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Industry news

A detailed introduction to a silver paste specifically designed for EL backlight sources

Time:2021-12-20Number:1286

Research on Platinum Conductive Silver PasteIt is an application produced by Advanced Institute Technology Co., Ltd. (YB)EL backlight specialized silver pasteIt is finely researched from ultrafine silver powder and low-temperature cured thermoplastic resin, suitable for screen printing.

Typical applications

Commonly used for EL backlight sources.

General characteristics

It has good printability, conductivity, oxidation resistance, hardness, and extremely strong adhesion.

TECHNICAL INDEX

Physical performance indicators

test method

Testing standards

Appearance

Visual observation

Light gray colloid

Packing material

silver

Odor

slight

Viscosity (Pa. S)

NDJ-7 rotary viscometer, II rotor, 75rpm, 25 ℃

10-15

Fineness (μ m)

Scraper fineness meter

< 10

Solid content (Wt%)

55±5%

Coating area (cm2/g)

Depends on the thickness of the film layer

100-200

Performance indicators after curing

test method

Testing standards

Slurry resistance (m Ω/□)

multimeter

10-12

Adhesion

3M810 tape, vertically pulled

No peel off

Hardness (H)

Chinese pencil

≥2

Working temperature (℃)

Line temperature

< 70

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Instructions and guidance for use

Substrate: Can be used on both PET and PC sheets.

Mixing: thoroughly mix before use.

Dilution: After stirring evenly, this product can be used. Do not add diluents. If diluents are added, product quality and performance cannot be guaranteed. If there are special requirements, the matching diluent X2200 should be used. It is recommended to gradually add diluent at a ratio of 0.5%, and the recommended amount of diluent should not exceed 2%.

Printing: This product can be used on both PET and PC sheets, and the thickness and resistance of the cured film are affected by many related factors, such as the size, tension, scraping hardness, angle and speed of the screen, and the thickness of the photosensitive paste.

Recommended curing process
        Thickness: Dry film 4-6 μ m

Wire mesh: Use 200-300 mesh polyester wire mesh or stainless steel wire mesh

IR drying oven: 120 ℃ for 2 minutes

Oven: 135 ℃ for 40 minutes

Storage conditions and shelf life

Sealed and stored in a dry, cool, and dark place, with a storage temperature below 30 ℃ and refrigerated;

After refrigeration, it needs to be left for 2-3 hours to recover to room temperature and thoroughly stirred for 10 minutes before printing;

Unopened cans with a shelf life of 6 months.

Safety operation standards

Carefully read the product instructions, preventive measures, and first aid measures before use;

This product contains organic solvents, and good ventilation should be maintained during use to avoid excessive steam inhalation into the body; If it comes into contact with the skin, it should be washed promptly with water and soap.

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