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Related Concept Videos

Plasticizers01:31

Plasticizers

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Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
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Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies
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Novel method for producing plasticised PLA films: method, materials, and characterization.

Gerardo Coppola1, Sebastiano Candamano2, Catia Algieri3

  • 1Department of Computer, Modeling, Electronics and Systems Engineering, University of Calabria Via P. Bucci Cubo 42C Rende 87036 CS Italy sudip.chakraborty@unical.it stefano.curcio@unical.it.

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Summary
This summary is machine-generated.

This study introduces a new method for creating plasticized polylactic acid (PLA) films for packaging. Glycerol enhances film properties like strength and adhesion without significantly altering thermal characteristics.

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Area of Science:

  • Polymer Science
  • Materials Science
  • Biomaterials Engineering

Background:

  • Polylactic acid (PLA) is a biodegradable polymer with potential for food packaging and biomedical uses.
  • Developing effective methods for plasticizing PLA is crucial for enhancing its properties and expanding its applications.
  • Existing methods may have limitations in controlling film morphology and performance.

Purpose of the Study:

  • To present a novel casting method, air-induced, temperature-controlled phase separation (AITCPS), for producing plasticized PLA films.
  • To investigate the impact of glycerol concentration on the physiochemical properties of PLA films.
  • To evaluate the suitability of these films for food packaging and biomedical applications.

Main Methods:

  • Utilized air-induced, temperature-controlled phase separation (AITCPS) for film fabrication.
  • Incorporated varying ratios of glycerol as a plasticizer in the PLA matrix.
  • Conducted comprehensive characterization including morphological, thermal, mechanical, and interfacial property analyses.
  • Assessed water vapor transmission rates and antimicrobial activities.

Main Results:

  • The AITCPS method successfully produced highly dense PLA matrices.
  • Glycerol addition minimally affected the thermal properties of the PLA films.
  • Significant enhancements were observed in the mechanical and interfacial properties of the plasticized PLA films.
  • Water vapor transmission rates and antimicrobial activities were also evaluated.

Conclusions:

  • The AITCPS method is a viable technique for producing high-quality plasticized PLA films.
  • Glycerol acts as an effective plasticizer, improving key material properties for packaging and biomedical applications.
  • The developed PLA films show promise for sustainable food packaging and advanced biomedical devices.