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Silicone yog cov khoom siv hluavtaws uas muaj ntau yam siv hauv ntau yam kev siv thoob plaws hauv ntau qhov kev lag luam.Silicone tuaj yeem pom nyob rau hauv cov khoom uas peb siv hauv peb lub neej niaj hnub, los ntawm cov tsheb uas peb tsav tsheb, kev npaj zaub mov thiab cov khoom khaws cia, lub raj mis me me thiab cov pacifiers, thiab kho hniav thiab lwm yam khoom siv tu cev txhua hnub.Silicone kuj tau siv dav hauv cov khoom uas tuaj yeem cawm peb txoj sia nrog rau lub ntsej muag ua pa, IV's, thiab lwm yam khoom siv kho mob thiab kev kho mob tseem ceeb. Hauv tsab xov xwm no, peb tham txog nws txoj kev siv thiab yuav ua li cas nws piv rau silicon thiab yas.Koj yuav kawm paub ntau ntxiv txog cov txheej txheem tsim khoom silicone thiab qee qhov tseem ceeb ntawm qhov sib xyaw no.

Silicone yog dab tsi?

Silicone, tseem hu ua polysiloxane, yog cov khoom tsim los ntawm tib neeg.Nws yog ib qho polymer uas muaj siloxane uas muaj cov roj hmab zoo li zoo ib yam nrog cov molecules uas muaj cov chains ntawm alternating oxygen thiab silicon atoms.Qhov tshwj xeeb polymer no tuaj yeem yog cov khoom tseem ceeb siv hauv:

  • Resins
  • Cov kua dej
  • Elastomers

Ib qho kev sib txawv ntawm silicone thiab lwm yam khoom siv polymers yog tias lawv cov pob txha molecular tsis muaj cov pa roj carbon.Qee cov ntawv thov siv silicone muaj xws li:

Kev lag luam xws li tsheb mus rau textiles thiab cov neeg siv khoom mus rau kev kho mob siv silicone rau ntau lub hom phiaj.

Silicone yog dab tsi?

Raws li ntau yam polymer, silicone yog nyob rau hauv cov hauv qab no:

  • Caulks
  • Cov roj
  • Elastomers
  • Roj

Cov khoom tseem ceeb hauv silicone yog silica - ib qho ntawm feem ntau tshwm sim ntawm cov xuab zeb.Nov yog yam koj yuav tsum paub txog silicone vs. silicon.

Yuav ua li cas yog Silicone tsim?

Cia peb tshawb txog ntau yam kev koom tes hauv kev tsim khoom silicone.

Kauj Ruam 1: Tshem tawm Silicon los ntawm Silica

Kev rho tawm silicon los ntawm silica yog thawj kauj ruam hauv kev tsim cov silicone.Yuav kom ua tiav qhov no, lub ntim loj ntawm quartz xuab zeb yog rhuab mus rau qhov kub thiab txias li 1800 degrees Celsius.Ntshiab, cais silicon yog qhov tshwm sim.Thaum nws txias, manufacturers tuaj yeem zom nws mus rau hauv hmoov zoo.

Kauj Ruam 2: Muab cov hmoov nrog Methyl Chloride

Cov hmoov zoo silicon yog tov nrog methyl chloride.Kev siv cov cua sov dua ua kom muaj kev cuam tshuam ntawm cov khoom tsim ua dab tsi hu ua methyl chlorosilane.Methyl chlorosilane yog ib qho kev sib xyaw uas muaj ntau lub tebchaw, qhov tseem ceeb tshaj plaws uas, dimethyldichlorosilane, yog thawj lub tsev thaiv ntawm silicone.

Kauj Ruam 3: Distilled lub mix

Tau txais los ntawm dimethyldichlorosilane mus rau silicone yuav tsum muaj txheej txheem distillation nyuaj los cais ntau yam ntawm methyl chlorosilane los ntawm ib leeg.Vim tias chlorosilanes muaj cov ntsiab lus kub sib txawv, cov kauj ruam no suav nrog cov cua sov sib xyaw kom haum rau qhov kub thiab txias.

Kauj Ruam 4: Ntxiv dej

Tom qab distillation, sib xyaw dej nrog dimethyldichlorosilane ua rau kev sib cais ntawm hydrochloric acid thiab disilanol. Cov hydrochloric acid ces ua raws li ib tug catalyst rau diquinone, ua rau nws condense rau hauv polydimethylsiloxane.

Kauj Ruam 5: Polymerization ntawm Silicone

Koj yuav pom tias polydimethylsiloxane muaj siloxane daim ntawv cog lus.Cov nyiaj no yog cov pob txha silicone.Polymerizing silicone muaj ntau txoj kev sib txawv nyob ntawm cov khoom tiav cov khoom xav tau. Thaum cov txheej txheem tsim cov khoom siv silicone yuav zoo li nyuaj, qhov tseeb, nws yog qhov ncaj ncaj thiab tuaj yeem ua rau ntawm qhov loj me rau tus nqi qis.Raws li xws li, nws tsis tshua xav tsis thoob tias ntau yam silicone tau tshwm sim los ua ib qho ntawm cov elastomers nrov tshaj plaws rau kev lag luam thiab kev lag luam siv.

Silicone vs. Plastic

Yas thiab silicone yog cov khoom siv ruaj khov thiab zoo heev, thiab lawv tuaj yeem muaj qhov zoo sib xws thiab zoo li.Thaum ob qho tib si zoo ib yam li ib leeg, lawv cov tshuaj lom neeg thiab cov molecular muaj pes tsawg leeg ua rau lawv sib txawv. Plastics muaj cov pob txha molecular tsim nrog carbon thiab hydrogen.Kev tsim lawv siv cov peev txheej hauv qab no:

  • Ntuj roj
  • Nroj tsuag
  • Cov roj ntsha

Cov yas yog tsim los ntawm cov khoom tsis zoo ib puag ncig thiab tuaj yeem tawg mus rau hauv microplastics txaus ntshai.Lawv kuj qee zaum muaj cov co toxins, xws li bisphenol A. Cov yas feem ntau tsis kav ntev npaum li cov silicones thiab tsis tshua muaj kev tiv thaiv rau qhov kub thiab txias.

Cov txiaj ntsig ntawm Silicone

Cov khoom siv silicone muaj txiaj ntsig zoo rau ntau yam kev siv.Vim nws cov khoom, cov khoom siv silicone muaj ntau yam zoo, cov khoom no muaj xws li hauv qab no:

  • Yooj yim
  • Malleability
  • Qhov tseeb
  • Kub tiv taus
  • Dej tsis kam
  • Huab cua permeability
  • Durability
  • Yooj yim ntxuav
  • Nonstick
  • Stain-resistant
  • Muaj roj permeable
  • Ntev ntev
  • Tsis muaj tshuaj lom
  • Tsis muaj ntxhiab tsw

Silicone yog ib qho yooj yim rau customize thiab pwm thiab tuaj nyob rau hauv ntau hom (kua, khoom lossis ntawv) nyob ntawm cov txheej txheem molding lossis fabrication thiab kev siv tshwj xeeb.Txawm hais tias koj daim ntawv thov yuav tsum muaj qhov kub thiab txias dua los yog ntau dua malleability, cov khoom lag luam muab ntau yam sib xyaw thiab qib kom tau raws li koj cov kev xav tau ntau yam.


Post lub sij hawm: Jun-21-2023