I-Silicone Sealant vs. Amanye Ama-Sealant: Uyini Umehluko?

Ama-sealant ayizinto ezincane kodwa ezibizayo esakhiweni noma ekubuyiseleni izinto ezinomthelela omkhulu ekukhangekeni, ukuvimbela amanzi, ukuqina, nokusebenza kahle kwamandla. Ukukhetha ifomula engalungile kungabiza kakhulu ukulungisa. Ingase futhi ilethe ukuvuza, imithungo eqhekekile, noma ukuwohloka kwe-coating. Okunye ukwakheka, okuhlanganisa i-acrylic, i-polyurethane, i-MS-polymers eyingxube, ama-epoxies, nama-butyls, aletha izinzuzo ezingokoqobo zezindawo, ukunyakaza, ikhono lokumboza, kanye nezindleko.

Kodwa-ke, i-silicone sealant ivame ukubhekwa njengophawu lobuchwepheshe lokuqina nokunwebeka. Uma ukhuluma nomkhiqizi we-silicone sealant noma umhlinzeki ofana no-Shuode, ungakwazi ukuqhathanisa ama-apula nama-apula ngoba lesi sihloko sixoxa ngokuhlukana kwezobuchwepheshe, sinikeza iseluleko esiwusizo, futhi siqukethe izinombolo zedatha evamile.

Yini eyenza i-Silicone Ihluke: I-Chemistry kanye Nemiphumela Yayo

Ngokungafani namanye ama-sealant amaningi, asekelwe kuma-polymers asekelwe ku-carbon, ama-silicone sealant akhelwe phezu kwe-silicon-oxygen backbone (Si-O-Si). Ama-Silicone anezici ezihlukahlukene zomzimba ezihlukile ngenxa yesibopho se-Si-O:

• Ukukhuthazela okuvelele ku-UV ne-ozone: Ama-Silicone agcina ukunwebeka kwawo futhi abukeka efanelekile isikhathi eside ngaphandle. Lokhu kwenzeka ngoba awonakali njengama-compounds asekelwe ku-carbon.
• Ibanga lokushisa elibanzi elisebenzayo : Ama-silicone amaningi agcina ukuqina kwawo kusukela ngaphansi kwezingaqhwa kuya kumakhulu ambalwa amadigri Fahrenheit. Ezinhlobonhlobo ezithuthukisiwe, ububanzi obujwayelekile bokushisa obuqhubekayo bungu-40°C kuya ku-+176°C (-40°F ukuya ku-+350°F).
• Ukuvumelana nezimo okuhle kakhulu kwezinga lokushisa eliphansi neliphezulu : Ama-Silicone agcina ukunwebeka kwawo nokululama phakathi namashumi eminyaka. Lokhu kubalulekile kumajoyinti ashintshashintsha ngokuphindaphindiwe.
• Izinketho ze-modulus ephansi : Ama-silicone akhethekile (i-ultra-low-modulus) abalulekile ezinhlelweni zengilazi ne-façade ngoba angakwazi ukusekela ukunyakaza okuhlangene okungenani okungu-50% ngaphandle kokudlulisa ingcindezi kuma-substrates.

Esinye sezizathu eziyinhloko abaklami bezakhiwo kanye nonjiniyela be-façade bakhetha i-silicone yezindonga zamakhethini, ama-perimeters amafasitela, nokuxhumeka kwangaphandle izinzuzo zayo zamakhemikhali, ezihumushela impilo yesevisi ende kanye nokugcinwa okuncane ezingxenyeni eziveziwe.

Ishidi Ledatha Yezobuchwepheshe (TDS): Okufanele Ukubheke

Cela Ishidi Ledatha Yezobuchwepheshe (TDS) futhi ubheke le datha engukhiye uma uqhathanisa izimpahla noma ucela amakhotheshini kumkhiqizi we-silicone sealant noma umphakeli. Ithebula ledatha elihlanganisiwe, elimele elivela kuma-silicone glazings athandwayo nemikhiqizo yokuvikela isimo sezulu liboniswa ngezansi; izinombolo ezithile ziyahlukahluka kuye ngokuthi ukwakheka; thintana ne-TDS yomkhiqizi ngamunye.

