Impact of various binding resins and formulation on the characteristics of intumescent fire-retardant paints

• Main Authors: Chih-Shen Chuang, 莊智勝
• Other Authors: Chun-Han Ko
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/16045807270447599006

碩士 === 國立臺灣大學 === 森林學研究所 === 92 === The main purpose of wood treated with fire retardants is to improve safety in case of fire. The objective of this study is to discuss the effective fire-retardant property and coating performance of intumescent fire retardant paint in using different binding resin. The research methods are using different mixing ratios of different binding resins with acid precursor, carbon source and blowing agent to manufacture intumescent fire retardant paints. In order to know coating property of fire retardant, pyrolysis and heat of combustion, the intumescent fire retardant paint was evaluated by surface testing machine, thermalgravimetric analyzer and oxygen bomb calorimeter. The experimental results are summarized as follows: 1. In fire-retardant test, the best combination ratio of binding resin and carbon source is 15/35. The worst performance of four binding resins is the styrene monomer contained resin. The best two are EVA and VAC resin. 2. The best fire-retardant performance of four binding resins is the Vinyl acetate contained resin. 3. In terms of tdθ and tdθ1 values of CNS 6532, utilizing binding resin only is not enough to form the layer of char to be fire-retardant; therefore, the said resin must add extra carbon sources to form the said layer. 4. To reduce or change the heat of combustion in polymer materials will make protect material being uneasy to burn after firing.