Hydrotalc nigikoresho cyingirakamaro kuri calcium zinc stabilisateur. Hydrotalc ifite imiterere yihariye nimiterere, kandi ibyingenzi byingenzi ni alkalinity hamwe na porosity nyinshi, hamwe nibikorwa bidasanzwe kandi byiza kandi byiza. Irashobora kwinjizamo neza hydrogène chloride yarekuwe mugihe cyo kwangirika kwa PVC, igabanya umuvuduko wa catalitike ya hydrogène chloride ya hydrogène kuri resin ya PVC, kandi ikora nk'imyunyu ngugu ya aside, nayo izwi nka stabilite yumuriro. Bikunze gukoreshwa nka stabilisateur yumuriro.
Hydrotalc ifite kandi ibyiza byo gukorera mu mucyo, gukumira, kurwanya ikirere, no gutunganya ibintu. Ntabwo yanduye na sulfide, idafite uburozi, kandi irashobora gukorana hamwe na stabilisateur yubushyuhe nkisabune ya zinc na tin organic. Nubwoko butanga icyizere cyinshi cyuburozi budafite ubumara.
Imiterere ya hydrotalcite itondekanye hamwe nini nini hagati ya 0,76-0.79nm, kandi ifite ubuso bunini bwihariye, butuma amatsinda ya hydroxyl yubuso bwayo yakira neza hamwe na hydrogène chloride kandi ikagira ingaruka nziza kuri stabilisateur.
Ibibi bya hydrotalcite ni:
1. Kubireba umweru wambere, hydrotalcite nta ngaruka igira mugutezimbere amabara ya PVC yambere yaba wenyine cyangwa muguhuza hamwe na sisitemu ya calcium zinc. Nyuma yo gusaza mu ziko rishyushye 180, ibara ry'icyitegererezo rikunda gutukura.
2. Kubijyanye nubushyuhe bwumutuku wa congo, igikorwa kimwe cya hydrotalcite kirashobora kuzamura igihe cyumuriro wa PVC, hamwe niyongera ryamafaranga yiyongereye, igihe cyumuriro wa PVC cyerekana icyerekezo cyiyongera, ariko kwiyongera ntabwo ari ngombwa.
3. Iyo guhuza hydrotalcite na calcium zinc sisitemu ikoreshwa nka stabilisateur yumuriro, igihe cyumuriro wumuriro wa PVC kiratera imbere cyane, kandi inzira yo kongera igihe cyumuriro hamwe nubwiyongere bwamafaranga nayo iranyurwa. Kubwibyo, hydrohydide ya dihydroxy igomba gushyirwa mubikorwa nkigihe kirekire cyumufasha wumuriro wa stabilisateur, ushobora kwagura neza igihe kirekire cyumuriro wa PVC. Rero, iyo uhujwe na calcium zinc stabilisateur, hydrotalcite nikimwe mubikoresho byingenzi.
Igihe cyo kohereza: Gicurasi-24-2024