Mu myaka yashize, hamwe nubuyobozi bwa politiki yo kurengera ibidukikije no kuzamura benshigutwikiraababikora, amaziborneirangi ryamenyekanye cyane ku isoko, kandi imikorere y’ibara ryibice bibiri bigizwe n’amazi yagereranijwe n’irangi rishingiye ku mavuta mu bintu byinshi, bikaba bidatandukana n’iterambere no gushyira mu bikorwaamazi PUUmuti.
Bogao's waterbornePUUmutiBG-2655-80, fcyangwa ibishishwa byamazi, ibifata amazi, wino yo mumazi, nibindi.
Niikoreshwa nkibikoresho byo gukiza ibice byamazi yibice bibiriPUSisitemu.
Ifite ibiranga Paint firime yumye vuba, ibintu byiza byumubiri nubumara.
Amazi ya PU akiza arimo umubare munini wamatsinda ya isocyanate (- NCO), ashobora guhuzwa nitsinda ryinshi rikora nka hydroxyl, amino na carboxyl.Nigute ushobora kugenzura neza kuruhande no gutegura irangi ryibice bibiri byamazi hamwe nibikorwa byiza bisaba guhitamo imiti ikiza yo mumazi, no kumenya ingingo zingenzi zogushushanya no gutegura film muburyo burambuye.
Ubushakashatsi bwakoreshejwe mubikoresho byo gukiza amazi PU byatangiye mu mpera za 1980.Bayer yabaye ku isonga mu bushakashatsi n’iterambere, kandi yagize uruhare mu kuzamura imiti ikiza amazi n’irangi ry’amazi.Yatangiye bitinze mu Bushinwa, ariko itera imbere byihuse, kandi ikoreshwa cyane mu gutwikira inganda, gutwikira hasi, gutwika ibiti, inganda z’imodoka, inganda z’imyenda n’izindi nzego.
- Gushyira mu nganda
Amazi ya PU yo gukiza yahujwe na hydroxyl ikwirakwizwa n'amazi.Kuberako hydroxyl ikwirakwiza ifite uburemere buke bwa molekile, hydroxyl ifite agaciro kanini kandi ntigaragara, ifite ubucucike bwinshi, ubukana bwinshi, ububengerane bwiza hamwe no guhangana neza nyuma yo guhuza no gukira.Irashobora kugereranywa rwose namavuta ashingiye kumavuta mumikorere, kandi irashobora gukoreshwa cyane mubikorwa byo kurwanya ruswa no gutwika imitako.
- Gusaba hasi
Ibice bibiri bigize amazi PUgutwikira bikoreshwa mu mazi ashingiye ku mazi, afite ibiranga kurengera ibidukikije n’ubuzima.AmaziPUgutwikira bifite ibiranga guhinduka cyane, kwihanganira kwambara, kurwanya ikirere, kurwanya amazi no guhangana neza.
- Gusaba mu biti
Irangi ryiza cyane ryamazi yo mu bwoko bwa matte ni icyerekezo cyinganda zo mu nzu.Filime irangi itanga ibyiyumvo byiza nyuma yo kuzimangana, kandi ikundwa cyane nabantu.Ipitingi ya varish yongewemo na matting agent ifite umucyo muke no kurwanya nabi hagati.Ingaruka yo guhuza irashobora kugerwaho hifashishijwe imiti ikiza uhereye kuri molekile.Ubwoko bumwe bw'amazi, hamwe nuburyo butandukanye bwo gukiza matte, burashobora kubona gloss dukeneye.
Igihe cyo kohereza: Gashyantare-17-2023