High-Tg epoxy cure
Gives cured epoxies a high glass-transition temperature and stiffness for composites and laminates.
4,4'-Diaminodiphenyl sulfone (4,4'-DDS) is an aromatic amine used as a curing agent for high-temperature epoxy resins, in the synthesis of polysulfone amide resin and other polymers, and as an intermediate for acid azo and disperse dyes. SUNCHEM supplies DDS in 25 kg drums with a batch COA on every shipment.
4,4'-DDS is an aromatic diamine with a sulfone bridge. Cured with epoxy resins it gives high glass-transition temperature and stiffness, so it is a standard hardener in composite prepregs, adhesives and electrical laminates. It is also a monomer for polysulfone amide (Message d'intérêt public) fiber and other heat-resistant polymers, and an intermediate for acid azo and disperse dyes.
The same molecule is the API dapsone. This page covers industrial grade; pharmaceutical grade is made under GMP and is quoted separately.
Gives cured epoxies a high glass-transition temperature and stiffness for composites and laminates.
A monomer for polysulfone amide fiber and an intermediate for azo and disperse dyes.
We quote against your purity, melting point and particle size and send the batch COA for each lot.
| Paramètre | Valeur typique |
|---|---|
| Nom du produit | 4,4'-Diaminodiphenyl Sulfone |
| Synonymes | DDS; 4,4'-sulfonyldianiline; bis(4-aminophényle) sulfone |
| Numéro CAS. | 80-08-0 |
| Numéro CE. | 201-248-4 |
| Formule moléculaire | C₁₂H₁₂N₂O₂S |
| Poids moléculaire | 248.30 |
| Apparence | Poudre blanche à blanc cassé |
| Emballage | 25 kg fût |
Pureté, point de fusion, la taille des particules, moisture and ash limits depend on the producer grade and are stated on the TDS and batch COA; les limites de votre commande sont confirmées dans le devis et le contrat.
Where 4,4'-DDS is used, et que confirmer avant de changer d'approvisionnement.
A hardener for high-temperature epoxy systems in composite prepregs, structural adhesives and electrical laminates.
A monomer for polysulfone amide (Message d'intérêt public) fiber and other heat-resistant polymers.
An intermediate for acid azo and disperse dyes.
| Votre exigence | Ce qui fonctionne habituellement |
|---|---|
| Epoxy prepregs and adhesives | Specify purity and particle size (micronized if needed) |
| Polymer synthesis | Specify purity and color |
| Intermédiaires de teinture | Standard industrial grade |
| Pharmaceutical use (dapsone) | Not this grade — ask for a GMP source |
25 fûts de kg.
Keep drums closed in a cool, dry store away from light and oxidizers.
Epoxy curing, polymer or dye: purity and particle size follow from it.
Pureté, point de fusion, la taille des particules, moisture and ash.
For epoxy, particle size decides how evenly DDS disperses; test in your resin.
Analysez un échantillon dans votre propre processus et conservez le COA du lot approuvé comme référence pour les limites du contrat..
Tell us your resin system or product, la quantité et le port de destination. Ajoutez vos spécifications actuelles et nous établirons un devis en fonction de celles-ci.
| Information | Exemple |
|---|---|
| Application | Epoxy curing, PSA fiber, colorants |
| Spécification requise | Pureté, point de fusion, la taille des particules |
| Emballage | 25 fûts de kg |
| Quantité | Échantillon / commande à l'essai / volume annuel |
| Destination | Pays et port |
| Documents nécessaires | COA, FDS, DT, Déclaration REACH |
As a curing agent for high-temperature epoxy resins, a monomer for polysulfone amide resin and other polymers, and an intermediate for acid azo and disperse dyes.
Dans 25 fûts de kg.
It is the same molecule, but this page covers industrial grade. Pharmaceutical dapsone must come from a GMP producer and is quoted separately.
Pureté, point de fusion, la taille des particules, moisture and ash.