tag:blogger.com,1999:blog-8964719845369935777.post3611101928826225022..comments2024-03-29T09:05:29.819-04:00Comments on Chemjobber: What is breaking down in Philips CPAP machines? Chemjobberhttp://www.blogger.com/profile/15932113680515602275noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8964719845369935777.post-49841903013051895162021-08-19T09:08:13.261-04:002021-08-19T09:08:13.261-04:00It's really common for polymers to oxidatively...It's really common for polymers to oxidatively degrade as they age. You've probably seen old lab hoses, bike tires, shoe soles, or other rubber and plastic objects crack and crumble.<br /><br />Small ozone generator machines have become very popular for cleaning the face masks and hoses of CPAP machines in the last few years, eliminating the need for manual washing with soapy water. I suspect the ozone may be contributing to the breakdown of the polymer. I once worked at a place where we had to have ServPro come in with their ozone generator machines to get rid of the odor after we had an experiment go wrong and smoke out the lab, and they warned us that the ozone may damage rubber and plastic materials in the building.KTnoreply@blogger.comtag:blogger.com,1999:blog-8964719845369935777.post-88866242214785521712021-08-19T01:52:48.565-04:002021-08-19T01:52:48.565-04:00I've seen polyurethane foam breakdown in old e...I've seen polyurethane foam breakdown in old electronics equipment and packing cases, usually into a slimy sort of mush, so I don't think this is a new problem. It degrades to basically having zero elasticty, so you can compress it into a paste. I should actually go find some in my mountains of junks and run it for a GCMS scan in the lab, now I'm curious...Peptoidnoreply@blogger.com