Qaphela: Izimpahla ezithile (ama-silicone e-structural glazing, ama-silicone ahlanzekile, ama-high-modulus silicones) azoba namanani enziwe ngendlela oyifisayo; ithebula libonisa ububanzi obumele. Engxenyeni ethile yenombolo ohlela ukuyithenga, qhathanisa njalo i-TDS yangempela.

I-Silicone vs. Okunye Okuhlukile

I-Silicone vs. Polyurethane

• Ubude bokuphila kanye ne-UV: Mayelana nomthelela we-UV nokuqina okunwetshiwe, i-silicone idlula i-PU. I-PU ingaba buthakathaka futhi ilahlekelwe ukunwebeka ngemva kwamashumi eminyaka okukhanya kwelanga okuvulekile.
• Amandla nokuhuzuka: I-PU ngokuvamile ibonisa ukumelana nokudonsa okuqinile kokuqala kanye nokuqina okuphezulu ngokumelene nokuguguleka. Lokhu kuyenza isebenziseke kumaseam abhekene nethrafikhi yabahamba ngezinyawo noma imithwalo esindayo.
• Ukupendeka: Nakuba amanye ama-silicone, ama-silicone ayi-hybrid, nama-primers angapendiwa, ama-PU sealant amaningi awakwazi. Ama-MS-hybrids noma ama-PU hybrids angase abe ngcono uma amalunga apendiwe edingeka.
• Ukusetshenziswa nokwelapha: Nakuba ama-silicone (i-neutral-cure) ejwayele ukunamathela kahle, engalungisiwe, kuma-substrates amaningi angenambobo, i-PU ivamise ukudinga i-primer kwamanye ama-substrates futhi iqeda umswakama.

I-Silicone vs. Acrylic

Ukuphila isikhathi eside kwangaphandle: I-Silicone ingcono ngaphandle, kuyilapho ama-acrylics esebenza kangcono ngaphakathi kokunquma okupendiwe noma izikhala ezincane ezinokunyakaza okuncane. I-Acrylic izoshwabana noma iphuke lapho ibhekene nezimo zezulu ezimbi kakhulu.

Ukupenda: Nakuba ama-silicone ngokuvamile eyinselele ukudweba, ama-acrylics apendwe kalula. Uma ukuqeda upende kuyadingeka futhi kukhona ukunyakaza okuhlangene okuncane, sebenzisa i-acrylic.

I-Silicone vs. MS-polymer (hybrid)

• Ibhalansi yezimpawu: Ama-MS-polymers (i-silane eshintshiwe) aphakathi kwe-PU ne-silicone ezicini eziningi, evamise ukuhlinzeka ngokunamathela okuqinile, iphunga eliphansi, ukupendeka, kanye nesimo sezulu esihle. Ziyathandeka uma kudingeka ukupendeka nokunamathela ngokuqinile ezindaweni ezihlukahlukene.

I-Silicone vs. Epoxy / Okunamathelayo kwesakhiwo

• Ukuvumelana nezimo: Ama-epoxies awafanele ukuvala igebe okushintshashintshayo. Kunalokho zelapha ngokuqinile futhi zisetshenziswa lapho umthamo wokugunda wesakhiwo udingeka (isibonelo, lapho unamathisela amashidi ensimbi noma izinhlanganisela). Ama-Silicone ahlinzeka ngokuvikelwa okunwebekayo.

Ukukhetha Umkhiqizo Ofanele We-Silicone

Alikho iqembu elilodwa lama-silicone compounds. Abakhiqizi esikhundleni salokho bakhulula izigaba zemisebenzi ethile:

• I-silicone ye-Sanitary/Bathroom : Ukukhishwa kwe-organic volatile okuphansi (VOC). Ngokuvamile ukwelapha i-acetoxy. Yakhelwe ukumelana nesikhunta nesikhunta.
• I-silicone evikela isimo sezulu engathathi hlangothi : Isetshenziselwa ingaphandle le-facade namaphethelo ozimele. Ivimbela imingcele yensimbi ukuthi ingagqwali.
• I-silicone ecwebezelayo yesakhiwo : Amafomula asebenza kahle kakhulu we-silicone ecwebezelayo enezakhiwo ezilawulwayo zomshini nezokwelapha asetshenziswa engilazini yesakhiwo ecwebezeliswe kumafreyimu. Lezi zivame ukudinga ukusetshenziswa kokuqala nokulawulwa, futhi i-TDS yazo inembile.
• I-silicone yezinga lokushisa eliphezulu : I-silicone yezinga lokushisa eliphezulu idizayinelwe ukuhlangana kwezimboni, ama-gaskets wezinto zikagesi, nama-oven seal.

