In the 80s and 90s, my days in hose, bladders and autoclaves, we also used nylon. Three cures was max. We also used cotton but, found it adhered to the bladders. Perhaps the thread count was not high enough. We also used aramid wraps but, $ always prevented us from continuing.
We work with a company in China that is using a internal/tilt mixer. We will be mixing a mineral (silica) filled NR compound and will be adding silane to it. We believe we will need to mix a masterbatch first and bring the mixing temperature up to and dump at 150C.
Our supplier feels his...
Of the cure systems listed below, which would likely yield the best (lowest) compression set in a Natural Rubber compound? Also, recommendations on a better one would be appreciated.
TMTM 0.5 phr
Sulfur 0.6 phr
TBBS 1.3 phr
DTDM 0.8 phr
or
CBS 1.75 phr
TMTD 0.3 phr...
What immersion fluid used in for the test described in MIL-DTL-26842? Are there multiple fluids? Is there other information required to determine the fuild to be immersed in as well as the time and temperature?
Thanks,
Pete
