Lub teeb yuag, tus nqi qis, kev cuam tshuam lub zog, moldability, thiab kev hloov kho sai sai ua rau cov kev xav tau ntawm cov thermoplastics, uas pab ua kom cov khoom siv hluav taws xob, teeb pom kev zoo, thiab lub cav tsheb txias.#Polyolefin
PolyOne's thermally conductive compounds yog siv nyob rau hauv tsheb thiab E / E daim ntawv thov, xws li LED teeb pom kev zoo, dab dej kub thiab hluav taws xob enclosures.
Covestro's Makrolon thermal PC khoom suav nrog qib rau LED teeb thiab cov dab dej kub.
RTP's thermally conductive compounds tuaj yeem siv rau hauv vaj tse xws li lub thawv roj teeb, nrog rau cov tshuab hluav taws xob thiab cov khoom siv hluav taws xob sib xyaw ua ke ntau dua.
OEMs hauv hluav taws xob / hluav taws xob, tsheb, teeb pom kev zoo, khoom siv kho mob, thiab kev lag luam tshuab kev lag luam tau mob siab rau thermally conductive thermoplastics tau ntau xyoo vim lawv tab tom nrhiav kev daws teeb meem tshiab rau kev siv xws li radiators thiab lwm yam khoom siv hluav taws xob, LEDs.Case thiab roj teeb.
Kev tshawb fawb kev lag luam qhia tau hais tias cov ntaub ntawv no tau loj hlob ntawm tus lej ob, uas tau tsav los ntawm cov ntawv thov tshiab xws li tsheb hluav taws xob tag nrho, cov tsheb nyuaj thiab cov khoom lag luam loj LED teeb pom kev zoo.Thermally conductive plastics yog qhov nyuaj rau cov khoom siv niaj hnub, xws li hlau (tshwj xeeb yog aluminium) thiab ceramics, vim tias lawv muaj ntau yam zoo: cov khoom siv yas sib zog, qis dua tus nqi, yooj yim rau kev tsim, customizable, thiab muaj peev xwm muab tau zoo dua hauv thermal stability. , Kev cuam tshuam lub zog thiab khawb tsis kam thiab abrasion tsis kam.
Additives uas txhim kho thermal conductivity muaj xws li graphite, graphene, thiab ceramic fillers xws li boron nitride thiab alumina.Cov cuab yeej siv los siv lawv kuj nce qib thiab ua kom tau nyiaj ntau dua.Lwm qhov sib txawv yog qhov kev taw qhia ntawm cov khoom siv hluav taws xob qis (xws li nylon 6 thiab 66 thiab PC) rau hauv cov khoom siv hluav taws xob thermal, uas tso cov khoom siv kim heev xws li PPS, PSU, thiab PEI rau hauv kev sib tw.
Dab tsi yog tag nrho cov fuss txog?Ib qhov chaw ntawm RTP tau hais tias: "Lub peev xwm los tsim cov khoom seem, txo cov naj npawb ntawm cov khoom thiab cov kauj ruam sib dhos, thiab txo qhov hnyav thiab tus nqi yog tag nrho cov tsav tsheb rau kev siv cov khoom siv no.""Rau qee qhov kev siv, xws li cov ntaub thaiv hluav taws xob thiab cov khoom tiv thaiv overmolding , Lub peev xwm hloov hluav taws xob thaum ua hluav taws xob cais tawm yog qhov tseem ceeb ntawm kev mloog."
