Amakuru

Ipitingi ya firime yerekana isahani isize amabara cyane cyane irimo gufatisha hamwe no gukama.
Ibara ryometseho isahani
Intambwe yambere yo gufatisha ibyuma bya substrate ya substrate hamwe nigitwikirizo ni uguhindura ibara ryanditseho ibara ryometse hejuru yubutaka.Igishishwa gitwikiriye gishobora gusimbuza umwuka namazi yabanje kwerekanwa hejuru yicyuma cya substrate.Muri icyo gihe, guhindagurika kwa solve hejuru yubutaka bwa substrate bigira ingaruka zo gusenyuka cyangwa kubyimba.Niba ibipimo bya solubilité ya firime ikora ibisigazwa byamabara yatwikiriye isahani hamwe nubuso bwa substrate byatoranijwe neza, hazashyirwaho urwego ruvanze hagati yubuso bwibara ryibara ryububiko hamwe na firime ya coating, Ibi nibyiza cyane ingenzi kubwiza bwiza bwo gutwikira.
B Ibara ryometseho isahani yumye
Iyubakwa rya adhesion ryububiko bwibara risize irangi ryuzuza gusa intambwe yambere yo gushiraho firime ya coating mugikorwa cyo gutwikira isahani isize amabara, kandi ikanakomeza inzira yo guhinduka firime ikomeye ikomeza, ishobora kuzuza amashusho yose ya firime. inzira.Ubu buryo kuva kuri "firime itose" kugeza kuri "firime yumye" mubisanzwe byitwa "gukama" cyangwa "gukiza".Iyi nzira yo kumisha no gukiza niyo ntandaro yo gutunganya firime.Imiterere itandukanye hamwe nibihimbano bifite uburyo bwihariye bwo gukora firime, bigenwa nimiterere yibintu bikora firime bikoreshwa muri kote.Mubisanzwe, tugabanije firime-yerekana ibice bibiri: bikomeye n'umurima
(1) Ntabwo yahinduwe.Mubisanzwe, bivuga uburyo bwo gukora firime yumubiri, ahanini biterwa no guhindagurika kwa solvent cyangwa ibindi bitangazamakuru bitatanya muri firime, kandi ubukana bwa firime buhoro buhoro bwiyongera kugirango bukore firime ikomeye.Kurugero: irangi rya acrylic, irangi rya chlorine, irangi rya vinyl, nibindi.
(2) Guhinduka.Mubisanzwe, bivuga reaction yimiti ibaho mugihe cyo gukora firime, kandi firime ikora ya coater ahanini biterwa nubushakashatsi bwimiti.Ubu bwoko bwo gukora firime ninzira yibintu bikora firime muri coating polymerizing firime yitwa polymer nyuma yo kubaka.Birashobora kuvugwa ko ari uburyo bwihariye bwo guhuza polymer, bukurikiza byimazeyo uburyo bwo gukora polymer synthesis.Kurugero: alkyd coating, epoxy coating, polyurethane coating, coating fenolique, nibindi, ariko, imyenda myinshi igezweho ntabwo ikora firime muburyo bumwe, ahubwo ishingiye kuburyo bwinshi bwo gukora firime.Ipitingi ya coil nimwe isanzwe ishingiye kuburyo bwinshi bwo gukora firime.