Nyob rau hauv xyoo tas los no, silicone "squeezable cov khoom ua si" tau dhau los ua neeg nyiam, thiab peb cov hydrogen- muaj cov roj silicone ua lub luag haujlwm tseem ceeb hauv qab.
Hydrogen- muaj cov roj silicone yog siv los ua tus neeg sawv cev crosslinking (kho tus neeg sawv cev) thiab hloov kho rau silicone, ua rau cov kua silicone sib tov kom khov rau hauv cov khoom ua si elastic "squeezable" peb tuav hauv peb txhais tes.
Ib. Core Function: Crosslinking Agent (Curing)
Qhov no yog qhov tseem ceeb tshaj plaws thiab lub luag haujlwm tseem ceeb ntawm hydrogen -muaj cov roj silicone.
1. Txoj Cai Tseem Ceeb:
Lub hauv paus nplaum siv hauv "squeezable cov khoom ua si" feem ntau yog cov roj hmab silicone, uas nws cov saw hlau molecular muaj cov vinyl pawg.
Hydrogen-cov roj silicone muaj cov khoom siv silicon-hydrogen bonds (Si-H) ntawm nws cov saw hlau molecular.
Raws li kev ua ntawm platinum catalyst, cov vinyl pawg thiab Si-H daim ntawv cog lus tau txais cov tshuaj tiv thaiv ntxiv (hydrosilaneation cov tshuaj tiv thaiv). Cov tshuaj tiv thaiv no zoo li suav tsis txheeb me "bridges" (Si-H) txuas cov hlua ntev (cov roj hmab silicone) los tsim peb - cov qauv sib txuas.
Txheej txheem Analogy:
Ua ntej cov tshuaj tiv thaiv: Vinyl silicone roj (kua) + Hydrogen- muaj cov roj silicone (kua) + Platinum catalyst + colorant, thiab lwm yam .=Cov kua sib xyaw (ua tau rau hauv pwm).
Tom qab cov tshuaj tiv thaiv: Los ntawm cua sov los yog tawm hauv chav tsev kub, tshuaj lom neeg cov tshuaj tiv thaiv tshwm sim, thiab cov kua crosslinks mus rau hauv ib tug khoom, elastic silicone network.
2. Kev cuam tshuam rau cov khoom ntawm "squeezable silicone":
Tswj Hardness: Tus nqi ntawm cov roj hydrosilicon ntxiv yog ib qho tseem ceeb ntawm kev tswj qhov kawg hardness ntawm "squeezable silicone."
Kev sib ntxiv siab dua: Kev sib tw siab dua -kev sib txuas ceev, nruj dua molecular network, ua rau nyuaj "squeezable silicone."
Low addition: Lower cross-linking density, looser molecular network, resulting in a softer "squeezable silicone."
Cov neeg tsim khoom tuaj yeem tsim cov khoom lag luam nrog cov qauv sib txawv, los ntawm ultra- mos mus rau qhov nyuaj, los ntawm kev tswj xyuas cov roj hydrosilicon cov roj siv.
Kev Txiav Txim Moulding: Yog tsis muaj roj hydrosilicon, silicone tsis tuaj yeem hloov los ntawm cov kua mus rau ib qho khoom, thiab yog li, "squeezable silicone" tsis tuaj yeem muaj nyob.
Ob. Lub luag haujlwm thib ob tab sis tseem ceeb: Hloov kho
Dhau li ua tus neeg sawv cev crosslinking, hydrogen- muaj cov roj silicone muaj ntau yam txiaj ntsig ntxiv.
1. Kev Txhim Kho Cov Khoom Siv Kho Kom Zoo: Kev sib txuas sib txuas kom zoo ua rau lub zog tsim kua muag zoo thiab kev puas tsuaj rau silicone, tso cai rau "cov khoom ua si squeezable" rov qab kneaded thiab stretched yam tsis yooj yim tawg, yog li ncua lawv lub neej.
2. Txhim kho Surface Hydrophobicity: Hydrogen-muaj cov roj silicone yog cov hydrophobic inherently. Tom qab cov tshuaj tiv thaiv crosslinking, qee pawg hydrophobic tseem nyob ntawm silicone nto, ua "squeezable toys" dej-resistant, tsis tshua muaj dej stains, thiab yooj yim dua los ntxuav.
3. Txhim kho Internal Lubrication (Secondary): Hauv cov txheej txheem kho, qhov tsim nyog ntawm hydrogen- muaj cov roj silicone tuaj yeem muab qee qhov lubrication sab hauv, ua rau muaj kev xav zoo dua tom qab kho.
