Hydroxide yoyambirira ya aluminiyamu imatchedwanso ufa wa mchere wachilengedwe, zomwe zili m'zigawo zitatuzi zimakhalanso ndi gawo lalikulu. Mu miyala yopangira yabwino, zomwe zili mkati mwake zimakhala ndi 30%. Ndi polyester resin ngati maziko, kenako onjezerani aluminiyamu hydroxide ndi utoto woteteza chilengedwe, zimapangitsa kuti pamwamba pa miyala yopangira pakhale wolimba kwambiri, mzere waukulu wopanga zida zotumizidwa kunja, khalidwe lake ndi lokhazikika, kusiyana kwa mitundu ndi kochepa, tinthu tating'onoting'ono ta zinthu ndi tomwe tili bwino, silika womveka, kukana kwa UV ndikwabwino, kumapangitsa kuti iwonongeke. Pakati pawo, choletsa moto cha miyala yopangira chimadalira aluminiyamu hydroxide yokhala ndi mamolekyu atatu amadzi, omwe sapanga mpweya woopsa komanso wowononga panthawi ya pyrolysis. Panthawi ya pyrolysis, imatenga kutentha ndi kutulutsa nthunzi yamadzi.
Ngati mulingo wa aluminiyamu hydroxide womwe wagwiritsidwa ntchito uli mpaka 30%, ndipo kuchuluka kwa maukonde ndiko kuyesa kukula kwa tinthu tating'onoting'ono ta unit ngati mpaka maukonde 2000, mwala wopangidwa woterewu ndi wabwino. Maukonde akakula, tinthu tating'onoting'ono kapena ufa umakhala wofewa. Ngati waphatikizidwa mu chinthu chokhazikika, kapangidwe kake pakati pa mamolekyulu kamakhala kopapatiza, palibe maukonde ndi ma pores, kotero mafuta kapena zonyansa zina zonyansa sizimalowa mosavuta. Pamwamba pomwe palibe maukonde ndi stoma, banga lolimba limathanso kuchotsedwa, ngati chizindikiro cha utsi, mafuta. Ngati palibe maukonde ndi ma pores pamwamba, nkhungu, mtima wa bakiteriya ndi tizilombo tina sitingathe kupulumuka, kuchuluka kwa dongosolo looneka komanso chitetezo cha chilengedwe ndi ukhondo ndizofunikanso kwambiri.
Kuonjezerapo aluminiyamu hydroxide kungapangitse mwala wopangidwa kukhala wopapatiza, kotero kuti udzakhala wolimba kwambiri kugwiritsa ntchito, ndipo monga momwe zilili ndi zinyalala kapena dothi sizingakhale zosavuta kulowa.
Nthawi yotumizira: Epulo-15-2020