Zvakanakira zvekupisa conductivity ne magnesium oxide

Thermal conductivity inozadzwa zvakafanana ne thermal matrix material ichishandisa thermal conductivity kuti ivandudze kupisa kwayo.Iyo yekupisa conduction performance inonyanya kuyerwa neiyo thermal conductivity (chikamu: W/mk).Thermal conductivity yakakamurwa kupisa conductive purasitiki uye thermal insulation plastiki.Izvo zvikamu zvikuru zvekupisa conductivity zvinosanganisira substrate zvinhu uye mafirita, uye substrate zvinhu zvinosanganisira PPS, PA6/PA66, LCP, TPE, PC, PPA, PEEK, nezvimwewo;High-heat carbon powder, nezvimwewo.

Thermal conductive plastiki ine zvinotevera maitiro:
(1) Uniform heat dissipation, kudzivirira kupisa mavara, kuderedza deformation yemunharaunda inokonzerwa nekupisa kwakanyanya nekuda kwekushisa kwakanyanya;
(2) Kurema kwechiedza, 40-50% yakareruka kupfuura aluminium;
(3) Yakanakira kuumba uye kugadzirisa, hapana yechipiri kugadzirisa;
(4) Dhigirii yepamusoro yekugadzirwa kwechigadzirwa;

Nekuti iyo nzira yekuumba inonyanya kuumba kuumba, rabha iri kuyerera ichienda muforoma mushure mekupisa, uye yozotonhodzwa.Hunhu hwekugadzirisa hunoita hunoita kuti kupisa kwemukati kwechinhu chinoratidza hunhu hwevakomana, ndiko kutungamira kweglue kuyerera panguva yejekiseni uye kutungamira kweiyo vertical glue kuyerera.Kazhinji, thermal conductivity munzira yekuyerera kweglue ndeye 3-6 nguva pane iyo yekupisa conductivity munzira inoyerera yerabha yakamira.Iyi misiyano inokonzerwa nejekiseni kuumbwa kwerubha kana ichigadzirwa nyore munzira yekuyerera.

Yakakwirira-kuchena kwe magnesium oxide, kuchena kwakanaka, diki granularity uye kufanana, uye decentralization yakanaka, inogona kushandiswa pakupisa kwekushisa kwesilicon film, thermal conductivity (PA6, PP, PPS, ABS), nezvimwewo. Mari yacho inogona kusvika 70- 80 zvikamu, uye iyo yakanyanya kupisa mwero inogona kusvika 5W/mk Mhedzisiro yacho inoratidza kuti kana huwandu hwe magnesium oxide iri pasi pezvikamu mazana maviri, kutungamira kwekupisa uye kusimba kwesimba rediki particle size magnesium oxide inozadza silicon rubber yakakura kupfuura yakakura. particle size ye magnesium oxide, nepo chiyero chekutambanudza chiri chakapesana;saizi huru yechidimbu ndiyo inopesana;saizi yakakura;Magnesium oxide / diki particle size magnesium oxide uye chiyero chekushandisa chesilicon rabha pa100/100 ndiyo yakakura;kuwedzera huwandu hwakakodzera hwe silane coupling agent inobatsira kuwedzera kutungamira kwekupisa kwesilicon rabha.Nhamba ye magnesium ndeye 0.5%.MuPA, PP, PES, wedzera 40-50% magnesium oxide, iyo inogona kuvandudza zvakanyanya kupisa kwepurasitiki.