Ukuqonda Izakhiwo Ze-Neutral Silicone Sealants

Ama-Silicone sealants asephenduke into ebaluleke kakhulu ezimbonini ezahlukahlukene ngenxa yezakhiwo zawo ezinhle kakhulu zokuvala nokubopha. Phakathi kwezinhlobo eziningi zama-silicone sealants atholakalayo, ama-silicone sealants angathathi hlangothi agqama ngenxa yokuguquguquka kwawo, ukuqina, nokuhambisana nezinhlobonhlobo zezinto. Kungakhathaliseki ukuthi umatasa nokwakha, ukulungisa izimoto, noma ukukhiqiza idivayisi ye-elekthronikhi, ukuqonda izici ezihlukile zama-silicone sealant kungathuthukisa kakhulu ikhwalithi nempilo ende yephrojekthi yakho. Kulesi sihloko, sizohlola izici eziyisisekelo zama-silicone sealants angathathi hlangothi ukuze sikusize wenze izinqumo ezinolwazi lapho ukhetha futhi usebenzisa lezi zinto.

Ukubunjwa Kwamakhemikhali kanye Nenqubo Yokuphulukisa Yama-Neutral Silicone Sealants

Ama-silicone sealant angathathi hlangothi aqanjwe ngendlela yawo yokwelapha, esebenza ngaphandle kokukhipha i-acetic acid phakathi nenqubo yokwelapha, ngokungafani nozakwabo abane-acidic. Inqubo yokwelapha yama-silicone sealant angathathi hlangothi ihlanganisa ukusabela komswakama emoyeni ngamaqembu athile amakhemikhali ku-sealant, ngokuvamile amaqembu e-oxime noma e-alkoxy, ukuze akhe inethiwekhi ye-polymer eqinile nenwebekayo. Le ndlela yokwelapha engathathi hlangothi iholela ekunukeni okuncane futhi inciphisa ngokuphawulekayo amathuba okugqwala noma ukulimala kwama-substrates azwelayo.

Ukwakheka kwamakhemikhali kwama-silicone sealants angathathi hlangothi ngokuyinhloko kuhlanganisa ama-polymers e-polydimethylsiloxane ahlanganiswe nama-agent axhumanisa ama-cross-link nama-filler anquma izici zawo zemishini. Ngenxa yokwelapha kwawo okungathathi hlangothi, la ma-sealants angasetshenziswa ngokuphepha ezinsimbi, ingilazi, ukhonkolo, nezinto eziningi zepulasitiki ngaphandle kokudala ukuwohloka. Lokhu kubenza babe yigugu ikakhulukazi ezinhlelweni zokusebenza lapho ukuhambisana kwezinto kubalulekile.

Izinga lokuphulukisa kanye nokusebenza kukonke kuncike ezicini zemvelo ezifana nomswakama nezinga lokushisa, okwenza kube lula ukusabela kokwelapha okwenziwe umswakama. Uma seselaphekile ngokugcwele, i-sealant yenza irabha ye-silicone eguquguqukayo futhi eqinile egcina izakhiwo zayo phezu kwamazinga okushisa ahlukahlukene kanye nezimo zemvelo. Ukwengeza, ama-silicone sealant okwelapha angathathi hlangothi ngokuvamile aneshalofu lesikhathi eside futhi agcina ukusebenza kwawo isikhathi eside kunezinye izindlela ze-acetoxy-cure (acidic).

Ukuqonda imvelo yamakhemikhali nokwelashwa kokuziphatha kwama-silicone sealant kusiza ochwepheshe bakhethe umkhiqizo ofanele ukuze bawusebenzise kahle, baqinisekise ukunamathela okufanele, ukuguquguquka, nokuphila isikhathi eside.

Izakhiwo zokunamathela kanye nokuhambisana nama-substrates ahlukene

Enye yezinzuzo ezibaluleke kakhulu zama-silicone sealant ukunamathela kwawo okuhle kakhulu ku-spectrum ebanzi yezinto ngaphandle kokuphazamisa ubuqotho be-substrate. Leli zinga eliphakeme lokuhambisana lisukela ekhemistry yabo yokwelapha engathathi hlangothi, eqeda izingozi zokugqwala okuvame ukuhlotshaniswa ne-acetic acid ekhishwa ngesikhathi sokwelashwa kwezinsimbi ezine-asidi.

Ama-silicone sealant angathathi hlangothi anamathela ngempumelelo endaweni yensimbi efana ne-aluminium, insimbi, nensimbi engagqwali, okuzenza zilungele ukusetshenziswa ekwakhiweni nasekufakweni kwezimoto lapho amalunga ensimbi edinga ukuvikelwa kumswakama nokuchayeka kwemvelo. Ukwengeza, ngenxa yemvelo yawo engagqwali, zifaneleka kahle izinhlelo zokusebenza ezihlanganisa izinsimbi ezizwelayo noma ezimboziwe ezingase zisabele kabi ezintini ezine-asidi.

