Nei Uchishandisa Silicone Rubber?
Yakatumirwa naNick P muna Kukadzi 21, '18
Silicone rubbers ndiwo marabha macomputer ane ese ari maviri organic uye inorganic zvivakwa, pamwe neiyo yakanyanya yakachena fumed silica sezvinhu zviviri zvakakosha. Ivo vane zvakawanda zvehunhu izvo zvisipo mune mamwe makemikari rubbers uye vane akakosha mabasa mune akawanda maindasitiri, senge magetsi, zvemagetsi, mota, chikafu, zvekurapa, zvemumba midziyo uye zororo zvigadzirwa. Silicone rubber yakasarudzika zvakasiyana neyakajairwa rabha pakuti iyo mamorekuru chimiro cheiyo polymer ine maketani marefu ekutsinhana nesilicone uye maatomu eoksijeni. Iyi polymer saka ine yakasikwa uye inorganic hunhu. Iyo inorganic chikamu chinoita kuti iyo polymer igone kwazvo kune yakanyanya tembiricha uye inopa yakanaka yemagetsi inodzivirira zvivakwa uye chemakemikari inertness, nepo organic makemikari zviitisa zvakanyanyisa kuchinjika.
Hunhu
Kuramba Kupisa:
Silicone rubbers inonyanya kupisa kupisa kana ichienzaniswa neyakajairika makemikari rubbers. Iko hakuna chingangoita shanduko muzvivakwa pa150oC uye nekudaro zvinogona kushandiswa zvirinani zvachose. Nekuda kweye yavo yakanakisa kupisa kusagadzikana ivo anoshandiswa zvakanyanya senge zvinhu zvezvikamu zverabha zvinoshandiswa patembiricha yakakwira.
Kutonhorwa Kakatonhora:
Silicone rubbers inotonhora zvakanyanya kusagadzikana. Iyo brittle poindi yeyakajairwa organic rubbers ndeye -20oC kusvika -30oC. Iyo brittle poindi yesilicone rubbers yakaderera se -60oC kusvika -70oC.
Kuramba Kwemamiriro ekunze:
Silicone rubbers ine yakanakisa mamiriro ekunze kusagadzikana. Pasi peozone ambience iyo inogadzirwa nekuda kwekubuda kwekona, zvakajairika makemikari rubbers anodzikira zvakanyanya asi silicone rubbers inoramba isingabatike. Kunyangwe vari pasi pekuratidzwa kwenguva yakareba kune ultraviolet uye mamiriro ekunze, zvivakwa zvavo zvinoramba zvisina kuchinja.
Zvigadzirwa Zvemagetsi:
Silicone rubbers ane akanakisa emagetsi ekudzivirira zvivakwa uye akatsiga pasi pehuwandu hwakawanda hweese frequency uye tembiricha. Hapana kuora kwakakosha muhunhu kunoonekwa kana silicone rubbers yakanyudzwa mumvura. Naizvozvo iwo akanakisa kushandiswa sevharidzi yemagetsi. Kunyanya silicone rubbers inonyanyisa kupokana nekorona kuburitsa kana magetsi pane yayo yepamusoro voltage uye saka anoshandiswa zvakanyanya sekudzivirira zvinhu zveakakwira magetsi zvikamu.
Kuitisa Kwemagetsi:
Magetsi conductive silicone rubbers ndiwo marabha macomputer ane emagetsi conductive zvinhu senge kabhoni iri kuiswa. Zvigadzirwa zvakasiyana zvine kupokana kwemagetsi zvichibva pane mashoma ohms-cm kusvika e + 3 ohms-cm zviripo. Zvakare, zvimwe zvivakwa zvakare zvakafananidzwa neizvo zvakajairika silicone rubbers. Naizvozvo dzinoshandiswa zvakanyanya senge nzvimbo dzekubata dzemakiribho, dzakakomberedza maheater uye sekuisa chisimbiso zvinhu zvekurwisa-kunofambira uye tambo dzemagetsi dzakakwira. Kazhinji, magetsi conductive silicone rubbers anowanikwa pamusika kazhinji iwo ane vhoriyamu yemagetsi resistivity kubva 1 kusvika e + 3 ohms-cm.
