Kev Tshawb Nrhiav thiab Kev Txhim Kho thiab Kev Siv Tshiab Nanocomposites rau Rail Pads
- Dab tsi yog qhov tseem ceeb ntawm nanocomposites thov rau cov ntaub qhwv li cas?
Nanocomposites disperse nanoscale particles (such as nanosilicon dioxide and carbon nanotubes) in a polymer matrix, significantly improving pad performance through the nano effect. Nanosilicon dioxide can increase the elastic modulus of the pad by 20% - 30%, enhancing the support stiffness for the rails; Qhov sib ntxiv ntawm cov pa roj carbon nanotubes nce cov hnav tsis kam ntawm cov kab ke, txhim kho cov kev pab cuam ntawm lub neej {}} Ib qho ntxiv, nanocomposites tuaj yeem tsim nrog cov khoom ua haujlwm raws li kev xav tau, xws li kev ntxiv cov nanoparticles nanoparticles kom ua tiav qhov kev tawm tsam ntawm lub ncoo {{8}
- Yuav ua li cas daws cov teeb meem ntawm dispersing nanoparticles hauv matrix?
Siv cov txheej txheem uas ua ke nrog kev faib tawm lub cev nrog kev kho cov tshuaj lom neeg lub cev siv cov khoom siv ntau zaus, siv cov khoom siv ultrasonic high}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} nanoscale . Kev hloov kho tshuaj lom neeg yog los txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau ua kom muaj kev sib txuas lus, yog li cov ntaub ntawv sib dhos, kom ua tiav cov txheej txheem kev sib txuam, cov kev rho tawm ntawm nanoparticles hauv lub Matrix tuaj yeem ncav cuag ntau dua 95%, muab tag nrho cov ua si rau cov nyhuv ua tiav ntawm nanomaterials {}}
- Yuav ua li cas yog kev sim ntsuas ntawm nanocomposite pads txawv ntawm cov pa ncej tsoos?
In addition to conventional tests such as compression strength and compression permanent deformation, nanocomposite pads need to focus on the dispersion and interface bonding strength of nanoparticles. Transmission electron microscopy (TEM) is used to observe the distribution state of nanoparticles in the matrix to evaluate the dispersion uniformity; Nanoindentation thev naus laus zis yog siv los ntsuas cov cuab yeej siv ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm ntawm kev ua haujlwm siab thiab damping kev ua haujlwm ntawm kev ntsuas kev ua haujlwm siab Kev ntsuam xyuas, kev sim ntsuas ntawm nano-daim ntaub pads tsom xam ntau dua rau ntawm microstructure thiab high-zaus tshuab ua kom tau txais kev nkag siab zoo rau kev ntsuas xyuas lawv qhov tshwj xeeb {}
- Yuav ua li cas nano-composite pads ua nyob rau hauv ib puag ncig heev?
Nyob rau hauv qhov siab-qhov chaw ib puag ncig (saum toj 80 degree), cov ntaub qhwv tsis zoo yog 60% Cov nqi tswj hwm ntawm 85%, tiv thaiv cov ntaub ntawm nrib pleb, kev nqus dej hauv cov kab ke, thiab cov kev xav tau ntawm cov kab ke ntawm kev tsheb ciav hlau hauv cov cheeb tsam sib txawv.
- Kev sib tw ntawm nano-composite pads ntsej muag?
Technically, tus nqi ntawm kev npaj nanomaterials yog siab heev tus nqi ntawm cov roj hmab tsim khoom, nws yog qhov tsim nyog tswj tau qhov ntsuas ntawm nanoparticles, uas yog nquag rau cov khoom lag luam Flu aus {4 4}} Nyob rau hauv kev ua lag luam, uas muaj kev tsis txaus siab rau kev txhawb nqa cov khoom lag luam tshiab, thiab nws yog qhov tsim nyog los txhawb kev tsim kho kom txaus siab los ntawm thev naus laus zis innovation los txo tus nqi, tsim cov kev ua tau zoo ntev, thiab txhim kho cov qauv {{}}