Ithiphu: Njalo fanisa uhlelo lokusebenza nesigaba somkhiqizo. Ukucwebezela kwesakhiwo akukwazi ukushintshwa nge-silicone yokugezela.

Ukusebenza nomkhiqizi we-Silicone Sealant

Ukuze uqinisekise isinqumo esifundisiwe, cela amasheke alandelayo lapho usondela kumnikezeli we-silicone sealant noma umkhiqizi:

• I-Technical Data Sheet (TDS) ye-SKU enembile : Ziyi-Shore A, amandla anwebekayo, isandiso, ibanga lokunyakaza, umthamo oshisayo, nokuqukethwe okuguquguqukayo kwe-organic (VOC) ku-Technical Information Sheet (TDS) yekhodi ethile.
• I-Material Safety Data Sheet (MSDS/SDS): edingekayo ngokwemibandela yokubhekwa kwemithetho yezempilo nokuvikela, ukugcinwa, nokuphatha okuphephile.
• I-Material Safety Data Sheet (MSDS/SDS): iyadingeka ukuze kugcinwe imithetho yezempilo nokuvikela, ukugcinwa, nokuphatha okuphephile.
• Igayidi yohlelo lokusebenza noma imiyalelo yokufaka: Imanuwali yohlelo lokusebenza noma imiyalelo yokufaka ihlanganisa iziphakamiso zedizayini ezihlanganyelwe (izidingo ze-backer rod, ububanzi/isilinganiso sokujula).
• Uhlu lokunamathela nokuhambisana: Uhlu lwama-substrates okunamathela nokuhambisana adinga ama-primers.
• Iwaranti nokulindela komjikelezo wokuphila womkhiqizo: Amanye ama-silicone ahlinzeka ngokulindelwe ukuqina kweminyaka eyi-10–20 ngokusekelwe endaweni ezungezile.

Cela izifakazelo, amarekhodi ekhwalithi, ukulandeleka kokukhiqiza, futhi, uma kungenzeka, okutholwe elabhorethri okungachemi (izinga le-ASTM C920, imiphumela yokuchayeka kwe-QUV, ukuhlola ukunamathela) uma udinga umphakeli we-silicone sealant ukuze wenze imisebenzi ebalulekile.

Izicelo Ezisebenzayo

• Idizayini ehlanganyelwe: Ukuhlela ngokuhlanganyela kufanele ngokuvamile kulandele isimiso esingu-2:1 sobubanzi ukuya ekujuleni. Uma amalunga ejule kakhulu, isivalo singase singaqini kahle. Uma ingashoni kakhulu, ingase ingakwazi ukunyakaza okwanele. Uma welulekwa, sebenzisa izinduku ezingemuva.
• I-Surface Prep: Hlanza, yome, futhi ulungise indawo engaphezulu uma kunesidingo. Nakuba ama-silicone engakwazi ukunamathela kuma-substrates amaningi angasetshenzisiwe, izindawo ezinamafutha noma ezingcolile zenza uxhumano lube buthaka.
• Ithuluzi: Ukusebenzisa amathuluzi kuthuthukisa ukuhlangana nokuqedwa kwendawo. Kumele kwenzeke ngaphambi kokukhishwa kwesikhumba ukuze kuqinisekiswe ukunamathela okufanele kanye nephrofayili.
• Izimo zokwelapha: Ukufudumala nomswakama kulawula ijubane lokuqina. Ukushisa okuphansi nokomisa kwandisa inqubo. Ukulandelana komsebenzi kufanele kuhlelwe ngendlela efanele.
• Ukupenda nokuqeda: Uma ukupendeka kudingekile, sebenzisa imininingwane yokunquma ukuze ufihle ilunga noma ucacise amahybrids apendwekayo; okunye, qinisekisa ukuhambisana nama-mockups okuhlola nabahlinzeki bepende.