Kuneta Kuramba:
Mune general silicone rubbers haasi akakwirira pane akajairwa makemikari rubbers maererano nesimba mukushushikana kwakasimba senge kuneta kuramba. Nekudaro, kuti vakunde urema uhu, marubheri ayo ari nane kusvika makumi maviri nguva zvirinani pakuramba kuneta kuri kugadzirwa. Izvi zvigadzirwa zvinoshandiswa zvakanyanya muzvinhu zvakawanda zvakaita semakhibhodi emahofisi otomatiki michina uye zvikamu zverabha zvemotokari dzekutakura.
Kuramba kuRadioactive Rays:
Zvakajairika silicone rubbers (dimenthyl silicone rubbers) haitaridze kushomeka kwakanyanya kune mwaranzi mwaranzi kunyanya zvichienzaniswa nemamwe marubhu emakemikari. Nekudaro methyl phenyl silicone rubbers, ine phenyl radical iri kuverengerwa muiyo polymer, ine yakanaka kushora kune radioactive mwaranzi. Ivo anoshandiswa se tambo uye zvinongedzo munzvimbo yenyukireya magetsi zviteshi.
Kuramba kune Steam:
Silicone rubbers ine yakadzika mvura yekumwa yeinenge 1% kunyangwe kana vakanyudzwa mumvura kwenguva yakareba. Mechanical tensile simba uye zvemagetsi zvivakwa zvinenge zvisingabatwe. Kazhinji silicone rubbers haidzikire kana uchinge wasangana nemhepo, simba racho rinova rakakosha kana mweya wekumanikidza ukawedzerwa. Siloxane polymer inoputsika pasi peyakanyanya-kumanikidza mweya pamusoro pe150oC. Ichi chiitiko chinogona kugadziriswa nesilicone rabha dhizaini, kusarudzwa kweanogonesa vamiririri uye kupora kwemashure.
Kuitisa Kwemagetsi:
Magetsi conductive silicone rubbers ndiwo marabha macomputer ane emagetsi conductive zvinhu senge kabhoni iri kuiswa. Zvigadzirwa zvakasiyana zvine kupokana kwemagetsi zvichibva pane mashoma ohms-cm kusvika e + 3 ohms-cm zviripo. Zvakare, zvimwe zvivakwa zvakare zvakafananidzwa neizvo zvakajairika silicone rubbers. Naizvozvo dzinoshandiswa zvakanyanya senge nzvimbo dzekubata dzemakiribho, dzakakomberedza maheater uye sekuisa chisimbiso zvinhu zvekurwisa-kunofambira uye tambo dzemagetsi dzakakwira. Kazhinji, magetsi conductive silicone rubbers anowanikwa pamusika kazhinji iwo ane vhoriyamu yemagetsi resistivity kubva 1 kusvika e + 3 ohms-cm.
Kumanikidza Set:
Kana silicone rubbers ichishandiswa semarabha zvinhu zvekurongedza izvo zvinoitika zvinomanikidza deformation pasi pekupisa mamiriro, kugona kupora kunonyanya kukosha. Iyo compression seti yesilicone rubbers inoiswa patafura pamusoro peakawanda akasiyana tembiricha kubva -60oC kusvika 250oC. Kazhinji silicone rubbers inoda post kurapwa. Kunyanya mune yezvigadzirwa zvekugadzira zvine yakadzika compression set. Mushonga wekutumira unodikanwa uye kusarudzwa kweanowirirana vulcanizing vamiririri anodikanwa.
