Q1.Iyini imbangela yokuthi i-silicone sealant engabonakali ne-neutral iphenduke ibe phuzi?

Impendulo:

Ukuphuzi kwe-silicone sealant esobala neutral kubangelwa amaphutha ku-sealant uqobo, ikakhulukazi ngenxa ye-ejenti yokuxhumanisa kanye ne-thickener ku-neutral sealant. Isizathu ukuthi lezi zinto ezimbili zokusetshenziswa ziqukethe "amaqembu e-amino", asengozini kakhulu yokuba phuzi. Ama-silicone sealant amaningi adumile angenisiwe nawo analesi simo sokuba phuzi.

Ngaphezu kwalokho, uma i-silicone sealant ekhanyayo nengacacile isetshenziswa ngesikhathi esifanayo ne-acetic silicone sealant, ingabangela ukuthi i-neutral sealant ibe phuzi ngemva kokuqina. Kungase futhi kubangelwe isikhathi eside sokugcina se-sealant noma ukusabela phakathi kwe-sealant ne-substrate.

I-OLV128 Transparent Neutral Silicone Sealant

Q2.Kungani umbala omhlophe we-silicone sealant ongathathi hlangothi ngezinye izikhathi uphenduka ube pinki? Esinye isivalo siphenduka sibe mhlophe ngemva kwesonto siphelile?

Impendulo:

I-alkoxy cured type neutral silicone sealant ingaba nalesi simo ngenxa yokwenziwa kwezinto zokusetshenziswa kwe-titanium chromium compound. I-titanium chromium compound ngokwayo ibomvu, futhi umbala omhlophe we-sealant utholakala nge-titanium dioxide powder ku-sealant esebenza njengombala.

Kodwa-ke, i-sealant iyisithako sezinto eziphilayo, futhi iningi lemiphumela yamakhemikhali ephilayo iyaguquguquka, kube nokusabela okungekuhle. Ukushisa kuyisihluthulelo sokubangela lokhu kusabela. Lapho izinga lokushisa liphezulu, kuvela ukusabela okuhle nokubi, okubangela ukushintsha kombala. Kodwa ngemva kokuba izinga lokushisa lehlile futhi lizinzile, ukusabela kuyashintsha futhi umbala ubuyela esimweni sawo sokuqala. Ngobuchwepheshe obuhle bokukhiqiza kanye nobuchwepheshe befomula, lesi simo kufanele sigwenywe.

Umbuzo 3.Kungani umkhiqizo othile we-sealant obonakalayo wasekhaya uphenduka umbala omhlophe ngemva kwezinsuku ezinhlanu zokusetshenziswa? Kungani i-sealant eluhlaza engathathi hlangothi iphenduka umbala omhlophe ngemva kokusetshenziswa?

Impendulo:

Lokhu kufanele futhi kubhekwe nenkinga yokukhethwa kwezinto zokusetshenziswa kanye nokuqinisekiswa. Eminye imikhiqizo ye-sealant esobala yasekhaya iqukethe ama-plasticizer alula ukuguquguquka, kanti eminye iqukethe ama-filler aqinisayo kakhulu. Lapho ama-plasticizer eshintshashintsha, i-sealant iyancipha futhi yeluleke, iveze umbala wama-filler (zonke izi-fillers ezikwi-neutral sealant zinombala omhlophe).

Ama-sealant anombala enziwa ngokufaka ama-pigment ukuze azenze zibe nemibala ehlukene. Uma kunezinkinga ngokukhetha i-pigment, umbala we-sealant ungashintsha ngemva kokusetshenziswa. Ngaphandle kwalokho, uma ama-sealant anombala esetshenziswa kancane kakhulu ngesikhathi sokwakhiwa, ukuncishiswa okungokwemvelo kwe-sealant ngesikhathi sokulungiswa kungabangela umbala ukuba ukhanye. Kulesi simo, kunconywa ukugcina ubukhulu obuthile (ngaphezu kuka-3mm) lapho kusetshenziswa i-sealant.

Ishadi Lombala lika-Olivia

Q4.Kungani kuvela amabala noma iminonjana esibukweni ngemva kokusebenzisa i-silicone sealant ngemuva kwe-aisikhathi?

Impendulo:

Ngokuvamile kunezinhlobo ezintathu zokumboza ngemuva kwezibuko emakethe: i-mercury, isiliva elihlanzekile, kanye nethusi.

