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Diacetone acrylamide(DAAM), CAS NO.2873-97-4

Source: Date:2019-01-01 16:02:00 Visits:

Product presentation

Product name:  Diacetone Acrylamide (DAAM)
CAS NO.: 2873-97-4 
Molecular Formula: C9H15NO2;

Appearance: Light yellow or White flake ;
Purity: ≥99.0% ;
Water: ≤0.3% ;
Acrylamide: ≤0.1%;
Melting point: 54.5-57 ℃;
Solubility in water: > 100g/100g;

Packing: 20KG/ Carton, or according to customer's requirement;

1 Diacetone acrylamide readily polymerizes and forms copolymers with a wide variety of comonomers;
2 Diacetone acrylamide reacts with ketone group of adipic acid dihydrazide at normal temperature;
3 Polydiacetone acrylamide has high water absorption;

Waterborne coatings(room temperature crosslinking);
Textile treatment;
Paper treatment;
Photosensitive resins;
Crosslinking agents;
Resin modifiers; 

Thanks to environmental regulations limiting volatile organic compounds (VOCs) and major improvements in the performance characteristics of the emulsion-based products, aqueous acrylic polymer emulsions are replacing solvent-based polymer systems. DAAM is widely used as cross-linker in waterborne acrylic emulsions.

The Superiority of the Diacetone Acrylamide (DAAM) and Adipic Acid Dihydrazide(ADH) Crosslinking System

---DAAM and ADH are easy and safe to use.
---Both intermediates are formaldehyde free.
---DAAM uniformly copolymerizes within acrylic copolymers, creating well-dispersed pendant ketone crosslinking sites.
---Wet acrylic emulsions based on DAAM with ADH in the aqueous phase, are initially non-reactive and afford emulsions with good long-term stability during shipping and storage in retail containers (i.e., “in-can” stability).
---After film coalescence, crosslinking becomes rapid at ambient temperatures, thanks to water evaporation in the drying process and a simultaneous reduction in pH arising from the loss of ammonia.
---Because crosslinking is post-coalescence, the resulting three-dimensional polymer network exhibits enhanced mechanical strength and durability as well as maximum film cohesive properties.
---Crosslinking with the keto-hydrazide chemistry enhances abrasion, scrub, stain, and blocking resistance; moisture and solvent resistance; and substrate adhesion.

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