There are core differences in molecular structure, physical properties, reactivity and applicable scenarios between Heavy Cardanol and distilled cardanol.
- 1. Molecular composition: Distilled cardanol consists of single-molecule alkyl phenol with low polymer content; Heavy Cardanol contains massive dimeric, trimeric oligomeric cardanol and high-concentration cardol, leading to more active hydroxyl reaction sites.
- 2. Viscosity & volatility: Distilled cardanol is low-viscosity transparent liquid with slight volatile components; Heavy Cardanol is high-viscosity dark paste with volatile content below 0.3%, almost no loss under high-temperature processing.
- 3. Crosslink performance: Heavy Cardanol delivers faster curing speed and higher crosslink density when synthesizing phenolic resin, which greatly improves finished products' abrasion resistance and thermal stability.
- 4. Cost & application: Distilled cardanol is high-purity and high-cost, used for transparent epoxy curing agents and high-end wood coatings; Heavy Cardanol (cashew residol) is cost-effective, mainly applied in brake pad friction materials, bioasphalt modifiers, heavy-duty anti-rust primers and industrial foundry adhesives.For factories with mass production demand for high-temperature resistant materials, Heavy Cardanol is a more economical alternative to distilled cardanol.
