Monga tonse tikudziwira, nyumba zimayembekezeredwa kukhala ndi moyo wosachepera zaka 50. Choncho, zipangizo zomwe zimagwiritsidwa ntchito ziyenera kukhala ndi moyo wautali wautumiki. Silicone sealant yakhala ikugwiritsidwa ntchito kwambiri pantchito yomanga yotsekereza madzi ndi kusindikiza chifukwa cha kukana kwake kutentha kwambiri komanso kutsika, kukana kukalamba kwanyengo, komanso kulumikizana kwabwino. Komabe, pakapita nthawi yomangamanga, kusinthika kwa silicone sealant kwakhala nkhani yanthawi zonse, yomwe imasiya "mizere" mwadzidzidzi panyumba.
Chifukwa chiyani silikoni guluu amasintha mtundu pambuyo ntchito?
Pali zifukwa zambiri zosinthira pang'ono kapena kwathunthu mawonekedwe a silicone tunnel sealant kapena guluu wagalasi, makamaka pazotsatira izi:
1. Kusagwirizana kwa zipangizo zosiyanasiyana zosindikizira Zosindikizira za acidic, zosindikizira za mowa wosalowerera ndale, ndi zosindikizira zamtundu wa oxime sizingagwiritsidwe ntchito palimodzi, chifukwa zimatha kukhudza wina ndi mzake ndikupangitsa kusinthika. Zosindikizira magalasi a acidic zimatha kupangitsa kuti zosindikizira zochokera ku oxime zisinthe kukhala zachikasu, ndipo kugwiritsa ntchito zosindikizira zamagalasi osalowerera ndale komanso osalowerera ndale kungayambitsenso chikasu.
Mamolekyu omwe amamasulidwa panthawi ya kuchiritsa kwa zosindikizira zamtundu wa oxime, -C = N-OH, amatha kuchitapo kanthu ndi ma asidi kuti apange magulu a amino, omwe amapangidwa mosavuta ndi okosijeni mumlengalenga kuti apange zinthu zamitundu, zomwe zimapangitsa kuti chisindikizocho chiwonongeke.
2. Kukhudzana ndi mphira ndi zipangizo zina
Zosindikizira za silicone zimatha kukhala zachikasu zikakumana mwachindunji ndi mitundu ina ya mphira, monga mphira wachilengedwe, mphira wa neoprene, ndi mphira wa EPDM. Ma rabarawa amagwiritsidwa ntchito kwambiri pamakoma a nsalu ndi mazenera / zitseko ngati mizere ya rabara, ma gaskets, ndi zigawo zina. Kusinthika kumeneku kumadziwika ndi kusagwirizana, ndi magawo okhawo omwe amalumikizana mwachindunji ndi mphira amasanduka achikasu pomwe madera ena amakhalabe osakhudzidwa.
3. Kusintha kwamtundu wa sealant kumathanso kuyambitsidwa ndi kutambasula kwambiri
Chodabwitsa ichi nthawi zambiri chimatchedwa molakwika chifukwa cha kutayika kwa mtundu wa sealant, komwe kumatha kuyambitsidwa ndi zinthu zitatu zomwe zimafala.
1) Chosindikizira chomwe chagwiritsidwa ntchito chapitilira luso lake losamuka ndipo cholumikizira chatambasulidwa mopitilira muyeso.
2) Makulidwe a chosindikizira m'malo ena ndi ochepa kwambiri, zomwe zimapangitsa kuti mitundu isinthe kwambiri m'malo amenewo.
4. Kusinthika kwa sealant kumathanso kuyambitsidwa ndi zinthu zachilengedwe.
Mtundu woterewu umakhala wofala kwambiri m'magulu osindikizira amtundu wa oxime, ndipo chifukwa chachikulu chosinthira ndi kukhalapo kwa zinthu za acidic mumlengalenga. Pali magwero ambiri a zinthu za acidic mumlengalenga, monga kuchiritsa acidic silicone sealant, zokutira za acrylic zomwe zimagwiritsidwa ntchito pomanga, kuchuluka kwa sulfure dioxide m'mlengalenga m'nyengo yozizira kumadera akumpoto, kuyatsa zinyalala zapulasitiki, kuyatsa phula, ndi zina zambiri. Zinthu zonsezi za acidic zomwe zili mumlengalenga zimatha kupangitsa kuti zosindikizira zamtundu wa oxime zisinthe.
Kodi mungapewe bwanji kusinthika kwa silicone sealant?
1) Musanamangidwe, chitani mayeso ofananira pazinthu zomwe zikukhudzana ndi chosindikizira kuti muwonetsetse kugwirizana pakati pa zidazo, kapena sankhani zida zowonjezera, monga kusankha zinthu za mphira wa silicone m'malo mwa mphira kuti muchepetse mwayi wachikasu.
2) Pomanga, chosindikizira chosalowerera ndale sichiyenera kukhudzana ndi asidi sealant. Zinthu za amine zomwe zimapangidwa ndi kuwonongeka kwa osalowerera ndale pambuyo pokumana ndi asidi zimakwiyitsa mumlengalenga ndikupangitsa kusinthika.
3) Pewani kukhudzana kapena kukhudzana ndi chosindikizira kumalo owononga monga ma asidi ndi ma alkali.
4) Kusintha kwamtundu kumachitika makamaka muzinthu zowala, zoyera, komanso zowonekera. Kusankha zosindikizira zakuda kapena zakuda zimatha kuchepetsa chiopsezo cha kusinthika.
5) Sankhani zosindikizira zokhala ndi mtundu wotsimikizika komanso mbiri yabwino yamtundu-JUNBOND.
Nthawi yotumiza: May-22-2023