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Kuki ibara rya plastike rihuye nibicuruzwa bishira?

Enlarged font  Narrow font Release date:2021-04-03  Source:Gutera Micro  Browse number:251
Note: Kugabanuka kw'ibicuruzwa bya pulasitiki bifite amabara bifitanye isano no kurwanya urumuri, kurwanya ogisijeni, kurwanya ubushyuhe, aside na alkali birwanya toner, n'ibiranga resin yakoreshejwe.

Ibicuruzwa byamabara ya plastike bizashira kubera ibintu byinshi. Kugabanuka kw'ibicuruzwa bya pulasitiki bifite amabara bifitanye isano no kurwanya urumuri, kurwanya ogisijeni, kurwanya ubushyuhe, aside na alkali birwanya toner, n'ibiranga resin yakoreshejwe.

Ibikurikira nisesengura rirambuye kubintu bigenda bishira amabara ya plastike:

1. Umucyo wamabara

Umuvuduko mwinshi wamabara bigira ingaruka muburyo bwo kugabanuka kwibicuruzwa. Kubicuruzwa byo hanze byerekanwe nurumuri rukomeye, umuvuduko wurumuri (urumuri rwihuta) urwego rusabwa rwamabara yakoreshejwe nikimenyetso cyingenzi. Urwego rwihuta rwumucyo ni ruto, kandi ibicuruzwa bizashira vuba mugihe cyo gukoresha. Urwego rwo kurwanya urumuri rwatoranijwe kubicuruzwa bitarwanya ikirere ntibigomba kuba munsi yamanota atandatu, byaba byiza amanota arindwi cyangwa umunani, kandi ibicuruzwa byo murugo birashobora guhitamo amanota ane cyangwa atanu.

Kurwanya urumuri rwabatwara resin nabyo bigira uruhare runini muguhindura amabara, kandi imiterere ya molekuline ya resin irahinduka kandi igashira nyuma yo kuraswa nimirasire ya ultraviolet. ongeramo urumuri rwumucyo nka ultraviolet yinjiza mumashusho yambere birashobora kunoza urumuri rwamabara nibicuruzwa bya plastiki.

2. Kurwanya ubushyuhe

Ubushyuhe bwumuriro wa pigment idashobora kwihanganira ubushyuhe bivuga urwego rwo gutakaza ubushyuhe bwumuriro, amabara, hamwe no kugabanuka kwa pigment mubushyuhe bwo gutunganya.

Ibinyabuzima bidafite umubiri bigizwe na oxyde yicyuma nu munyu, hamwe nubushyuhe bwiza bwumuriro hamwe nubushyuhe bwinshi. Ibara ryibintu kama bizahinduka muburyo bwimiterere ya molekile hamwe no kubora gake kubushyuhe runaka. Cyane cyane kubicuruzwa bya PP, PA, PET, ubushyuhe bwo gutunganya buri hejuru ya 280 ℃. Mugihe uhitamo amabara, umuntu agomba kwitondera kurwanya ubushyuhe bwa pigment, kandi kurundi ruhande rwo guhangana nubushyuhe bwa pigment. Igihe cyo kurwanya ubushyuhe mubisanzwe ni 4-10min. .

3. Antioxydants

Ibimera bimwe na bimwe bigenda byangirika bya macromolecular cyangwa izindi mpinduka nyuma ya okiside hanyuma bigenda bishira buhoro buhoro. Ubu buryo nubushyuhe bwo hejuru cyane mugihe cyo gutunganya, hamwe na okiside mugihe uhuye na okiside ikomeye (nka chromate mumuhondo wa chrome). Nyuma yikiyaga, pigment ya azo na chrome yumuhondo bikoreshwa hamwe, ibara ry'umutuku rizashira buhoro buhoro.

4. Kurwanya aside na alkali

Kugabanuka kw'ibicuruzwa bya pulasitike by'amabara bifitanye isano no kurwanya imiti irwanya ibara (aside irwanya alkali, irwanya okiside-kugabanya). Kurugero, molybdenum chrome itukura irwanya aside aside, ariko ikumva alkalis, kandi umuhondo wa kadmium ntabwo urwanya aside. Izi pigment ebyiri hamwe na resinike ya fenolike bigira ingaruka zikomeye zo kugabanya amabara amwe, bigira ingaruka zikomeye kubirwanya ubushyuhe no guhangana nikirere byamabara kandi bigatera gushira.

Kugira ngo ibicuruzwa byamabara ya pulasitike bigabanuke, bigomba gutoranywa ukurikije uburyo bwo gutunganya no gukoresha ibisabwa mubicuruzwa bya pulasitike, nyuma yo gusuzuma byimazeyo imitungo yavuzwe haruguru yibintu bisabwa pigment, amarangi, surfactants, dispersants, resin zitwara abagenzi hamwe na anti- gusaza inyongera.


 
 
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