Bio-based candelilla wax nanoemulsion for moisture-repellent coatings
Introducing a bio-based candelilla wax nanoemulsion designed to form thin, moisture-repellent films. This innovative solution offers improved stability, adhesion, and optical transparency for cosmetic and food applications, aligning with sustainability goals.
Overview
The bio-based candelilla wax nanoemulsion represents a significant advancement in developing moisture-repellent thin films. Derived from candelilla wax, a natural hydrophobic biopolymer, this eco-friendly solution aligns with the circular bioeconomy principles. Candelilla wax, abundant and sustainable, is used in various industries such as cosmetics, pharmaceuticals, and food glazing. The nanoemulsion technology provides superior stability, homogeneity, adhesion, and transparency compared to traditional emulsions, offering a sustainable alternative to petroleum-derived waxes.
Technical specifications
The formulation of this nanoemulsion involves melting refined candelilla wax into an aqueous phase with a bio-based surfactant system. Prioritizing biodegradable, food-grade surfactants ensures regulatory compliance. Key characterization techniques include:
- Dynamic Light Scattering (DLS): Determines droplet size and polydispersity index.
- Zeta Potential Analysis: Evaluates colloidal stability.
- Differential Scanning Calorimetry (DSC): Assesses thermal transitions and crystallinity.
- Fourier Transform Infrared Spectroscopy (FTIR): Confirms structural integrity.
- Scanning Electron Microscopy (SEM): Analyzes film morphology and surface uniformity.
Barrier properties are measured by Water Vapor Transmission Rate (WVTR), static water contact angle, and moisture sorption isotherms. Application methods include spray and dip coating.
Technology readiness level
This technology is currently at Technology Readiness Level 6, having been validated in relevant environments. Future validation steps include refining raw material preparation, nanoemulsification processes, and characterization techniques to ensure optimal performance.
About Universidad Autónoma de Coahuila
Universidad Autónoma de Coahuila is a comprehensive public university serving the state through three academic units, combining teaching, research, and outreach across a statewide footprint. Industry collaboration is coordinated through a dedicated knowledge‑transfer office and applied research centers that provide contract services and access to specialized facilities. Integration with university hospitals in Torreón and Saltillo enables clinical partnerships and supports translational work. A formal professional‑practice program links students and faculty with companies for internships and problem‑solving engagements. Research is backed by competitive national and state funding, including CONAHCYT programs and Coahuila’s science council, alongside industry‑sponsored projects. Located in the Saltillo–Ramos Arizpe corridor, partners tap into one of Mexico’s densest automotive ecosystems.
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