Umahluko phakathi kwe-ETFE kunye PTFE izinto
ETFE (ethylene-tetrafluoroethylene copolymer) kunye PTFE (i-polytetrafluoroethylene) zimbini ze-fluoroplastics eziphezulu zokusebenza, ezihluke kakhulu kwisakhiwo sekhemikhali, iimpawu zomatshini, iimpawu zokucubungula, kunye nokusetyenziswa. ETFE, ngelixa ugcina PTFE's egqwesileyo ukumelana imichiza, ngokubonakalayo kuphucula amandla oomatshini kunye nokusebenza processing, kodwa ukumelana ubushushu bayo ngaphantsi kancinane. PTFE, kwelinye icala, idume ngokuxhathisa ubushushu obuphezulu kakhulu kunye nokuzinza kweekhemikhali, kodwa kunzima kakhulu ukuyiqhuba. Oku kulandelayo luthelekiso oluneenkcukacha lwezi zimbini kwiimbono ezininzi.
Ubume beMichiza kunye neePropati eziSisiseko
- PTFE: I-polymerized ukusuka kwi-tetrafluoroethylene monomers, isakhiwo sayo se-molecular sifakwe ngokupheleleyo ngama-athomu e-fluorine. Inobukhazikhazi obuphezulu kunye nokungangeni kweekhemikhali ezinamandla kakhulu, ifumana iwonga elithi "uKumkani wePlastiki."
- ETFE: I-copolymer etshintshanayo ye-ethylene kunye ne-tetrafluoroethylene. Ukuqaliswa kweeyunithi ze-ethylene kwikhonkco le-molecular kunciphisa umxholo we-fluorine, ngaloo ndlela kuphuculwe ukuqina kunye nokuqhubekeka, kodwa ukuchasana kwayo kweekhemikhali kungaphantsi kancinci PTFE.
Uthelekiso lweePropati zoomatshini
- Amandla kunye nokuqina: I-ETFE iqhayisa amandla okuqina ukuya kuthi ga kwi-50 MPa, kabini leyo PTFE, kunye nobude be-100% -300%, ebonisa ukuchasana kwempembelelo ebalaseleyo; PTFE, kwelinye icala, i-brittle kodwa inokumelana nokukrala okuphezulu.
- I-Coefficient of Friction: Zombini zinee-coefficients eziphantsi kakhulu zokukhuhlana, kodwa PTFE inikeza ukuxhathisa okungaphezulu kokunxiba, ngelixa i-ETFE ifaneleke ngakumbi kumacandelo esakhiwo afuna ubunzima obuphezulu.
Ukuqhubekiswa koMsebenzi
- I-ETFE: I-Melt-processable (umzekelo, i-extrusion, i-injection molding), kunye neqondo lokushisa eliphantsi lokubumba (240-270 ℃), lilungele ukuvelisa iimilo ezinzima.
- PTFE: Indawo yokunyibilika ephezulu (327℃) kunye ne-viscosity ephezulu kakhulu yokunyibilika, eyenza ukuba inyibilike-iqhubekeke; ngokuqhelekileyo icutshungulwe kusetyenziswa iinkqubo ze-sintering okanye ezicinezelayo, ezikhokelela kwiindleko eziphezulu zokusebenza.
