Corrosion can be problematic in hindering manufacturing and
significantly impacts the global economy. Corrosion is nothing but a chemical
reaction between a material and its environment that produces a deterioration
of the material and its properties. Based on how a part is used, and in what
conditions it is exposed to the environment, kind of corrosion that develops,
may differ.
Forms of Corrosion:
The general form of corrosion: Identified by the uniform
formation of corrosion products that causes an even thinning of the substrate
steel.
The localized form of corrosion: Caused by difference in
chemical or physical conditions between adjoining sites.
The bacterial form of corrosion: Caused by the formation of
bacteria with an affinity for metals on the surface of the steel.
Galvanic/Dissimilar Metal form of corrosion: Caused when
dissimilar metals come in contact, the difference in electrical potential sets
up a corrosion cell or a bimetallic couple.
The most popular corrosion is the corrosion in Vehicles, which is a
major concern to all of us. Unfortunately, the corrosion problems are numerous
and the solutions not well understood by the majority of car owners.
Many parts of the world experience extreme snow, rain, and ice storms
every year for a prolonged period. The materials used for anti-icing and
de-icing are highly corrosive, which leads to the breakdown of several parts,
safety hazards, and also rise in repair and replacement costs. Hence the
corrosion-resistant materials are in demand.
Corrosion is an unavoidable fact in everyday life but always receives
attention to control due to its technical, economical, and aesthetical
importance. Corrosion inhibitors are one of the most widely used, and
economically viable methods for protecting metals and alloys against corrosion.
Typical corrosion inhibitors are bio-toxic organic compounds, which have
serious issues on toxicity. Considering the toxicity of inhibitors there is
tremendous interest in searching for an eco-friendly and non-toxic biodegradable
corrosion inhibitor.
Corrosion resistance coating can help prevent degradation brought on by
oxidation, moisture, exposure to Chemicals, and more. They provide extra
protection to metal parts and function as a barrier to prevent contact between
corrosion materials and chemical compounds, which can increase the lifespan of
a part as well as reduce maintenance and replacement costs.
Environmental friendliness, cost, availability, and toxicity are some
factors that should play an extremely important role when it comes to choosing
an inhibitor for a particular condition. The toxicity, biodegradability, and
bioaccumulation of conventional corrosion inhibitors discharged into the
environment are a matter of huge concern. Even though the environmental implications
of commercial corrosion inhibitors are not fully understood, it is not unknown
that their chemical components have hazardous impacts. Likewise, the ecological
and health risks associated with the organic inhibitors have pushed us towards
finding or using non-toxic or biodegradable corrosion inhibitors that would
impart maximum protection to the metallic structures but have the least impact
on mankind and nature.
There are many easily available corrosion-resistant materials like
synthetic, plastic, and fiber, which are available at low cost. These materials
are extensively used in all the applications where corrosion occurs. But it is
not considered to be a better solution because already our Mother Earth is
destroyed by the usage of such plastic and fibers in many different ways. We
are unknowingly adding one or the other plastic material every day to nature,
which has made the ecological balance miserable to a larger extent. The future
generation is going to witness a world full of plastic—an unrealistic world.
This great concern toward nature has given rise to invent the best
material for corrosion protection that is a “Biodegradable corrosion resistant
spray”, which contains the nature-friendly materials and reduces the harm to
mankind. As well as serves the major purpose of protecting the vehicles from
corrosion in all different seasons.
The word biodegradable is not used fancily here in preparation of such a
spray. It has been proved by researchers and company standards for achieving
success in presenting such a biodegradable material for corrosion protection.
The ultimate goal of this type of invention is to achieve a win-win solution by
protecting nature as well as our vehicles.
Biodegradable corrosion resistant spray act through forming a film on
the surface of the metals and they can act as anodic, cathodic, or mixed
inhibitors. The formation of this protective film happens with the help of
strong interactions, such as chemisorption, and electrostatic adsorption that
prevent the corrosive species from attacking the metal surface. The corrosion
inhibition efficiency of a biodegradable inhibitor relies on its adsorption
ability and mechanical, structural, and chemical characteristics of the
adsorption layers formed under a specific environment.
Conclusion:
Corrosion inhibitors are extensively used for the protection of metals
and equipment and they are required to be acceptable, non-toxic, and
eco-friendly due to environmental concerns. The cost and harmful effects
associated with the commercial, organic, and inorganic inhibitors have raised
considerable awareness in the field of corrosion mitigation. Thus, corrosion
scientists and engineers are more inclined towards the implication of
biodegradable corrosion-resistant sprays inhibitors that are inexpensive, readily
available, environmentally friendly, and ecologically acceptable, and
renewable.
