エポキシ・樹脂中間体

エポキシ中間体は、配合メーカーがエポキシ塗料、接着剤、複合材料へと反応・配合させるビルディングブロックです。 Bisphenol A (CAS 80-05-7) is the standard backbone reacted with epichlorohydrin to make general-purpose epoxy resins; bisphenol F (CAS 620-92-8) gives a lower-viscosity resin with improved chemical resistance. Reactive diluents are mono- or difunctional glycidyl ethers added to cut viscosity. Start from bisphenol A for cost and broad performance, and reach for bisphenol F where lower viscosity or chemical resistance is the priority.

Reactive diluents lower the viscosity of an epoxy system so it wets the substrate and accepts filler without added solvent. The catalog carries difunctional diluents (1,4-butanediol diglycidyl ether, neopentyl glycol diglycidyl ether) and monofunctional ones (phenyl glycidyl ether, C12-C14 alkyl glycidyl ether). The trade-off is direct: monofunctional diluents cut viscosity most per unit added but chain-stop the network, reducing crosslink density and lowering chemical and thermal resistance. Use difunctional diluents when retaining crosslink density matters, and cap monofunctional loadings.

Bisphenol F earns its place where bisphenol A resin is too viscous to handle at high solids, but it usually costs more, so the decision is a viscosity-versus-cost balance rather than a pure upgrade. One regulatory note: bisphenol A is a registered substance that receives hazard and regulatory attention in several jurisdictions, including restrictions in certain applications. Confirm the current regulatory status of bisphenol A for your application and jurisdiction before specifying it.

• 重防食塗料および工業用塗料向けのビスフェノールA型・ビスフェノールF型エポキシ樹脂の配合
• エポキシ接着剤、グラウト、構造用複合材料
• 反応性希釈剤によるハイソリッドおよび無溶剤エポキシ系の粘度低減
• 床材、タンクライニング、重防食（メンテナンス）塗装向けのエポキシ系
• ツーリング、注型、積層用エポキシ配合

• Bisphenol A u2014 PubChem (CID 6623)
• Bisphenol F u2014 PubChem
• Phenyl glycidyl ether u2014 PubChem
• 1,4-Butanediol diglycidyl ether u2014 PubChem