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
• Resource Relation: Conference: 11. national SAMPE technical conference, Boston, MA, USA, Nov 1979
• Country of Publication: United States
• Language: English

Related Subjects

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