Ingaruka z'ibidahindura ubushyuhe ku bicuruzwa bya PVC: Kurwanya ubushyuhe, Uburyo bwo gutunganya ibintu, no kubonerana

Iyi nyandiko isesengura uburyo ibintu bigabanya ubushyuhe bigira ingaruka ku bicuruzwa bya PVC, yibanda kukurwanya ubushyuhe, ubushobozi bwo gutunganya ibintu, no gukorera mu mucyoMu gusesengura inyandiko n'amakuru y'igerageza, dusuzuma imikoranire iri hagati y'ibikomeza ubushyuhe na resin ya PVC, n'uburyo bigira uruhare mu kudahungabana k'ubushyuhe, koroshya gukora, n'imiterere y'urumuri.

1. Intangiriro

PVC ni thermoplastic ikoreshwa cyane, ariko kudahindagurika kwayo mu bushyuhe bigabanya uburyo ikorwamo.Ibikoresho bifasha mu kubungabunga ubushyuhekugabanya kwangirika kw'ibikoresho mu gihe cy'ubushyuhe bwinshi, ndetse no kugira ingaruka ku buryo ibintu bitunganywa neza no gukorera mu mucyo—ni ingenzi cyane ku bikorwa nk'ibipfunyika n'amafilimi y'ubwubatsi.

2. Ubudahangarwa bw'ubushyuhe bwa Stabilizers muri PVC

2.1 Uburyo bwo Gutuza

Ibikoresho bitandukanye bitera imbaraga (bishingiye ku ruziga,kalisiyumu - zinki, organotine) koresha uburyo butandukanye:

Ishingiye ku buyobozi: Ikorana na atome za Cl zigaragara mu minyururu ya PVC kugira ngo ikore complexes zihamye, birinda kwangirika.
Kalisiyumu - zinki: Guhuza aside - gufatanya n'ibikomoka ku bimera - gukusanya.
Organotin (methyl/butyl tin): Huza hamwe n'iminyururu ya polymer kugira ngo uhagarike dehydrochlorination, uhagarike neza kwangirika.

2.2 Gusuzuma uburyo ubushyuhe buhagaze

Isuzuma rya Thermogravimetric Analysis (TGA) ryerekana ko PVC ihamye ifite ubushyuhe bwinshi bwo kwangirika kw'ibinyabutabire kurusha sisitemu gakondo ya calcium na zinc. Nubwo ibitera imbaraga bishingiye kuri lisansi bitanga ubuziranenge bw'igihe kirekire muri zimwe mu nzira, impungenge ku bidukikije/ubuzima zibangamira ikoreshwa ryayo.

3. Ingaruka zo gutunganya ibintu

3.1 Gushonga no Kugabanuka kw'Umuvuduko

Ibikoresho bitera imbaraga bihindura imyitwarire ya PVC yo gushonga:

Kalisiyumu - zinki: Bishobora kongera ubukana bw'ingufu zishongesha, bikabangamira uburyo bwo gusohora/gutera inshinge.
Organotin: Gabanya ubushyuhe kugira ngo ikore neza kandi igire ubushyuhe buke—ni byiza ku miyoboro y'umuvuduko mwinshi.
Ishingiye ku buyobozi: Urujya n'uruza rw'amazi rugabanuka ariko amadirishya yo gutunganya ibintu afunganye bitewe n'isahani - ingaruka zishobora kubaho.

3.2 Gusiga amavuta no kurekura ifu

Bimwe mu bintu bitera imbaraga bikoreshwa nk'amavuta yo kwisiga:

Kalisiyumu – zinc ikunze kuba irimo amavuta yo kwisiga imbere kugira ngo yongere irekurwa ry’ibihumyo mu ishinge.
Ibikoresho bifasha mu gutunganya ibintu bya organotin byongera ubushobozi bwa PVC - ibi bifasha mu buryo butaziguye gutunganya ibintu.

4. Ingaruka ku gukorera mu mucyo

4.1 Imikoranire n'imiterere ya PVC

Umucyo uterwa n'uburyo ibintu bitera imbaraga mu gukwirakwiza PVC:

Ibikoresho bito bigabanya umucyo, bigabanya ubushyuhe, bigatuma urumuri rudakwirakwira neza.
Ibitera imbaraga bya organotinkwihuza n'iminyururu ya PVC, bigabanya kwangirika kw'urumuri.
Ibikoresho bitanga ubuziranenge bushingiye ku ruziga (ibice binini, bitangana) bitera gukwirakwira kw'urumuri rwinshi, bigagabanya ubuziranenge.

4.2 Ubwoko bwa Stabilizers & Transparency

Ubushakashatsi bwo kugereranya bwerekana ko:

Filimi za PVC za Organotin zihamye zigera kuri > 90% by'urumuri.
Kalisiyumu - zinc stabilizers itanga umusaruro wa ~ 85–88%.
Ibikoresho bitanga imbaraga bikoresha lisansi bikora nabi kurushaho.

Inenge nka "amaso y'amafi" (afitanye isano n'ubwiza/gukwirakwira kw'ibipimo) nabyo bigabanya ubwumvikane—ibipimo by'ubwiza bwo hejuru bigabanya ibi bibazo.

5. Umwanzuro

Ibintu bigabanya ubushyuhe ni ingenzi cyane mu gutunganya PVC, mu gutuma ubushyuhe budashobora kwimurwa, guhindurwa neza no gukorera mu mucyo:

Ishingiye ku buyobozi: Bitanga ituze ariko bihanganye n'ibibazo by'ibidukikije.
Kalisiyumu - zinki: Kurengera ibidukikije - byoroshye ariko bikenewe kunoza uburyo bwo gutunganya ibintu/kubikora mu mucyo.
Organotin: Excel mu bice byose ariko ihura n'imbogamizi mu biciro/amabwiriza mu turere tumwe na tumwe.

Ubushakashatsi bw'ejo hazaza bugomba guteza imbere ibintu bitera imbaraga bihuza uburyo bwo kubungabunga ibidukikije, imikorere myiza, n'ubuziranenge bw'amatara kugira ngo bihuze n'ibyo inganda zikeneye.