Oya ibi ntibizarambirana, inyangamugayo-cyane cyane niba ukunda ibintu birambuye. Niba usomye, uzasangamo hafi ibintu byose wigeze ushaka kumenya kubyerekeye igice kimwe cya Silicone Sealants.
1) Icyo aricyo
2) Uburyo bwo kubikora
3) Aho kubikoresha
Intangiriro
Ikimenyetso kimwe cya silicone kashe ni iki?
Hariho ubwoko bwinshi bwa chimique ikiza kashe-Silicone, Polyurethane na Polysulfide nibyo bizwi cyane. Izina rituruka kumugongo wa molekile zirimo.
Umugongo wa silicone ni:
Si - O - Si - O - Si - O - Si
Silicone yahinduwe nubuhanga bushya (muri Amerika byibuze) kandi mubyukuri bivuze umugongo kama wakize hamwe na chimie ya silane. Urugero ni alkoxysilane yarangije okiside ya polypropilene.
Iyi chimisties yose irashobora kuba igice kimwe cyangwa ibice bibiri bigaragara ko bifitanye isano numubare ukeneye kugirango ubone ikintu cyo gukira. Kubwibyo, igice kimwe bivuze gusa gufungura umuyoboro, cartridge cyangwa pail kandi ibikoresho byawe bizakira. Mubisanzwe, sisitemu zigizwe nigice kimwe zifata nubushyuhe bwo mu kirere kugirango zibe reberi.
Noneho, igice kimwe cya silicone ni sisitemu ihamye mumiyoboro kugeza, iyo ihuye numwuka, ikiza kubyara reberi ya silicone.
Ibyiza
Igice kimwe silicone ifite ibyiza byinshi byihariye.
-Iyo wongeyeho neza birahagaze neza kandi byizewe hamwe no gufatira hamwe nibintu bifatika. Ubuzima bubi (igihe ushobora kubusiga muri tube mbere yuko uyikoresha) byibuze umwaka umwe nibisanzwe hamwe nibisobanuro bimara imyaka myinshi. Silicone nayo ntagushidikanya imikorere myiza yigihe kirekire. Imiterere yumubiri ntishobora guhinduka mugihe nta ngaruka zatewe na UV kandi, byongeye, bagaragaza ubushyuhe buhebuje burenze ubw'abandi bashizeho byibuze 50 ℃.
-Igice kimwe cya silicone gikiza byihuse, mubisanzwe bikura uruhu muminota 5 kugeza 10, bigahinduka ubusa mugihe cyisaha imwe hanyuma bigakira kuri reberi ya elastike igera kuri 1/10 cyimbitse mugihe kitarenze umunsi. Ubuso bufite reberi nziza.
-Kubera ko bishobora guhindurwa bisobanutse nikintu cyingenzi ubwacyo (guhinduranya ni ibara rikoreshwa cyane), biroroshye cyane kubihindura ibara ryose.
Imipaka
Silicone ifite aho igarukira.
1) Ntibishobora gushushanya irangi ryamazi-birashobora kuba amacenga hamwe n irangi ryibanze.
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Birumvikana ko, kubera imiterere nyayo yo kuba igice kimwe ntibishoboka kubona igice cyimbitse cyihuse binyuze mumuti kuko sisitemu igomba kwitwara nikirere bityo igakira kuva hejuru. Kubona bike byihariye, silicone ntishobora gukoreshwa nkikimenyetso cyonyine mumadirishya yikirahure kuko. Nubwo ari indashyikirwa mu kubika amazi menshi, imyuka y'amazi inyura mu buryo bworoshye binyuze muri reberi ya silicone yakize itera ibice bya IG igihu.
Ahantu h'isoko no gukoresha
Silicone igice kimwe ikoreshwa hafi ya hose nahantu hose, harimo, kubabaza bamwe mubafite inyubako, aho izo mbogamizi zombi zavuzwe haruguru zitera ibibazo.
Amasoko yubwubatsi na DIY afite umubare munini ukurikirwa n’imodoka, inganda, ibikoresho bya elegitoroniki n’ikirere. Kimwe na kashe zose, igice kimwe cya silicone yibikorwa byingenzi ni ugukurikiza no kuziba icyuho kiri hagati yubutaka bubiri busa cyangwa butandukanye kugirango wirinde amazi cyangwa imishinga inyuramo. Rimwe na rimwe, formulaire ntishobora guhinduka usibye kugirango irusheho kugenda neza hanyuma igahinduka igifuniko. Inzira nziza yo gutandukanya igifuniko, ifata hamwe na kashe iroroshye. Ikidodo gifunga hagati yubuso bubiri mugihe igipfundikizo gitwikiriye kandi kirinda kimwe gusa mugihe igiti kinini kigumana ubuso bubiri hamwe. Ikidodo kimeze nkibifatika iyo bikoreshejwe muburyo bwo gusiga ibintu cyangwa kubumba, ariko, biracyakora kashe ya substrate zombi usibye kubishyira hamwe.
