Preparation technology of touch screen silver paste and its application in different fields

Touch screen silver pasteIt is an important material used for preparing touch screen electrodes. Due to its excellent conductivity, transparency, and mechanical stability, silver paste is widely used in fields such as capacitive touch screens, electronic paper, and flexible displays.

1、 Preparation technology of touch screen silver paste

The preparation technology of touch screen silver paste mainly includes three aspects: raw material selection, paste formula design, and paste preparation process control.

1. Raw material selection

The commonly used raw materials for touch screen silver paste currently include pure silver powder, organic solvents, surfactants, and binders. Among them, pure silver powder is the core raw material for preparing touch screen silver paste, and its quality directly affects the conductivity and transparency of the silver paste.

2. Slurry formula design

The formula design of touch screen silver paste needs to be reasonably adjusted according to different application requirements and raw material characteristics. Generally speaking, the formula for touchscreen silver paste should consider the following factors:

(1) The content and particle size of pure silver powder

(2) Types and amounts of organic solvents added

(3) Types and amounts of surfactants added

(4) Types and amounts of adhesives added

3. Process control of slurry preparation

Touch screen silver pasteThe preparation process includes multiple steps such as mixing, dispersion, filtration, and drying. Strict control of various parameters is required during the preparation process, including the selection of raw materials, proportioning, mixing uniformity, filtration speed, and drying conditions. Among them, the uniformity of mixing is a key factor in ensuring the quality of silver paste.

2、 Application of touch screen silver paste in different fields

1. Capacitive touch screen field

Capacitive touch screen is currently one of the most common touch screen technologies.Touch screen silver pasteAs an important material for preparing electrodes for capacitive touch screens, it has been widely used in the field of capacitive touch screens. Touch screen silver paste has excellent conductivity and transparency, which can improve the sensitivity and response speed of capacitive touch screens.

2. Electronic paper field

Electronic paper is a new type of display technology that features low power consumption, high contrast, and wide viewing angle. Touch screen silver paste can be used to prepare electronic paper circuit boards, improving the conductivity and stability of electronic paper.

3. Flexible display field

Flexible display is a new type of display device that has the characteristics of being lightweight, flexible, and foldable. Touch screen silver paste can be combined with flexible substrates to prepare components such as flexible touch screens and sensors, making flexible displays more intelligent and practical.

3、 When purchasing touch screen silver paste, the following points should be noted:

1. Quality assurance. The quality of touch screen silver paste is directly related to the conductivity, transparency, and stability of the touch screen, so it is very important to choose silver paste with guaranteed quality.

2. Batch consistency. The same batch of silver paste should maintain consistency in terms of raw material types, ratios, processing techniques, etc., to ensure that they have the same quality characteristics.

3. Supplier reputation. Choosing a well-known and reputable supplier can reduce risks and provide better after-sales service and technical support.

4. Application areas. Different application fields have different quality requirements for silver paste, so it is necessary to clarify one's own needs and choose a matching silver paste model before purchasing.

5. The price is reasonable. Price is an important factor to consider when purchasing touch screen silver paste. Generally speaking, silver paste with low or high prices needs to be carefully considered, and it is recommended to choose products with reasonable prices.

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