Ngaba i-Silicone Rubber iyancipha xa ishushu? Ukutyhila iNyaniso emva kwe-Coefficient yoKwandiswa kweThermal
SiliconeIrabha, imathiriyeli esebenza kakhulu esetyenziswa kakhulu kwi-electronics, i-aerospace, kunye nemimandla yezonyango, kudala itsalela ingqalelo kuyo. Thermal Diimpawu ze-eformation. Ngokuphathelele umbuzo wokubaabicahIrabha iyancipha xa ibonakaliswe kubushushu, uphando lwakutsha nje kunye nemizekelo yobugcisa ibonisa ukuba ivulcanized abicahIrabha ibonisa kakuhleT Thermal uzinzo. Kwiqondo lokushisa eliphezulu, ngokuyinhloko ibonisa ukwanda kwe-thermal, kungekhona i-shrinkage. Ukucutheka komda wayo kuphantsi kakhulu, kwaye nokuba "zero shrinkage" inokufezekiswa ngeendlela zohlengahlengiso.
一．Iingcamango ezingezizo eziQhelekileyo kunye neNyaniso yezeNzululwazi
Kubomi bemihla ngemihla, izixhobo ezininzi zifumana ukufinyela okubonakalayo okubonakalayo xa kushushu, okukhokelela kwi-stereotype yokuba bacuthe xa kushushu. Nangona kunjalo, lo mgaqo awusebenzi ekusebenzeni okuphezulu abicahirabha.
"Le yingcamango ephosakeleyo eqhelekileyo. Ihlanjululwe ngokupheleleyo abicahIrabha inesakhiwo sothungelwano esizinzile kakhulu esinamacala amathathu. Xa isesichengeni sobushushu, ikhonkco layo lemolekyuli liye lihlengahlengiswe ngokugqithisileyo, elibonakalisa ubukhulu becala 'njengokuncipha komda' ophantsi kakhulu, ongaphantsi kwe-1%. Okubaluleke ngakumbi, ngenxa yentshukumo eyongeziweyo ye-thermal yeemolekyuli zayo, eyona nto ixhaphakileyo yendalo yento yonke kukuba ilandela umgaqo 'wokwandiswa kwe-thermal kunye nokucutheka', ebonisa ukwanda okuncinci kwe-thermal kunokuncipha."
二
Ingxelo iqaphela ukuba isalathisi esiphambili sozinzo lwe-dimensional ye-material kwiqondo lobushushu yi-coefficient yayo yokwanda kwe-thermal (CTE). Umgangatho ophezulu abicahirabha ngokuqhelekileyo ine-CTE kwi-200-300 μm / m · ° C uluhlu-phezulu kunezinyithi kodwa iphantsi kakhulu kuneeplastiki ezininzi eziqhelekileyo kunye neerubha. Oku kuthetha ukuba utshintsho lwe-dimensional phantsi kotshintsho olufanayo lobushushu luncinci kakhulu kwaye luyalawuleka. Yemihla ngemihla abicahi-cookware, i-molds yokubhaka, izincedisi ze-elektroniki, kunye nezinye izinto, olu tshintsho luncinci alubonakali kwaye alunampembelelo ekusebenzeni.
三．Uzinzo luvela kuxhathiso olubalaseleyo lobushushu
Uzinzo lwe-dimensional ye abicahIrabha ekugqibeleni isukela ekuxhathiseni kwayo okugqwesileyo kumaqondo obushushu aphezulu naphantsi. "Ufanelekile abicahimveliso yerabha inomgangatho wokusebenza wobushushu obusuka ku -60°C ukuya ngaphezulu kwe-200°C. Ngaphakathi kolu luhlu, igcina i-elasticity yayo kunye neempawu ezibonakalayo, kwaye ayiyi kuguqulwa ngokusisigxina okanye iyancipha ngenxa yokuphindaphinda imijikelezo eshushu kunye nebandayo. Inkxalabo ayifanelanga ibe yincipha, kodwa kunokubakho ukuguga kwe-thermal, i-embrittlement, okanye ukubola kumaqondo obushushu aphezulu kakhulu (ngaphaya komda wokunyamezela kwawo).
四.Iizicelo zoShishino: Ukusuka ku "Passive Adaptation" ukuya "kuSebenzi olusebenzayo" loKwandiswa kweThermal.
1. Ukwenziwa kweNdibaniselwano: Silicone I-Rubber Coi-re molds ibonelela ngokulingana koxinzelelo ngokunyuka kwe-thermal ngexesha lokubunjwa kwamacandelo e-carbon fiber, ukubuyisela i-autoclaves yendabuko kunye nokunciphisa iindleko zezixhobo nge-50%.
2. Ukupholisa kwe-Electronics: I-Thermally conductive abicahi-rubber (i-CTE ye-0.5x10-4 / ° C kuphela) isetyenziselwa ukutshabalalisa ukushisa kwi-chips yesiseko se-5G, ukuqinisekisa ukuthembeka kwexesha elide kumaqondo aphezulu.
3. IiNdawo eziNgqongileyo: Siliconeamatywina erabha anokumelana ne -60°C ukuya kuma-300°C ukumelana nokusasazeka kwemitha kwizixhobo zeplanti yamandla enyukliya ngaphandle koguquko.
5. Isiphelo
"Indlela yokuziphatha kwe-thermal deformation abicahirabha ixhomekeke kwi-crosslink density kunye nenkqubo yokuzalisa. Ngokuyilwa kweemolekyuli, sizuze ukwandiswa kobushushu obulawulekayo, obubambe amandla amakhulu kwizicelo ezizayo njengokutywina iipakethi zebhetri yemoto yamandla amatsha. Siliconeiipropathi zokwandiswa kwe-thermal yerubha azikho isiphene, kodwa kunoko kubonakaliswa kwe-elasticity ephezulu kunye nokuzinza. Ngokuhambela phambili kwitekhnoloji yohlengahlengiso, esi sixhobo siyahamba sisuka ekubeni "sinobuntununtunu kwiqondo lobushushu" siye ekubeni "silungelelanise iqondo lobushushu," sibonelela ngamathuba amakhulu okwenziwa komgangatho ophezulu.
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