Ubuhanga bwibanze
Ikidodo cya silicone muburyo budakunze kugaragara gisa na paste yuzuye cyangwa cream. Iyo uhuye n'umwuka, amatsinda yanyuma ya silicone polymer hydrolyze (reba n'amazi) hanyuma agafatanya, kurekura amazi no gukora iminyururu ndende ya polymer ikomeza kwitwara hamwe kugeza amaherezo paste ihinduka reberi itangaje. Itsinda ryitondewe kumpera ya silicone polymer iva mubice byingenzi bigize formulaire (usibye polymer ubwayo) aribyo guhuza. Nibihuzabikorwa biha kashe ibimenyetso biranga haba muburyo butaziguye nkumunuko nigipimo cyo gukiza, cyangwa muburyo butaziguye nkamabara, gufatira, nibindi kubera ibindi bikoresho fatizo bishobora gukoreshwa hamwe na sisitemu yihariye ihuza nkuzuza hamwe na porotokoro ya adhesion . Guhitamo iburyo bwambukiranya urufunguzo ni urufunguzo rwo kumenya imiterere yanyuma ya kashe.
Gukiza Ubwoko
Hariho uburyo butandukanye bwo gukiza.
1) Acetoxy (impumuro ya vinegere acide)
2) Oxime
3) Alkoxy
4) Benzamide
5) Amine
6) Aminoxy
Oximes, alkoxies na benzamide (bikoreshwa cyane muburayi) nibyo bita sisitemu idafite aho ibogamiye cyangwa idafite aside. Sisitemu ya amine na aminoxy ifite impumuro ya ammonia kandi mubisanzwe ikoreshwa cyane mubice byimodoka ninganda cyangwa ibikoresho byihariye byo kubaka hanze.
Ibikoresho bito
Imiterere igizwe nibice byinshi bitandukanye, bimwe muribi, bitewe nuburyo bugenewe gukoreshwa.
Gusa ibikoresho byingenzi byingenzi ni polymer reaction na crosslinker. Nyamara, abuzuza, poroteri ya adhesion, polymer idakora (plastike) polymer na catalizator hafi ya byose byongeweho. Mubyongeyeho, izindi nyongeramusaruro nyinshi zirashobora gukoreshwa nka paste yamabara, fungiside, flame-retardants, hamwe na stabilisateur.
Ibyingenzi
Ubwubatsi bwa oxime busanzwe cyangwa DIY ikidodo bizasa nk:
| % | ||
| Polydimethylsiloxane, OH yarangije 50.000cps | 65.9 | Polymer |
| Polydimethylsiloxane, trimethylterminated, 1000cps | 20 | Amashanyarazi |
| Methyltrioximinosilane | 5 | Kwambukiranya |
| Aminopropyltriethoxysilane | 1 | Umujyanama wa Adhesion |
| Ubuso bwa kwadarato 150 / g ubuso bwa silika | 8 | Uzuza |
| Dibutyltin | 0.1 | Catalizator |
| Igiteranyo | 100 |
Ibintu bifatika
Ibintu bisanzwe bifatika birimo:
| Kurambura (%) | 550 |
| Imbaraga za Tensile (MPa) | 1.9 |
| Modulus kuri 100 Kurambura (MPa) | 0.4 |
| Inkombe | 22 |
| Uruhu Mugihe (min) | 10 |
| Shakisha Igihe Cyubusa (min) | 60 |
| Igihe cyo gushushanya (min) | 120 |
| Binyuze mu Gukira (mm mu masaha 24) | 2 |
Imiterere ukoresheje izindi crosslinkers izasa nkaho wenda itandukanye murwego rwambukiranya, ubwoko bwa poroteri ya adhesion hamwe no gukiza catalizator. Imiterere yumubiri yabo izatandukana gato keretse abagura urunigi babigizemo uruhare. Sisitemu zimwe ntizishobora gukorwa byoroshye keretse hakoreshejwe umubare munini wuzuza chalk. Ubu bwoko bwibisobanuro biragaragara ko budashobora gukorwa muburyo bwumvikana cyangwa bworoshye.