Dalia Namani-Goldman, Tus Thawj Saib Xyuas Kev Lag Luam Hauv Hluav Taws Xob thiab Hluav Taws Xob Kev Lag Luam ntawm BASF's Functional Materials Business, tau hais ntxiv tias: "Cov khoom siv hluav taws xob hluav taws xob tau dhau los ua qhov teeb meem ntawm kev txhawj xeeb ntxiv rau cov tuam txhab hluav taws xob thiab cov tsheb OEMs.Vim yog kev txhim kho thev naus laus zis thiab kev txwv qhov chaw, cov ntawv thov yog qhov me me thiab yog li ntawd thermal Lub tsub zuj zuj thiab nthuav tawm ntawm lub zog tau dhau los ua qhov tseem ceeb ntawm kev mloog.Yog tias qhov hneev taw ntawm cov khoom muaj tsawg, nws nyuaj rau ntxiv lub dab dej kub los yog ntxig rau cov khoom siv hlau. "
Namani-Goldman tau piav qhia tias kev siv hluav taws xob ntau dua tau nkag mus rau lub tsheb, thiab qhov kev thov rau kev ua lub zog kuj tseem loj tuaj.Hauv cov khoom siv hluav taws xob hauv tsheb, kev siv cov hlau kom tawg thiab tawg thaum tshav kub kub nce qhov hnyav, uas yog qhov kev xaiv tsis zoo.Tsis tas li ntawd, cov khoom siv hlau ua haujlwm ntawm lub zog siab yuav ua rau muaj hluav taws xob txaus ntshai.Thermally conductive tab sis tsis yog-conductive yas resin tso cai rau ntau dua voltages thaum tswj hluav taws xob kev nyab xeeb.
Celanese tus kws tshaj lij kev tsim kho thaj chaw James Miller (tus thawj coj ntawm Cool Polymers tau los ntawm Celanese hauv xyoo 2014) tau hais tias cov khoom siv hluav taws xob thiab hluav taws xob, tshwj xeeb tshaj yog cov khoom siv hluav taws xob thiab hluav taws xob hauv tsheb hluav taws xob, tau loj hlob nrog rau qhov chaw sib xyaw ua ke thiab txuas ntxiv mus."Ib qho tseem ceeb txwv qhov txo qhov loj ntawm cov khoom no yog lawv lub peev xwm tswj xyuas thermal.Kev txhim kho nyob rau hauv thermally conductive ntim xaiv ua rau cov khoom me me thiab ua haujlwm tau zoo dua. "
Miller tau taw qhia tias hauv cov khoom siv hluav taws xob hluav taws xob, cov khoom siv hluav taws xob thermally tuaj yeem raug overmolded lossis ntim, uas yog kev xaiv tsim tsis muaj nyob hauv cov hlau lossis ceramics.Rau cov khoom siv kho mob uas tsim hluav taws xob (xws li cov cuab yeej kho mob nrog cov koob yees duab lossis cov khoom siv cauterization), qhov tsim tau yooj yim ntawm cov khoom siv thermally tso cai rau cov khoom siv hnyav dua.
Jean-Paul Scheepens, tus thawj tswj hwm ntawm PolyOne cov khoom lag luam tshwj xeeb engineering, tau taw qhia tias kev lag luam tsheb thiab E / E muaj qhov xav tau loj tshaj plaws rau cov khoom siv hluav taws xob thermal.Nws tau hais tias cov khoom no tuaj yeem ua tau raws li ntau yam ntawm cov neeg siv khoom thiab kev lag luam xav tau, suav nrog kev nthuav dav tsim kev ywj pheej, ua rau kev tsim cov cheeb tsam saum npoo tuaj yeem txhim kho thermal stability.Thermally conductive polymers kuj muab ntau lub teeb yuag thiab kev sib koom ua ke, xws li kev sib koom ua ke cov dab dej kub thiab cov vaj tsev nyob rau hauv tib qho kev tivthaiv, thiab muaj peev xwm los tsim kom muaj kev sib koom ua ke ntawm thermal tswj system.Kev lag luam zoo ntawm cov txheej txheem txhaj tshuaj molding yog lwm qhov zoo.”
