, and 1 part by mass of Asahi Kasei MF-K60X blocked isocyanate, 1 mass part of 2,4-dimethylimidazole epoxy curing agent, 3 mass parts of Tianshi PPW-0901 wax powder, 5 mass parts of Lubrizol dispersant 24000, 5 mass parts Deqian 6800 d...

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
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
electrical resistanceaaaaaaaaaa
Login to View More

Abstract

The invention provides a wear-resistant silver paste, and a preparation method and application thereof. Saturated polyester resin, novolac epoxy resin, silver powder, a wear-resistant metal additive, an ester solvent, blocked isocyanate, an amine epoxy curing agent and PP wax powder are matched, so the wear-resistant silver paste has the advantages of being good in wear resistance and adhesive force, low in resistance value, capable of being used for preparing mobile phone printed antennas, and is suitable for occasions with high wear resistance requirements.

Description

technical field [0001] The embodiments of the present invention relate to but are not limited to the field of conductive materials, and in particular relate to a wear-resistant silver paste and its preparation method and application. Background technique [0002] In the 5G era, the number of smartphone terminal antennas continues to superimpose, and is developing in the direction of high integration and complexity. For this reason, built-in antennas have gradually replaced external antennas and become the mainstream of antenna design. [0003] The existing mobile phone built-in antenna is mainly prepared by two-color injection molding, printing molding (PDS), flexible circuit board (FPC), laser laser (LDS) and the like. Among them, the PDS process has gradually become the preferred antenna solution for the Sub-6 frequency band in the 5G era due to its advantages such as stable process, controllable size, high precision, simple and efficient manufacturing process. [0004] ...

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): H01B1/22H01B13/00
CPCH01B1/22H01B13/00
Inventor 刘仁祥冯文照肖洪德黄志明胡宾罗京周贝贝
Owner BAUHINIA VARIEGATA INK & CHEM (ZHONGSHAN) LTD