2,5 dimethyl 2,5 hexane diamine: a promising new curing agent for epoxy resins

Conference · Wed May 30 00:00:00 EDT 1979

OSTI ID:5971696

Rinde, J A; Chiu, I; Mones, E T; Newey, H A

We have discovered a new curing agent for epoxy resins that has both interesting and useful properties. The compound, 2,5 dimethyl 2,5 hexane diamine (DMHDA) is a sterically hindered primary aliphatic amine that, as a curing agent for DGEBA epoxy resins, has the following desirable characteristics: (a) at room temperature it forms a stable B-stage resin; (b) it is a good wet-filament winding resin having a low viscosity (0.5 Pa.s) and a long gel time (21 h for a 30-g mass); (c) the cured resin properties are good - for example, the tensile strength is 86 MPa (12,500 psi), and the glass transition temperature is greater than 140/sup 0/C when cured at 130/sup 0/C.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5971696
• Report Number(s): UCRL-82155; CONF-791116-2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AMINES
CURING
EPOXIDES
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RESINS
TENSILE PROPERTIES
VISCOSITY