Epoxy utomoni: chida chofunika kumabungwe onse

Epoxy utomoni - mankhwala ndi kukana mkulu zidulo, zapansi ndi halogens. Ndi kupanga oligomer. Thiabendazole angagwiritsidwe ntchito kumata pafupifupi nkhani iliyonse. M'chigawo madzi bwino epoxy utomoni lomwe lili ndi lachikasu lalanje mtundu, ndipo pambuyo kuumitsa amakhala zofiirira ndi pafupifupi otetezeka thanzi. Komabe, ntchito yake pamene pangakhale angathe kukhudzana ndi solvents, Sol-leachable kachigawo zosatheka. M'chigawo madzi ndi poizoni, kotero zake ntchito amafuna kutsatira malamulo.

Kumene, kulumikiza mbale kapena zinthu zina kuti amakhudzana ndi chakudya kapena madzi akumwa, izo sizingakhoze ntchito imeneyi pali zinthu zina. Komabe, chifukwa katundu wawo, epoxy utomoni ndi chida chofunika kwambiri pa mndandanda waukulu kwambiri wa mafakitale. ntchito ziwiri zikuluzikulu za nkhaniyo: monga zomatira ndi impregnation. Mothandizidwa ndi mzimuwo kuteteza motsutsana dzimbiri konkire, zitsulo, amatha kuumba kupanga zomatira zosiyanasiyana, ngakhale mbali yofunika kwambiri pafupifupi nthambi zonse za zomangamanga. Epoxy utomoni ndi fiberglass kuyambira zipangizo za ulimi wa galasi CHIKWANGWANI, amene chimagwiritsidwa ntchito zomangamanga, boat- ndi mafakitale mpweya. Komanso, woyamba ntchito lembani zamagetsi ndipo ngakhale kamangidwe.

Epoxy utomoni ntchito mu tandem ndi hardener a. Kodi kutentha mankhwala osavomerezeka pa chilengedwe zoweta, iwo ntchito zokambirana yaing'ono ozizira mankhwala. Ndipo mankhwala ofunika, oyesa ntchito pa katundu mkulu malo amodzi ndi zazikulu mu mapangidwe zikuwononga - otentha kuchiritsa wothandizira. Pankhaniyi, ndi gululi lolemererapo akhomere mamolekyulu polima. Komanso, pali ndi epoxy utomoni ndi hardeners, apangidwa makamaka kuti zikhalidwe za chinyezi mkulu, mchere madzi.

Kugwira ntchito ndi moyo, iye ayenera kumvetsa kuti pawiri ndi hardener ake ndi anachita exothermic, ndi wamkulu kulemera kwa polima, m'pamenenso kutentha kwaiye. Pa nkhani imeneyi m'pofunika kusankha nambala lamanja la wothandizira, ndi correlate ndi cholinga cha ntchito, chifukwa, ayenera yunifolomu (palibe thovu) olimba. Komanso, zimene utomoni ndi hardener ndi sizingasinthe, ndipo kenako thermoset, mosiyana thermoplastic sangathe kusungunula kapena kupasuka kwa rework chifukwa. Ambiri ndi angakwanitse zipangizo akuchiritsa zipangizo epoxy tsopano amaonedwa PEPA, DETA, TETA, TEPA ndi №1 (hexamethylene diamine kusungunuka ethyl mowa). Chifukwa chakuti ochiritsira ziwiri zikuluzikulu pawiri - chinthu m'malo zosalimba, elasticity yake kuchuluka powonjezera chigawo china. mchitidwe limeneli limatchedwa "amadza modifier", mwina ndi osiyana mipweya, ndipo malingana ndi izi, ndi makhalidwe ena. akatswiri woona apeza zipangizo kuti ndi mphamvu kuchita zonse monga hardener, ndipo ndi modifier amadza.