Cov ntaub ntawv hloov pauv theem (PCMs) tuaj yeem muab faib ua ntau pawg raws li lawv cov tshuaj lom neeg muaj pes tsawg leeg thiab cov yam ntxwv hloov theem, txhua qhov tshwj xeeb ntawm daim ntawv thov zoo thiab cov kev txwv.Cov ntaub ntawv no feem ntau suav nrog cov organic PCMs, inorganic PCMs, biobased PCMs, thiab cov PCMs sib xyaw.Hauv qab no yog cov lus qhia ntxaws ntxaws txog cov yam ntxwv ntawm txhua hom kev hloov pauv cov khoom siv:
1. Organic theem hloov cov ntaub ntawv
Organic theem hloov cov ntaub ntawv feem ntau suav nrog ob hom: paraffin thiab fatty acids.
- Paraffin:
-Features: High chemical stability, zoo reusability, thiab yooj yim hloov ntawm melting point los ntawm kev hloov qhov ntev ntawm molecular chains.
-Disadvantage: Lub thermal conductivity yog tsawg, thiab tej zaum yuav tsim nyog los ntxiv thermal conductive cov ntaub ntawv los txhim kho thermal teb ceev.
-Fatty acids:
-Features: Nws muaj ntau dua latent cua sov tshaj paraffin thiab ib tug dav melting point kev pab them nqi, haum rau ntau yam kub yuav tsum tau.
-Qhov tsis zoo: Qee cov roj fatty acids tuaj yeem raug kev sib cais theem thiab kim dua li paraffin.
2. Inorganic theem hloov cov ntaub ntawv
Cov ntaub ntawv hloov pauv inorganic muaj xws li saline daws thiab hlau ntsev.
- Cov dej ntsev:
-Cov yam ntxwv: zoo thermal stability, siab latent cua sov, thiab tus nqi qis.
-Qhov tsis zoo: Thaum lub sijhawm khov, delamination tuaj yeem tshwm sim thiab nws yog corrosive, xav tau cov khoom ntim khoom.
- Hlau ntsev:
-Feature: High-theem hloov pauv kub, haum rau high-temperature thermal zog cia.
-Qhov tsis zoo: Kuj tseem muaj teeb meem corrosion thiab kev ua haujlwm degradation tuaj yeem tshwm sim vim rov ua dua thiab ua kom khov.
3. Biobased theem hloov cov ntaub ntawv
Biobased theem hloov cov ntaub ntawv yog PCMs muab rho tawm los ntawm cov xwm txheej los yog tsim los ntawm biotechnology.
- Nta:
-Ib puag ncig tus phooj ywg, biodegradable, tsis muaj teeb meem tshuaj, ua tau raws li qhov xav tau ntawm kev tsim kho kom ruaj khov.
-Nws tuaj yeem muab rho tawm los ntawm cov nroj tsuag lossis tsiaj cov ntaub ntawv raw, xws li zaub roj thiab tsiaj rog.
- Qhov tsis zoo:
-Tej zaum yuav muaj teeb meem nrog cov nqi siab thiab qhov chaw txwv.
-Cov thermal stability thiab thermal conductivity yog qis dua li cov PCMs ib txwm muaj, thiab tej zaum yuav xav tau kev hloov kho lossis cov khoom siv sib xyaw.
4. Composite theem hloov cov ntaub ntawv
Cov ntaub ntawv hloov pauv theem sib xyaw ua ke nrog PCMs nrog lwm cov ntaub ntawv (xws li cov ntaub ntawv thermal conductive, cov ntaub ntawv txhawb nqa, thiab lwm yam) txhawm rau txhim kho qee yam khoom ntawm PCMs uas twb muaj lawm.
- Nta:
-Los ntawm kev sib txuas nrog cov khoom siv thermal conductivity, thermal teb ceev thiab thermal stability tuaj yeem txhim kho tau zoo.
-Customization tuaj yeem ua kom tau raws li cov ntawv thov tshwj xeeb, xws li kev txhim kho cov neeg kho tshuab lub zog lossis txhim kho thermal stability.
- Qhov tsis zoo:
-Cov txheej txheem npaj yuav nyuaj thiab kim.
-Cov ntaub ntawv raug txuam thiab ua cov txheej txheem yuav tsum tau.
Cov ntaub ntawv hloov theem no txhua tus muaj lawv qhov tshwj xeeb zoo thiab daim ntawv thov scenarios.Kev xaiv ntawm hom PCM uas tsim nyog feem ntau yog nyob ntawm daim ntawv thov tshwj xeeb qhov kev xav tau ntawm qhov kub thiab txias, kev siv nyiaj txiag, kev cuam tshuam ib puag ncig, thiab kev cia siab rau lub neej.Nrog rau kev sib sib zog nqus ntawm kev tshawb fawb thiab kev tsim cov thev naus laus zis, kev tsim cov ntaub ntawv hloov pauv theem
Daim ntawv thov Scope yuav tsum tau nthuav dav ntxiv, tshwj xeeb tshaj yog nyob rau hauv lub zog cia thiab kev tswj kub.
Post lub sij hawm: Jun-20-2024