What are Conductive Plastics? Can plastic conduct electricity?

Conductive plastic is a type of plastic material that has conductive properties. Compared to conventional insulating plastics, conductive plastics have a higher electrical conductivity, which allows them to effectively conduct electrical charges and have conductive properties.

There are two main mechanisms of conductive plastics:

Add conductive fillers: Conductive plastics typically achieve conductive properties by adding conductive fillers. These conductive fillers can be conductive particles (e.g., carbon black, metal particles) or conductive fibers (e.g., carbon fibers, metal fibers) that form a conductive network in the plastic matrix, making the entire material conductive.

The plastic matrix is inherently conductive: some special plastic materials are inherently conductive and do not require the addition of conductive fillers. These plastics are often specially formulated and treated to make them conductive in their molecular structure.

Conductive plastics have many application areas, including but not limited to the following:

Static control: Conductive plastics are used to make anti-static products, such as anti-static flooring, anti-static packaging materials, anti-static clothing, etc. They can effectively control and dissipate electrostatic charges, reducing the problems and risks caused by static electricity.

Electronics and electrical appliances: Conductive plastics are widely used in the manufacture of housings, connectors, conductive gaskets, etc. for electronic components and electrical equipment. They provide electromagnetic shielding and electrostatic protection to help maintain the proper operation and safety of the equipment.

Sensors and touch screens: Conductive plastics are used to make conductive layers or films for electronic products such as sensors, touch screens, etc. These conductive parts are capable of conducting current or detecting touch signals for touch and interaction.

Medical devices: Conductive plastics are used in the field of medical devices to make electrodes, sensors, medical wires, etc. They play an important role in electrical conductivity and signal transmission in medical devices.

The electrical conductivity of conductive plastics can be adjusted and customized to meet the requirements of different applications according to specific needs. They provide electrical conductivity while still maintaining the lightness, plasticity, and cost advantages of plastic materials.

Plastics are a widely used non-conductive insulating material, but once they can conduct electricity, they are like tigers. In the early 80s of the 20th century, conductive plastics were still "delicate" in the laboratory, and now they have shown their magic in society.

Interestingly, conductive plastics were discovered by accident during an experimental blunder. One day in 1970, when Professor Shirakawa of the University of Tsukuba in Japan was instructing his students to do an experiment to make polyacetylene from ethylene gas, the students mistakenly added 1,000 times more catalyst than they actually needed to the reagent, and the result was not the black polyacetylene powder that should be obtained, but a silver sparkling film. It's more like metal than plastic.

Later, when Professor Shirakawa and American scientists studied the plastic film, they found that when iodine was mixed into the plastic, it actually conducted electricity, and the electrical conductivity increased by 30 million times.

Conductive plastic is a functional polymer material that is processed by mixing resin as a base material with conductive additives and processing plastic molding methods. It is mainly used in chips, electronics, integrated circuit packaging, electromagnetic wave shielding and other fields. Such as plastic conductive anti-static gas and infusion pipelines; Low-resistance plastic packaging trays, conductive anti-static plastic sheets, sheets, foams, and conductive films for electronic products are the most important categories of conductive polymer materials.

Conductive plastics have achieved a dramatic change from insulator to semiconductor to conductor, and are the most likely to change of any substance. Conductive plastics combine the electrical conductivity of a metal (i.e., a certain voltage is applied to the ends of the material and an electric current passes through the material) and the various properties of the plastic (i.e., the molecule of the material is made up of many small, recurring building blocks). Compared with traditional materials, it has the characteristics of light weight, easy molding, mechanical flexibility, high strength, low cost, adjustable resistivity (resistance value), etc., and can be easily synthesized or compounded into a variety of structural materials through molecular design.

In general, plastic is non-conductive and is an insulating material for a wide range of applications. But with the development of high technology, one has emerged in the non-conductive plastic family"Rebels"- Electrically conductive plastics. This particular plastic conducts electricity like metals such as copper, silver, and aluminum.