Joel Matsco, tus thawj tswj hwm kev lag luam loj rau polycarbonate ntawm Covestro, ntseeg tias cov khoom siv thermally conductive yog tsom rau kev siv tsheb."Nrog rau qhov zoo ntawm qhov ntom ntom ntawm li 50%, lawv tuaj yeem txo qhov hnyav.Qhov no tseem tuaj yeem txuas ntxiv mus rau cov tsheb hluav taws xob.Ntau lub roj teeb modules tseem siv hlau rau kev tswj thermal, thiab vim tias feem ntau cov modules siv ntau cov qauv rov ua dua sab hauv, lawv siv thermal conductivity Qhov hnyav tau txuag los ntawm kev hloov cov hlau nrog polymers sai sai. "
Covestro kuj pom qhov sib txawv ntawm qhov sib sib zog nqus ntawm cov teeb pom kev lag luam loj.Matsco taw qhia: "35-phaus es tsis txhob 70-phaus siab bay teeb yuav tsum muaj cov qauv tsawg dua thiab yooj yim rau cov neeg teeb tsa los nqa ntawm scaffolding."Covestro kuj tseem muaj cov khoom siv hluav taws xob hauv hluav taws xob xws li routers, uas cov khoom yas ua raws li Lub Thawv thiab muab kev tswj xyuas kub.Matsco tau hais tias: "Nyob hauv txhua lub khw, nyob ntawm tus qauv tsim, peb kuj tuaj yeem txo tus nqi txog li 20%.
PolyOne's Sheepens tau hais tias cov ntawv thov tseem ceeb ntawm nws cov thev naus laus zis thev naus laus zis hauv tsheb thiab E / E suav nrog LED teeb pom kev zoo, cov dab dej kub thiab hluav taws xob, xws li motherboards, inverter thawv, thiab kev siv hluav taws xob / kev nyab xeeb.Ib yam li ntawd, RTP cov chaw pom nws cov thermally conductive compounds siv nyob rau hauv vaj tse thiab cov dab dej kub, nrog rau cov khoom siv hluav taws xob ntau dua hauv kev lag luam, kev kho mob lossis cov khoom siv hluav taws xob.
Matsco ntawm Covestro tau hais tias daim ntawv thov tseem ceeb ntawm kev lag luam teeb pom kev zoo yog hloov cov hlau radiators.Ib yam li ntawd, kev tswj xyuas thermal ntawm high-end network daim ntawv thov tseem loj hlob hauv routers thiab cov chaw nres tsheb hauv paus.BASF's Namani-Goldman tshwj xeeb tau taw qhia tias cov khoom siv hluav taws xob muaj xws li cov tsheb npav, cov thawv sib txuas hluav taws xob thiab cov khoom sib txuas, lub cev muaj zog, thiab lub koob yees duab pem hauv ntej thiab nram qab.
Celanese's Miller tau hais tias cov khoom siv thermally conductive tau ua haujlwm zoo hauv kev muab 3D tsim yooj yim kom tau raws li kev tswj xyuas thermal ntau dua rau LED teeb pom kev zoo.Nws hais ntxiv: "Nyob rau hauv tsheb teeb pom kev zoo, peb lub CoolPoly Thermally Conductive Polymer (TCP) ua rau kev siv cov khoom siv hluav taws xob nyias nyias thiab cov khoom siv hluav taws xob hloov hluav taws xob rau lub taub hau sab nraud."
Celanese's Miller tau hais tias CoolPoly TCP muab cov kev daws teeb meem rau kev loj hlob ntawm lub tsheb taub hau-up zaub (HUD)-vim qhov chaw dashboard txwv, cua ntws thiab cua sov, daim ntawv thov no yuav tsum muaj cua sov ntau dua li cov teeb pom kev zoo.Lub hnub ci ci rau txoj hauj lwm ntawm lub tsheb."Qhov hnyav ntawm thermally conductive yas yog sib dua li txhuas, uas tuaj yeem txo qhov cuam tshuam ntawm kev poob siab thiab kev co ntawm lub tsheb no, uas tuaj yeem ua rau cov duab distortion."
Hauv cov ntaub ntawv roj teeb, Celanese tau pom cov kev daws teeb meem tshiab los ntawm CoolPoly TCP D series, uas tuaj yeem muab cov thermal conductivity yam tsis muaj hluav taws xob conductivity, yog li ua tau raws li cov kev cai nruj heev.Qee lub sij hawm, cov khoom siv txhawb zog hauv cov yas thermally txwv nws qhov elongation, yog li cov kws tshaj lij cov ntaub ntawv Celanese tau tsim cov nylon-based qib CoolPoly TCP, uas yog tawv dua li qib ib txwm (100 MPa flexural zog, 14 GPa flexural modulus, 9 kJ / m2. Charpy notch cuam tshuam) yam tsis muaj kev cuam tshuam thermal conductivity lossis ntom.
