Dimethylolpropionic Acid (DMPA)
Molecular formula C5H10O4
Molecular weight 134.13
Cas No 4767-03-7
Properties odorless, free flow white crystal
Melting point 185-190¡æ; Density£º0.84.
Technical indexes
Assay (%) ¡Ý99 Moisture (%)¡Ü0.2 Ash (%)¡Ü0.03 Residual aldehyde (%)¡Ü0.01¡¡Hydroxyl value (mgKOH/g) 810-860 Fe (PPM)¡Ü5 Na (PPM)¡Ü30 K (PPM)¡Ü10
P(as phosphate) (PPM)¡Ü10 Si(as silicate) (PPM)¡Ü1 Sulfate ion (PPM)¡Ü10
Solubility test in acetone-triethylamine clear
Uses £ºIt can be used in water soluble PU system, water soluble alkyd resin, polyester resin, epoxy ester coating, PU elastomer and powder coating. Now, it is mainly used in coating of water soluble PU system, adhesive and leather coating agent
Specification£º DMPA-¢ñ (coarse) size 0.250-0.425mm ¡Ý90%, DMPA-¢ò (refined) size 0.250-0.425mm ¡Ü30% 0.150-0.250mm ¡Ý50%
Packing£º25Kg in paper-plastic laminated bag and cardboard. or following your¡¡demands.
Storage£ºsealed, kept in cool and dry place. If piled, it should be laid on wood sheet with thickness of 10cm) and the distance from wall is 50cm.
25Kg in paper-plastic laminated bag and cardboard.
Dimethylolbutanoie acid (DMBA)
Molecular formula C6H12O4
Molecular weight 148.16
Cas No. 10097-02-6
Properties
Assay (%)¡Ý99 Moisture (%)¡Ü0.2 Ash (%)¡Ü0.03 Residual aldehyde (%)¡Ü0.01 Hydroxyl value (mgKOH/g) 728-782 Fe (PPM)¡Ü5 Na (PPM)¡Ü150 K (PPM)¡Ü10
P (as phosphate) (PPM)¡Ü10 Si (as silicate) (PPM)¡Ü1 Sulfate ion (PPM)¡Ü10
Solubility test in acetone-triethylamine clear
UsesIt is a good crosslinking agent and hydrophilic agent, or used to produce water-based high molecule system, is widely used in water soluble PU system, polyester resin and epoxy ester. With good solubility, it also is widely used in coating of water soluble PU system, adhesive and leather coating agent. It will become a new kind of environment-friendly substitute of 2,2-Bis(hydroxymethyl)propionic acid.
SpecificationDMBA-¢ñ size 0.250-0.425mm ¡Ý90%
Packing25Kg in Al-foil bag. or following your demands
Storage sealed, kept in cool and dry place. If piled, it should be laid on wood sheet with thickness of 10cm) and the distance from wall is 50cm.
25Kg in Al-foil bag.
¡°Spandyer96¡± is a newly-developed interface modifier£¬it can replace some ethylenediamine in the Spandex synthetic reaction.it can enhance the dyeing power of spandex£¬promote the affinity of synthetic leather with acid dyes and direct dyes . Using the traditional application can substantially reduce synthetic leather strength£¬but spandyer96 can not affect the strength of synthetic leather.