MECHANICAL PROPERTIES OF HIGHLY FILLED ELASTOMERS VIII. RUPTURE PROPERTIES OF THE COMPOSITE SYSTEM POLYURETHANE RUBBER-SODIUM CHLORIDE AT ROOM TEMPERATURE
Abstract
A large number of composites were prepared with sodium chloride as a filler and polyurethane rubber as a binder. Two filler sizes were used, viz a coarse filler fraction of 200 - 300 micrometers and a fine filler fraction of 30 -40 micrometers. Furthermore a bimodal filler was prepared by mixing those fractions in ratios, which were varied between 0, 1 and 0, 9 in steps of 0, 1. Composites were prepared which contained between 1 vol % and 58 vol % of coarse filler, between 1 vol % and 45 vol % of fine filler, and between 40 vol % and 70 vol % of bimodal filler of different compositions. Those materials were investigated in tensile creep under dead loads at 21 C and 65 % R.H. The creep behaviour (dewetting transition) was measured, the relation between tensile strength and rupture time was determined, and rupture surfaces were studied by microscope and microscan.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1969
- Accession Number
- AD0700700
Entities
People
- Friedrich R. Schwarzl
- Hendricus W. Bree