Technological Breakthroughs: Tom ntej no tsab xov xwm Sealants

Tau ntau xyoo lawm, cov sealants raug tso tseg raws li cov khoom siv yooj yim, cov khoom siv hluav taws xob- ua haujlwm txaus los sau cov khoob khoob thiab cov pob qij txha, tab sis tsis tshua muaj kev zoo siab rau kev tsim kho tshiab. Lawv tau pom tias yog qhov tsim nyog tom qab kev tsim kho, tsheb, thiab kev lag luam kev lag luam, nrog me ntsis kev cia siab ntawm kev hloov pauv dhau ntawm kev ua haujlwm yooj yim. Tab sis qhov lus piav qhia yog hloov pauv sai. Cov kev siv thev naus laus zis tsis ntev los no tau hloov pauv cov sealants los ntawm cov khoom siv qis qis rau hauv cov ntse, yoog raws, siab - cov ntaub ntawv ua tau zoo uas tuaj yeem hnov ​​​​lawv ib puag ncig, kho lawv tus kheej, ua hluav taws xob, thiab tiv taus huab cua. Cov kev nce qib no tsis yog kev txhim kho ntxiv xwb; lawv tab tom rov txheeb xyuas qhov sealants tuaj yeem ua tau, qhib qhov muaj peev xwm tshiab thoob plaws kev lag luam thiab ua txoj hauv kev rau lub sijhawm tom ntej ntawm engineering thiab tsim. Cia peb dhia dej mus rau hauv qhov kev tsim kho thev naus laus zis zoo siab tshaj plaws uas tau tsim lub neej yav tom ntej ntawm sealants.

 

Ib qho ntawm qhov kev ua tau zoo tshaj plaws nyob rau xyoo tas los no los ntawm cov kws tshawb fawb ntawm University of Michigan, uas tau nthuav tawm cov khoom siv hluav taws xob semiconductor silicone sealant -ib yam uas ib zaug pom tias ua tsis tau. Rau ntau tiam neeg, silicones tau paub txog lawv cov khoom insulating, ua rau lawv zoo tagnrho rau cov ntawv thov uas muaj hluav taws xob tiv thaiv tseem ceeb, xws li cov txheej txheem hluav taws xob thiab cov khoom siv biomedical. Tab sis qhov tshiab silicone copolymer no, uas sib txuas lub tawb - cov qauv thiab cov kab hluav taws xob silicone, defies cov lus pom zoo los ntawm kev ua hluav taws xob. Qhov tseem ceeb nyob hauv nws cov qauv molecular tshwj xeeb: Si-O-Si daim ntawv cog lus kaum, uas feem ntau zaum ntawm 110℃hauv ib txwm siv silicones (nruj dhau los tso cai rau electron ntws), pib ntawm 140℃hauv av hauv av thiab ncab mus rau 150℃hauv lub xeev zoo siab. Qhov kev hloov me ntsis tab sis tseem ceeb no tsim ib qho hluav taws xob "txoj kev loj" uas tso cai rau hluav taws xob kom txav mus los ntawm cov khoom siv dawb.

 

Qhov cuam tshuam ntawm qhov kev tshawb pom no nyob deb - mus txog. Tsis zoo li cov khoom siv hluav taws xob tsis zoo, qhov hloov tau yooj yim, sealant -raws li semiconductor tuaj yeem ua ke rau hauv cov khoom muag muag, khoov tau - qhib qhov rooj rau lub cim tshiab ntawm cov khoom siv hluav taws xob hloov tau yooj yim. Xav txog cov khoom siv coj los siv uas ua raws li tawv nqaij, hloov pauv photovoltaics uas tuaj yeem qhwv ib ncig ntawm qhov chaw nkhaus, lossis txawm tias cov khaub ncaws uas qhia cov qauv zoo lossis cov duab, txhua yam siv los ntawm lub tshuab sealant tshiab. Dab tsi ntxiv, cov xim copolymer tuaj yeem tswj tau los ntawm kev kho nws cov saw ntev: cov hlua ntev dua emit qis dua - lub zog liab lub teeb, thaum cov hlua luv luv ua rau siab dua - lub teeb xiav lub zog, tsim kom muaj xim tag nrho ntawm cov xim - lwm thawj rau silicones, uas ib txwm muaj pob tshab lossis dawb. Qhov kev ua haujlwm thib ob (kev coj ua thiab kev tswj xim) ua rau cov khoom ua si - hloov pauv rau kev lag luam xws li cov neeg siv khoom siv hluav taws xob mus rau kev siv thev naus laus zis.

