Qhov Hidden "Molecular Glue" hauv Silicone Tawv: Tsawg npaum li cas -Hydrogen Silicone Roj Txhim Kho Kev Ua Haujlwm
Thaum koj txaus siab rau qhov kev xav zoo nkauj ntawm lub rooj zaum lossis qhuas cov dej tsis zoo thiab tsis muaj dej tsis zoo- tiv thaiv sab hauv ntawm lub nkoj, nws nyuaj rau xav txog tias qhov kev paub zoo tshaj no yog los ntawm cov khoom tsis pom: qis- hydrogen silicone roj.
Hauv kev lag luam tshuaj, nws feem ntau hu ua "molecular activator" thiab "core crosslinking agent" hauv kev sib txuas ntawm siab - cov ntaub ntawv ua tau zoo.
Thawj Qhov Tseem Ceeb Ua Haujlwm: "Crosslinking Master" ntawm Peb -Dimensional Network
Qhov zais cia rau qhov softness, elasticity, thiab siab tensile lub zog ntawm silicone tawv, piv rau cov tawv tiag tiag, nyob rau hauv qhov ruaj khov peb -sib nqus qauv tsim los ntawm nws cov txheej txheej. Cov txheej txheem no tso siab rau qis -hydrogen silicone roj.
Tsawg-hydrogen silicone roj molecules muaj cov tshuaj "Si-H" reactive heev (silicon-hydrogen bonds). Nyob rau hauv qhov kev txiav txim ntawm platinum catalyst, cov active hydrogen atoms ua zoo li tshaib plab ob txhais tes, nrees tuav ob daim ntawv cog lus nyob rau hauv lwm yam silicone roj molecules, uas ua rau ib tug hydrosilylation cov tshuaj tiv thaiv.
Cias muab, qis-hydrogen silicone roj yog "choj" txuas cov saw hlau sib txawv. Nws hloov ua kua silicone roj hmab rau hauv ib qho khoom, zoo heev elastomer. Yog tsis muaj nws, qhov muaj zog, hnav- tiv taus, thiab tsis yog- shedding zaj duab xis ntawm cov tawv nqaij tsis tuaj yeem tsim.
Lub luag haujlwm tseem ceeb thib ob: "Xaiv qhov hloov pauv" rau qhov kawg kov
Thaum koj kov cov tawv silicone, qhov du, supple, thiab tsis yog - greasy xav yog ua tsaug rau qis - hydrogen silicone roj.
Hauv kev tsim, qis-hydrogen silicone roj, tom qab koom nrog hauv cov tshuaj tiv thaiv, ua kom cov yeeb yaj kiab zoo dua qub- tsim cov khoom ntawm siloxanes ntawm cov tawv nqaij. Nws ua rau cov txheej txheej tshwm sim tsis yog tsuas yog du, tab sis kuj nthuav tawm cov ntaub zoo nkauj thiab softness. " Qhov zoo tshaj plaws tactile no khaws cia tshwj xeeb zoo thiab yuav tsis ua nplaum los yog tawv thaum lub sij hawm zoo li qee cov txheej txheem.
Lub hauv paus ntsiab lus tom qab no yog tias qis-hydrogen silicone roj nce nws qhov hnyav molecular los ntawm kev sib txuas, ua rau lub zog ntawm cov txheej txheem molecular chains dej ntau dua, yog li ua kom pom qhov muag muag ntawm lub ntuj roj txheej ntawm cov tawv tiag tiag.
Thib peb Core Function: Ib qho "Invisible Armor" rau kev tiv thaiv nto
Silicone-coated tawv ib txwm muaj cov huab cua tiv thaiv zoo thiab tiv thaiv dej, thiab qis-hydrogen silicone roj pab ua kom cov khoom zoo tshaj plaws.
