Daim ntawv thov ntawm hydrogen- muaj cov roj silicone hauv silicone pad luam ntawv qhia nws txoj haujlwm tseem ceeb ua tus neeg sawv cev sib txuas / kho tus neeg sawv cev. Nws tsis yog siv ncaj qha rau hauv ncoo luam ntawv inks, tab sis theej hauv kev tsim cov ntaub qhwv lub taub hau thiab ua lub luag haujlwm tseem ceeb hauv kev kho ntawm qee yam tshwj xeeb inks.
Ua ntej. Lub hauv paus ntsiab lus tseem ceeb: Hydrosilylation Reaction
Hydrogen-muaj cov roj silicone (HSi-O-) yog polysiloxane nrog Si-H daim ntawv cog lus. Hauv kev lag luam ntawm silicone pad luam ntawv, nws tau dhau los ua "hydrosilylation cov tshuaj tiv thaiv" nrog vinyl silicone roj (Vi-Si-O-, uas muaj vinyl CH2=CH-) nyob rau hauv qhov kev txiav txim ntawm platinum catalyst.
Cov qauv tshuaj tiv thaiv yooj yim rau: Si-H + CH2=CH-Si → Si-CH2-CH2-Si
Kev Ua Haujlwm: Si-H daim ntawv cog lus hauv hydrogen- muaj cov roj silicone ua "txoj kev," txuas ntau qhov ntev - chains vinyl silicone roj molecules los tsim peb - cov qauv sib txuas. Cov txheej txheem no yog cov txheej txheem kho (kho) los ntawm cov kua silicone mus rau elastic khoom silicone.
Vim li cas thiaj siv qhov system no?
Ib puag ncig tus phooj ywg thiab tsis yog - tshuaj lom: Piv rau cov tshuaj peroxide kho cov tshuab, platinum curing ua tsis muaj byproducts, tsis muaj ntxhiab tsw, thiab ntau tus phooj ywg ib puag ncig.
Controllable curing: Cov tshuaj tiv thaiv feem ntau yuav tsum tau cua sov (piv txwv li, 120-150 degree) los pib thiab ceev cov txheej txheem; Lub sijhawm ua haujlwm ntev dua nyob rau hauv chav tsev kub pab kev tsim khoom.
Kev ua tau zoo tshaj plaws: Cov khoom siv silicone muaj qhov pom tseeb, tsim kua muag zoo, kev ua haujlwm zoo heev, kev kub siab ua haujlwm, thiab tsis tshua muaj shrinkage, uas yog qhov tseem ceeb rau kev ua kom qhov tseeb qhov tseeb ntawm cov ntaub qhwv - cov qauv luam tawm.
Ob. Daim ntawv thov tshwj xeeb theem thiab cov kauj ruam
Hydrogen-muaj cov roj silicone feem ntau yog siv hauv ob theem:
Kauj Ruam 1: Chaw tsim khoom Pad Printing Silicone Heads (Core Application)
Lub tshuab luam ntawv lub taub hau yog tus ntsuj plig ntawm cov txheej txheem luam ntawv, thiab nws qhov kev ua tau zoo ncaj qha txiav txim siab luam ntawv zoo. Hydrogen-muaj cov roj silicone yog ib qho ntawm cov khoom siv tseem ceeb rau kev tsim cov tshuab luam ntawv siab -kev ua tau zoo.
Cov kauj ruam:
1. Kev npaj ua qauv:
Khoom siv hauv paus: High-purity vinyl silicone roj (muab lub ntsiab qauv).
Crosslinking Agent: Hydrogen-muaj cov roj silicone (HSi cov ntsiab lus yuav tsum tau muab xam kom meej, feem ntau yog molar piv rau vinyl ntawm 1.0-1.5). Cov ntsiab lus hydrogen txiav txim siab crosslinking ceev, yog li cuam tshuam rau hardness, elasticity, thiab txhua yam khoom ntawm silicone taub hau.
Catalyst: Platinum catalyst (feem ntau yog platinum complex tov, siv me me, kwv yees li 0.1% -0.5%).
Additives: Tej zaum yuav muaj xws li inhibitors (kom tswj lub sijhawm ua haujlwm), xim pastes (rau kev hloov xim), cov qauv tswj cov neeg ua haujlwm, thiab lwm yam.
2. Sib tov thiab degassing:
Sib tov cov roj hmab silicone, hydrogen- muaj cov roj silicone, thiab lwm yam khoom ntxiv (tshwj tsis yog cov platinum catalyst) kom huv si thiab sib npaug.
Tom qab sib tov, lub tshuab nqus tsev degassing yuav tsum tau tshem tawm cov cua sib xyaw; txwv tsis pub, cov hnab ntim cua yuav tshwm hauv lub taub hau silicone.
