Basic concepts and requirements of Handern antistatic agents in Wuhan
DATE：2021/1/25 8:41:59 / READ： / SOURCE：This station
Basic concepts and requirements of Handern antistatic agents in Wuhan
There are only three ways to prevent the conduction of plastics. (2) there are three ways to remove electricity with electric appliances. (1) adjust the temperature of the air with antistatic agent which can eliminate static electricity.
1. Definition and function of antistatic agent
It can reduce the resistance of the surface layer of the material products and prevent the harm of static electricity, which is called the hydrophilic station. The antistatic agent is a kind of surfactant, which has an important role in the chemical structure
One group is divided into several nonpolar groups, that is, hydrophobic group is called lipophilic group. The antistatic agent can only be compatible with the plastic part, which makes the island form a layer of antistatic agent molecules on the surface of the strong migration products. I'm a member. Other functions are as follows
(1) The formation of a smooth molecular layer of antistatic agent on the surface of plastics can reduce friction and thus reduce the generation of electric charges. (2) the molecular layer of antistatic agent formed on the surface of plastics is a conductive layer, which can make the static electricity escape rapidly along the electric layer instead of (s) the antistatic agent itself has electric structure, which can produce electric neutralization phenomenon and eliminate static electricity.
2. Basic requirements of antistatic agent
It is hoped that the antistatic agent can meet the following requirements:
(1) Stable at molding temperature, no decomposition, no smoke, no coloring
(2) It does not reduce the processing performance, the physical properties of plastics, and the transparency of plastics
(3) It does not affect the function of other additives;
(4) No corrosion and wear forming equipment, easy to operate;
(5) However, it can penetrate into the surface separately, without causing stickiness, frosting, and hindering the printability, heat sealing, decoration and other secondary processing of plastics
(6) Colorless, tasteless, non-toxic, cheap.
2. Specific requirements for antistatic agents
Antistatic agents can be divided into internal and external antistatic agents. The internal antistatic is to mix it with other additives and plastics in the molding process, so it is also called mixed antistatic agent, which has good durability, so it is also called "permanent" antistatic agent. The external antistatic agent is made into a solution and then coated, sprayed, impregnated, and so on to adhere to the surface of the plastic.
An ideal internal antistatic agent should meet the following basic requirements:
(1) Good heat resistance, can withstand molding temperature;
(2) It has proper compatibility with resin and does not spray frost;
(3) It can be well used with other additives, and does not damage their properties: and does not damage the properties of Plastics: (4) it is easy to mix, does not cause difficulties in forming, and does not adhere when used for thin and smooth sheet
(5) Non toxic or low toxic, cheap.
As an ideal external antistatic agent, it should have the following basic requirements: (1) it should have a tolerable and separable dropping agent, which can cross the border with the border, keep the machine in place, and be rigid and economical. It has good anti-static and anti electric effect. It can also see the effect in low temperature and low humidity. It has good color changing, good handle, no irritation to the skin, low toxicity and good price. Make the weak current equipment be damaged because of wearing out
A few generations of pain and happiness, make people rest electric shock, in the cause of the fire.
(2) As a result of the accumulation of static electricity, it can cause electric spark, which is often the means of building the base product and anti static state. (8) When the static electricity accumulation exceeds 400V, I turn on more power. The main purpose is to prevent the generation of static electricity. It is very necessary to eliminate the static telephone. This concept and requirement of anti Hertz system 5. Increase the leakage of electric charge. And seed, seed is to inhibit the generation of electric back, surface conductive method, always make plastic
Author：admin