Njengoko sonke sazi, izakhiwo ngokubanzi kulindeleke ukuba zibe nobomi benkonzo ubuncinci iminyaka engama-50. Ke ngoko, izixhobo ezisetyenzisiweyo kufuneka zibe nobomi benkonzo ende. I-Silicone Sealant isetyenziswe ngokubanzi kwintsimi yokwakha amanzi kunye nokutywina ngenxa yokutyholwa kwamaqondo obushushu aphezulu kunye nophantsi, ukunganyangeki kwemozulu ebalaseleyo, kunye neepropathi ezinobunzima bezinto ezinobunzima. Nangona kunjalo, emva kwexesha lexesha emva kokwakhiwa, ukuguqulwa kwe-Silicone Sealant iye yaba ngumcimbi oqhelekileyo, oshiya imigca "yezakhiwo" kwizakhiwo.
Kutheni le nto isilicone iglue itshintsha imibala emva kokusetyenziswa?
Zininzi izizathu zokungqinelana okanye ukugcwala ngokupheleleyo kwe-silicone ye-selicone itywina okanye iglasi iglu, ikakhulu kwezi zinto zilandelayo:
1. Ukungahambelani nezinto ezahlukeneyo ze-acidic ze-acidic, izityholo ezingathathi hlatywala, kunye nokungathathi hlangothi lwezityholo ezinqabileyo akunakusetyenziswa kunye, njengoko zinokuchaphazela omnye komnye kwaye zibangele ukufunyanwa. I-acidic ye-acidic ye-acidic inokubangela izityholo ezisekwe kwi-oxime ukuba iphule ityheli, kwaye isebenzisa ukungathathi hlangothi kunye neglasi yeglasi engathathi hlangothi kunye neglasi yeglasi etywiniweyo.
Iimolekyuli ezikhutshwe ngexesha lokunyangwa kweendawo ezingathathi hlangothi-zohlobo lwe-earity, -c = n-oh, zinokusabela nge-oxyning ye-Amino, ekhokelela ekupheliseni itywina letywina.
2. Nxibelelana nerabha kunye nezinye izinto
I-Silicone Ityheli linokujika liphuzi xa kudibana ngqo neentlobo ezithile zerabha, njengerabha yendalo, irabha yerabha yendalo, kunye nerabha ye-EPDM. Ezi ngxobo zisetyenziswa ngokubanzi kwi-furtain yodonga kunye neefestile / iingcango kunye nemigca yerabha, irhasi, kunye nezinye izinto. Olu phawu luphawulwa kukungalingani, ngamalungu kuphela onxibelelwano ngqo kwirabha etyheli ngelixa ezinye iindawo zihlala zingasebenzi
I-3. Ulwahlulo lwetywina olungekatywina lunokubangelwa kukuzolula kakhulu
Le phenononon ihlala ijongwa ngempazamo ukulahleka kombala wetywina, elinokubangelwa zizinto ezintathu eziqhelekileyo.
1) Itywina elisetyenzisiweyo ligqithile kubuchule baso kunye nokudityaniswa koluliweyo kakhulu.
2) Ubungqingqwa bokutywina kwiindawo ezithile buthathaka kakhulu, bukhokelela kwiinguqu zemibala kugxilwe kwezo ndawo.
4. Ukukhala kwetywina kunokubangelwa zizinto zokusingqongileyo.
Olu hlobo lokwaziwa luxhaphake ngakumbi ekungakhethi kolunye izityholo ze-oxime, kwaye esona sizathu sokutshintsha ubukho bezinto ze-acidic emoyeni. Kukho imithombo emininzi ye-acidic ye-acidic emoyeni, njengokunyanga i-acidiclic selic, i-acrylings esetyenziswayo ekwakhiweni, i-sulful ye-sulfur dioxide kwindawo esemantla ngexesha lomhlaba, ivutha i-asphalt, nangaphezulu. Zonke ezi zinto ze-acidic emoyeni zinokubangela iindawo zoncedo ze-ox ox ukuya kwi-disclor.
Ungakuphepha njani ukuguqulwa kwe-silicone?
1) Ngaphambi kokwakha, ukuqhuba uvavanyo lwezinto ekunxibelelaneni neselula yokuqinisekisa ukuhambelana phakathi kwezinto, okanye ukhethe izinto ezinokuqiniseka ngakumbi, njengokukhetha iimveliso zerabha endaweni yerabha.
2) Ngexesha lokwakhiwa, i-hlerly etyhutyweni akufuneki ukuba inxibelelane ne-acid eharland. Izinto ze-Amine eziveliswa kukungalunganga kwetywina lokungathathi hlangothi emva kokudibana ne-acid kuya kunyanzela emoyeni kwaye zibangele ukuba ulwazi.
3) Kulumkele ukunxibelelana okanye ukuveza okwenziwe kwindawo yokutywina kwiindawo ezinokubakho njenge-asidi kunye ne-alkalis.
I-4) I-diviclofation ikakhulu ikwiimveliso ezinomtsalane, ezimhlophe, kunye nezibonakala ezibonakalayo. Ukukhetha izityholo ezimnyama okanye ezimnyama kunokunciphisa umngcipheko wokuqhawuka.
5) Khetha iitywina ezinomgangatho oqinisekisiweyo kunye ne-propation elungileyo-jenbond.
Ixesha lokuphumla: Meyi-22-2023