CoolPoly TCP muab kev yooj yim hauv kev tsim convection thiab tuaj yeem ua tau raws li qhov xav tau ntawm kev hloov pauv cua sov ntawm ntau daim ntawv thov uas muaj keeb kwm siv txhuas.Qhov kom zoo dua ntawm nws cov kev txhaj tshuaj molding yog tias txhuas tuag castings siv ib feem peb ntawm lub zog ntawm txhuas, thiab lub neej kev pab cuam txuas ntxiv los ntawm rau lub sij hawm.
Raws li Matsco ntawm Covestro, nyob rau hauv lub tsheb sector, lub ntsiab daim ntawv thov yog hloov radiators nyob rau hauv headlamp modules, pos huab modules thiab taillight modules.Thaum tshav kub kub dab dej rau LED siab beam thiab qis beam zog, LED teeb kav dej thiab lub teeb qhia, nruab hnub khiav teeb (DRL) thiab tig teeb liab teeb yog tag nrho cov muaj peev xwm siv tau.
Matsco tau taw qhia tias: "Ib qho ntawm cov tsav tsheb tseem ceeb ntawm Makrolon thermal PC yog lub peev xwm los sib txuas ncaj qha rau hauv lub dab dej kub ua haujlwm rau hauv cov teeb pom kev zoo (xws li cov reflectors, bezels, thiab vaj tse), uas tau ua tiav los ntawm ntau qhov kev txhaj tshuaj molding lossis ob- cov txheej txheem."Los ntawm lub reflector thiab thav duab feem ntau yog ua los ntawm PC, kev txhim kho adhesion tuaj yeem pom thaum lub thermally conductive PC rov molded rau nws los tswj cov cua sov, yog li txo qhov kev xav tau ntawm kev kho screws lossis nplaum.Kev thov.Qhov no txo ​​cov naj npawb ntawm cov khoom, cov haujlwm pabcuam thiab tag nrho cov nqi ntawm cov txheej txheem.Tsis tas li ntawd, hauv kev lag luam tsheb hluav taws xob, peb pom cov hauv kev hauv kev tswj xyuas thermal thiab kev txhawb nqa ntawm cov roj teeb modules. "
BASF's Namani-Goldman (Naamani-Goldman) kuj tau hais hauv cov tsheb fais fab uas cov roj teeb ntim khoom xws li cov roj teeb cais tau zoo heev."Lithium-ion roj teeb ua kom muaj cua sov ntau, tab sis lawv yuav tsum nyob rau hauv ib puag ncig tas li ntawm 65 ° C, txwv tsis pub lawv yuav degrade lossis poob."
Thaum xub thawj, thermally conductive yas tebchaw yog raws li high-end engineering resins.Tab sis nyob rau hauv xyoo tas los no, batch engineering resins xws li nylon 6 thiab 66, PC thiab PBT tau ua lub luag haujlwm loj.Covestro's Matsco tau hais tias: “Txhua yam no tau pom nyob hauv cov tsiaj qus.Txawm li cas los xij, vim yog vim li cas tus nqi, kev ua lag luam zoo li feem ntau yog tsom rau nylon thiab polycarbonate. "
Scheepens tau hais tias txawm hais tias PPS tseem siv ntau zaus, PolyOne's nylon 6 thiab 66 thiab PBT tau nce ntxiv.
