Nyob rau hauv lub ntiaj teb ntawm cov ntaub ntawv siab, UHMWPE thiab PTFE yog favory yog favored rau lawv cov khoom tshwj xeeb. Txawm hais tias nyob rau hauv kev lag luam lag luam, khoom siv kho mob, lossis aerospace, ob cov khoom no ua si ib lub luag haujlwm tsis meej. Txawm li cas los xij, hauv cov ntawv thov siv, yuav ua li cas xaiv cov khoom haum tshaj plaws yog feem ntau cov teeb meem tseem ceeb.UHMWPEMuaj npe rau nws qhov kev xav tsis thoob lub zog tiv taus thiab lub zog kub heev, thaum PTFE muaj kev xav txog nws cov tshuaj zoo heev thiab kev sib txhuam tsis tshua muaj kev sib txhuam. Yog li, cov khoom twg ua tau zoo dua nyob rau hauv cov kev pab sib txawv sib txawv? Kab lus no yuav delve rau cov ncauj lus kom ntxaws ntawm UHMWPE thiab PTFE los pab koj ua qhov kev xaiv tshaj plaws.
Dab tsi yog Uhmwpe?
UHMWPE, ultra-siab molecular hnyav polyethylene, yog hom ntawm polyethylene cov khoom nrog qhov hnyav heev. Qhov hnyav molecular ntawm cov khoom no yog ntau dua li cov pa polyethylene, feem ntau nyob rau hauv ntau lab, yog li muab cov kev tsis kam, thiab tshuaj lom neeg ua haujlwm.UHMWPEexcrels nyob rau hauv ntau ib puag ncig ib puag ncig, tshwj xeeb tshaj yog nyob rau hauv high-txhuam, hnyav-thauj cov ntawv thov hnyav, muab tshwj xeeb depability. Cov chaw thov cov khoom siv suav nrog cov siv tawv conveyor, kev cog lus kev kho mob, nkoj tiv thaiv, thiab ntau yam ntxiv. Nws cov kev hnav-resistant cov khoom ua rau UHMWPE nyob ib txoj haujlwm tseem ceeb hauv kev siv tshuab thiab hluav taws xob.
PTFE yog dab tsi?
PTFE, ppolytetrafluoroethylene, tseem hu ua Teflon, yog lub siab-ua tau yas yas tsim cov tshuaj fluorine atoms. Vim yog cov kev sib tw muaj zog ntawm cov tshuaj fluorine thiab cov roj ntsha atoms hauv nws cov lwg me me, nws cov molecular hnyav feem ntau yog li 1 mus rau 10 lab g / mol. PTFE muaj cov tshuaj kuj zoo heev, yuav luag muaj peev xwm tiv thaiv txhua cov acids, hauv paus, cov kuab tshuaj, thiab lwm yam tshuaj lom neeg. Tsis tas li ntawd, PTFE muaj qhov tsis tshua muaj kev sib txhuam zoo nkauj, thiab kub ua tsis tau zoo, feem ntau ruaj khov rau qhov kub thiab txias li 260 degree. Vim tias cov khoom no, PTFE tau siv dav hauv kev lag luam tshuaj, tshuab hluav taws xob, ua rau cov khoom siv hluav taws xob, thiab lwm thaj chaw xaiv rau ntau qhov chaw xav tau.
Lub zog tensile
UHMWPE lub tensile:
Kwv yees li 2.6-4. {{{{{{} Gpa kev ua tau zoo (sib txawv raws cov txheej txheem thiab kev ua tiav):
Txawm hais tias UHMWPE muaj qis tensile lub zog, nws txoj kev nruj yog qhov zoo heev, muaj peev xwm muaj qee qhov kev xav tau muaj ib theem ntawm lub zog thiab hnav tsis kam.
PTFE lub tensile lub zog:
Kwv yees li 10 - 30 mpa mpa mpa kom tsawg dua tab sis cov khoom ua tau zoo heev, muab kev ua tau zoo hauv ntau qhov chaw ua kom huv.
Hnav Tsis kam
UHMWPEUa kom tau tshwj xeeb zoo nyob rau hauv cov nqe lus ntawm kev coj tsis kam, ua tau zoo tshaj plaws hauv cov chaw siab loj. PTFE tus coj tsis kam yog tsis zoo; Txawm hais tias muaj kev sib txhuam qis qis, nws yog qhov dhau los hnav nyob rau hauv lub sij hawm ntev thiab tsis haum rau kev siv cov kev coj ua kom tsis kam. Ntxiv mus, UHMWPE tseem muaj kev tiv thaiv zoo heev, muaj peev xwm nrog nrog kev cuam tshuam hnyav heev uas tsis tau yooj yim tawg. Hauv kev sib piv, PTFE ua tsis tau zoo, tshwj xeeb tshaj yog thaum kub tsawg dua qhov nws dhau los ua ntau nrib pleb, yog li feem ntau yuav tawg raws li kev cuam tshuam hauv kev siv tshuab.
