PTFE, FEP thiab PFA yog cov fluoroplastics uas paub zoo tshaj plaws thiab siv ntau tshaj plaws. Tab sis lawv qhov sib txawv yog dab tsi? Tshawb nrhiav seb vim li cas fluoropolymers thiaj yog cov khoom siv tshwj xeeb, thiab cov fluoroplastic twg zoo tshaj plaws rau koj daim ntawv thov.
Cov yam ntxwv tshwj xeeb ntawm fluoroplastics
Cov fluoropolymers muaj ntau yam khoom tshwj xeeb uas ua rau lawv siv tau rau hauv kev kho mob, tsheb, hluav taws xob thiab kev siv hauv tsev, thiab lwm yam.
Cov tshuaj fluoroplastics muaj cov yam ntxwv hauv qab no:
1. Kub ua haujlwm siab heev
2. Tus cwj pwm tsis lo
3. Kev sib txhuam qis
4. Muaj zog heev rau cov tshuaj lom neeg thiab cov kuab tshuaj
5. Kev tiv thaiv hluav taws xob siab heev
Cov fluoroplastics sib txawv muaj qhov sib txawv me ntsis, suav nrog qhov kub ua haujlwm sib txawv, thiab tsim nyog rau ntau yam kev siv. Yog tias xaiv kom raug, cov fluoropolymers tuaj yeem muab cov txiaj ntsig zoo rau tus nqi thiab kev ua haujlwm.
Cov txiaj ntsig ntawm PTFE
PTFE, lossis Polytetrafluoroethylene, yog yawg ntawm txhua yam fluoroplastics. Tshawb pom los ntawm tus kws tshawb fawb Roy J. Plunkett hauv xyoo 1938, PTFE yog qhov txawv tshaj plaws fluoropolymer thiab ua rau pom kev ua tau zoo tshaj plaws hauv qhov kub, tshuaj lom neeg tsis kam thiab cov khoom tsis lo.
Ntxiv rau qhov txaus siab rau cov khoom tshwj xeeb ntawm fluoroplastics, PTFE sib txawv nws tus kheej los ntawm kev muaj cov txiaj ntsig hauv qab no:
1. Tus nqi zoo tshaj plaws: kev ua tau zoo piv
2. Kub ua haujlwm tas mus li ntawm + 260 ° C - Qhov no yog qhov kub ua haujlwm siab tshaj plaws rau txhua yam fluoroplastic
3. Tiv thaiv kom yuav luag txhua yam tshuaj lom neeg
4. Tsis nplaum heev (txawm tias tus gecko yuav plam rau ntawm PTFE)
5. Xim pob tshab
Qhov tsis zoo ntawm PTFE yog tias nws tsis yaj thaum raug cua sov thiab yog li ntawd nyuaj rau ua. Yuav tsum muaj cov txheej txheem tsis zoo li qub los pwm, extrude thiab weld cov fluoropolymer no.
Vim nws cov khoom tshwj xeeb, PTFE yog qhov zoo tagnrho rau kev siv hauv kev rwb thaiv hluav taws xob thiab kev tiv thaiv cov khoom siv hluav taws xob.
Peb yog ib lub chaw tsim khoom ntawmptfe yeeb nkab， yog tias koj muaj lus nug, koj tuaj yeem tiv tauj peb!
Cov txiaj ntsig ntawm FEP
FEP, los yog Fluoroethylenepropylene, yog PTFE uas yaj tau. FEP muaj cov yam ntxwv zoo ib yam li PTFE, tab sis nws qhov kub ua haujlwm qis dua +200 ° C. Txawm li cas los xij, FEP tuaj yeem ua tiav tau yooj yim dua thiab tuaj yeem yooj yim welded thiab rov ua dua rau hauv cov qauv nyuaj.
Ntxiv rau qhov muaj cov khoom tshwj xeeb ntawm fluoroplastics, FEP txaus siab rau cov txiaj ntsig no:
1. Kev vuam thiab rov ua dua tshiab
2. Kev ua haujlwm kub ntawm -200 ° C txog + 200 ° C - FEP tseem yoog tau ntawm qhov kub thiab txias cryogenic
3. Tag nrho cov tshuaj tiv thaiv thiab UV
4.Bio-sib xws
5. Xim meej
Ua tsaug rau cov txiaj ntsig no, FEP cua sov ntsws muaj qhov kub qis thiab tuaj yeem ntsws tau zoo dua li cov khoom siv kub rhiab heev yam tsis ntshai ua rau puas tsuaj. Yog li ntawd, FEP zoo tagnrho rau kev qhwv cov khoom siv hluav taws xob thiab cov cuab yeej siv.
Cov txiaj ntsig ntawm PFA
PFA, lossis Perfluoralkoxy, yog ib hom FEP uas kub heev. PFA muaj cov yam ntxwv zoo ib yam li FEP tab sis siv tau rau qhov kub ua haujlwm txog li +260°C thaum tseem yaj tau, ua tsaug rau qhov viscosity yaj qis dua PTFE.
Ntxiv rau qhov txaus siab rau cov khoom tshwj xeeb ntawm fluoropolymers, PFA sib txawv nws tus kheej los ntawm kev muaj cov txiaj ntsig hauv qab no:
Kub ua haujlwm tas mus li ntawm +260 ° C - Qhov no yog qhov kub ua haujlwm siab tshaj plaws rau txhua yam fluoroplastic
1. Kev vuam thiab rov ua dua tshiab
2. Kev tiv thaiv zoo permeability
3. Kev tiv thaiv tshuaj lom neeg zoo heev, txawm tias nyob rau qhov kub siab
4.Bio-sib xws
5. Muaj cov qib purity siab
6. Xim ntshiab
Qhov tsis zoo ntawm PFA yog tias nws kim dua PTFE thiab FEP.
PFA zoo tagnrho rau cov ntawv thov uas xav tau qib purity siab dua, tiv taus tshuaj lom neeg zoo heev thiab kub ua haujlwm siab. Cov fluoroplastic no yog siv dav hauv cov raj kho mob, cov khoom hloov pauv cua sov, cov pob tawb semi-conductor, twj tso kua mis thiab cov khoom sib txuas, thiab cov liner valve.
Ntawm no ntawmBesteflonPeb yog cov kws tshwj xeeb hauv kev xa cov kev daws teeb meem fluoropolymer tshiab rau koj cov ntawv thov kev siv tshuab. Nrhiav paub ntxiv txog pebCov Khoom Siv Fluoroplastic.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-30-2023