Lapho NGEKE usebenzise i-Silicone

• Uma ukupenda okuhlangene kudingekile, akukho asilicone ependekayo noma okunye okuxubile okugunyaziwe.
• Uma kudingeka ukuqina kwesakhiwo, sebenzisa izinamatheliso zesakhiwo noma i-epoxy.
• Cela amamaki ezokwelapha angathathi hlangothi ezindaweni zangaphakathi lapho izinto ezinamathelayo ezinephunga elincibilikayo noma i-acetic off-gassing (i-acetoxy silicones) zingeke zifaneleke eduze nezinto zikagesi ezithambile noma izinsimbi.

Ukusimama, ama-VOC kanye neMithetho

Ama-silicone amaningi athengiswayo njengamanje akhombisa izinto eziphilayo ezincishisiwe (VOCs). Lokhu kubenza bafanelekele ukusetshenziswa endlini ngaphakathi kwezilungiselelo ezinemithetho eqinile yokuhlanzeka komoya. Ngaso sonke isikhathi qinisekisa izindinganiso zokuvumelana ezicashuniwe (njenge-South Coast AQMD thresholds). Futhi, hlola isibalo se-VOC ku-TDS. Buza abathengisi mayelana nokuqina (impilo ende = umthelela ophansi womjikelezo wempilo), ukuhlolwa komjikelezo wempilo, namalebula e-eco kumaphrojekthi anemigomo yokusimama.

Kungani ukhethe u-Shuode

Qinisekisa ukuthi ama-SKU ka-Shuode ahlanganisa amakilasi ohlelo lokusebenza owadingayo (i-sanitary, glazing, weatherproofing, kanye nezinga lokushisa eliphezulu), cela i-TDS ephelele ne-SDS ye-SKU ngayinye, futhi ucele izinkomba noma izifundo zephrojekthi uma uhlola imikhiqizo futhi ucabanga ukusebenzisa i-Shuode njengomkhiqizi we -silicone sealant noma umphakeli. Amabanga omkhiqizo kanye nolwazi lokuxhumana lokucela amadatha edatha obuchwepheshe namasampuli kuyatholakala kuwebhusayithi kaShuode . Ngaphambi kokuyisebenzisa ngezinga elibanzi, hlala ucela futhi uhlole amasampula kuma-substrates akho angempela.

Uhlu Lokuhlola Lokugcina ngaphambi koku-oda

• Thola ama-SKU's' TDS nama-SDS anembile.
• Hlola ukuthi ukushuba, ubude, i-Shore A, namandla okunyakaza ahlangabezana nezicaciso zedizayini.
• Qinisekisa ukuthi indlela yokwelapha engathathi hlangothi noma ye-acetoxy iwafanele yini ama-substrates othintana naye.
• Ukuze uthole ama-substrates abalulekile, cela imiphumela yokuhlolwa kokunamathela noma uhlu lweziqalo eziphakanyisiwe.
• Faka isikhathi sokwelapha ohlelweni bese u-oda indawo ye-mockup/test.

Umugqa Ophansi

Ngokusetshenziswa okuningi okuqinile nangaphandle, i-silicone filler iyisixazululo esikhethiwe. Lokho kungenxa yokunwebeka kwayo okunwetshiwe, ukumelana nokushisa, nokubekezelela kwe-UV. Wonke umsebenzi, nokho, uqukethe ukuvumelana. Ifomula elungile yakhelwe amandla okupenda, ingcindezi yomzimba, impahla engaphezulu, kanye nemikhawulo yezezimali. Sebenzisa ama-database, ama-mockups, nokubonisa ngale kwabahlinzeki ukuze unciphise ubungozi. Ngokuthatha imizuzu embalwa ukufanisa ibanga elifanele le-silicone (noma esikhundleni) kuphrojekthi, ukuthengiswa kabusha okubizayo esikhathini esizayo kungagwenywa. Uma ungabaza, funa iseluleko sohlelo lokusebenza kanye nedatha yokuhlola egxilile kumkhiqizi we-silicone sealant noma umphakeli.