Optimal Impregnation Amounts of Flame Retardant for Semi-combustible Hinoki Cypress (Chamaecyparis obtusa) Plywood

  • Eun Suk Jang*
  • , Yasuyo Anno
  • , Woo Chan Park
  • , Hee Jun Park
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

This study aimed to determine the amount of flame retardant for semi-combustible performance required to comply with the Ministry of Land, Infrastructure, and Transport Notice 2023-24 for hinoki cypress (Chamaecyparis obtusa) plywood, which is commonly used as a building material. A cone calorimeter was used to observe the changes in the total heat release (THR) depending on the solid content of the flame-retardant impregnation (SCFI). The relationship between the SCFI and THR was expressed as an exponential function. The solid content of the flame-retardant impregnation required to meet the prescribed standard of 8.0 MJ/m² was 108 kg/m³ (semi-combustible performance standards) for hinoki cypress plywood.

Original languageEnglish
Pages (from-to)9595-9605
Number of pages11
JournalBioResources
Volume20
Issue number4
DOIs
StatePublished - 2025

Keywords

  • Building material
  • Flame retardant
  • Hinoki cypress plywood
  • Impregnation
  • Optimal impregnation amount
  • Semi-combustible performance

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