Can EPDM synthetic rubber hoses be used with deionized water containing 50% ethylene glycol?
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1. I heard that EPDM synthetic rubber contains carbon, which can poison ion exchange resins? Does the water turn black after a while? Is this thing real? What is the mechanism of poisoning? Is it ethylene glycol corroding the EPDM rubber or resin poisoning? 2. The supplier recommends PVDF pipes or FEP pipes, as well as stainless steel pipes. But it’s too expensive, and only hoses can be used in the system; apart from FEP hoses, can embedded UHMWPE hoses be used?
Ethylene propylene diene monomer (EPDM) is synthesized by copolymerizing ethylene, propylene, and a third monomer that is a non-conjugated diene; its main molecular chain is saturated, but the side chains contain a small number of unsaturated double bonds (resulting from the inclusion of the third monomer). Therefore, in addition to vulcanization with **substances**, it can also be vulcanized with sulfur just like NR, BR, and SBR, thereby enabling broader applications. Depending on the third monomer used, there are various types of EPDM. However, the vast majority of EPDM available on the market uses only two types of third monomers: ENB and DCPD. The ENB type has many different grades due to its fast vulcanization rate using sulfur, which results in higher production efficiency, while the DCPD type has only a few special grades available. UHMWPE ultra-high molecular weight polyethylene hose. FEP hose: Teflon hose. I hope some of these technical terms will be helpful for analysis! !
What is the relationship between ion exchange resin and ethylene glycol solution?