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Functional Chemical DMPA (Dimethylolpropionic Acid)

Functional Chemical DMPA ( Dimethylolpropionic Acid )

Description

DMPA is a molecule that has both hydroxyl and carboxyl groups, unique and multi-functional resistance.

The free acid group can actively improve the water solubility or water dispersion properties of the resin after neutralizing the alkali. Introducing polar base.

To improve the adhesion of coatings and the dyeing properties of synthetic fibers; Increase the alkali solubility of the coating. Can be applied to the water

The DMPA is a tasteless, free-flowing, white crystalline solid.

Typical Properties

Type

Sodium salt of an amino functional sulfonic acid

Hydroxyl content, wt %

>24

Neutralizing equivalence, g/eq

<141

Ashes of Na2O, wt %

<0.03

Impurities, wt %

<0.5

Water insolubles, PPM

<50

Chroma

<250

Key Features

● Broad pH stability
● Special chain extender
● Sodium salt of an amino functional sulfonic acid
● Widely used in water based polyurethane (WPU) dispersions

Character

Value

Molecular weight

134.13

Acid value, mg KOH/g

410 -415

Melting point,° C.

170-180

Flash point

220° C

Decomposition temperature

230° C

Solvent solubility, g / 100 g 25° C


Water

11

Acetone

2.3

Ethanol

Insoluble

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