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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Industrial Safety

Background:

  • Chemical leakages are common in industrial and laboratory settings, posing risks of material damage and injury.
  • Existing neutralizing mats are limited, typically addressing only acid or alkali solutions, not both simultaneously.
  • There is a need for advanced materials capable of controlled, simultaneous neutralization of diverse chemical spills.

Purpose of the Study:

  • To develop and demonstrate a novel dual component active mat (DCAM) for simultaneous neutralization of acid and alkali leakages.
  • To utilize microencapsulation technology with food-grade ingredients for enhanced safety and efficacy.
  • To validate the performance of the DCAM in neutralizing common industrial chemicals.

Main Methods:

  • Development of acid-neutralizing mats with sodium carbonate microencapsulated in sodium alginate (MC-ASC).
  • Incorporation of alkali-neutralizing mats with encapsulated citric acid (MIRCAP CT 85-H).
  • Characterization of DCAM performance using titration, pH strips, and conductivity measurements; material analysis via SEM, DSC, and TGA.

Main Results:

  • The DCAM effectively neutralized simultaneous acid (HCl) and alkali (NaOH) solutions up to 10% (v/v).
  • Conductivity measurements showed over 70% reduction for 1-2% HCl and NaOH solutions, indicating significant neutralization.
  • Microcapsule sizes ranged from 2-8 μm (MC-ASC), and all mat components exhibited thermal stability above 150 °C.

Conclusions:

  • The developed DCAM offers a novel solution for controlled, simultaneous neutralization of both acidic and alkaline chemical leaks.
  • The use of food-grade microencapsulated ingredients in a nonwoven polypropylene matrix provides a safe and effective spill response material.
  • This technology has significant potential for improving safety protocols in laboratories and industries handling corrosive chemicals.