I-Glass ingenye i-substrate evamile lapho ama-silicone sealants angathathi hlangothi ehamba phambili. Amandla abo okubopha okuhle kakhulu, ahlanganiswe nokuguquguquka, avumela ukuba bavumelane nokwandiswa nokufinyela kwamaphaneli engilazi okubangelwa ukushintsha kwezinga lokushisa. Lokhu kubenza babaluleke kakhulu ezinhlelweni ezicwebezelayo, ukufakwa kwamafasitela, nokuvala uphawu lwengilazi olungaphambili lwengilazi.

Ngaphezu kwalokho, lezi zinsimbi zihlangana kahle nokhonkolo, izitini, ukhonkolo, namapulasitiki ahlukahlukene njenge-PVC ne-polycarbonate. Lokhu kuhambisana okubanzi kwe-substrate kwandisa ukusetshenziswa kwabo ekuvaleni amalunga ezimvilophini zokwakha, amagumbi okugeza, amakhishi, ngisho nama-electronic asembles. Kodwa-ke, nakuba ngokuvamile ehambisana namapulasitiki amaningi, kubalulekile ukuqinisekisa ukuhambisana nokuqedwa kopende okuthile noma izindawo zokhuni ezinganakiwe, njengoba okunye ukuhlukahluka kwama-silicone sealant kungase kuhlanganyele ngendlela ehlukile kuye ngokwakhiwa.

Ukusebenza kokunamathela kwama-silicone sealants angathathi hlangothi kubuye kuthuthukiswe yizindawo zabo zokumanzisa ezinhle kakhulu, ezenza izinto ezisetshenziswayo zisabalale ngokulinganayo phezu kwezindawo, zigcwalise izikhala futhi zinikeze izimpawu ezingangeni moya nezingangeni manzi. Lesi sakhiwo sibalulekile ekuvimbeleni ukungena kwamanzi, uthuli, nomoya, ngaleyo ndlela kuthuthukiswe ukusebenza kahle kwamandla ezakhiweni nokuvikela amathuluzi noma izingxenye ezibucayi.

Ukuqina Nokumelana Nesimo Sezulu Kwama-Silicone Sealants Amaphakathi

Ukuqina kanye nokumelana nesimo sezulu yizici ezibalulekile zanoma iyiphi i-sealant esetshenziswa ekwakheni nasezintweni ezihlukahlukene zezimboni. Ama-silicone sealant angathathi hlangothi adume ngokusebenza kwawo okukhethekile ezimeni zemvelo ezinzima, okuwenza abe yinketho ekhethwayo yemisebenzi yokuvala ngaphandle nokuchayeka kakhulu.

Esinye sezici ezibalulekile ezinomthelela ekuqineni kwazo yikhono lazo lokumelana nokuguquguquka okukhulu kwezinga lokushisa. Ngokungafani nama-sealant amaningi asuselwa kuzinto eziphilayo, ama-silicone angathathi hlangothi agcina ukunwebeka nokunamathela kwawo kusukela ezimeni ezibandayo ezibandayo kuya ekushiseni okunamandla, ngokuvamile abekezelelwa ezinhlotsheni ezisuka ngaphansi kwezingaqhwa kuya kwezingu-200 degrees Celsius. Lokhu kuzinza kwe-thermal kuqinisekisa ukuthi ama-seal awaqhekeki, ancipha, noma awalahleki ukunamathela ngokuhamba kwesikhathi, kunciphisa izidingo zokulondolozwa.

Ngaphezu kokumelana nokushisa, ama-silicone sealants angathathi hlangothi akhombisa ukumelana okuvelele emisebeni ye-UV kanye nokuchayeka kwe-ozone. Le khwalithi ibalulekile ezinhlelweni zokusebenza ezichayeke elangeni isikhathi eside. Nakuba amanye ama-sealant angase alulazeke noma aphuzi lapho echayeke elangeni elibukhali, ama-silicone sealant agcina izici zawo ezingokomzimba nokubukeka isikhathi eside, okunikela ekuphileni isikhathi eside kophawu nokugcina ikhwalithi yobuhle bendawo evaliwe.

Ngaphezu kwalokho, lezi zinsimbi zinikeza ukumelana okuhle kakhulu nomswakama, amakhemikhali, nokungcola kwemvelo. Imvelo yabo ye-hydrophobic ivimbela ukungena kwamanzi, okungabangela umonakalo noma ukukhula kwesikhunta, ikakhulukazi emajoyini wokwakha kanye nezicelo zokuhlanzeka. Ukumelana namakhemikhali kuvikela futhi i-sealant ekuwohlokeni ekuchayekeni kuma-ejenti okuhlanza, uwoyela, namanye amakhemikhali ezimboni.