RTP tau hais tias nylon, PPS, PBT, PC thiab PP yog cov khoom siv nrov tshaj plaws, tab sis nyob ntawm qhov kev sib tw ntawm daim ntawv thov, ntau cov thermoplastics ua tau zoo dua xws li PEI, PEEK thiab PPSU tuaj yeem siv tau.Ib qhov chaw RTP tau hais tias: "Piv txwv li, lub dab dej kub ntawm lub teeb LED tuaj yeem ua los ntawm nylon 66 cov khoom sib xyaw kom muab cov thermal conductivity txog li 35 W / mK.Rau cov roj teeb phais uas yuav tsum tau ua kom tsis muaj menyuam tsis tu ncua, PPSU yuav tsum tau ua.Hluav taws xob rwb thaiv tsev cov khoom thiab txo cov dej noo. "
Namani-Goldman tau hais tias BASF muaj ntau lub lag luam thermally conductive compounds, suav nrog nylon 6 thiab 66 qib."Kev siv peb cov ntaub ntawv tau muab tso rau hauv kev tsim khoom hauv ntau yam kev siv xws li lub cev muaj zog thiab cov khoom siv hluav taws xob.Raws li peb txuas ntxiv txiav txim siab cov neeg siv khoom xav tau rau thermal conductivity, qhov no yog ib qho chaw ua haujlwm ntawm kev tsim kho.Ntau tus neeg siv khoom tsis paub tias qib twg lawv xav tau Kev coj ua, yog li cov ntaub ntawv yuav tsum raug kho kom haum rau cov ntawv thov tshwj xeeb kom ua tau zoo. "
DSM Engineering Plastics tsis ntev los no tau tshaj tawm Xytron G4080HR, 40% iav fiber reinforced PPS uas ua kom zoo dua qhov kev ua haujlwm ntawm lub tsheb hluav taws xob thermal tswj tshuab.Nws yog tsim los nrog thermal aging zog, hydrolysis tsis kam, seem stability, tshuaj tiv thaiv ntawm kub kub thiab inherent nplaim retardancy.
Raws li cov lus ceeb toom, cov khoom siv no tuaj yeem tswj tau lub zog ntawm 6000 txog 10,000 teev ntawm qhov kub thiab txias ua haujlwm siab tshaj 130 ° C.Hauv 3000-teev 135 ° C dej / glycol ua kua ua kua, lub zog tensile ntawm Xytron G4080HR tau nce 114% thiab elongation ntawm kev tawg tau nce 63% piv nrog cov khoom sib npaug.
RTP tau hais tias raws li daim ntawv thov, ib qho ntawm ntau yam additives tuaj yeem siv los txhim kho thermal conductivity, thiab taw qhia: "Cov khoom siv nrov tshaj plaws txuas ntxiv yog cov khoom ntxiv xws li graphite, tab sis peb tau tshawb nrhiav cov kev xaiv tshiab xws li graphene lossis tshiab ceramic additives..system."
Ib qho piv txwv ntawm qhov kawg tau pib xyoo tas los los ntawm Martinswerk Div ​​​​Huber Engineered Polymers.Raws li cov lus ceeb toom, raws li alumina, thiab rau cov kev hloov pauv tshiab (xws li kev siv hluav taws xob), kev ua haujlwm ntawm Martoxid series additives yog zoo dua li lwm cov alumina thiab lwm cov khoom siv hluav taws xob.Martoxid yog txhim kho los ntawm kev tswj cov particle loj tis thiab morphology los muab kev txhim kho pob thiab ceev thiab tshwj xeeb nto kho.Raws li cov lus ceeb toom, nws tuaj yeem siv nrog cov nyiaj ntim ntau tshaj 60% yam tsis muaj kev cuam tshuam rau txhua yam lossis rheological zog.Nws qhia tau hais tias muaj peev xwm zoo hauv PP, TPO, nylon 6 thiab 66, ABS, PC thiab LSR.
Covestro's Matsco tau hais tias ob qho tib si graphite thiab graphene tau siv dav, thiab taw qhia tias graphite muaj tus nqi qis thiab nruab nrab thermal conductivity, thaum graphene feem ntau raug nqi ntau dua, tab sis muaj qhov pom tseeb thermal conductivity zoo.Nws hais ntxiv tias: "Muaj feem ntau yuav tsum muaj cov khoom siv thermally conductive, hluav taws xob rwb thaiv tsev (TC / EI), thiab qhov no yog qhov khoom ntxiv xws li boron nitride.Hmoov tsis, koj tsis muaj dab tsi.Nyob rau hauv cov ntaub ntawv no, boron nitride muab Cov hluav taws xob rwb thaiv tsev yog zoo dua, tab sis lub thermal conductivity yog txo.Ntxiv mus, tus nqi ntawm boron nitride tej zaum yuav siab heev, yog li TC / EI yuav tsum dhau los ua cov khoom ua tau zoo uas yuav tsum tau ceev nrooj los ua pov thawj tus nqi nce.