Uhmwpe hnavKev tiv
- Coj coefficient: kwv yees {0. {{{}}. 50 (tsawg heev, qhia tias tsawg dua kev sib txhuam thiab hnav)
- Hnav tus nqi: kwv yees li 0. 02 mm³t / n·
- Kev ua tau zoo: Uhmwepe muaj cov coj qis heev coefficient, ua rau nws muaj kev sib txhuam siab xws li bearings, bushings, thiab ntsaws ruaj ruaj.
PTFE hnav tsis kam
- Hnav coefficient: kwv yees li 0. {04 - 0. 10
- Hnav tus nqi: kwv yees li 0. 1 hli / n· m
- Kev Ua Tau Zoo: PTFE ua tau zoo nyob rau hauv cov kev sib txhuam tsis tshua muaj kev sib txhuam tsis haum tab sis tsis haum rau kev sib txhuam siab thiab muaj kev sib txhuam siab.
Kub-Kub Kuj
UHMWPE High-Kub Kuj
- Ntau tshaj kev ua haujlwm kub: kwv yees li 80 degree {1}}} degree (tuaj yeem tiv siab ntau zaus rau lub sijhawm luv luv nyob rau hauv lub sij hawm ntev)
- Cov cua sov thaum tshav kub kub deformation kub: kwv yees li 90 degree - 100 degree
PTFE siab kub-kub tsis kam
- Ntau tshaj kev ua haujlwm kub: kwv yees 260 degree (zoo heev-kub tsis kam, tuaj yeem tiv taus ntev lub siab qhov chaw kub)
- Thaum tshav kub kub deformation kub: kwv yees 327 degree
Tshuaj Kuj
Nyob rau hauv cov nqe lus ntawm cov tshuaj tsis kam, UHMWPE yog me ntsis qis rau PTFE. Uhmwepe tiv taus feem ntau cov tshuaj chemical tab sis muaj kev tsis zoo rau cov muaj zog acids thiab hauv paus. Uhmwepe tiv taus feem ntau cov acids, hauv paus, ntsev daws, thiab cov kuab tshuaj organic; Tshuaj lom neeg tsis kam tab sis txwv tawm tsam cov oxidants muaj zog.
PTFE yuav luag tawm tsam txhua cov tshuaj lom neeg, suav nrog cov muaj zog acids, hauv paus, cov kuab tshuaj, oxidants; Tshuaj lom neeg muaj zog tshaj plaws.
Cov Ntawv Thov
Cov ntawv thov ntawm UHMWPE
Vim nws cov kev cuam tshuam zoo heev, cuam tshuam kuj, thiab muaj zog ntau tensile, UHMWPE muaj zog, UHMWPE tau siv dav hauv cov teb hauv qab no:
{{0 {0}} i} Txhua yam thiab Engineoring: Nws yog siv rau kev tsim kho cov tawv me xws li lwm yam, tshwj xeeb, tshwj xeeb yog nyob ib puag ncig siab.
{{0 {0}} Tus me nyuam ua haujlwm thiab ua rau lub nkoj, cable sheathing, thiab anti-corrosion ua hauj lwm tsis kam thiab cuam tshuam kev cuam tshuam.
{{0 {0}} Kev Lag Luam Automotive: Nws ua haujlwm ua cov kab ntawv rau cov log thiab qhov muaj peev xwm nrog nrog cov khoom loj thiab txo cov hnav.
{{0 {0}} Cov khoom siv kis las: Nws yog dav siv hauv skis, skates, tiv thaiv cov iav, thiab lwm yam.
{{{0 {0}} Cov Khoom Siv Kho Mob: Siv rau cov pob qij txha ua ke thiab cov khoom cuav vim nws biocompatibility thiab hnav tsis kam.
Cov ntawv thov ntawm PTFE
Vim nws cov tshuaj zoo heev, muaj kev tiv thaiv kub, thiab cov kev sib txhuam tsawg, cov khoom siv hluav taws xob, khoom noj, thiab lwm cov teb tshwj xeeb:
--} Cov ntaub ntawv tsim kev lag luam: Nws yog dav siv hauv kev ua tau zoo hauv ib puag ncig nrog cov kua qaub loj heev uas muaj acid-puag.
{-- Kev Lag Luam Khoom Noj: Nws yog siv rau cov ntsaws ruaj ruaj, thiab conveyor siv nyob rau hauv cov khoom noj ua zaub mov noj kom ntseeg tau tias cov khoom noj tsis muaj kuab thaum kub.
