Qhov Tseem Ceeb Qhov Sib Txawv - Khoom Noj Qib vs Qib Kho Mob Qib Silicone
Qhov kev thov rau cov roj hmab silicone tau nce sai heev nyob rau ob peb lub xyoo dhau los vim nws cov khoom zoo heev. Cov khoom no yog vim qhov txawv txav ntawm cov qauv molecular ntawm cov pob txha polymer nrog silicon atoms hloov nrog oxygen atoms. Kev sib txuas ntawm silicon oxygen zoo ib yam li kev sib txuas hauv quarts thiab iav. Vim tias cov kev sib txuas no, silicon qhia tau zoo heev thaum tshav kub kub tiv taus thaum piv rau lwm cov elastomers. Lwm qhov laj thawj rau qhov kev tiv thaiv kub kub no yog siab zog ntawm silicon-oxygen bonds thaum piv rau carbon-carbon ib daim ntawv cog lus. Lwm qhov zoo dua ntawm kev muaj cov khoom siv tsis zoo silicon-oxygen ob daim ntawv cog lus yog cov kab mob fungal thiab cov tshuaj tua kab mob, uas ua rau cov roj hmab silicon haum rau kev siv hauv ntau daim ntawv thov zaub mov. Silicon kuj muaj siab permeability rau gasses thiab siab compressibility. Ntxiv mus, Silicon roj hmab tiv taus oxidative tawm tsam los ntawm ozone thiab ultraviolet, tshwj xeeb tshaj yog nyob rau hauv kub ntau dua. Cov cuab yeej no thaum kawg txhim kho nws lub neej kev pabcuam txawm tias qhov kub siab. Ntxiv mus, silicon roj hmab qhia tau hais tias zoo tensile zog thiab muaj ib tug tsawg iav-hloov kub. Vim tias cov khoom zoo heev no, cov roj hmab silicone tuaj yeem siv dav hauv qhov kub ntawm -100 ° C txog 200 ° C. Txij li cov roj hmab silicone tsis muaj ntxhiab, tsis qab, thiab tsis muaj tshuaj lom, nws yog siv los tsim ntau yam khoom noj khoom haus thiab cov khoom siv kho mob. Qhov sib txawv tseem ceeb ntawm qib zaub mov thiab qib kev kho mob silicone yog lawv siv; Khoom noj khoom haus qib silicone yog siv rau kev tsim cov khoom noj khoom haus sib cuag thaum kho mob qib silicon yog siv rau kev tsim cov khoom siv tshuaj thiab cov khoom cog.
Khoom noj khoom haus qib Silicone yog dab tsi?
Silicone roj hmab tau siv dav los ua cov khoom noj khoom haus hauv ntau daim ntawv thov, tsis zoo li lwm yam elastomer hauv ntiaj teb vim nws qhov tshwj xeeb purity, tsis muaj ntxhiab, tsis muaj tshuaj lom, tsis muaj corrosive thiab inert zog. Feem ntau, tag nrho cov khoom noj khoom haus-hu rau silicon yuav tsum ua tau raws li ib qho ntawm cov txheej txheem zaub mov muaj qhia los ntawm ntau lub teb chaws / cheeb tsam. Cov kev cai no suav nrog EU txoj cai thiab cov lus qhia uas twb muaj lawm, Council of Europe Resolution on silicones, German pom zoo XV los ntawm BfR, thiab US Food and Drug Administration (FDA) cov cai.
Daim duab 01: Silicon Kitchen Utensils
Kev ntsuas kev nyab xeeb ntawm cov khoom siv silicone thiab cov khoom siv rau cov khoom noj tuaj yeem ua tau los ntawm kev luam ntiv tes rau cov neeg tsiv teb tsaws chaw los ntawm cov khoom siv silicone, ntau lub ntsiab lus ib nrab ntawm inductively txuas nrog ntshav plasma scan, txheeb xyuas cov neeg tsiv teb tsaws chaw, FDA cov cai rau Rubbers, kev txiav txim siab Ntawm cov ntsiab lus tshwj xeeb thiab formaldehyde, thiab kev txiav txim siab ntawm cov tsiaj tsis muaj molecular hnyav siv GC-MS thiab LC-MS instrumentation. Feem ntau, rau daim ntawv thov zaub mov-hu rau, nws raug pom zoo kom siv platinum-catalyzed curing tshuab rau silicone roj hmab. Tsis tas li ntawd, tom qab kev kho mob kuj tau pom zoo rau cov khoom noj khoom haus sib cuag txhawm rau txhim kho cov khoom siv kho tshuab thiab qhov tseem ceeb tshaj plaws, tshem tawm cov khoom tsis zoo uas tau los ntawm cov tshuaj sib txuas sib txuas thiab cov khoom siv hluav taws xob tsawg. Qee daim ntawv thov ntawm cov khoom noj khoom haus qib silicone suav nrog cov pwm ci, cov tais ntim dej khov, tuav cov riam hauv chav ua noj, whisks, diav, thiab lwm yam khoom siv hauv chav ua noj, thiab cov ntsaws ruaj ruaj thiab o-rings hauv kev sib cuag nrog cov khoom noj.