Why is that? It turns out that people have doped this plastic with iodine and other elements, so that it has changed its insulating properties and become a conductive material.

Most plastics are non-conductive, but there are electrically conductive plastics.

Conductive plastic is a functional polymer material that mixes resin and conductive substance and is processed by plastic processing. It is mainly used in electronics and integrated circuits.

packaging, electromagnetic wave shielding and other fields. It is the most important category of conductive polymer materials. Since the conventional application of plastics in the electrical field is as insulating materials, some people treat conductive plastics as special functional materials.

Non-conductive. According to the classification of electrical properties, it can be divided into insulators, anti-static bodies, conductive bodies, and high conductors. Generally, the resistance value above 1010 ·cm is called insulator, the resistance value in the range of 104 109 ·cm is called semiconductor or anti-static body, the resistance value is less than 104 ·cm is called conductor, and the resistance value below 100 ·cm or even lower is called high conductor.

According to the classification of the production method of conductive plastics, it can be divided into structural conductive plastics and composite conductive plastics.

Pure plastics are usually insulating materials and do not have poor conductivity. However, by adding specific conductive fillers, such as conductive carbon black, conductive fibers or conductive particles, plastics can be made conductive.

The presence of these conductive fillers can create a conductive network that creates a continuous conductive path between the fillers. When an electric charge is applied to a conductive plastic, the charge can be bridged to flow freely in the conductive network, achieving a conductive effect.

Therefore, the plastic itself does not have electrical conductivity, but by adding conductive fillers, it is possible to impart electrical conductivity to the plastic. This is a common way to achieve conductive plastic applications. Conductive plastics have a wide range of applications in electronics, electrical, electrostatic protection, electromagnetic shielding and other fields.

Advantages of Conductive Plastics:

1.Excellent electrical conductivity: Compared with traditional plastics, conductive plastics can effectively conduct electricity and eliminate static electricity, so they have been widely used in electronic equipment, communication equipment, power tools and other fields.

2.Good physical and mechanical properties: Conductive plastics have good mechanical strength, hardness, toughness and wear resistance while maintaining good electrical conductivity.

3.UV and oxidation resistance: Conductive plastics are resistant to UV rays and have good weather resistance and oxidation resistance, making them suitable for use in outdoor environments.

4.Diversified specifications: The production and processing methods of conductive plastics are flexible and can be customized according to different applications and customer needs.

5.Safe and reliable: conductive plastics will not produce sparks and static electricity, thus avoiding the occurrence of safety accidents such as fire and **.

In summary, conductive plastics have a wide range of applications in electronics, communications, aerospace, automobiles, and other fields.

Electrically conductive plastics have the advantages of plastics, such as light weight, good tensileness, elasticity and flexibility and ease of molding. At the same time, it has the advantages of metal - good electrical conductivity. Due to these advantages, metal can be used as a substitute for general transmission wires.

And because it can be done in such fine detail, it can be used in the field of microelectronics – for example, in integrated circuits that are becoming more and more dense and miniaturized. At present, mass-produced conductive plastics have been widely used in the microelectronics industry.

A large percentage of plastics are known to be non-conductive, but can be modified to be electrically conductive.

The stuff is different, and the conductivity is not the same. In the modification of conductive plastics, the following types of conductive fillers are used.

1. Fill with conductive carbon black.

2. Fill with carbon fiber.

3. The chaotic cover is filled with metal objects.

4. Fill with carbon nanotubes.

5. Filled with graphene.

6. It can also be coated with conductive material on the surface of plastic products.

The effects of different fillers on the physical properties of plastics are also different.

Here are some common plastic materials that can conduct electricity:

Polystyrene (PS): Polystyrene can be made conductive by adding conductive fillers, such as carbon black or conductive fibers.

