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This paper presents one of the four industrial case studies developed within the EU project SUNSHINE, focusing on anti-stick coatings for aluminum molds used in bakery applications. Traditionally, polytetrafluoroethylene (PTFE) coatings have been favored for their non-stick performance. However, EU Reach regulations are imposing stricter limits on PTFE because of concerns about the release of harmful PFAS compounds. To address this issue, Laurentia Technologies has developed a sol-gel coating based on SiC@TiO2 core-shell nanostructure as alternative to PTFE and aimed at creating a Safe and Sustainable by Design (SSbD) solution. The SiC-based nanoparticles enhance thermal conductivity, reducing cooking times and temperatures while improving durability and anti-stick properties. Concerns about the use of TiO2 nanoparticles for food contact applications led to the development of a second SSbD alternative, SiC@SiO2, by replacing TiO2 with SiO2, and offering similar benefits. SiC@TiO2 and SiC@SiO2 coatings were rigorously tested for safety, functionality, and sustainability, covering their entire lifecycle from synthesis to end-of-life. Results showed that both alternatives perform well technically and have lower eco-toxicological impacts compared to PTFE. SiC@SiO2 demonstrated even lower environmental and economic impacts. Overall, these coatings offer promising, safer, and more sustainable replacements for PTFE.

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SSbD Industrial Case Study: Sustainable Alternatives to Anti-Stick Coatings for Aluminum Molds in Bakery Application

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • M. Blosi,
  • I. Zanoni,
  • A. Brigliadori,
  • S. Ortelli,
  • A. L. Costa,
  • M. Lopez Tendero,
  • C. Silvestre,
  • A. Serrano Lotina,
  • M. Banares,
  • A. Brunelli,
  • E. Badetti,
  • W. Peijnenburg,
  • R. Vandebriel,
  • C. Fito,
  • E. Barbero Colmenar,
  • A. Saccardo,
  • S. Doak,
  • H. Hong,
  • B. Nowack,
  • S. Devecchi,
  • A. Livieri,
  • L. Pizzol,
  • D. Hristozov

摘要

This paper presents one of the four industrial case studies developed within the EU project SUNSHINE, focusing on anti-stick coatings for aluminum molds used in bakery applications. Traditionally, polytetrafluoroethylene (PTFE) coatings have been favored for their non-stick performance. However, EU Reach regulations are imposing stricter limits on PTFE because of concerns about the release of harmful PFAS compounds. To address this issue, Laurentia Technologies has developed a sol-gel coating based on SiC@TiO2 core-shell nanostructure as alternative to PTFE and aimed at creating a Safe and Sustainable by Design (SSbD) solution. The SiC-based nanoparticles enhance thermal conductivity, reducing cooking times and temperatures while improving durability and anti-stick properties. Concerns about the use of TiO2 nanoparticles for food contact applications led to the development of a second SSbD alternative, SiC@SiO2, by replacing TiO2 with SiO2, and offering similar benefits. SiC@TiO2 and SiC@SiO2 coatings were rigorously tested for safety, functionality, and sustainability, covering their entire lifecycle from synthesis to end-of-life. Results showed that both alternatives perform well technically and have lower eco-toxicological impacts compared to PTFE. SiC@SiO2 demonstrated even lower environmental and economic impacts. Overall, these coatings offer promising, safer, and more sustainable replacements for PTFE.