Peb. Cov ntsiab lus tseem ceeb hauv kev tsim khoom ntawm "Squeezable Silicone" khoom
1. Qhov sib piv ntxiv: Tus nqi ntawm hydrogen- muaj cov roj silicone ntxiv yuav tsum yog qhov tseeb, feem ntau ntawm 0.5% thiab 3% ntawm tag nrho qhov hnyav ntawm silicone system, nyob ntawm seb qhov yuav tsum tau muaj hardness, hom silicone hauv paus, thiab cov ntsiab lus hydrogen nquag. Qhov no yog ib txoj hauj lwm uas yuav tsum tau cov neeg tsim khoom ua cov kev sim rov ua dua los txiav txim siab cov qauv zoo.
2. Synergy nrog Catalyst: Ib platinum catalyst yuav tsum tau siv los pib cov tshuaj tiv thaiv. Platinum catalyst thiab hydrogen- muaj cov roj silicone yog qhov sib tw zoo tshaj plaws, sib koom ua ke txiav txim siab ceev thiab ua haujlwm ntawm kev kho.
3. Cov txheej txheem yuav tsum tau ua:
Uniform Mixing: Cov hydrogen- muaj cov roj silicone yuav tsum tau muab sib xyaw kom zoo thiab nrawm nrawm nrog lub hauv paus silicone, xim, thiab lwm yam khoom. Txwv tsis pub, kev kho tsis sib xws yuav tshwm sim, ua rau qee qhov chaw mos, qee qhov chaw nyuaj, lossis txawm tias qhov chaw tsis kho (nplaum).
Kev zam ntawm cov tshuaj lom: Hydrogen- muaj cov roj silicone thiab platinum catalysts yog cov rhiab heev rau qee yam khoom, xws li cov tebchaw uas muaj nitrogen, phosphorus, thiab sulfur, nrog rau cov tin catalysts. Cov tshuaj no tuaj yeem "tshuaj lom" catalyst, ua rau kev kho tsis tiav lossis tsis kho txhua. Yog li ntawd, cov pigments, fragrances, ntim, thiab lwm yam. siv nyob rau hauv cov txheej txheem ntau lawm yuav tsum tau ua kom paub tseeb tias yog tshwj xeeb rau "platinum vulcanization system".
Plaub. Summary of Advantages of Hydrogen- Muaj Silicone Roj
Rau cov khoom ua si xws li "squeezable cov khoom ua si," ntxiv - kho silicone siv hydrogen- muaj cov roj silicone raws li tus neeg sawv cev crosslinking muaj cov txiaj ntsig tseem ceeb hauv qab no piv rau lwm hom silicone (xws li condensation- kho silicone):
Environmentally Friendly thiab Non-Toxic: Cov tshuaj tiv thaiv ntxiv tsis tsim cov khoom lag luam; cov silicone kho yog ntshiab, tsis yog - tshuaj lom, thiab tsis muaj ntxhiab, ua tau raws li cov qauv kev nyab xeeb ntawm cov khoom ua si.
Deeply Curable: Nws tuaj yeem kho cov khaubncaws sab nraud povtseg, haum rau tsim "squeezable cov khoom ua si" ntawm ntau yam duab thiab ntau thiab tsawg.
High Transparency: Cov silicone kho tau zoo heev pob tshab, zoo tagnrho rau kev tsim siab -zoo "squeezable toys" uas muaj sequins, cartoons, thiab lwm yam.
Tsawg Shrinkage: ruaj khov molding qhov ntev tso cai rau kev rov ua dua ntawm cov ntaub ntawv pwm.
Cov Khoom Siv Lub Cev Zoo Tshaj Plaws: Muab kev ua haujlwm zoo heev, lub zog tensile, thiab kav ntev.
Xaus
Hauv cov ntsiab lus, cov roj hydrosilicon yog cov tshuaj tseem ceeb uas coj silicone "squeezable toys" mus rau lub neej. Los ntawm cov tshuaj tiv thaiv meej, nws hloov cov kua rau hauv cov khoom ua si uas muaj elasticity zoo meej thiab xav tau. Los ntawm kev tswj hwm hom thiab tus nqi ntawm cov roj hydrosilicon, cov tuam txhab tsim khoom tuaj yeem tsim ntau yam khoom "squeezable toy" kom tau raws li cov kev xav tau ntawm kev lag luam sib txawv rau softness, durability, thiab tsos. Txawm hais tias cov neeg siv khoom tsis tuaj yeem pom nws hauv cov khoom tiav, nws yog ib qho tseem ceeb thev naus laus zis tom qab siab -zoo "squeezable cov khoom ua si."
