What do reactive diluents do in an epoxy formulation?

Reactive diluents are glycidyl ethers added to lower the viscosity of an epoxy system so it wets the substrate and accepts filler without added solvent. Difunctional diluents (e.g. 1,4-butanediol diglycidyl ether) preserve crosslink density; monofunctional diluents (e.g. phenyl glycidyl ether) cut viscosity more per unit but reduce crosslink density and chemical resistance.

Epoxid- & Harz-Zwischenprodukte

Q: Does RawSource supply finished epoxy resins as well as the intermediates?

Yes. Alongside the bisphenol building blocks and reactive diluents, the catalog includes bisphenol A diglycidyl ether (DGEBA), bisphenol F diglycidyl ether (DGEBF), and cresol novolac epoxy resins. These are the cured-resin step built from the intermediates on this page.

Überblick

Epoxid-Zwischenprodukte sind die Bausteine, die Formulierer zu Epoxidbeschichtungen, -klebstoffen und -verbundwerkstoffen umsetzen und abmischen. 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.

Empfohlene Chemikalien

2 Materialien

Bisphenol A

CAS 80-05-7

Baustein für Epoxidharze (Bisphenol) Schnellansicht

Bisphenol F

CAS 620-92-8

Niedrigviskoser Epoxidharz-Baustein Schnellansicht

Wo es eingesetzt wird

Formulierung von Bisphenol-A- und Bisphenol-F-Epoxidharzen für Korrosionsschutz- und Industriebeschichtungen
Epoxidklebstoffe, Vergussmörtel und Strukturverbundwerkstoffe
Viskositätsreduzierung von High-Solid- und lösemittelfreien Epoxidsystemen mit Reaktivverdünnern
Epoxidsysteme für Bodenbeläge, Tankauskleidungen und Instandhaltungsbeschichtungen
Epoxidformulierungen für Formenbau, Gießen und Laminieren

Häufig gestellte Fragen

Was ist der Unterschied zwischen bisphenol A- und bisphenol F-Epoxidharzen?

Bisphenol A (CAS 80-05-7) makes the standard general-purpose epoxy backbone; bisphenol F (CAS 620-92-8) yields a lower-viscosity resin with improved chemical resistance. Bisphenol F is easier to formulate at high solids or solventless but typically costs more, so the choice balances viscosity and chemical resistance against cost.

Was leisten Reaktivverdünner in einer Epoxidformulierung?

Reaktivverdünner sind Glycidylether, die zugesetzt werden, um die Viskosität eines Epoxidsystems zu senken, damit es das Substrat benetzt und Füllstoff aufnimmt, ohne Lösemittelzusatz. Difunktionelle Verdünner (z. B. 1,4-butanediol diglycidyl ether) erhalten die Vernetzungsdichte; monofunktionelle Verdünner (z. B. phenyl glycidyl ether) senken die Viskosität pro Einheit stärker, verringern aber Vernetzungsdichte und Chemikalienbeständigkeit.

Ist Bisphenol A reguliert?

Bisphenol A is a registered substance that receives hazard and regulatory attention in several jurisdictions, including restrictions in certain applications. RawSource does not provide regulatory or compliance advice; confirm the current regulatory status of bisphenol A for your specific application and jurisdiction before specifying it.

Liefert RawSource neben den Zwischenprodukten auch fertige Epoxidharze?

Ja. Neben den Bisphenol-Bausteinen und Reaktivverdünnern umfasst der Katalog bisphenol A diglycidyl ether (DGEBA), bisphenol F diglycidyl ether (DGEBF) und Kresol-Novolak-Epoxidharze. Diese stellen die Stufe des ausgehärteten Harzes dar, die aus den Zwischenprodukten auf dieser Seite aufgebaut wird.

Quellen

Haftungsausschluss. Information on this page is provided for general reference and compiled from authoritative public sources (e.g. PubChem/ECHA). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot you purchase governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim. Always consult the current Safety Data Sheet (SDS) before handling, and confirm regulatory status, classification, and suitability for your application and jurisdiction.

Epoxid- & Harz-Zwischenprodukte

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