Uma isetshenziswe kahle, ama-silicone sealant angathathi hlangothi akha umgoqo oqinile, oguquguqukayo obekezelela izinselele zombili izimo zezulu zemvelo nokuchayeka kwamakhemikhali. Lokhu kwethembeka kunciphisa amathuba okulungisa noma ukushintshwa, okunikeza ukonga izindleko nokuphepha okuthuthukisiwe kwezakhiwo ezivaliwe noma izingxenye.

Ukuguquguquka kanye Nezimpawu Zokusebenza Kwemishini

Ama-silicone sealant amaphakathi aziswa kakhulu ngenxa yokuguquguquka kwawo, okuyisibaluli esibalulekile ezinhlelweni eziningi eziguquguqukayo lapho ukunyakaza, ukudlidliza, noma ukunwetshwa kokushisa kungathinta ubuqotho bezimpawu. Imvelo yabo ye-elastomeric ibenza bakwazi ukumunca izingcindezi ngaphandle kokulahlekelwa ukunamathela noma ukubangela ukwehluleka kwemishini.

Ukuvumelana nezimo kwama-silicone sealant angathathi hlangothi kuvela kumgogodla we-silicone polymer, okubanikeza ukuthungwa kwerabha okunwebeka kakhulu uma seselaphekile. Lokhu kunwebeka kuvumela i-sealant ukuthi ilule, icindezele, futhi ibuyele esimweni sayo sangempela ngokuphindaphindiwe, ivumela ukunyakaza okuhlangene kuze kufike ku-20% noma ngaphezulu ekwakhiweni okuningi. Ngenxa yalokho, ama-silicone sealant angathathi hlangothi alungele ukuvala amalunga okunweba emabhulohweni, kuma-facade, nezinye izakhiwo ezihlangabezana nokunyakaza okuvamile okushisayo noma kwemishini.

Esinye isici esibalulekile sokusebenza kwe-sealant amandla aqinile kanye nobude be-sealant ngesikhathi sekhefu, okulinganisa ukuthi kungakanani ukucindezeleka okungabekezelela ngaphambi kokuba ihluleke nokuthi inganwebeka kangakanani, ngokulandelana. Ama-silicone sealant amaphakathi ngokuvamile abonisa amaphesenti amade aphezulu, kwesinye isikhathi adlula u-500%, abonisa amandla awo okugogeka ngaphandle kokuqhekeka noma ukuqaqa. Lo mthamo uvikela ilunga elivaliwe ekunyakazeni kwesakhiwo, ukudlidliza, noma amashifu okulungisa.

Ukwengeza, lawa ma-sealants abambelela kahle ngaphansi kwengcindezi futhi agcina amandla awo okuvala ngisho nalapho engaphansi kokunyakaza kwama-cyclic noma ukukhathala kwemishini. Lokhu kuqina kubaluleke kakhulu ezinhlelweni zezimoto noma zikagesi lapho izingxenye zinganyakaza noma zidlidlize phakathi nokusebenza.

Ukuqina kwama-silicone sealant angathathi hlangothi nakho kuwenza amelane nokudabuka noma ukuhuzuka, okubavumela ukuthi banikeze ukuvala isikhathi eside ngisho nasezindaweni ezingaphansi kokuguga ngokomzimba noma umthelela. Ikhono lazo lokugcina ukusebenza kwemishini phezu kwebanga lokushisa elibanzi lihambisana nakakhulu nokuvumelana nezimo, liqinisekisa ukuvaleka kwamalungu okuhlala isikhathi eside kuzo zombili izilungiselelo zangaphakathi nezangaphandle.

Amasu Okufaka Isicelo kanye Nemikhuba Engcono Kakhulu Yokusebenzisa Ama-Silicone Sealants

Amasu okusebenzisa afanelekile abalulekile ekuthuthukiseni ukusebenza kwama-silicone sealant angathathi hlangothi. Nakuba lezi zinsimbi zisebenziseka kalula futhi ziguquguquka, ukuzuza ukwelashwa okufiswayo, ukunamathela, nokuqina kuncike kakhulu ekulungiseleleni nasekusebenziseni izindlela.

Ngaphambi kokufaka ama-silicone sealant angathathi hlangothi, indawo engaphezulu kufanele ihlanzeke, yome, futhi ingabi nothuli, amafutha, noma izinsalela ze-sealant ezindala. Ukuhlanza ngezincibilikisi ezifanele nokuqinisekisa ukuthi i-substrate ayibonakali imanzi kubaluleke kakhulu ngoba amazinga omswakama athinta inqubo yokwelapha kanye nekhwalithi yokunamathela.