Thaum qis -hydrogen silicone roj yog siv rau tawv, nws tsim ib tug ntom, hydrophobic methylsiloxane zaj duab xis rau saum npoo. Cov yeeb yaj kiab no muaj qhov nro qis heev, tiv thaiv cov tee dej thiab cov roj stains los ntawm cov tawv nqaij yooj yim, yog li muab cov dej tsis zoo, tsis muaj zog, thiab nws tus kheej - ntxuav cov khoom.
Tsis tas li ntawd, zaj duab xis no kuj tseem pab tiv thaiv lub substrate los ntawm UV raug thiab ya raws - cuam tshuam txog kev degradation, cuam tshuam rau cov tawv nqaij ntawm qhov chaw sab nraum zoov (xws li yachts thiab tsheb sab hauv).
Fourth Core Function: Lub hauv paus "Anchoring Agent"
Hauv kev tsim cov tawv silicone, muaj kev sib raug zoo ntawm cov txheej thiab cov ntaub hauv paus (cov fibers hauv qab) yog qhov tseem ceeb rau kev ua haujlwm ntev. Tsawg-hydrogen silicone roj ua lub luag haujlwm ntawm "tus neeg saib xyuas" ntawm no.
Nws tuaj yeem txhim kho kev sib cuam tshuam ntawm txheej txheej thiab substrate nto, sib sib zog nqus embedding nws tus kheej mus rau hauv lub crevices ntawm lub substrate zoo li tsob ntoo cag. Qhov no muaj zog adhesion tsis tsuas yog tiv thaiv cov txheej los ntawm tev tawm tab sis kuj zoo tswj cov kev nkag mus ntawm tus neeg sawv cev ntau dhau mus rau hauv cov khaubncaws sab nraud povtseg ntawm cov tawv nqaij, yog li tiv thaiv cov tawv tiav los ntawm kev txhav thiab ua kom muaj kev xav zoo tag nrho.
Vim li cas "tsawg hydrogen ntsiab lus"?
Qhov no tsa ib lo lus nug tseem ceeb: yog tias hydrogen muaj txiaj ntsig zoo, vim li cas ho tsis siv cov roj silicone nrog cov ntsiab lus hydrogen ntau dua?
Qhov no yog precisely qhov ingenuity ntawm technology lies. Cov ntsiab lus hydrogen ntawm qis -hydrogen silicone roj yog feem ntau tswj ntawm 0.1% thiab 0.8%. Qhov no yog ib tug precisely xam "golden range":
Tswj tau qhov sib txuas ntawm qhov sib txawv: Yog tias cov ntsiab lus hydrogen siab dhau (siab-hydrogen silicone roj), cov tshuaj tiv thaiv crosslinking yuav muaj zog heev, ua rau cov txheej txheej dhau los ua nyuaj, nkig, thiab tsis tshua muaj elasticity.
Cov txheej txheem kev nyab xeeb: Cov ntsiab lus hydrogen nruab nrab ua rau cov tshuaj tiv thaiv yooj yim rau kev tswj, ua kom muaj kev sib haum xeeb thiab kev ruaj ntseg ntawm txheej thaum lub sij hawm tsim khoom, tso cai rau lub cev kawg ntawm cov tawv nqaij (xws li kua muag lub zog thiab elongation) kom ncav cuag qhov zoo sib npaug.
Xaus
Tsawg-hydrogen silicone roj, ib lo lus zoo li cov tshuaj lom neeg, yog qhov "soul ingredient" ntawm niaj hnub siab - zoo silicone tawv. Los ntawm kev sib txuas ntawm cov tshuaj lom neeg, nws coj los ua ke zoo li qhov tsis sib haum xeeb -xws li softness, zog, dej tsis kam, thiab durability- nyob rau hauv ib qho khoom siv.
Lub sijhawm tom ntej koj txaus siab rau kev nplij siab thiab ib puag ncig cov txiaj ntsig ntawm siab -kawg silicone tawv, nco ntsoov tias qhov kev ua tau zoo tshaj plaws no yog ua tau los ntawm cov me me molecular "choj" ua haujlwm tom qab.
