1. Yintoni ioli ye-silicone ye-vinyl?
Igama leKhemikhali: ioli ye-silicone ephindwe kabini
Into ephambili yesakhiwo kukuba inxalenye yeqela le-methyl (Me) kwi-polydimethylsiloxane ithathelwa indawo yi-vinyl (Vi), okubangelwa ukubunjwa kwe-polymethylvinylsiloxane esebenzayo. Ioli ye-silicone ye-Vinyl ibonisa uhlobo olubonakalayo lwe-liquid fluid ngenxa yesakhiwo sayo esisodwa sekhemikhali.
Ioli ye-silicone ye-Vinyl ihlulwe kakhulu ibe ziindidi ezimbini: ioli ye-silicone yokuphela kunye neoli ye-silicone ephezulu. Phakathi kwazo, i-oyile ye-vinyl ye-silicone ye-terminal ibandakanya i-terminal vinyl polydimethylsiloxane (Vi-PDMS) kunye ne-terminal vinyl polymethylvinylsiloxane (Vi-PMVS). Ngenxa yomxholo wevinyl ohlukeneyo, uneempawu ezahlukeneyo zesicelo.
Indlela yokusabela yeoli ye-silicone ye-vinyl ifana ne-dimethicone, kodwa ngenxa yeqela le-vinyl kwisakhiwo sayo, inokusebenza okuphezulu. Kwinkqubo yokulungiselela ioli ye-silicone ye-vinyl, inkqubo yokuphendula i-ring-open equilibrium reaction isetyenziswa kakhulu. Inkqubo isebenzisa i-octamethylcyclotetrasiloxane kunye ne-tetramethyltetravinylcyclotetrasiloxane njengezinto eziluhlaza, kwaye yenza isakhiwo sekhonkco kunye needigri ezahlukeneyo zepolymerization ngokusebenzisa i-ring-open-opening reaction catalyzed by acid okanye alkali.
2. Iimpawu zokusebenza zeoli ye-silicone ye-vinyl
1. Non-ityhefu, incasa, akukho ukungcola mechanical
Ioli ye-silicone yeVinyl yinto engenambala okanye etyheli, ulwelo olucacileyo olungenatyhefu, olungenavumba, kwaye alunabumdaka bomatshini. Le oli ayinyibiliki emanzini, kodwa inokuxutywa ne-benzene, i-dimethyl ether, i-methyl ethyl ketone, i-tetrachlorocarbon okanye i-kerosene, kwaye i-soluble kancinane kwi-acetone kunye ne-ethanol.
2. Uxinzelelo oluncinci lomphunga, indawo yokukhanya ephezulu kunye nendawo yokutshisa, indawo esezantsi yokukhenkceza
Ezi zakhiwo zenza i-vinyl silicone fluids izinzile kwaye ingabonakali kwiqondo lokushisa eliphezulu okanye kwiindawo ezikhethekileyo, ngaloo ndlela iqinisekisa ubomi obude kwiinkqubo ezahlukeneyo.
3. Ukusebenza okuqinileyo
I-silicone ye-vinyl ene-vinyl ene-vinyl kuzo zombini iziphelo, eyenza isebenze kakhulu. Ngaphantsi kwesenzo se-catalyst, i-vinyl ioli ye-silicone inokusabela kunye neekhemikhali eziqukethe amaqela e-hydrogen asebenzayo kunye namanye amaqela asebenzayo ukulungiselela iimveliso ezahlukeneyo ze-silicon ezineempawu ezizodwa. Ngexesha lokuphendula, ioli ye-silicone ye-vinyl ayikhuphi ezinye izinto ezinobunzima obuphantsi kwaye inomlinganiselo omncinci wokuphendula ukuguqulwa, okuphucula ngakumbi ukusebenza kwayo kwishishini lemichiza.
4. Ukutyibilika okugqwesileyo, ukuthamba, ukuqaqamba, ubushushu kunye nokumelana nemozulu
Ezi zakhiwo zenza i-vinyl silicone fluids ibe noluhlu olubanzi lwezicelo ekuguquleni iiplastiki, iirasi, iipeyinti, iingubo, njl. Ngelo xesha, ingasetyenziselwa njengento esisiseko ekrwada kwimveliso yobushushu obuphezulu be-silicone vulcanized. irabha (HTV) ukomeleza amandla kunye nobulukhuni berabha abicah. Kwimveliso yerabha ye-silicone elulwelo, i-oyile ye-vinyl ye-silicone ikwayeyona nto iphambili yokubumba irabha ye-silicone, iglu ye-elektroniki, kunye nerabha eqhubayo eshushu.
3. Ukusetyenziswa kweoli ye-silicone ye-vinyl
1. Isiseko semathiriyeli yobushushu obuphezulu berabha ye-silicone yevulcanized (HTV):
Ioli ye-silicone ye-Vinyl ixutywe kunye ne-crosslinkers, i-reinforcing agents, i-colorants, i-arhente yokulawula isakhiwo, i-anti-aging agents, njl., kwaye isetyenziselwa ukulungiselela ubushushu obuphezulu be-silicone yerabha ekrwada. Le rubha ye-silicone inozinzo oluhle kunye nokuqina kwiindawo eziphezulu zokushisa, kwaye isetyenziswa ngokubanzi kwiimeko ezahlukeneyo ezifuna ukuxhathisa ukushisa okuphezulu kunye nokuxhathisa ukubola.
