How to test the electrical resistivity of conductive plastics?
Many friends at work ask, how is the electrical resistivity of conductive plastics tested? To understand this, we need to first know what definition of resistivity is. Resistivity is a physical quantity used to represent the electrical resistance characteristics of various substances. The ratio of the product of the resistance and cross-sectional area of a component made of a certain substance (at room temperature of 20 ° C) to its length is called the resistivity of that substance. Electrical resistivity is independent of factors such as the length and cross-sectional area of a conductor, and is the electrical property of the conductor material itself. It is determined by the material of the conductor and is temperature dependent. Its international unit is Ω · m.
The formula for calculating the resistivity of conductive plastics is R= ρ L/S, where ρ It is the electrical resistivity, where L is the length of the material and S is the area. It can be seen that the resistance of a material is directly proportional to its length, that is, when the material and cross-sectional area remain constant, the longer the length, the greater the material resistance; and inversely proportional to the cross-sectional area of the material, that is, when the material and cross-sectional area remain constant, the larger the cross-sectional area, the lower the resistance.
Article source: Taishan conductive masterbatch
-
04-11
Taishan conductive PP masterbatch: How to use defoaming masterbatch?
Defoaming masterbatch is suitable for enterprises that use PE and PP recycled plastics for product production. The trace amount of moisture contained in raw materials has a very serious impact on the
-
11-13
Characteristics and uses of conductive masterbatch plastics
Characteristics and uses of conductive masterbatch plastics1、 Characteristics of conductive masterbatch plastics:① Most plastics are lightweight, chemically stable, and will not rust;② Good impact res
-
10-13
What is PP talc powder masterbatch
What is the masterbatch of PP talc powder?PP talc powder masterbatch is a plastic modified filler, mainly composed of talc powder, which is a particle mixed with polymers or other carriers. It is main
-
08-09
Taishan Conductive Cloud Masterbatch Manufacturer Tells You Why to Use Conductive and Anti static Engineering Plastics
1. The fundamental physical properties of static electricity are:(1) Attracting or excluding;(2) There is a potential difference with the earth;(3) Discharge current will occur.These three characteris