Tell about the types and characteristics of plastic antistatic agents

November 02 06:11:40, 2023

Plastic antistatic agents are usually some surfactants, the basic feature is that the same molecular structure contains both hydrophilic and lipophilic groups. Let us look at the types and characteristics of plastic antistatic agents:


Tell about the types and characteristics of plastic antistatic agents

First, the classification of plastic antistatic agents:
According to whether the hydrophilic group in the molecule can be ionized, it can be divided into two types: ionic and nonionic antistatic agents. Among them, the ionic type can be further divided into three types: cationic type, anionic type and zwitterionic type.
Second, the characteristics of plastic antistatic agent:
1. The non-ionic antistatic agent has good compatibility and heat resistance, and has no adverse effect on the physical properties of the product, but the amount is relatively large.
2. The cationic antistatic agent is excellent in antistatic property, but has relatively poor heat resistance and is harmful to the skin, and thus is generally used as an external coating type.
3. The most characteristic of zwitterionic type is that it can be used together with cationic type and anionic antistatic agent SN. The antistatic effect is similar to that of 1000-cation type, but the heat resistance is not as good as non-ionic type.
4. The anionic heat resistance and antistatic effect are better, but the compatibility with the resin is poor and the transparency of the product is affected.
5. There is also a polymer type which has not been widely used at present and is generally used as an external coating type antistatic agent B in foreign countries.

LED Lights

LED Lamp Bead light-emitting principle

The terminal voltage of the PN junction constitutes a certain potential barrier. When the forward bias voltage is applied, the potential barrier drops, and the majority carriers of the P region and the N region diffuse to each other. Since the electron mobility is much larger than the hole mobility, a large number of electrons will diffuse into the P region, which constitutes the injection of minority carriers into the P region. These electrons recombine with holes in the valence band, and the energy obtained during recombination is released in the form of light energy. This is the principle of PN junction light emission.


Features of LED Lamp Beads

1. Voltage, LED lamp beads use low-voltage Power Supply, and the power supply voltage is between 2 and 4V, which varies according to different products, so it is driven by a high-voltage power supply. Safer power supply, especially for public places.

2. Current, the working current is between 0 and 15 mA, and the brightness becomes brighter with the increase of the current.

3. Efficiency, energy consumption is reduced by 80% compared with incandescent lamps with the same luminous efficiency.

4. Applicability, very small, each unit LED chip is 3 to 5 mm square, so it can be prepared into various LED lamp bead shaped devices, and is suitable for variable environments.

5. Color, changing the current can change color. The light-emitting diode can easily adjust the energy band structure and band gap of the material through chemical modification methods to realize red, yellow, green, blue and orange multi-color luminescence. For example, an LED that is red when the current is small, can turn orange, yellow, and finally green as the current increases.

Led Lights,In-Line Led Light Emitting Diode,In-Line Led Short Feet,1W High Power Lamp Beads

Dongguan XINYUDA Technology Co., Ltd. , https://www.gdxige.com