{-- hluav taws xob kev lag luam: ua cov khoom siv insulating, thiab cov khoom siv hluav taws xob, tshwj xeeb yog ua tau zoo nyob rau hauv cov dej hluav taws xob siab.
{{0 {0}} Kev Lag Luam Automotive: Nws yog siv rau kev lag luam hauv tsheb, thiab lwm yam kev siv cov tshuaj, muab cov tshuaj tiv thaiv thiab kub ua tsis kam.
{-- Cov Khoom Siv Kho Mob: Nws yog siv los ua kev kho mob, thiab lwm yam.
Tus nqi
Los ntawm tus nqi zeem muag, kev tsim khoomNqi ntawm UHMWPEYog tus qauv qis, thiab nws yog qhov yooj yim rau kev txhaj tshuaj molding thiab extrusion txoj kev siv, muab cov nqi ntau dua, feem ntau haum rau kev lag luam loj.
Vim nws cov qauv molecular tshwj xeeb, yuav tsum tau txais cov nqi tshwj xeeb thiab cov cuab yeej siv thev naus laus zis ntau dua, ua kom haum rau cov ntawv thov high-kawg.
Kev Pabcuam Lub Neej
UHMWPE muaj lub zog tsis tshua muaj zog thiab cuam tshuam tsis kam, haum rau kev sib txhuam siab, yog li nws txoj kev pabcuam lub neej feem ntau yog ntev, mus txog 10 xyoo lossis ntau dua. Nyob rau hauv ib txwm kub thiab tsawg-kub ib puag ncig, UHMWPE ua tau heev stably.
PTFE muaj peev xwm ruaj khov nyob rau hauv qhov ntsuas kub thiab tshuaj ib puag ncig, muaj peev xwm tiv taus rau kub txog 260 degree. Txawm li cas los xij, nws cov kev coj tsis zoo yog tus neeg txom nyem, thiab nws lub neej tsis zoo, thiab nws lub neej muaj ib puag ncig siab, feem ntau xav tau hloov chaw.
UHMWPE VS PTFE
|
Ntiag tug |
UHMWPE |
Ptfe |
|
Molecular hnyav |
30, {000 - 9, 000}, {} g / mol |
10, {{000 - 10, {2}}}}, {3} g / mol |
|
Ceev |
{{{{0}}}. 93-0.98 g / cm³ |
2. {{13 - 2. 20 g / cm³ |
|
Lub zog tensile |
Kwv yees li 2.6-4. 0 gpa |
Kwv yees li 10 - 30 mpa |
|
Kev ua haujlwm tsis tu ncua |
{{0 {}} rau +80 degree |
{{0 {}} rau +260 degree |
|
Kev txhuam cev coefficient |
Kwv yees li 0. {03 - 0. 50 |
0.04 - 0.10 |
|
Kev Cuam Tshuam |
Zoo tshaj |
Tswj kav |
|
Tshuaj Kuj |
Tiv taus feem ntau cov tshuaj |
Tiv taus yuav luag txhua yam tshuaj |
|
Kev Rwb Hluav Taws Xob |
Zoo |
Zoo tshaj |
|
Tus nqi |
Qi dua |
Siab dua |
|
Kev Pabcuam Lub Neej |
Ntev dua nyob rau hauv kev ntxub ntxaug-tiv taus, kev cuam tshuam-resistant ib puag ncig, tshaj 10 xyoo nyob rau hauv ib txwm kub thiab tsawg kub |
Ntev dua nyob rau hauv cov chaw kub-ib puag ncig, ntau tshaj 15 xyoo hauv rwb thaiv tsev hluav taws xob |
Yuav ua li cas xaiv UHMWPE thiab PTFE cov ntaub ntawv?
Yog tias koj daim ntawv thov yuav tsum muaj lub siab hnav tsis kam, cuam tshuam tsis kam, thiab yog qhov tsim nyog rau ib puag ncig kub lossis qis-qhov chaw xaiv zoo tshaj plaws. Yog tias koj daim ntawv thov yuav tsum tau hnav tsis kam tshwm sim nyob rau hauv qhov kev kub kub, siab txoj kev txiav tawm, PTFE yog ntau haum.
Zhejiang Qianexilong Tshwj Xeeb Fibrer (QXL)Tsom rau tus R & D thiab ZUS TAU TEJ COV UHMWPE cov ntaub ntawv. Peb muab ntau UhmwpekhoomXws li cov fibers, cov ntaub, thiab cov khoom siv sib xyaw kom tau raws li qhov kev xav tau ntawm ntau yam kev lag luam. Yog tias koj muaj lus nug lossis muaj txiaj ntsig kev xav tau txog UHMWPE cov ntaub ntawv,Thov koj xav tiv tauj peb.Peb yuav muab lus qhia kev tshaj lij thiab kev daws teeb meem.