BASF's Namani-Goldman muab nws txoj hauv kev no: “Qhov kev sib tw yog ua kom muaj kev sib npaug ntawm thermal conductivity thiab lwm yam uas yuav tsum tau ua;los xyuas kom meej tias cov ntaub ntawv tuaj yeem ua tiav hauv cov khoom loj thiab tias cov khoom siv tshuab tsis poob ntau dhau.Lwm qhov kev sib tw yog los tsim kom muaj qhov system uas tuaj yeem siv dav.Kev daws teeb meem raug nqi. "
PolyOne's Scheepens ntseeg hais tias ob qho tib si carbon-based fillers (graphite) thiab ceramic fillers tau cog lus tias yuav tsum tau ua tiav cov thermal conductivity thiab sib npaug lwm yam khoom siv hluav taws xob thiab khoom siv.
Celanese's Miller tau hais tias lub tuam txhab tau tshawb nrhiav ntau yam khoom siv ntxiv uas ua ke nrog kev lag luam kev xaiv dav tshaj plaws ntawm vertically integrated base resins los muab cov khoom xyaw uas ua rau thermal conductivity Qhov ntau yog 0.4-40 W / mK.
Qhov kev thov rau cov khoom siv hluav taws xob ntau yam xws li thermal thiab hluav taws xob conductivity lossis thermal thiab nplaim hluav taws kuj zoo li nce.
Covestro's Matsco tau taw qhia tias thaum lub tuam txhab pib nws cov thermally conductive Makrolon TC8030 thiab TC8060 PC, cov neeg siv khoom tam sim ntawd pib nug seb lawv puas tuaj yeem ua rau cov khoom siv hluav taws xob.“Kev daws tsis yooj yim li.Txhua yam peb ua los txhim kho EI yuav muaj kev cuam tshuam tsis zoo rau TC.Tam sim no, peb muab Makrolon TC110 polycarbonate thiab tab tom tsim lwm cov kev daws teeb meem kom tau raws li cov kev cai no. "
BASF's Namani-Goldman tau hais tias cov ntawv thov sib txawv yuav tsum muaj cov thermal conductivity thiab lwm yam ntxwv, xws li cov roj teeb thiab cov khoom siv hluav taws xob siab, uas txhua tus xav tau cov cua sov dissipation thiab yuav tsum ua raws li cov qauv hluav taws xob nruj thaum siv lithium-ion roj teeb.
PolyOne, RTP thiab Celanese tau pom qhov xav tau loj heev rau cov khoom siv sib xyaw ua ke los ntawm txhua ntu kev lag luam, thiab muab cov thermal conductivity thiab EMI shielding, muaj kev cuam tshuam ntau dua, nplaim hluav taws xob, hluav taws xob rwb thaiv tsev, thiab cov khoom sib xyaw nrog cov haujlwm xws li UV tsis kam thiab thermal stability.
Cov txheej txheem molding ib txwm siv tsis zoo rau cov ntaub ntawv kub.Moulders yuav tsum nkag siab txog qee yam xwm txheej thiab cov kev txwv los daws cov teeb meem qee zaum tshwm sim los ntawm kev txhaj tshuaj kub kub.
Ib txoj kev tshawb fawb tshiab qhia tau hais tias hom thiab tus nqi ntawm LDPE sib xyaw nrog LLDPE cuam tshuam li cas rau kev ua tau zoo thiab lub zog / tawv ntawm lub tshuab cua tshuab.Cov ntaub ntawv tau qhia rau LDPE-nplua nuj thiab LLDPE-nplua nuj mixs.