 

Lwm qhov kev hloov pauv hloov tshiab yog kev txhim kho tus kheej - kho cov sealants, uas yog hloov kho kev kho thiab kav ntev thoob plaws kev lag luam thiab kev tsim kho. Cov ntaub ntawv ntse no yog tsim los kho qhov kev puas tsuaj yam tsis muaj kev cuam tshuam tib neeg, tshem tawm qhov kev xav tau ntawm kev siv nyiaj ntau, sijhawm - siv kev kho phau ntawv. Hauv plawv ntawm lub tshuab no yog microcapsules-me me, hollow spheres uas muaj cov tshuaj kho mob (xws li cov kua polymer lossis cov nplaum)- uas tau muab tso rau hauv lub sealant. Thaum lub sealant tsim ib qho tawg los yog qhov sib txawv, lub microcapsules rupture, tso tus neeg sawv cev kho, uas tom qab ntawd reacts nrog cov sealant nyob ib puag ncig los tsim ib qho kev ruaj khov, seamless bond, zoo "kho" qhov kev puas tsuaj.

 

Qhov tiag -lub ntiaj teb no daim ntawv thov ntawm tus kheej- kho sealants twb ua rau muaj kev cuam tshuam. Hauv kev tsim khoom, cov kav dej sealants nruab nrog cov thev naus laus zis no tuaj yeem txhim kho cov xau me me thaum lawv tshwm sim, tiv thaiv cov khoom kim heev thiab txo qis sijhawm. Hauv kev tsim kho, tus kheej- kho cov sealants siv hauv tsev facades thiab ru tsev tuaj yeem kho cov kab nrib pleb los ntawm thermal expansion lossis huab cua puas, ncua lub neej ntawm cov qauv thiab txo cov nqi kho. Txawm tias nyob hauv aerospace, qhov kev ntseeg siab tsis yog - sib tham tau, tus kheej - kho cov sealants tau siv los tiv thaiv cov khoom tseem ceeb ntawm kev hnav thiab tsim kua muag, ua kom muaj kev nyab xeeb thiab txo qhov xav tau kev tshuaj xyuas ntau zaus. Raws li kev siv thev naus laus zis, cov kws tshawb fawb tab tom txhim kho tus kheej- kho cov sealants uas tuaj yeem kho cov kab nrib pleb loj dua thiab txawm hloov mus rau qhov sib txawv ib puag ncig, ua rau lawv muaj ntau yam ntxiv.

 

Tshaj li kev coj ua thiab tus kheej - kho, 3D tshuab luam ntawv kuj tseem hloov kho txoj kev sealants tau siv thiab siv. Daim ntawv thov sealant ib txwm tso siab rau cov cuab yeej siv phau ntawv, uas tuaj yeem ua tsis tiav -tshwj xeeb tshaj yog rau cov duab nyuaj, nyuaj- mus txog -cov cheeb tsam, lossis cov khoom siv kev cai. 3D luam ntawv sealants daws qhov teeb meem no los ntawm kev tso cai rau cov ntaub ntawv meej, automated daim ntawv thov, kom ntseeg tau tias sealant yog siv raws nraim qhov yuav tsum tau muaj. Qhov no yog qhov muaj txiaj ntsig tshwj xeeb hauv kev tsim tsheb thiab aerospace engineering, qhov twg cov qauv kev cai sealant feem ntau xav tau kom haum rau cov qauv tsim tshwj xeeb, xws li cav qhov chaw, aircraft panels, lossis hluav taws xob enclosures.

 

3D-cov sealants uas tau luam tawm kuj tseem ua rau cov txheej txheem tsim khoom tau zoo dua. Piv txwv li, hauv kev tsim kho modular, 3D- luam ntawv sealants tuaj yeem tsim seamless, airtight bonds ntawm prefabricated Cheebtsam, txo lub sij hawm sib dhos thiab txhim kho tag nrho cov durability ntawm cov qauv. Hauv kev siv hluav taws xob, 3D luam ntawv tso cai rau cov sealants siv rau hauv cov qauv sib txawv nyob ib puag ncig cov khoom rhiab, muab kev tiv thaiv zoo dua los ntawm ya raws, plua plav, thiab kub hloov pauv. Raws li 3D luam ntawv thev naus laus zis tau nkag mus tau ntau dua, peb tab tom pom kev hloov pauv mus rau - thov daim ntawv thov sealant, uas txo cov khoom pov tseg thiab txo nqi.