Thermal Conductivity:
Iko kupisa kwekushisa kwesilicone rabha ingangoita 0.5 e + 3 cal.cm.sec. C. Kukosha uku kunoratidza kwakanakisa kwekupisa kwekushisa kwesilicone rubbers, saka iwo anoshandiswa semashini ekupisa simbi nemidziyo yekupisa.
Yakakwira Tensile uye Kubvarura Simba:
Muzhinji simba rekubvarura remasilicones rubbers rinenge 15kgf / cm. Nekudaro, yakasimba tensile uye inobvarura zvigadzirwa zvigadzirwa (30kgf / cm kusvika 50kgf / cm) inoitwawo kuti iwanikwe nekuvandudza iyo polymer pamwe nekusarudza mafirita uye muchinjiko-unobatanidza vamiririri. Izvi zvigadzirwa zvinonyanya kushandiswa kugadzira kuumbwa kwakaomarara, uko kunoda simba rakakura rekubvarura, mhango dzemakomba ane reverse tapers uye hombe kuumbwa.
Incombustibility:
Silicone rubbers haitsve zviri nyore kunyangwe ivo vakakweverwa padyo nemurazvo. Zvisinei pavanongobatira moto, vanoramba vachipisa. Nekusanganiswa kweminiti murazvo unodzora, silicone rubbers inogona kuwana kusakwanisa uye kugona kudzima.
Izvi zvigadzirwa hazviburitse chero utsi kana gasi rine chepfu kana zvatsva, sezvo zvisina iwo chero organic organic halogen makomputa aripo mune organic rubbers. Nekudaro iwo ari echokwadi anoshandiswa mumidziyo yemagetsi midziyo yemagetsi uye michina yehofisi pamwe nezvinhu zvekuvharwa kwenzvimbo mundege, nzira dzepasi nepasi pezvivakwa zvemukati. Iwo anova akakosha zvigadzirwa mukuchengetedza zvinhu.
Kugara kweGasi:
Iyo membranes yesilicone rubbers ine zvirinani kubvumidzwa kwemagasi uye mvura mhute pamwe nekusarudzika kuri nani mukuenzanisa ne organic organic.
Physiological Inertness:
Silicone rubbers kazhinji inert kune physiology. Ivo zvakare vane vanofarira ehupfumi senge iwo asingakonzere kuumbana kweropa zviri nyore. Naizvozvo ivo vari kushandiswa se catheters, mhango faibha uye chakagadzirwa moyo-mapapu, majekiseni, zvokurapa rabha zvinomisa uye lenzi yeiyo ultrasonic kuongororwa.
Transparency uye Coloring:
Yakajairika organic rubbers yakasviba nekuda kwekuisirwa kabhoni. Kana iri yesilicone rubbers, zvinokwanisika kuburitsa iripachena rubbers nekubatanidza yakanaka silika iyo isingashatise iko kwekutanga kujekesa kwesilicone.
Nekuda kwekujeka kwakanyanya, mavara ne pigments ari nyore. Naizvozvo zvigadzirwa zvine mavara zvinogoneka.
Asina-kunamira Properties Asina-kuora:
Silicone rubbers ane chemakemikari inert uye ane yakanakisa chakuvhuvhu kusunungura chivakwa. Saizvozvo hadzikanganise zvimwe zvinhu. Nekuda kweichi chivakwa, ivo vanoshandiswa seyakagadziriswa mabhanzi emichina yekufotokopa, kudhinda mabhanzi, machira nezvimwe.
Ruzivo rwuri pamusoro rwunofungidzirwa kuve rwechokwadi asi harufungidzire kuve rwese rwunobatanidza. Sezvo mashandiro emunhu ega ega anokanganisa mashandisirwo echigadzirwa chimwe nechimwe, ruzivo rwuri mune ino data pepa runogona kungoonekwa segwara. Ndiwo wega mutoro wemutengi kuongorora zvaari kuda, kunyanya kana zvimiro zvakatarwa zvezvigadzirwa zvedu zvichikwanira mashandisiro ake.
Post nguva: Nov-05-2019