Farqiga u dhexeeya ETFE iyo PTFE qalab
ETFE (etylene-tetrafluoroethylene copolymer) iyo PTFE (polytetrafluoroethylene) waa laba fluoroplastics-waxqabad sare leh, oo si weyn ugu kala duwan qaab dhismeedka kiimikada, sifooyinka farsamada, sifooyinka farsamaynta, iyo codsiyada. ETFE, iyadoo la ilaalinayo PTFEIska caabbinta kiimikaad ee aad u fiican, waxay si weyn u wanaajisaa awoodda farsamada iyo wax qabadkeeda, laakiin iska caabinteeda heerkulku wax yar baa ka hooseeya. PTFEDhanka kale, waxay caan ku tahay caabbinta heerkulka aadka u sarreeya iyo xasilloonida kiimikada, laakiin way adag tahay in la farsameeyo. Kuwa soo socdaa waa isbarbardhig tafatiran oo labada dhinac laga eegayo dhinacyo badan.
Qaab dhismeedka Kiimikada iyo Guryaha Aasaasiga ah
- PTFE: Polymerized laga sameeyay monomers tetrafluoroethylene, qaabdhismeedkeeda molecular waxaa gabi ahaanba lagu soo koobay atamka fluorine. Waxay leedahay crystallinity sare iyo firfircoonitaan kiimikaad oo aad u xoog badan, taasoo kasbatay magaca "King of Plastics."
- ETFEKopolymer beddelka ah ee ethylene iyo tetrafluoroethylene. Gelitaanka unugyada ethylene ee silsiladda molecular waxay yaraynaysaa maadada fluorine, taasoo hagaajinaysa adkaanta iyo socodsiinta PTFE.
Isbarbardhigga Guryaha Makaanikada
- Xoog iyo Adag: ETFE waxay ku faantaa awoodda xajinta ilaa 50 MPa, laba jeer ka PTFE, iyo dhererka 100% -300%, oo muujinaya iska caabin aad u fiican; PTFE, dhanka kale, waa yara jajaban tahay laakiin waxay leedahay iska caabin jeexjeexeed oo sarreeya.
- Isku-dhafka is-burburinta: Labaduba waxay leeyihiin isugeyn aad u hooseeya, laakiin PTFE waxay bixisaa iska caabin heer sare ah, halka ETFE ay aad ugu habboon tahay qaybaha qaab-dhismeedka ee u baahan adkeyn sare.
Habaynta Waxqabadka
- ETFE:-dhalan kara (tusaale, extrusion, qaabaynta duritaanka), heerkulka qaabaynta hoose (240-270 ℃), oo ku haboon samaynta qaabab adag.
- PTFE: dhibic dhalaalaysa sare (327 ℃) iyo viscosity dhalaalid aad u sarreeya, samaynta dhalaalid-processable; sida caadiga ah waxaa lagu farsameeyaa iyadoo la isticmaalayo habsocod-sitering ama cadaadis, taasoo keentay kharashyada habaynta sare.
