Lub UHMWPE phaj txais cov Ziegler hom high-efficiency catalyst low-pressure synthesis txoj kev thiab yog tswj los ntawm 1.5 mus rau 3 lab raws li xav tau.Muab rau hauv tus account lub thermal degradation ntawm molecules thaum lub sij hawm ua, high-density polyethylene nrog ib tug viscosity nruab nrab molecular ntau dua 1.7 lab tuaj yeem ua tiav rau hauv ntau yam khoom kom muaj kev ua tau zoo dua.
Lub UHMWPE phaj txais cov Ziegler hom high-efficiency catalyst low-pressure synthesis method, thiab yog tswj los ntawm 1.5 mus rau 3 lab raws li xav tau.Muab rau hauv tus account lub thermal degradation ntawm molecules thaum lub sij hawm ua, high-density polyethylene nrog ib tug viscosity nruab nrab molecular ntau dua 1.7 lab tuaj yeem ua tiav rau hauv ntau yam khoom kom muaj kev ua tau zoo dua.
1. High hnav tsis kam: UHMWPE phaj tau zoo dua hnav tsis kam ntawm tag nrho cov yas engineering tam sim no thiab yog qhov muag pom ntau dua.Qhov siab dua cov molecular, cov khoom hnav-tiv taus ntau dua, txawm tias ntau dua li cov ntaub ntawv hlau (xws li carbon steel, stainless hlau, bronze, thiab lwm yam).Piv txwv li, UHMW-PE kav dej muaj kev pab cuam lub neej ntawm 4-6 lub sij hawm ntawm cov kav hlau steel nyob rau hauv cov kev mob ntawm corrosion muaj zog thiab siab hnav, thiab nce kev sib kis efficiency los ntawm 20%.Nws ua kom pom qhov zoo tshaj plaws ntawm "kev txuag hluav taws xob, kev tiv thaiv ib puag ncig, kev lag luam thiab kev ua haujlwm siab".
2. Corrosion kuj: Nws tsis yog corroded nyob rau hauv lye thiab yuav siv tau nyob rau hauv concentrated hydrochloric acid ntawm 80 ° C.Nws muaj kev ua haujlwm ruaj khov hauv 75% concentrated sulfuric acid thiab 20% nitric acid.Nws tseem ruaj khov rau seawater thiab kua detergents.
3. Tsis tshua muaj coefficient ntawm kev sib txhuam: Cov coefficient ntawm kev sib txhuam zoo li qub yog 0.07, thiab nws muaj qhov zoo ntawm nws tus kheej lubricating zog.Nws yog ib qho zoo tagnrho bearing, bushing, zawv zawg thaiv thiab hauv ob sab phlu khoom.Siv UHMWPE phaj raws li kev sib txhuam ntawm cov cuab yeej siv tsis tau tsuas yog ua kom lub neej hnav-tiv taus, tab sis kuj tau txais kev txuag hluav taws xob.
4. Impact resistance: Qhov cuam tshuam tsis kam yog thawj ntawm cov yas.Txawm hais tias nws yog qhov muaj zog sab nraud los yog kev hloov pauv hauv lub siab, nws nyuaj rau tawg.Nws lub zog cuam tshuam yog 10 npaug ntawm nylon 66, 20 npaug ntawm polyvinyl chloride, thiab 8 npaug ntawm polytetrafluoroethylene.Tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias ib puag ncig, nws qhov cuam tshuam lub zog nce mus txog tus nqi siab dua, thiab nws qhov yooj yim tuaj yeem muab kev thauj mus los tsis zoo, kev lav zoo.
Post lub sij hawm: Apr-20-2019