Gutezimbere Ikidodo
Hariho ibyiciro 3 byo guteza imbere kashe nshya.
1) Igitekerezo, umusaruro no kugerageza muri laboratoire-nto cyane
Hano, chemiste wa laboratoire afite ibitekerezo bishya kandi mubisanzwe atangirana nintoki zama garama 100 za kashe kugirango turebe uko ikiza nubwoko bwa reberi ikorwa. Ubu hariho imashini nshya iboneka "The Hauschild Speed Mix" yo muri FlackTek Inc. Iyi mashini kabuhariwe ni nziza yo kuvanga utuntu duto 100g mumasegonda mugihe wirukana umwuka. Ibi nibyingenzi kuva ubu byemerera abitezimbere kugerageza mubyukuri ibintu bifatika byuduce duto. Silica yamenetse cyangwa ibindi byuzuza nkibishishwa byimvura birashobora kuvangwa muri silicone mumasegonda 8. De-airing itwara amasegonda 20-25. Imashini ikora muburyo bubiri bwa asimmetric centrifuge ikoresha cyane cyane ibice ubwabyo nkamaboko yabo avanga. Ingano ntarengwa yo kuvanga ni garama 100 kandi ubwoko butandukanye bwibikombe burahari harimo no kujugunywa, bivuze rwose ko nta suku.
Urufunguzo muburyo bwo gutegura ntabwo arubwoko bwibigize gusa, ahubwo nuburyo bwo kongeramo no kuvanga ibihe. Mubisanzwe guhezwa cyangwa gukuraho umwuka ni ngombwa kugirango ibicuruzwa bigire ubuzima bubi, kubera ko ibyuka byinshi birimo ubushuhe bizahita bitera kashe gukira imbere.
Umuhanga mu bya shimi amaze kubona ubwoko bwa kashe isabwa kumunzani we usaba kugeza kuri 1 quarti ya mixeur ivanze ishobora kubyara hafi 3-4 ntoya 110 ml (3oz). Ibi nibikoresho bihagije kugirango ubanze ugerageze ubuzima bwikizamini hamwe na test ya adhesion wongeyeho nibindi bisabwa bidasanzwe.
Arashobora noneho kujya mumashini ya gallon 1 cyangwa 2 kugirango akore 8-12 10 oz tubes kugirango arusheho kwipimisha byimbitse no gutoranya abakiriya. Ikidodo gisohoka mu nkono binyuze muri silindiri y'icyuma muri karitsiye ihuye na silinderi. Gukurikira ibi bizamini, yiteguye kuzamuka.
2) Gupima-hejuru no guhuza neza-ubunini buringaniye
Mu gipimo cyo hejuru, laboratoire yakozwe ubu ikorerwa kumashini nini mubusanzwe iri hagati ya 100-200 kg cyangwa hafi yingoma. Iyi ntambwe ifite intego ebyiri zingenzi
a) kureba niba hari impinduka zikomeye hagati yubunini bwa 4 lb nubunini bunini bushobora kuvamo kuvanga no gutatanya, igipimo cyibisubizo hamwe nubunini butandukanye bwa sheer mukuvanga, na
b) kubyara ibikoresho bihagije byo gutondekanya abakiriya no kubona ibyokurya bifatika kumurimo.
Iyi mashini ya gallon 50 nayo ifite akamaro kanini mubicuruzwa byinganda mugihe hakenewe ingano nkeya cyangwa amabara yihariye kandi ingoma imwe gusa ya buri bwoko igomba gukorerwa icyarimwe.
Hariho ubwoko bwinshi bwimashini zivanga. Ibintu bibiri bikunze gukoreshwa ni kuvanga umubumbe (nkuko bigaragara hejuru) hamwe no gutatanya umuvuduko mwinshi. Umubumbe mwiza nibyiza bivanze cyane mugihe utatanye akora neza cyane cyane muri sisitemu yo hasi yimitsi. Mubisanzwe byubatswe byubatswe, imashini irashobora gukoreshwa mugihe umuntu yitaye kuvanga igihe hamwe nubushyuhe bushobora kubyara umuvuduko mwinshi.
3) Ingano yuzuye yumusaruro
Umusaruro wanyuma, ushobora kuba mubice cyangwa bikomeza, twizere ko byabyara umusaruro wanyuma uhereye kumunzani. Mubisanzwe, umubare muto ugereranije (ibyiciro 2 cyangwa 3 cyangwa amasaha 1-2 yikurikiranya) yibikoresho byakozwe mbere mubikoresho byo kubyaza umusaruro kandi bikagenzurwa mbere yuko umusaruro usanzwe utangira.