3. Ntxiv Catalyst thiab Moulding:
Ntxiv ib qho kev ntsuas qhov tseeb ntawm platinum catalyst rau qhov sib tov degassed thiab do sai kom txog thaum homogeneous.
4. ** Ncua cov kua sib xyaw ua kua silicone rau hauv qhov ua ntej- ua lub taub hau pwm (cov pwm feem ntau yog 3D- luam tawm lossis CNC- tshuab tshuab / hlau pwm, nrog cov kab noj hniav ua lub taub hau).**
5. ** Thaum tshav kub kub Curing: **
Muab cov pwm ntim rau hauv qhov cub thiab kub ntawm 120℃- 150℃rau 10-30 feeb.
Thaum lub sij hawm tus txheej txheem no, cov hydrogen - muaj cov roj silicone thiab vinyl silicone roj tau txais cov tshuaj tiv thaiv hydrosilylation, thiab cov kua silicone solidifies rau hauv lub taub hau silicone nrog elasticity zoo heev.
6. **Post-kev kho thiab kho:**
Tom qab demolding, lub taub hau tshiab yuav tsum tau muab tso rau ntawm chav tsev kub lossis siab dua me ntsis rau lub sijhawm (kho) kom ua tiav qhov kev ua tau zoo ntawm kev ruaj ntseg.
Kev cuam tshuam rau Printing Head Performance:
Cov ntsiab lus hydrogen (active H%) thiab cov nyiaj ntxiv rau hydrogen- muaj cov roj silicone: Ncaj nraim txiav txim siab qhov tawv (Shore A) ntawm lub taub hau luam ntawv. Cov ntsiab lus hydrogen siab dua, sib ntxiv ntau dua, thiab ntau dua tus ntoo khaub lig-linking ceev ua rau lub taub hau luam ntawv nyuaj.
Molecular qauv thiab viscosity: cuam tshuam lub zog tensile, tsim kua muag lub zog, resilience, thiab deformation rov qab ceev ntawm lub taub hau luam ntawv.
Formulation Adjustment: Los ntawm kev kho qhov sib piv thiab hom hydrogen - muaj cov roj silicone thiab cov roj hmab silicone, lub taub hau luam ntawv customized haum rau cov substrates sib txawv (pav, nkhaus, thiab embossed nto) thiab txawv qauv precision yuav tsum tau tsim.
Theem Ob: Daim Ntawv Thov hauv Cov Ntawv Tshwj Xeeb Luam Ntawv Inks
Qee qhov sib ntxiv- kho silicone inks siv rau kev luam tawm ntawm cov khoom siv silicone (xws li cov xov tooj silicone thiab cov nyees khawm silicone) muaj tib txoj kev kho zoo li cov tau piav qhia saum toj no.
1. Ink Composition: Cov inks no feem ntau muaj peb ntu:
Cov khoom siv hauv paus: Vinyl- muaj silicone resin lossis silicone roj (muab xim thiab lub cev).
Crosslinking Agent: Hydrogen- muaj cov roj silicone (rau kev sib txuas thiab kho).
Catalyst: Platinum catalyst.
Xim paste / xim.
2. Cov txheej txheem thov:
Tus cwj mem feem ntau yog muab tso rau hauv ob daim ntawv - cov khoom siv (cov catalyst yog cais los ntawm lwm cov khoom thiab sib xyaw ua ntej siv).
Cov kua nplaum sib xyaw yog pauv mus rau saum npoo ntawm cov khoom siv silicone los ntawm lub taub hau luam ntawv.
Tom qab cua sov (piv txwv li, 120-150 degree, 1-3 feeb) induces ib hydrosilylation cov tshuaj tiv thaiv nyob rau hauv lub number case txheej, ua rau tus number case kho rau hauv ib tug muaj zog, elastic zaj duab xis. Cov cwj mem no muaj cov khoom siv tshuaj zoo sib xws rau silicone substrate, pom zoo adhesion thiab tsis kam mus ncab thiab abrasion.
Hydrogen-muaj cov roj silicone yog lub hauv paus tshuaj rau kev tsim kho siab - kev ua tau zoo ntawm lub tshuab luam ntawv lub taub hau thiab ua tiav kev kho ntawm cov inks tshwj xeeb hauv silicone pad printing tshuab. Los ntawm kev tswj hwm nws qhov ntau npaum li cas, cov cuab yeej luam ntawv pad thiab cov txheej txheem uas ua tau raws li ntau yam kev xav tau luam ntawv tuaj yeem tsim tau yooj yim.
Yog tias koj nyob hauv kev lag luam pad luam ntawv silicone, koj tuaj yeem tiv tauj Deepsea Technology. Peb yog cov chaw tsim khoom ntawm hydrogen- muaj cov roj silicone.
