Jute Carbon Epoxy Coating for Mild Steel Corrosion Resistance
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Solution Overview
Problem
Existing polymeric coatings used for corrosion protection are susceptible to degradation under severe exposure conditions, leading to the ingress of corrosive species and accelerated corrosion of metal surfaces, necessitating improved corrosion resistance for enhanced service-life and economic benefits.
Innovation Solution
A submicron-/nano-jute carbon/epoxy composite anti-corrosion coating is produced by heating jute sticks, pyrolyzing and grinding them to form pyrolyzed carbon, followed by ball milling to create a composite with epoxy resin and a hardener, which is then applied on a mild steel substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polymeric coatings are used for corrosion protection, then strong and efficient protection is provided, but degradation occurs under severe exposure conditions leading to ingress of corrosive species
Solution Approach 1:
The patent applies composite materials by combining polymeric coating with submicron/nano jute carbon particles to create a composite coating system. The jute carbon particles are incorporated into the polymeric matrix to enhance corrosion resistance and improve durability under severe exposure conditions, directly resolving the contradiction between providing strong protection and maintaining long-term durability.
Solution Approach 2:
The patent utilizes parameter changes by modifying the physical and chemical properties of the polymeric coating through the addition of carbon-based nanoparticles. The submicron/nano jute carbon particles alter the coating's morphological, electrical, and chemical parameters to enhance its protective performance and resistance against degradation mechanisms.
2Object-affected harmful factors
If protective coatings are applied to prevent ingress of corrosive species, then corrosion protection is achieved, but coating failure leads to accelerated corrosion of metal surfaces
Solution Approach 1:
The composite coating combines polymeric matrix with submicron/nano jute carbon particles to create a synergistic system where the carbon particles enhance the coating's barrier properties and resistance to corrosive species ingress, thereby improving protection efficiency and preventing coating-related corrosion acceleration.
Solution Approach 2:
The patent employs submicron/nano jute carbon particles derived from agricultural waste (jute sticks) as a cost-effective reinforcement material. These particles provide enhanced protective performance at low cost, replacing expensive traditional corrosion protection materials while achieving superior protection efficiency.
3Reliability
If submicron/nano jute carbon is added to epoxy resin to form composite coating, then corrosion resistance is significantly improved, but manufacturing process complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-processing the jute sticks through heating, pyrolysis, and grinding to produce submicron/nano jute carbon particles before incorporating them into the epoxy resin coating system. This pre-preparation of the carbon reinforcement material simplifies the overall manufacturing process by separating the carbon production step from the coating application step.
Solution Approach 2:
The patent utilizes parameter changes in the form of controlled pyrolysis temperature (500-1000°C) and heating conditions (60-150°C for 6-28 hours) to transform jute sticks into submicron/nano carbon particles with specific properties. These controlled parameter changes enable efficient conversion of agricultural waste into effective reinforcement materials for the composite coating.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composite coating exhibits significantly improved corrosion resistance, with a corrosion resistance of 106 to 1012 Ohm per square centimeter and a corrosion current density of 0.5 to 1.5 nano Amperes per square centimeter, offering 80 to 95% higher protection efficiency compared to epoxy coatings without jute carbon.
Implementation Method 1
heating a jute stick at 60 to 150 degrees centigrade (° C.) for 6 to 28 hours
Implementation Method 2
pyrolyzing the first powder at 500 to 1000° C. to form a pyrolyzed carbon
Implementation Method 3
ball milling the second powder at 1500 to 5000 revolutions per minute (rpm) speed for 8 to 30 hours under wet condition to form a submicron-/nano-jute carbon
Data Source
AI summary
A method for producing a submicron-/nano-jute carbon/epoxy composite anti-corrosion coating is described. The method includes heating a jute stick, grinding the jute stick to form a first powder; pyrolyzing the first powder to form a pyrolyzed carbon; grinding the pyrolyzed carbon to form a second powder; ball milling the second powder under the wet conditions to form a submicron-/nano-jutecarbon; mixing the submicron-/nano-jutecarbon, and an epoxy resin to form a first mixture; mixing a hardener with the first mixture to form a second mixture, and coating the second mixture on a mild steel substrate and curing to form the submicron-/nano-jutecarbon/epoxy composite anti-corrosion coating.