Kwipimisha -Ibyo nuburyo bwo Kwipimisha.
Niki
Ibintu bifatika-Kurambura, Imbaraga za Tensile na Modulus
Gufatanya na substrate ikwiye
Ubuzima bwa Shelf-bwihuta kandi no mubushyuhe bwicyumba
Gukiza Ibiciro-Uruhu mugihe, Shakisha igihe cyubusa, Gucisha igihe kandi Binyuze mu gukiza, Amabara Ubushyuhe Buhamye cyangwa gutuza mumazi atandukanye nkamavuta
Mubyongeyeho, ibindi bintu byingenzi birasuzumwa cyangwa bikurikiranwa: guhuzagurika, umunuko muke, kwangirika no kugaragara muri rusange.
Nigute
Urupapuro rwa kashe rwashizweho hanyuma rugasigara rukiza icyumweru. Inzogera idasanzwe yikiragi iracibwa hanyuma igashyirwa muri Tensile Tester kugirango ipime ibintu bifatika nko kurambura, modulus nimbaraga zikaze. Zikoreshwa kandi mugupima imbaraga zifatika / zifatanije kurugero rwateguwe bidasanzwe. Byoroshye yego-oya ibizamini bya adhesion bikorwa mugukurura amasaro yibikoresho byakize kuri substrate ivugwa.
Shore-A metero ipima ubukana bwa reberi. Iki gikoresho gisa nuburemere nigipimo gifite ingingo ikanda murugero rwakize. Iyo ingingo yinjiye muri reberi, koroshya reberi no hasi agaciro. Ikidodo gisanzwe cyubwubatsi kizaba kiri hagati ya 15-35.
Uruhu mugihe, reba ibihe byubusa nibindi bipimo bidasanzwe byuruhu bikozwe nurutoki cyangwa nimpapuro za plastike zifite uburemere. Igihe kibanziriza plastiki gishobora gukururwa neza.
Kubuzima bubi, imiyoboro ya kashe irashaje haba mubushyuhe bwicyumba (mubisanzwe bifata umwaka 1 kugirango ugaragaze ko ubuzima bwumwaka 1) cyangwa mubushyuhe bwo hejuru, mubisanzwe 50 ℃ mubyumweru 1,3,5,7 nibindi. Nyuma yo gusaza inzira (umuyoboro wemerewe gukonja mugihe cyihuse), ibikoresho bivanwa mumiyoboro hanyuma bigashushanya mumpapuro aho byemewe gukira. Ibintu bifatika bya reberi byakozwe muriyi mpapuro birageragezwa nka mbere. Iyi mitungo noneho igereranwa nibikoresho bishya byahujwe kugirango umenye ubuzima bukwiye.
Ibisobanuro birambuye kubizamini byinshi bisabwa murashobora kubisanga mu gitabo cya ASTM.
Inama Zanyuma
Igice kimwe cya silicone nicyo kimenyetso cyiza cyane kiboneka. Bafite aho bagarukira kandi nibisabwa byihariye birashobora gutezwa imbere byumwihariko.
Nibyingenzi kugirango umenye neza ko ibikoresho byose byumye byumye bishoboka, formulaire ihamye kandi ko umwuka ukurwa mubikorwa.
Gutezimbere no kwipimisha mubyukuri inzira imwe kumurongo uwo ariwo wose utitaye ku bwoko-justmake neza ko wagenzuye imitungo yose ishoboka mbere yuko utangira gukora ibicuruzwa byinshi kandi ko usobanukiwe neza ibikenewe na porogaramu.
Ukurikije ibyifuzo bisabwa, chimie ikiza irashobora gutoranywa. Kurugero, niba silicone yaratoranijwe kandi impumuro nziza, kwangirika no gufatira hamwe ntibifatwa nkibyingenzi ariko birakenewe igiciro gito, noneho acetoxy ninzira nzira. Ariko, niba ibice byibyuma bishobora kubora birimo cyangwa gufatira bidasanzwe plastike bisabwa mwibara ryihariye ryaka cyane noneho ukeneye oxime.
[1] Dale Flackett. Ibikoresho bya Silicon: Silanes na Silicone [M]. Gelest Inc: 433-439
* Ifoto yo muri OLIVIA Silicone Sealant
Igihe cyo kohereza: Werurwe-31-2024