Ngokuvamile, ngemva kokusebenzisa i-silicone sealant ukufaka izibuko isikhathi esithile, ubuso besibuko bungaba namabala. Lokhu kuvame ukubangelwa ukusebenzisa i-acetic silicone sealant, ephendula ngezinto ezishiwo ngenhla futhi ibangele amabala ebusweni besibuko. Ngakho-ke, sigcizelela ukusetshenziswa kwe-neutral sealant, ehlukaniswe ngezinhlobo ezimbili: i-alkoxy ne-oxime.

Uma isibuko esisekelwe ngethusi sifakwe nge-oxime neutral sealant, i-oxime izoyidla kancane into yethusi. Ngemva kwesikhathi sokwakhiwa, kuzoba namamaki okugqwala ngemuva kwesibuko lapho kufakwa khona i-sealant. Kodwa-ke, uma kusetshenziswa i-alkoxy neutral sealant, lesi simo ngeke senzeke.

Konke okungenhla kungenxa yokukhethwa okungafanele kwezinto ezisetshenziswayo okubangelwa ukuhlukahluka kwezingxenye ezisetshenziswayo. Ngakho-ke, kunconywa ukuthi abasebenzisi benze ukuhlolwa kokuhambisana ngaphambi kokusebenzisa i-sealant ukuze babone ukuthi i-sealant iyahambisana yini nezinto ezisetshenziswayo.

Q5.Kungani ezinye izivalo ze-silicone zibonakala njengezinhlayiya ezinobukhulu obufana namakristalu kasawoti uma zisetshenziswa, futhi kungani ezinye zalezi zinhlayiya zincibilika zodwa ngemva kokuqiniswa?

Impendulo:

Lokhu kuyinkinga ngefomula yezinto zokusetshenziswa ezisetshenziswa ekukhetheni i-silicone sealant. Amanye ama-silicone sealant aqukethe ama-cross-linking agents angakhazimula emazingeni okushisa aphansi, okwenza i-cross-linking agent iqine ngaphakathi kwebhodlela lokunamathisela. Ngenxa yalokho, lapho i-adhesive ikhishwa, ama-granule afana nosawoti anobukhulu obuhlukahlukene angabonakala, kodwa azoncibilika kancane kancane ngokuhamba kwesikhathi, okwenza ama-granule anyamalale ngokuzenzakalelayo ngesikhathi sokuqina. Lesi simo asinawo umthelela omkhulu ekhwalithini ye-silicone sealant. Imbangela eyinhloko yalesi simo umthelela omkhulu wamazinga okushisa aphansi.

I-Olivia silicone sealant inobuso obubushelelezi

Umbuzo 6.Yiziphi izizathu ezingaba khona zokuthi kungani i-silicone sealant ekhiqizwe ekhaya esetshenziswa engilazini ingapholi ngemva kwezinsuku eziyi-7?

Impendulo:

Lesi simo sivame ukwenzeka uma kubanda.

1. I-sealant ifakwa kakhulu, okuholela ekuqineni kancane.

2. Indawo yokwakha ithintwa yisimo sezulu esibi.

3. I-sealant iphelelwe yisikhathi noma inephutha.

4. I-sealant ithambile kakhulu futhi izwakala ingakwazi ukwelapha.

Umbuzo 7.Iyini imbangela yamabhamuza avelayo lapho kusetshenziswa imikhiqizo ethile ye-silicone sealant ekhiqizwe ekhaya?

Impendulo:

Kungaba nezizathu ezintathu ezingaba khona:

1. Ubuchwepheshe obubi ngesikhathi sokupakisha, okubangela ukuthi umoya uvaleleke ebhodleleni.

2. Abakhiqizi abambalwa abangenaso isimilo ngamabomu abaqinisi isivalo sangaphansi sethubhu, beshiya umoya ethubhuni kodwa benikeza umuzwa womthamo owanele we-silicone sealant.

3. Amanye ama-sealant e-silicone akhiqizwe ekhaya aqukethe ama-filler angasabela ngamakhemikhali ngepulasitiki ethambile ye-PE yepayipi lokupakisha le-silicone sealant, okwenza ipayipi lepulasitiki livuvuke futhi likhuphuke ukuphakama. Ngenxa yalokho, umoya ungangena esikhaleni esingaphakathi kwepayipi bese ubangela izikhala ku-silicone sealant, okuholela ekuzwakaleni kwama-bubbles ngesikhathi sokusetshenziswa. Indlela ephumelelayo yokunqoba lesi simo ukusebenzisa iphakethe lepayipi nokunaka indawo yokugcina umkhiqizo (ngaphansi kuka-30°C endaweni epholile).

