PPS is a high temperature fiber, up to 180°C, with excellent chemical resistance except for oxidizing agents such as NO2 and Oxygen itself. It has very good acid resistance and this, together with a good thermal resistance has led to wide acceptance in combustion processes.
The fiber is actually 30% sulfur by weight and it has a very high limiting oxygen index (34).
ACIDS – EXCELLENT
ALKALIS – EXCELLENT
OXIDIZING AGENTS – POOR
HYDROLYSIS – EXCELLENT
SOLVENTS – GOOD
Excellent hydrolysis resistance as it is not a condensation polymer – oxygen should be below 15% - used in power generation and incinerators.
MAXIMUM CONTINUOUS IN DRY CONDITIONS: 190°C / 374°F
MAXIMUM SURGE IN DRY CONDITIONS: 200°C / 392°F
The data shown and statements made in this document are representative properties and characteristics. Actual results may differ, depending on use. Lydall makes no warranty, express or implied, concerning results which may be obtained by using the product.
