Many type of human being may not wonder about it, yet rubber is, theoretically, a pretty fascinating substance. From its inception, it was even more of a novelty than a beneficial create of latex. However before, through time, remarkable inventors like Charles Goodyear and also Michael Faraday made considerable improvements in the moulding and activation of organic rubber, ultimately resulting in the advancement of our favorite polymers in electronics today.

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When we talk around the properties of rubber, among the many common concerns is whether rubber conducts electrical power or not. Most human being have an idea that steels conduct electricity while insulators such as plastic and timber do not. The reality is even more than meets the eye.

So, does rubber conduct electricity? No, rubber does not conduct power. Its lengthy chain-favor polymer structure stays clear of the electrons from moving freely. This is as a result of the solid bonding of electrons in its valence shell that limits the deliver of electrical present.

In rare situations, the conductivity of rubber depends on the sustaining material(carbon or metallic substances). If it consists of complimentary electrons, it might make rubber slightly conductive. Even so, these reactions require assistance, high temperature, and voltage for charged ions/electrons to oscillate freely.

Additional, let us discuss Rubber and also its main feature: Electrical Insulation.

What is Rubber?

Rubber, likewise recognized as cis-polyisoprene, is a polymer formed via the polymerization of cis-1, 4-polyisoprene. It is totally made of carbon and also hydrogen atoms (C 5 H 8).

Origin: It’s discovered most generally in latex, but additionally the sap from trees and various other plants as well as particular kinds of seaweed.

Uses: It is also mixed with various substances to produce various types of rubber such as Nitrile, EPDM, Butyl, and so on.

Its elasticity makes it helpful for a variety of commodities, particularly those provided for sporting products, bumpers, and also tires. It is very resistant to tear or rupture over time.

Types of Rubber

Types: Following are the 2 wide forms of rubber:

1. Natural rubber (or India rubber): It is known as latex, a milky white juice that oozes from cuts in trees. This process is dubbed “tapping”. It consists of little amounts (5%) of proteins, resins, inorganic salts, and also fatty acids.

Its framework makes it similar to silicone and gutta-percha. It is synthesized with conjugated diene((2-methyl-1,3-butadiene), additionally recognized as monomer isoprene. The double bonds in it are in z configuration, improving its elasticity.


2. Synthetic rubber (Neoprene): It is an man-made elastomer for which crude oil and petrochemicals serve as the raw material. It is formed through a combination of the following conjugated dienes:

Isoprene (2-methyl-1,3-butadiene)1,3-butadiene,Chloroprene (2-chloro-1,3-butadiene)


More Properties of Rubber

Hard framework due to chemical complace (van der Waals forces)High tensile strengthHigh abrasion resistanceThe resistivity of tough rubber at 20 degrees C quantities up to (1-100) x 10¹³ ohm m and also conductivity remains zero.

Why does not Rubber Conduct electricity?


To understand this, let’s analyze the molecular framework and also complace of rubber:

Chemical Formula :

2-methyl-1,3-butadiene, < CH-2=(CH-3)CH-CH=CH-2 >

1. Rubber is a hydrocarbon comprising hydrogen and double bonds of carbon. The ratio of carbon to hydrogen atoms constantly exists as 5:8.

2. In addition, its non-metallic structure is organized via covalent bonds having actually primary units of polymers(monomers). These units are entangled in a prolonged chain formation.

3. Its atomic develop is deprived of cost-free electrons (conduction bands or charge carriers) in the external shell. As such, there are no electrons to jump from one atom to one more for a smooth circulation of electrical existing.

4. On a comparable note, according to Band theory, rubber has just sigma bonds (solid covalent bonds) in addition to vulnerable pi bonds (non-overlapping) in its low energy valence band. Hence, leading to an empty greater energy band (zero complimentary electrons).

5. These pi bonds exist at positions favor 2,6,10 and also are not alternatively developing a huge power gap in between the two bands. As an outcome, all the bonding electrons of the valence band also remain positioned.

And as soon as specific electric voltage comes is passed through the ends of the rubber, the electrons in the valence resist their movement to the conduction band, conducting nil electricity.

In addition, it acts as an insulator till it’s heated previous its electric breakdvery own temperature. Until then, both forms of rubber are bona fide electric insulators.

Exception: Though many type of products made from rubber additionally contain other materials that have the right to make them conduct power. For instance, a lot of rubbers offered in shoes – and periodically gloves and also wetsuits – are mixed with carbon babsence, which conducts electrical energy once combined through rubber.

This provides the rubber slightly conductive under unspecific circumstances.

What is the difference between a conductor and an insulator?

Conductor: It is an object that easily transfers warmth, power, or sound from one atom to one more. The molecules inside it have an unalso distribution of electrons that readily passes an electrical present and enables a huge amount of charge to flow with it.

Example: Copper wire, Graphite, Human body (prone to electrical shock), salts (aqueous solutions)

Insulator: It is identified as a substance that does not pass an electrical existing easily, and also permits just a negligible amount of charge to circulation with it under excessive voltages. Otherwise, it opposes and also stores it.

Example: Glass, Rubber, Plastic, Wood, etc.

The terms conductor and insulator are based on the capacity of a product to enable the activity of electrical charge. The steels that we are offered to handling in many circuiattempt are examples of conductors.

Insulators are typically supplied in location of a metal wright here corrosion is a hazard bereason their literal function is to proccasion the flow of electrical power.

How deserve to you tell if a substance conducts electrical energy or not?


Conducting power essentially indicates a material have the right to let electric power pass through it. It’s necessary to recognize that not all products have this ability. Sometimes this depends on the form of material and also its components too.

A conductor has mobile electrons and also atoms, a semiconductor has ions or holes of electrons and an insulator is devoid of mobile charges.

To be certain, listed below are the 3 facets that identify conductivity and also are dependent on the material’s nature.

1. Free Ions: The compounds with strong conductivity break into charged atoms or ions in water. They are bound in addition to attrenergetic electrostatic forces and also let the current circulation smoothly.

They are likewise deficient in carbon atoms. They are not natural. On the contrary, insulators are not natural and weak electrolytes in nature and also contain carbon atoms.

2. Temperature: Sudden temperature climb, boosts the kinetic power of ions in conductors compelling them to move hastily.

But, in the situation of rubber, temperature elevation will certainly not influence. However before, it may deterioprice itself and obtain discolored due to its polymer framework. The heat affects the lengthy chains resulting in vibration and shrinkage.

3. Density: Low-density substances have actually higher electric conductivity. For example alkali metals. They contain one free electron in their external shells transferring current throughout their surface.


Rubber is a product of latex through its unique properties that are offered across different production sectors. It likewise works as an insulator because it doesn’t contain any kind of free electrons to conduct electrical energy. Its internal framework provides individual electrons secure eliminating all avenues for them to relocate openly delivering an electric existing.

It is a product made from the polymerization of numerous compounds joined together in chains. Rubber is existing in practically everything we do. Rubber from your car’s tires is the factor you, and also other chauffeurs on the road, are safe while driving in negative weather and other conditions.

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Many kind of world usage it to seal windows, cars, and also buildings from the weather. They additionally use it for boots, gloves, security pads, balloons, mattresses, surgical gloves, and also bandages as it offers comfort and security from electrical shocks.