Kev Kho Mob Qib Silicone yog dab tsi?
Kev kho mob qib silicone roj hmab yog cov khoom siv roj hmab siv dav tshaj plaws ntawm txhua tus hluavtaws elastomers hauv cov khoom siv txuas mus tas li sub-dermal vim lawv tus cwj pwm tsis muaj tshuaj lom thiab inert. Txawm hais tias qee qhov muab tub lim thiab vulcanizing cov neeg ua haujlwm tau siv rau hauv cov txheej txheem silicone roj hmab, cov roj hmab tsis muaj ntau yam additives raws li cov khoom xyaw compounding, uas yog siv rau hauv cov txheej txheem roj hmab organic. Muaj ob hom kev kho mob qib silicones: chav-kub-vulcanizing hom thiab kub-vulcanizing hom. Lo lus 'kev kho mob-qib' yog siv rau cov silicones uas ua tiav peb qhov kev xav tau;
(a) keeb kwm ntev ntawm kev cog qoob loo zoo hauv cov tsiaj thiab tib neeg, (b) tsim nyob rau hauv kev tsim tshuaj zoo, (c) tswj tau zoo rau daim ntawv thov kev kho mob.
Platinum-catalyzed curing systems raug pom zoo rau kev kho mob qib silicon roj hmab cov khoom. Peroxide curing tsis pom zoo vim nws tawm los yog tawg cov kua qaub residue tom qab cov txheej txheem kho. Kev kho mob qib silicones yog siv los ua cov raj pub mis, catheters, cog rau kev siv ntev thiab luv luv, cov ntsaws ruaj ruaj thiab gaskets, syringe pistons, caws pliav kho silicon nplooj ntawv, gels, hnab looj tes, khob coj khaub ncaws, lub qhov ncauj qhov ntswg. thiab lwm yam. Hauv Tebchaws Meskas, cov khoom cog cog nrog qib kev kho mob silicones yog tswj hwm los ntawm Lub Chaw Rau Cov Khoom Siv thiab Radiological He alth (CDRH) raws li FDA cov cai. Tsis tas li ntawd, muaj cov cuab yeej siv kho mob nyob sab Europe kev tswj hwm kev kho mob qib silicones.
Daim duab 02: Silicone Breast Implants
Qhov txawv ntawm Cov Khoom Noj Qib thiab Qib Kho Mob Qib Silicone yog dab tsi?
Food Grade vs Medical Qib Silicone |
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| Khoom noj khoom haus qib silicone yog siv rau kev tsim khoom noj khoom haus sib cuag. | Kev kho mob qib silicone yog siv los tsim cov khoom siv tshuaj thiab cov khoom cog cog. |
| Nyob hauv kev tswj hwm | |
| Khoom noj khoom haus qib silicone yog tswj hwm los ntawm FDA, BfR thiab EU cov cai. | Kev kho mob qib silicon yog tswj hwm los ntawm FDA thiab EU cov cai. |
Summary – Food Grade vs Medical Grade Silicone
Ob qib zaub mov thiab qib kev kho mob qib silicone cov khoom lag luam yog tsim los ntawm cov txheej txheem tswj kom zoo kom ua tau raws li cov kev cai uas twb muaj lawm xws li FDA, BfR, EU, thiab lwm yam. Cov ntxhiab tsw, tsis muaj tshuaj lom, tsis muaj zog, kub kub stability. thiab tshuaj tiv thaiv yog cov khoom tseem ceeb ntawm silicone roj hmab uas ua rau lawv siv tau rau hauv cov khoom noj-kev sib cuag thiab kev kho mob-qib daim ntawv thov. Platinum catalyzed curing system yog pom zoo rau ob qib silicone. Ob qib kom ntseeg tau tias tsis muaj kev phom sij rau tib neeg thiab ib puag ncig, thiab pab txhawb kev sib raug zoo.
Download PDF Version of Food Grade vs Medical Qib Silicone
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov rub tawm PDF version ntawm no Qhov txawv Ntawm Cov Khoom Noj Qib thiab Qib Kho Mob Qib Silicone