Polypropylene (PP): Polypropylene can be made conductive by adding conductive fillers, such as carbon black or conductive fibers.

Polyethylene (PE): Polyethylene can be made electrically conductive by adding conductive fillers such as carbon black or conductive fibers.

Polycarbonate (PC): Polycarbonate itself has a high resistivity, but conductivity can be achieved by adding a stuffy air-conductive filler.

Polyamide (PA): Polyamides can be made conductive by adding conductive fillers, such as carbon fibers or metallic fibers.

Polyester (PET): Polyester can be made electrically conductive by adding conductive fillers, such as carbon or metal fibers.

Polyetheretherketone (PEEK): Polyetheretherketone itself has a high resistivity, but by adding conductive fillers, conductive properties can be achieved.

Polytetrafluoroethylene (PTFE): PTFE can be made conductive by adding conductive fillers, such as carbon fiber or metal fiber.

These plastic materials can be electrically conductive by adding conductive fillers during the manufacturing process or by employing special formulations. Conductive fillers can be conductive particles, conductive fibers, or conductive polymers, among others. The choice of electrically conductive plastic depends on the requirements of the application and the level of conductive properties required.

Conductive polymer is a kind of polymer with conductive properties, also known as conductive plastics and conductive plastics. When the polyacetylene structure has a conjugated double bond, the electrons are not bound by atoms and can move freely, and after doping, the electrons can be removed to form electric holes, or electrons can be added to make electrons or electric holes move freely on the molecular chain, thus forming conductive molecules. Common conductive polymerization pure artifacts are polyacetylene and polyaniline.

Polypyrrole, polythiophene, and polystyrene.

brace, to line pants stupid and their derivatives.

1967 Tokyo Institute of Technology, Japan.

When Dr. Bian Hengzhi of South Korea made polyacetylene in the laboratory, he added a thousand-fold excess of catalyst, so that the black powder polyacetylene (cis polyacetylene) that should have been obtained turned into a silvery-white film (trans-polyacetylene). At the time, he was an assistant at the Ikeda Research Institute. Based on these results, Dr. Hideki Shirakawa began his research on polyacetylene.

In 1976, in the American chemist Allen.

Mark Diarmid vs. physicist Allen? At Haig's invitation, Shirakawa went to the University of Pennsylvania in the United States.

Make an access. They used iodine vapor to oxidize polyacetylene, and later measured the trans-acetylene doped with iodine and found that the conductivity increased by a factor of one billion.

In the summer of 1977, Shirakawa, Mark Diarmid and Haig presented their findings, for which they were awarded the 2000 Nobel Prize in Chemistry.

In general, pure plastics are insulating materials and do not have electrical conductive properties. However, by adding conductive fillers such as carbon black, conductive fibers, or conductive particles, it is possible to impart electrical conductivity to plastic materials.

The presence of conductive fillers can create a conductive network in which filler particles are connected to each other and form a continuous conductive path trapping this. In this way, when an electric charge is applied to a conductive plastic, the charge can flow freely in the conductive network, resulting in a conductive effect.

There are two main conductive mechanisms of conductive fillers:

Tunneling effect: In conductive plastics, tiny gaps between conductive fillers form tunnels through which electrons can jump from one filler particle to another. This transition process is known as tunneling, and it causes the charge to be conducted in a conductive network.

Contact effect: The point of contact between the conductive filler and the plastic matrix also plays an important role. The contact between the filler particles and the substrate can form a conduction path for electrons, and through the contact point between the filler and the substrate, the charge can flow in the conductive network.

It should be noted that factors such as the amount of conductive filler, particle size, dispersion, and the properties of the matrix material will affect the conductivity. Proper filler selection and control can achieve the desired conductive properties and meet the requirements of the specific application.

It is worth mentioning that conductive plastics are usually widely used in industrial and technological fields, such as the manufacture of electronic components, electromagnetic shielding materials, electrostatic protection equipment, sensors, etc.