Dab tsi yog qhov zoo ntawm H-BN nrog Lubricity zoo hauv daim ntawv thov?
Apr 08, 2022
Feem ntau hais lus, lubricating roj additives yog los ntawm kev hloov daim ntawv ntawm lub lubricating roj zaj duab xis adsorbed rau ntawm qhov chaw ntawm lub cev txav mus los, kom tsis txhob muaj kev sib cuag ntawm cov ntxhib deg micro-convex lub cev thaum lub nto ntawm cov kev sib txhuam khub txav ua ke, thiaj li. txhim kho lub lubrication thiab hnav tsis kam ntawm qhov chaw. Tam sim no, kev npaj cov roj nplua nyeem ntxiv los ntawm nano lubricating cov ntaub ntawv yog lub ntsiab txhais tau tias los txhim kho cov kev ua tau zoo ntawm antiwear lubrication.
Cov nanomaterials feem ntau ua si ob lub luag haujlwm hauv cov roj lubricating, ib qho yog "micro pob bearing effect"; Qhov thib ob yog cov nyhuv kho tus kheej. Lawv yuav nkag mus rau saum npoo ntawm cov kev sib txhuam ntawm cov khub thaum ua haujlwm, thiab hloov cov kev sib txhuam ntawm cov kev sib txhuam ntawm cov khub -- los ntawm kev sib txhuam ntawm cov zawv zawg mus rau zawv zawg thiab dov kev sib txhuam. Vim tias qhov sib txhuam coefficient ntawm dov kev sib txhuam yog ib qho kev txiav txim ntawm qhov loj me dua qhov kev sib txhuam zawv zawg, kev sib txhuam thiab hnav tuaj yeem txo.
Piv nrog rau cov ntaub ntawv tshaj tawm cov hlau nanoparticles (xws li tooj liab thiab hlau), H-BN muaj ntau yam zoo hauv cov roj nplua nyeem. Qhov no yog vim hais tias txawm hais tias tus nano additives muaj kev ua tau zoo heev, lawv noj sai sai hauv kev siv cov roj lubricating, thiab qhov cuam tshuam ntawm kev sib txhuam cov khub yuav maj mam poob, yog li txo cov kev pab cuam lub neej ntawm lubricating roj; Ntawm qhov tod tes, feem ntau ntawm cov hlau nanoparticles yog polyhedral nyob rau hauv cov duab, thiab cov atoms nyob rau saum npoo yog faib nyob rau hauv ib tug ntaiv duab, nrog rau kev ua haujlwm siab. Kev txhim kho ntawm cov roj lubricating yog ua tiav los ntawm kev kho tus kheej ntawm qhov chaw ntawm kev sib txhuam, thiab cov nyhuv "cov pob me me" tsis pom tseeb.
Raws li ib yam ntawm cov khoom zoo heev lubricant, cov txheej H-BN muaj qhov zoo ntawm cov kabmob muaj peev xwm, kev ruaj ntseg zoo ntawm qhov kub thiab txias thiab lub cev ruaj khov piv nrog cov kua lossis cov roj ib nrab. Nws tuaj yeem tawg rau hauv tshav kub resistant lubricating roj, dej los yog hnyav, txau rau ntawm qhov chaw sib txhuam, kom hnyav volatilized thiab tsim cov zaj duab xis qhuav; Nws kuj tseem tuaj yeem sau rau saum npoo ntawm resin, ceramic, hlau thiab lwm yam ntaub ntawv raws li cov ntaub ntawv kub-resistant thiab high-temperature self-lubricating cov ntaub ntawv.
