Ibi bikurikira ni isuzuma ry’ikoreshwa rya methyl tin stabilizers mu gutunganya PVC, hashingiwe ku mikorere yazo n’imikorere y’inganda:
1, Imiterere y'ikoreshwa n'uburyo bwo guhuza ikoranabuhanga
1. Gutunganya ibicuruzwa bikomeye bibonerana
Ikwiriye impapuro za PVC zibonerana, imbaho, firime zo gushyushya zibonerana cyane n'ibindi bicuruzwa, ikoresheje uburyo ihura neza na resin ya PVC, urumuri rw'icyo gicuruzwa rushobora kugera kuri 90%, kandi nta mvura cyangwa umuhondo bibaho.
2. Inzira zisanzwe: gucuranga no gusohora
Ifuru isabwa: Ingano y'inyongera 1.2-1.6 phr (urugero: dufashe ubugari bwa firime 0.1-0.3mm)
3. Gukora imiyoboro n'imiterere yayo
Ikoreshwa mu bikoresho by'ubwubatsi nk'imiyoboro y'amazi n'inzugi n'amadirishya bya pulasitiki, ishobora kugabanya ogisijeni no kubora kwa PVC mu gihe cyo kuyitunganya binyuze mu bushyuhe burambye, kandi yongere igihe cyo kwihanganira ikirere cy'ibicuruzwa ho hejuru ya 30%.
4. Ahantu ho gupakira ibiribwa/imiti
Bikurikije amahame y’isuku ya EU ROHS na US ASTM D3421, akoreshwa mu bikoresho by’ibiribwa, mu macupa yo gupfunyikamo imiti, n’ibindi, ingano y’icyuma gikomeye kiri mu bicuruzwa iri munsi ya 0.1 ppm.
2, Kugereranya ibyiza byo gukoresha
| Igipimo cy'imikorere | Iterambere rya Methyl tin | Ikoreshwa mu kubungabunga umunyu ukomoka kuri lead risanzwe |
| Imiterere y'ibara ry'ibanze | Amazi meza | Bishobora guhinduka umuhondo |
| Uburyo bwo guhagarara neza mu bushyuhe | Igihe kirekire (≥ 180 ℃ ihamye idahindagurika) | Ingaruka nyinshi zo gutsindwa hagati mu gihembwe cy'imyitozo |
| Umutekano no kubungabunga ibidukikije | Igihe kirekire (≥ 180 ℃) gihamye mu buryo buhoraho | Imyuka ihumanya ikirere ya lead/cadmium |
| Uburyo bwo gutunganya ibintu | Bijyanye n'uburyo bwose bwo gukora PVC ikomeye/yoroshye | Ku bicuruzwa bikomeye gusa |
Icyitonderwa: Amakuru aturuka ku kugereranya ibipimo nyabyo byakozwe n'ibigo bitunganya PVC haba imbere mu gihugu no ku rwego mpuzamahanga.
3, Ingamba zo kunoza uburyo bwo guhuza ibikorwa
1. Igishushanyo mbonera cya sisitemu ivanze
Ubusanzwe ikoreshwa hamwe n'amavuta ya soya yahinduwemo epoxidized (3-5 phr) na calcium stearate (0.5-1 phr) kugira ngo yongere ubushobozi bwo gushonga no kugabanya agaciro k'imbaraga.
2. Kugenzura ubushyuhe mu gihe cyo gutunganya
Ni byiza gushyiraho ubushyuhe bwo gusohora mu bice (160-185 ℃) kugira ngo hirindwe ko amatsinda ya thiol yangirika bitewe no kurenza 210 ℃.
3. Uburyo bwo kuvura budashobora guhumeka
Mu gihe cyo kubika, ubushuhe bw’ibidukikije bugomba kubikwa munsi ya 60%. Mbere yo gutunganya, ibikoresho fatizo bya PVC bigomba kumyuka kuri 80°C mu gihe cy’amasaha 2 kugira ngo hirindwe ko amazi yangirika.
(Icyitonderwa: Iki gicuruzwa ni amazi adafite ibara kandi agomba kubikwa ahantu hafunze neza kure y'urumuri.)
Igihe cyo kohereza: Gicurasi-19-2025
