1. Iyini i-vinyl silicone oil?
Igama lekhemikhali: uwoyela we-silicone we-vinyl enamakepisi amabili
Isici sayo esiyinhloko sesakhiwo ukuthi ingxenye yeqembu le-methyl (Me) ku-polydimethylsiloxane ithathelwa indawo yi-vinyl (Vi), okuholela ekwakhekeni kwe-polymethylvinylsiloxane esebenzayo. Uwoyela we-silicone we-Vinyl ubonisa isimo somzimba soketshezi oluwuketshezi ngenxa yesakhiwo salo samakhemikhali esiyingqayizivele.
Uwoyela we-silicone we-vinyl uhlukaniswe ikakhulukazi ngezinhlobo ezimbili: uwoyela we-vinyl abicah wokugcina kanye namafutha abicah we-vinyl aphezulu. Phakathi kwazo, uwoyela we-vinyl silicone abicah ikakhulukazi uhlanganisa i-terminal vinyl polydimethylsiloxane (Vi-PDMS) kanye ne-terminal vinyl polymethylvinylsiloxane (Vi-PMVS). Ngenxa yokuqukethwe okuhlukile kwe-vinyl, inezici ezihlukile zohlelo lokusebenza.
Indlela yokusabela kawoyela we-silicone ye-vinyl ifana neye-dimethicone, kodwa ngenxa yeqembu le-vinyl esakhiweni sayo, inokuphinda isebenze. Enqubweni yokulungiselela uwoyela we-silicone we-vinyl, inqubo yokuphendula yokulingana yokuvula indandatho isetshenziswa kakhulu. Inqubo isebenzisa i-octamethylcyclotetrasiloxane kanye ne-tetramethyltetravinylcyclotetrasiloxane njengezinto zokusetshenziswa, futhi yakha isakhiwo seketango elinamazinga ahlukene e-polymerization ngokusebenzisa ukusabela okuvula indandatho okubangelwa i-asidi noma i-alkali.
2. Izici zokusebenza zamafutha abicah we-vinyl
1. Okungeyona ubuthi, akunambitheki, akukho ukungcola kwemishini
Uwoyela we-silicone we-Vinyl uwuketshezi olungenambala noma oluphuzi, olusobala olungenabo ubuthi, olungenaphunga, futhi olungenakho ukungcola kwemishini. Lawa mafutha awancibiliki emanzini, kodwa angaxubeka ne-benzene, i-dimethyl ether, i-methyl ethyl ketone, i-tetrachlorocarbon noma i-parafini, futhi ancibilike kancane ku-acetone ne-ethanol.
2. Ukucindezela komhwamuko omncane, indawo ephakeme ye-flash kanye nephoyinti lokuthungela, indawo ephansi yokuqandisa
Lezi zakhiwo zenza uketshezi lwe-silicone lwe-vinyl luzinze futhi lungaguquguquki emazingeni okushisa aphezulu noma ezindaweni ezikhethekile, ngaleyo ndlela kuqinisekiswe ukuphila kwabo isikhathi eside ezinhlobonhlobo zezicelo.
3. Ukusebenza kabusha okuqinile
I-silicone ye-vinyl ene-vinyl ene-vinyl kuzo zombili iziphetho, eyenza isebenze kakhulu. Ngaphansi kwesenzo se-catalyst, uwoyela we-silicone we-vinyl ungasabela ngamakhemikhali aqukethe amaqembu e-hydrogen asebenzayo namanye amaqembu asebenzayo ukulungiselela imikhiqizo ehlukahlukene ye-silicon enezakhiwo ezikhethekile. Ngesikhathi sokuphendula, uwoyela we-silicone we-vinyl awukhiphi ezinye izinto ezinesisindo esiphansi futhi unesilinganiso esincane sokuphendula, okuthuthukisa ngokwengeziwe ukusebenza kwawo embonini yamakhemikhali.
4. Ukushelela okuhle kakhulu, ukuthamba, ukukhanya, izinga lokushisa kanye nokumelana nesimo sezulu
Lezi zakhiwo zenza uketshezi lwe-vinyl abicah lube nezinhlelo eziningi ezisetshenziselwa ukuguqulwa kwamapulasitiki, ama-resin, amapende, ama-coatings, njll. irabha (HTV) ukuthuthukisa amandla nobulukhuni berabha abicah. Ekukhiqizweni kwerabha ye-silicone ewuketshezi, uwoyela we-vinyl silicone ubuye abe yimpahla yokusetshenziswa eyinhloko yokubumba irabha ye-silicone, iglue ye-elekthronikhi, nerabha ehambisa ukushisa.
3. Ukusetshenziswa kwamafutha e-vinyl abicah
1. Isisekelo senjoloba ye-silicone yezinga lokushisa ephezulu (HTV):
Amafutha e-silicone e-vinyl axutshwe nama-crosslinkers, ama-ejenti aqinisayo, ama-colorants, ama-ejenti okulawula isakhiwo, ama-anti-aging, njll., futhi asetshenziselwa ukulungisa izinga lokushisa eliphezulu le-silicone irabha eluhlaza. Le rabha ye-silicone inokuzinza okuhle nokuqina ezindaweni ezishisa kakhulu, futhi isetshenziswa kabanzi ezenzakalweni ezihlukahlukene ezidinga ukumelana nokushisa okuphezulu nokumelana nokugqwala.