2. Izinto eziphambili zerabha ye-silicone elulwelo:
Ioli ye-silicone ye-Vinyl ingasetyenziswa ngokudibanisa ne-hydrogen-containing crosslinkers, i-platinum catalysts, inhibitors, njl., Ukulungiselela irabha ye-silicone eyongezelelweyo yolwelo. Le rubber ye-silicone ine-fluidity enhle, ukubunjwa kunye no-elasticity, kwaye isetyenziswa ngokubanzi kushishino lwe-silicone, iingubo, iifilimu ezikhuselayo kunye nezinye iindawo.
3. Ukulungiswa kwezinto ezintsha:
Ioli ye-silicone ye-Vinyl iphendula ngezinto ezahlukeneyo ze-organic ezifana ne-polyurethane kunye ne-acrylic acid ukulungiselela izinto ezintsha kunye nokusebenza okungcono. Ezi zixhobo zitsha zineempawu zokunganyangeki kwemozulu, ukuchasana nokuguga, ukuchasana kwe-ultraviolet, kunye nokuqina okuphuculweyo, kwaye zisetyenziswa ngokubanzi kwiingubo, ukunamathela, izinto zokutywina kunye nezinye iindawo.
4. Usetyenziso kwinkalo yombane:
Ioli ye-silicone ye-Vinyl isetyenziswa ngokubanzi kwi-electronic adhesives, i-adhesives conductive conductive, i-LED yesibane, ukupakishwa kwe-LED kunye ne-electronic component potting. Inika umsebenzi wokutywina ogqibeleleyo wokukhusela amalungu e-elektroniki abuthathaka kakhulu kunye namalungu kungcoliseko lwangaphandle okanye intshukumo, iqinisekisa uzinzo kunye nokuthembeka kwezixhobo zombane.
5. Iimathiriyeli eziphambili ze-ejenti yokukhulula:
I-arhente yokukhululwa idlala indima ekuthinteleni ukunamathela kwimveliso yemveliso, enegalelo ekukhululweni kakuhle kweemveliso kunye nokuphucula ukusebenza kakuhle kwemveliso.
4. I-Vinyl i-silicone ye-oyile yokuphuhliswa kwemarike yendlela
1.Ukwandiswa kwentsimi yesicelo
Ulwelo lwe-silicone ye-Vinyl alusetyenziswanga ngokubanzi kwiikhemikhali zendabuko, amayeza, i-elektroniki kunye nezinye iindawo, kodwa zidlala indima ebalulekileyo kwizinto zokuthambisa kunye nemveliso yokunyamekela, i-lubricant, i-lubricant ephetheyo, izinto zokutywina, ii-inki, iiplastiki kunye nerabha. Ngokukodwa kwintsimi yezithambiso, ioli ye-vinyl ye-silicone isetyenziswa kakhulu ekwenzeni iisepha, i-shampoos, i-moisturizers, i-lotions, i-conditioner kunye nezinye iimveliso ngenxa yokuthambisa kwayo kunye nokungena kwayo.
I-2.Ioli entsha ye-silicone ye-vinyl esebenzayo
Abavelisi banokuphuhlisa uluhlu olubanzi lwe-vinyl silicone fluids esebenzayo ngokuqhubekayo ukuphucula ifomula kunye nokuphucula inkqubo yokuvelisa ukuphucula i-viscosity, i-fluidity, ukuzinza kunye nezinye iipropati ze-vinyl ioli ye-silicone. Okufana nokunyanga ukukhanya, i-cationic-curing, i-biocompatible, njl., ifanelekile kuluhlu olubanzi lwezicelo.
I-3.I-Vinyl ioli ye-silicone yokulungiswa okuluhlaza
Ngokwandiswa kolwazi lwendalo esingqongileyo, uphuhliso lweenkqubo ezintsha zokusingqongileyo zokulungiswa kohlaza kweoli yesilicone ye-vinyl, efana nokusetyenziswa kwe-monomers ye-biodegradable, i-catalysts eqinile, ulwelo lwe-ionic, njl., ukunciphisa ukusetyenziswa kwezinyibiliki ezinetyhefu kunye no- iimveliso, kunye nokuzuza uphuhliso oluzinzileyo.
4.Nano vinyl ioli ye-silicone izinto
Uyilo kunye nokuhlanganiswa kwezixhobo zeoli ye-silicone ye-vinyl ene-nanostructures ekhethekileyo, njenge-vinyl ye-silicone yeoli nanoparticles, i-nanofibers kunye neebrashi ze-molecular, njl.
5.Ukupakishwa, ukugcinwa kunye nokuthutha
Le mveliso yinto esebenzayo yeekhemikhali, kwaye ayiyi kuxutywa kunye nokungcola (ingakumbi i-catalysts) ngexesha lokugcinwa kunye nokuthutha, kwaye kufuneka igwenywe ekudibaneni nezinto ezinokubangela ukusabela kwayo kweekhemikhali, ezifana ne-acids, alkali, i-oxidants, njl. ukuthintela ukuvela kwe-denaturation, kwaye igcinwe kwindawo epholileyo neyomileyo. Le mveliso ayinabungozi kwaye inokuthuthwa ngokwemiqathango yempahla eqhelekileyo.
Ixesha lokuposa: Jul-05-2024