skip to main content

Title: Tensile properties of epoxy encapsulants

Tensile properties were measured for nineteen different formulations of epoxy encapsulating materials. Formulations were of different combinations of two neat resins (Epon 828 and Epon 826, with and without CTBN modification), three fillers (ALOX, GNM and mica) and four hardeners (Z, DEA, DETDA-SA and ANH-2). Five of the formulations were tested at -55, -20, 20 and 60C, one formulation at -55, 20 and 71C; and the remaining formulations at 20C. Complete stress-strain curves are presented along with tables of tensile strength, initial modulus and Poisson's ratio. The stress-strain responses are nonlinear and are temperature dependent. The reported data provide information for comparing the mechanical properties of encapsulants containing the suspected carcinogen Shell Z with the properties of encapsulants containing noncarcinogenic hardeners. Also, calculated shear moduli, based on measured tensile moduli and Poisson's ratio, are in very good agreement with reported shear moduli from experimental torsional pendulum tests.
Authors:
; ;
Publication Date:
OSTI Identifier:
6737019
Report Number(s):
SAND-92-2768
ON: DE93008494
DOE Contract Number:
AC04-76DP00789
Resource Type:
Technical Report
Research Org:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; EPOXIDES; ELASTICITY; TENSILE PROPERTIES; RESINS; ENCAPSULATION; EXPERIMENTAL DATA; FILLERS; POISSON RATIO; SHEAR PROPERTIES; DATA; INFORMATION; MECHANICAL PROPERTIES; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS 360603* -- Materials-- Properties