U-Olivia Workshop

Q8.Kungani ezinye izivalo ze-silicone ezingathathi hlangothi ezifakwa lapho kuhlangana khona uhlaka lwamafasitela ekhonkrithi nensimbi zakha amabhamuza amaningi ngemva kokuqina ehlobo, kanti ezinye azikwenzi lokho? Ingabe kuyinkinga yekhwalithi? Kungani izinto ezifanayo zingazange zenzeke ngaphambili?

Impendulo:

Izinhlobo eziningi ze-silicone sealant engathathi hlangothi ziye zabhekana nezimo ezifanayo, kodwa empeleni akuyona inkinga yekhwalithi. Ama-sealant angathathi hlangothi afika ngezinhlobo ezimbili: i-alkoxy ne-oxime. Futhi ama-sealant e-alkoxy akhipha igesi (i-methanol) ngesikhathi sokuqina (i-methanol iqala ukuhwamuka cishe ku-50℃), ikakhulukazi uma ivezwa elangeni eliqondile noma emazingeni okushisa aphezulu.

Ngaphezu kwalokho, ozimele befasitela bekhonkrithi nensimbi abangeni kakhulu emoyeni, futhi ehlobo, lapho amazinga okushisa aphezulu kanye nomswakama, i-sealant iphola ngokushesha. Igesi ekhishwa ku-sealant ingaphuma kuphela ongqimbeni lwe-sealant olupholishwe kancane, okubangela ukuthi kuvele amabhamuza anobukhulu obuhlukene ku-sealant epholishwe. Kodwa-ke, i-oxime neutral sealant ayikhiphi igesi ngesikhathi senqubo yokupholisa, ngakho-ke ayikhiqizi amabhamuza.

Kodwa ububi be-oxime neutral silicone sealant ukuthi uma ubuchwepheshe kanye nokwakheka kungaphathwa kahle, kungase kunciphe futhi kuqhekeke ngesikhathi senqubo yokulungisa uma kubanda.

Esikhathini esidlule, izenzakalo ezifanayo azizange zenzeke ngoba ama-silicone sealant ayengavamile ukusetshenziswa ezindaweni ezinjalo ngamayunithi okwakha, futhi izinto zokuvala ezingangeni manzi ze-acrylic zazivame ukusetshenziswa esikhundleni salokho. Ngakho-ke, isenzakalo sokuqhumisa ku-silicone neutral sealant sasingavamile kakhulu. Eminyakeni yamuva nje, ukusetshenziswa kwama-silicone sealant kuye kwanda kancane kancane, okuthuthukisa kakhulu izinga lekhwalithi yobunjiniyela, kodwa ngenxa yokungaqondi izici zezinto, ukukhethwa kwezinto okungafanele kuholele esenzekeni sokuqhumisa ama-sealant.

Q9.Ungenza kanjani ukuhlolwa kokuhambisana?

Impendulo:

Empeleni, ukuhlolwa kokuhambisana phakathi kwezinamathiseli kanye nezinto zokwakha kufanele kwenziwe yiminyango yokuhlola izinto zokwakha eyaziwayo kazwelonke. Kodwa-ke, kungathatha isikhathi eside futhi kubize kakhulu ukuthola imiphumela ngale minyango.

Kumaphrojekthi adinga ukuhlolwa okunjalo, kuyadingeka ukuthola umbiko wokuhlola ofanelekile ovela esikhungweni sokuhlola esigunyaziwe sikazwelonke ngaphambi kokunquma ukuthi uzosebenzisa yini umkhiqizo othile wezinto zokwakha. Kumaphrojekthi ajwayelekile, i-substrate inganikezwa umenzi we-silicone sealant ukuze ahlolwe ukuhambisana. Imiphumela yokuhlola ingatholakala cishe ezinsukwini ezingu-45 ze-silicone sealant yesakhiwo, kanye nezinsuku ezingu-35 ze-silicone sealant engathathi hlangothi ne-acetic.

Igumbi lokuhlola ukuhambisana kwesakhiwo se-sealant

Q10.Kungani i-acetic silicone sealant ihlubuka kalula kusimende?

Impendulo: Ama-sealant e-silicone e-acetic akhiqiza i-asidi ngesikhathi sokuqina, esabela ebusweni bezinto ze-alkaline ezifana nesamente, imabula, ne-granite, yakha into efana ne-chalk enciphisa ukunamathelana phakathi kwe-adhesive kanye ne-substrate, okwenza i-acid sealant ihlubuke kalula kusimende. Ukuze ugweme lesi simo, kubalulekile ukusebenzisa i-neutral noma i-oxime adhesive efanelekela ama-alkaline substrate ukuze kuvalwe futhi kuboshwe.