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Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
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Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
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Author Spotlight: An Antimicrobial Fabric Using Nano-Herbal Encapsulation of Essential Oils
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Natural Additives Improving Polyurethane Antimicrobial Activity.

Natalia Sienkiewicz1, Sylwia Członka1

  • 1Institute of Polymer & Dye Technology, Faculty of Chemistry, Lodz University of Technology, 90-537 Lodz, Poland.

Polymers
|July 9, 2022
PubMed
Summary
This summary is machine-generated.

Natural compounds can enhance polyurethane

Keywords:
antibacterial propertiesnatural additivespolyurethane foams

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Area of Science:

  • Polymer science
  • Materials science
  • Biotechnology

Background:

  • Polyurethanes (PUR) are widely used but susceptible to microbial growth, posing health risks.
  • Conventional disinfectants often exhibit high toxicity.
  • There is a need for safer, effective antimicrobial additives for polymers.

Purpose of the Study:

  • To review the impact of natural compounds on the antibacterial and antifungal properties of PUR.
  • To explore natural extracts as alternatives to synthetic antimicrobial agents.
  • To highlight the potential of modified PUR in hygiene-critical applications.

Main Methods:

  • Literature review of studies on natural compounds incorporated into PUR.
  • Analysis of research on the antimicrobial efficacy of these modified polyurethanes.
  • Evaluation of natural extracts for antibacterial, antifungal, and antiviral activities.

Main Results:

  • Natural compounds show promise in imparting antibacterial and antifungal properties to PUR.
  • These natural additives offer a broader spectrum of activity, including against viruses, compared to some antibiotics.
  • Modified PUR can serve as effective antimicrobial materials in healthcare, food, and other industries.

Conclusions:

  • Natural compounds are viable additives for creating antimicrobial polyurethanes.
  • This approach offers a safer alternative to toxic disinfectants.
  • Antimicrobial PUR holds significant potential for various applications requiring sterile conditions.