Ibisobanuro
Imashini itanga ubushyuhe irinda polymers kwangirika kwimiti iterwa nubushyuhe cyangwa imirasire ya UV. Izi nyongeramusaruro zirimo imiti itandukanye yimiti, uhereye kumiti yumutungo kamere ukageza kumasabune yicyuma kugeza kubintu bigoye bya organometallic. Kugeza ubu polymer ikunze gukoreshwa isaba gukoresha stabilisateur yubushyuhe ni polyvinyl chloride (PVC). Nyamara, koperimeri ya PVC, chlorine polyvinyl chloride (CPVC), polyvinylidene chloride (PVDC) na chlorine polyethylene (CPE) nayo yungukirwa nubu buhanga. PVC nicyiciro cyingenzi cya halogenated polymers isaba ibyo byongeweho imiti.
Mubikorwa bisanzwe, PVC resin ivangwa cyane nibintu byifuzwa mugihe cyo kuvanga imisatsi miremire kugirango bibe ifu yumye yumye. Ubushyuhe bwo gushyushya bushobora kuba amazi cyangwa ifu kandi bikongerwaho hakiri kare kuvanga kugirango bitange umutekano muri iki gikorwa. Gushyushya ibisigazwa hafi yubushyuhe bwikirahure byorohereza adsorption yinyongeramusaruro, bikavamo imitekerereze myiza yifu nubucucike buke mubice byanyuma. Kohereza - ibikorwa byo guhuza, nka pelletisation yo gukuramo, byongera amateka yubushyuhe rusange ya polymer, bityo urwego rwo hejuru gato rwa stabilisateur yumuriro rusabwa kwishyura ibi.
Organotine ishingiye ku bushyuhe ni bwo buryo bwiza kandi bukoreshwa cyane muri PVC. Ibi nibikomoka kuri tetravalent tin. Icya kabiri gikoreshwa cyane stabilisateur ni icyuma kivanze. Ibicuruzwa byiganjemo porogaramu zoroshye za PVC muri Amerika. Ubucuruzi bukomeye bwa alkali na alkaline yisi ibyuma bishingiye kumunyu hamwe nisabune ya calcium, zinc, magnesium, barium na kadmium bikoreshwa muri sisitemu ya stabilisateur. Ibindi bintu kama nka fosifite, epoxide, polyoli na beta - diketone nabyo birashobora kongerwaho kugirango turusheho kunoza imikorere. Antimony mercaptan stabilisateur nayo irakoreshwa.