Ukusebenzisa i-primer kungase kudingeke noma kungadingeki kuye ngokuthi i-substrate kanye nokwakhiwa kwe-sealant. Ezindaweni ezinezimbobo noma eziyinselele njengokhuni olungalungiswanga noma amapulasitiki athile, ukusebenzisa i-primer ehambisanayo kusiza ukuthuthukisa ukunamathela nokuvimbela ukwehluleka kwebhondi. Abakhi bavame ukunikeza imihlahlandlela mayelana nokusetshenziswa kokuqala kwama-substrates athile.

Ngesikhathi sokufaka isicelo, ama-silicone sealants angathathi hlangothi avame ukukhishwa kusetshenziswa isibhamu se-caulking, okuvumela ukulawula okunembile phezu kosayizi wobuhlalu nokuqinisekisa ukumbozwa okungaguquki. I-sealant kufanele isetshenziswe ngobuhlalu obuqhubekayo, igcwalise zonke izikhala kanye nama-voids ngokulinganayo. Kuyazuzisa ukusebenzisa i-sealant ngokushesha ngemva kokufaka isicelo usebenzisa i-spatula noma ithuluzi elifanayo ukuze bushelelezi ubuso nokuqinisekisa ukuthintana okufanele ne-substrate, okuthuthukisa ukunamathela nokubukeka.

Kubalulekile ukugcina izimo ezifanelekile zendawo, okuhlanganisa izinga lokushisa kanye nomswakama, phakathi nangemuva kokufakwa. Izindawo ezinomswakama ophansi zingase zibambezele isikhathi sokuphulukisa, kuyilapho umswakama owedlulele ungabangela ukuphulukiswa okungalingani noma ukuqina kwendawo. Ukulandela izincomo zesikhathi sokuphulukisa zomkhiqizi kuqinisekisa ukuthi i-sealant ithuthukisa izici zayo ezigcwele zemishini namakhemikhali ngaphambi kokubeka ilunga elivalekile ngaphansi kwengcindezi.

Okokugcina, ukuvikelwa kwe-sealant emonakalweni wemishini noma ukuchayeka kwamakhemikhali phakathi nesigaba sokuphulukisa kubalulekile. Ukumboza ilunga noma ukukhawulela ukufinyelela kuze kube yilapho isivalo selapheke ngokugcwele kungavimbela amaphutha noma ukungcola.

Ngokulandela izinqubo ezingcono kakhulu zokulungiswa kwendawo, ukusetshenziswa, kanye nokwelapha, abasebenzisi bangakhulisa izinzuzo ezihlinzekwa ama-silicone sealant angathathi hlangothi, aqinisekise ama-seal aqinile, ahlala isikhathi eside, futhi abukekayo.

Sengiphetha, ama-silicone sealants angathathi hlangothi anikeza inhlanganisela enamandla yokuzinza kwamakhemikhali, ukuhambisana kwe-substrate, ukuguquguquka, nokuqina. Ikhemikhali yabo yokwelapha engathathi hlangothi ivumela ukusetshenziswa okuphephile ezintweni ezizwelayo, kuyilapho ukumelana kwabo okuphawulekayo nokushisa okweqile, ukuchayeka kwe-UV, kanye nokucindezeleka komshini kubenza babe yigugu ezinhlelweni eziningi zezimboni nezokwakha. Ngokuqonda lezi zakhiwo nokusebenzisa amasu afanele, ochwepheshe bangasebenzisa amandla aphelele ama-silicone sealant angathathi hlangothi ukuze bathole izimpawu ezihlala isikhathi eside nezisebenza kakhulu.

Sekukonke, lesi sihloko sigqamise izimfanelo ezibalulekile nokucatshangelwa okuhilelekile ekukhetheni nasekusebenziseni ama-silicone sealant angathathi hlangothi. Kusukela ekwakhekeni kwamakhemikhali nasekuziphatheni kokwelapha kuye ekusebenzeni kwemishini enemininingwane namathiphu okusebenza angokoqobo, ukuqonda lezi zingxenye kuhlomisa abakhiqizi, abakhi, nabashisekeli be-DIY ngokufanayo ukwenza ukukhetha okuhlakaniphile, ukwehlisa ukwehluleka, nokuthuthukisa ukusebenza kahle kwamaphrojekthi abo okuvalwa. Ngokuthuthuka okuqhubekayo kukhemikhali ye-silicone, ikusasa liphethe amandla amakhulu nakakhulu alezi zinto ezisebenza ngezindlela ezihlukahlukene kulo lonke uhla olukhulayo lwezimboni.