2. Izinto eziyinhloko zerabha ye-silicone ewuketshezi:
Amafutha e-silicone e-vinyl angasetshenziswa ngokuhambisana nama-crosslinkers ane-hydrogen, ama-platinum catalysts, ama-inhibitors, njll., ukulungisa irabha ye-silicone ewuketshezi eyengeziwe. Le rabha ye-silicone ine-fluidity enhle, ukwakheka nokunwebeka, futhi isetshenziswa kabanzi embonini ye-silicone, izindwangu, amafilimu okuvikela kanye neminye imikhakha.
3. Ukulungiswa kwezinto ezintsha:
Uwoyela we-silicone we-vinyl uphendula ngezinto ezihlukahlukene eziphilayo njenge-polyurethane ne-acrylic acid ukuze ulungiselele izinto ezintsha ezisebenza kangcono. Lezi zinto ezintsha zinezici zokumelana nesimo sezulu, ukumelana nokuguga, ukumelana nemisebe ye-ultraviolet, nokuqina okuthuthukisiwe, futhi zisetshenziswa kabanzi embotsheni, ezintweni zokunamathisela, izinto zokuvala kanye neminye imikhakha.
4. Izicelo emkhakheni wezogesi:
Uwoyela we-silicone we-Vinyl usetshenziswa kakhulu ezintweni ezinamathelayo zikagesi, izinto zokunamathisela ezishisayo, izinamathiselo zesibani se-LED, ukupakishwa kwe-LED kanye ne-electronic component potting. Inikeza umsebenzi ophelele wokuvala ukuze kuvikelwe izingxenye ze-elekthronikhi ezibucayi kakhulu kanye nezingxenye ekungcoleni kwangaphandle noma ukunyakaza, okuqinisekisa ukuzinza nokuthembeka kwemishini kagesi.
5. Izinto zokusetshenziswa eziyinhloko ze-ejenti yokukhulula:
I-ejenti yokukhulula idlala indima ekuvimbeleni ukunamathela ekukhiqizweni kwezimboni, okufaka isandla ekukhululweni kahle kwemikhiqizo kanye nokwenza ngcono ukusebenza kahle kokukhiqiza.
4. Umkhuba wokuthuthukiswa kwemakethe kawoyela we-vinyl silicone
1.Ukunwetshwa kwenkundla yesicelo
I-Vinyl silicone fluids ayisetshenziswa kakhulu kuphela kumakhemikhali endabuko, imithi, i-elekthronikhi kanye neminye imikhakha, kodwa futhi idlala indima ebalulekile emikhiqizweni yezimonyo kanye nemikhiqizo yokunakekelwa komuntu siqu, izinto zokuthambisa, izithambisi ezithwalayo, izinto zokuvala uphawu, iziyinki, amapulasitiki kanye nenjoloba. Ikakhulukazi emkhakheni wezimonyo, uwoyela we-vinyl silicone usetshenziswa kabanzi ekwenzeni insipho, ama-shampoos, ama-moisturizers, ama-lotions, ama-conditioner neminye imikhiqizo ngenxa yokugcotshwa kwawo okuhle kakhulu nokungena kwawo.
2.Uwoyela we-silicone we-vinyl osebenzayo omusha
Abakhiqizi bangathuthukisa uhla olubanzi lwe-vinyl silicone fluids ngokuqhubekayo ngokuthuthukisa ifomula nokwandisa inqubo yokukhiqiza ukuze kuthuthukiswe i-viscosity, i-fluidity, ukuzinza kanye nezinye izakhiwo zamafutha we-vinyl silicone. Okufana nokuphulukisa ukukhanya, ukwelapha nge-cationic, i-biocompatible, njll., kulungele uhla olubanzi lwezinhlelo zokusebenza.
3.Vinyl abicah abicah ukulungiswa oluhlaza
Ngokuthuthukiswa kokuqwashisa ngemvelo, ukuthuthukiswa kwezinqubo ezintsha ezithinta imvelo zokulungiselela uwoyela we-vinyl silicone oluhlaza, njengokusetshenziswa kwama-monomers angaboli, ama-catalyst aqinile, uketshezi lwe-ionic, njll., ukunciphisa ukusetshenziswa kwezinyibilikitsi ezinobuthi kanye- imikhiqizo, futhi sizuze intuthuko esimeme.
4.Nano vinyl abicah impahla impahla
Idizayini kanye nokuhlanganiswa kwezinto zikawoyela we-silicone we-vinyl ene-nanostructures ekhethekile, njengama-nanoparticles kawoyela we-vinyl, ama-nanofiber namabhulashi amangqamuzana, njll., ukunikeza izinto ezisetshenziswayo ngemiphumela eyingqayizivele yendawo kanye nezakhiwo zokusebenzelana, futhi uvule izinkambu ezintsha zohlelo lokusebenza.
5.Ukupakisha, ukugcinwa kanye nokuthutha
Lo mkhiqizo uyinto esebenza ngamakhemikhali, futhi akufanele uhlanganiswe nokungcola (ikakhulukazi ama-catalyst) ngesikhathi sokugcinwa nokuthuthwa, futhi kufanele ugwenywe ukuthintana nezinto ezingase zibangele ukusabela kwawo kwamakhemikhali, njengama-asidi, ama-alkali, ama-oxidant, njll. ukuvimbela ukuvela kwe-denaturation, futhi igcinwe endaweni epholile neyomile. Lo mkhiqizo uyimpahla engeyona ingozi futhi ingathuthwa ngokuvumelana nezimo zempahla evamile.
Isikhathi sokuthumela: Jul-05-2024