Raws li peb txhua tus paub, feem ntau cov tsev yuav tsum muaj lub neej ua haujlwm tsawg kawg yog 50 xyoo. Yog li ntawd, cov ntaub ntawv siv yuav tsum muaj lub neej ua haujlwm ntev. Cov tshuaj silicone sealant tau siv dav hauv kev tiv thaiv dej thiab kaw lub tsev vim nws tiv taus kub thiab txias zoo heev, tiv taus huab cua zoo heev, thiab muaj cov khoom sib txuas zoo. Txawm li cas los xij, tom qab ib lub sijhawm tom qab kev tsim kho, cov xim ntawm cov tshuaj silicone sealant tau dhau los ua teeb meem ntau zaus, uas tawm cov "kab" sai sai rau ntawm cov tsev.
Vim li cas cov kua nplaum silicone hloov xim tom qab siv?
Muaj ntau yam ua rau muaj kev hloov pauv ib nrab lossis tag nrho ntawm cov silicone tunnel sealant lossis cov kua nplaum iav, feem ntau yog nyob rau hauv cov hauv qab no:
1. Kev tsis sib haum ntawm cov khoom siv sib txawv ntawm cov sealant Cov sealant acidic, cov sealant uas muaj cawv tsis muaj zog, thiab cov sealant uas muaj oxime tsis tuaj yeem siv ua ke, vim tias lawv tuaj yeem cuam tshuam rau ib leeg thiab ua rau muaj kev hloov pauv xim. Cov sealant iav uas muaj kua qaub tuaj yeem ua rau cov sealant uas muaj oxime tig daj, thiab kev siv cov sealant iav uas muaj oxime tsis muaj zog thiab cov sealant iav uas muaj cawv tsis muaj zog ua ke kuj tuaj yeem ua rau daj.
Cov molecules tso tawm thaum lub sijhawm kho cov sealant oxime-type neutral, -C=N-OH, tuaj yeem ua rau cov kua qaub los ua cov amino pawg, uas yooj yim oxidized los ntawm oxygen hauv huab cua los ua cov xim, ua rau cov sealant hloov xim.
2. Kev sib cuag nrog roj hmab thiab lwm yam khoom siv
Cov roj hmab silicone sealants yuav tig daj thaum kov ncaj qha rau qee hom roj hmab, xws li roj hmab ntuj, roj hmab neoprene, thiab roj hmab EPDM. Cov roj hmab no siv dav hauv cov phab ntsa thiab qhov rai/qhov rooj ua cov roj hmab strips, gaskets, thiab lwm yam khoom. Qhov kev hloov pauv no yog tus cwj pwm los ntawm qhov tsis sib xws, tsuas yog cov khoom uas kov ncaj qha rau roj hmab tig daj thaum lwm qhov chaw tseem tsis cuam tshuam.
3. Cov xim ntawm cov sealant kuj tseem tuaj yeem tshwm sim los ntawm kev ncab ntau dhau
Qhov teeb meem no feem ntau raug yuam kev hais tias yog vim cov xim poob ntawm cov sealant, uas tuaj yeem tshwm sim los ntawm peb yam tseem ceeb.
1) Cov sealant siv tau dhau nws lub peev xwm hloov chaw thiab qhov sib koom ua ke tau ncab ntau dhau.
2) Qhov tuab ntawm cov sealant hauv qee thaj chaw nyias dhau, ua rau muaj kev hloov pauv xim nyob rau hauv cov cheeb tsam ntawd.
4. Qhov xim ntawm cov sealant kuj tseem tuaj yeem tshwm sim los ntawm tej yam hauv ib puag ncig.
Hom kev hloov xim no feem ntau tshwm sim hauv cov sealant oxime-type neutral, thiab qhov laj thawj tseem ceeb rau kev hloov xim yog qhov muaj cov tshuaj acidic hauv huab cua. Muaj ntau qhov chaw ntawm cov tshuaj acidic hauv huab cua, xws li kev kho cov tshuaj acidic silicone sealant, cov txheej acrylic siv hauv kev tsim kho, cov tshuaj sulfur dioxide ntau hauv huab cua thaum lub caij ntuj no hauv thaj chaw sab qaum teb, hlawv cov khib nyiab yas, hlawv asphalt, thiab ntau ntxiv. Tag nrho cov tshuaj acidic no hauv huab cua tuaj yeem ua rau cov sealant oxime hloov xim.
Yuav ua li cas kom tsis txhob muaj xim ntawm cov silicone sealant?
1) Ua ntej kev tsim kho, ua qhov kev sim sib xws ntawm cov ntaub ntawv uas sib cuag nrog cov sealant kom ntseeg tau tias muaj kev sib xws ntawm cov ntaub ntawv, lossis xaiv cov ntaub ntawv ntxiv uas sib xws dua, xws li xaiv cov khoom siv roj hmab silicone es tsis txhob siv cov khoom siv roj hmab kom txo qhov muaj feem yuav daj.
2) Thaum lub sijhawm tsim kho, cov tshuaj nplaum tsis sib xyaw yuav tsum tsis txhob sib cuag nrog cov tshuaj nplaum kua qaub. Cov tshuaj amine uas tsim los ntawm kev lwj ntawm cov tshuaj nplaum tsis sib xyaw tom qab ntsib cov kua qaub yuav oxidize hauv huab cua thiab ua rau muaj xim av.
3) Tsis txhob kov lossis raug cov sealant rau cov chaw muaj corrosive xws li acids thiab alkalis.
4) Feem ntau cov xim ploj ntawm cov khoom uas muaj xim dawb, dawb, thiab pob tshab. Kev xaiv cov tshuaj sealant tsaus lossis dub tuaj yeem txo qhov kev pheej hmoo ntawm kev ploj ntawm cov xim.
5) Xaiv cov sealants nrog kev lav zoo thiab lub koob npe nrov zoo-JUNBOND.
Lub sijhawm tshaj tawm: Tsib Hlis-22-2023