 

Nanotechnology yog lwm tus neeg tsav tsheb tseem ceeb ntawm kev tsim kho tshiab hauv kev siv tshuab sealant, txhim kho kev ua tau zoo ntawm cov sealants ib txwm nyob hauv txoj kev uas yav tas los ua tsis tau. Los ntawm kev ntxiv nanoparticles - cov khoom me me ntsuas tsawg dua 100 nanometers - rau cov qauv sealant, cov kws tshawb fawb tuaj yeem txhim kho cov khoom siv lub zog, yoog raws, dej tsis kam, thiab kub tsis kam. Piv txwv li, ntxiv silica nanoparticles rau silicone sealants tsub kom lawv lub zog tensile thiab puas ntsoog, ua rau lawv zoo tagnrho rau siab - hnav daim ntaub ntawv xws li industrial machinery lossis tsheb thauj mus los infrastructure. Cov pa roj carbon nanotubes, lub sijhawm no, tuaj yeem txhim kho cov hluav taws xob conductivity (ua kom tiav cov semiconductor sealant breakthrough) thiab txhim kho thermal stability, ua sealants haum rau huab cua puag ncig, xws li siab -kub muaj txheej txheem lossis chaw siv.

 

Nanotechnology tseem ua rau txoj kev loj hlob ntawm "ntse" sealants uas tuaj yeem hnov ​​​​cov kev hloov hauv lawv ib puag ncig thiab teb raws li. Piv txwv li, qee cov khoom siv nanomaterial- txhim kho sealants tuaj yeem kuaj xyuas qhov hloov pauv ntawm qhov kub, av noo, lossis siab thiab kho lawv cov khoom kom tswj tau qhov ua tau zoo. Lwm tus tuaj yeem paub qhov muaj cov tshuaj lom neeg lossis cov khoom paug thiab ua rau muaj kev tiv thaiv kev tiv thaiv, tiv thaiv kev puas tsuaj rau cov qauv hauv qab. Cov sealants ntse no muaj txiaj ntsig tshwj xeeb hauv cov cheeb tsam hnyav, qhov twg cov xwm txheej tuaj yeem hloov pauv sai thiab npaj txhij txog.

Dab tsi ua rau cov txheej txheem thev naus laus zis no zoo siab heev yog lawv lub peev xwm los cuam tshuam thiab ntxiv rau ib leeg. Xav txog 3D- luam tawm, tus kheej- kho cov khoom siv hluav taws xob uas tuaj yeem ua hluav taws xob, hloov xim, thiab hloov mus rau nws ib puag ncig- qhov no tsis yog kev tshawb fawb tseeb; nws yog yav tom ntej ntawm sealant technology. Cov kev tsim kho tshiab no tsis yog tsuas yog txhim kho kev ua haujlwm ntawm sealants; lawv tab tom nthuav lawv lub luag haujlwm los ntawm cov khoom siv txhawb nqa mus rau qhov tseem ceeb uas ua rau muaj kev hloov pauv tshiab thoob plaws kev lag luam.

 

Lub neej yav tom ntej ntawm sealant tshuab yog ci, thiab cov kev nce qib no tsuas yog qhov pib. Raws li cov kws tshawb fawb txuas ntxiv mus thawb cov ciam teb ntawm cov ntaub ntawv tshawb fawb, peb yuav pom ntau txoj kev daws teeb meem sealant tshiab -los ntawm cov sealants uas tuaj yeem sib txuas lus nrog lwm lub tsev rau cov uas muaj biodegradable tag nrho. Dab tsi yog ib qho yooj yim gap muab tub lim tam sim no yog cov khoom siv hluav taws xob zoo, cov khoom siv ntau yam uas tau hloov pauv txoj kev peb tsim, tsim khoom, thiab tsim. Rau cov kws tshaj lij thoob plaws kev tsim kho, tsheb, hluav taws xob, thiab aerospace, nyob rau hauv kev paub txog cov txheej txheem thev naus laus zis no yuav yog qhov tseem ceeb rau kev nyob ua ntej ntawm qhov nkhaus thiab qhib qhov muaj peev xwm tshiab rau lawv cov haujlwm.