Impamvu enye zituma ibicuruzwa bya EVA bishira!

Nibihe bintu bigira ingaruka kumanukaIbicuruzwa bya EVA? Nizera ko abantu benshi bahangayikishijwe cyane nibibazo nkibi nibicuruzwa bya EVA. Mubyukuri, EVA igaragara mubuzima bwo murugo nkibikoresho byingenzi ubungubu. Akenshi ikora nkibikoresho byokuzigama amajwi, ibikoresho byo hasi, ibikoresho byo kwisiga, nibindi mumishinga yo gushushanya. Ibikoresho bya EVA bifite ibyiza byinshi nka tapi, nko kurwanya umutingito mwiza, kutirinda amazi, kurwanya amashanyarazi, nibindi. Uyu munsi rero imizigo ya Dongyang Yirong izavuga muri make impamvu enye zingenzi zitera ibicuruzwa bya plastike EVA:

Ibintu bigira ingaruka kumyuka yibicuruzwa bya plastike EVA. Kugabanuka kw'ibicuruzwa bifite amabara ya pulasitike bifitanye isano no kurwanya urumuri, kurwanya ogisijeni, kurwanya ubushyuhe, aside na alkali birwanya pigment n'amabara, hamwe n'ibiranga resin ikoreshwa. Ukurikije uburyo bwo gutunganya no gukoresha ibisabwa mubicuruzwa bya pulasitiki, imitungo yavuzwe haruguru yibintu bisabwa pigment, amarangi, surfactants, dispersants, resin zitwara abagenzi hamwe ninyongeramusaruro zirwanya gusaza bigomba gusuzumwa byimazeyo mugihe bitanga ibihangano mbere yuko bitoranywa.

Impamvu enye zingenzi zitera ibicuruzwa bya EVA:

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Kurugero, molybdenum chrome itukura irwanya aside aside, ariko ikumva alkali, kandi umuhondo wa kadmium ntabwo irwanya 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.

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Ubu buryo nubushyuhe bwo hejuru cyane mugihe cyo gutunganya no okiside mugihe uhuye na okiside ikomeye (nka chromate mumuhondo wa chrome). Nyuma yikiyaga cyamabara, pigment ya azo na chrome yumuhondo bivanze, ibara ritukura rizashira buhoro buhoro.

3. Ubushyuhe bwumuriro bwibintu bitarwanya ubushyuhe bivuga urwego rwo kugabanuka kwubushyuhe bwumuriro, amabara no kugabanuka kwa pigment mubushyuhe bwo gutunganya

Ibimera bidafite umubiri bigizwe na oxyde yicyuma nu munyu, hamwe nubushyuhe bwiza bwumuriro hamwe nubushyuhe bwinshi. Nyamara, pigment yibintu kama bizahinduka muburyo bwa molekile hamwe no kubora gake kubushyuhe runaka. Cyane cyane kubicuruzwa bya PP, PA, na PET, ubushyuhe bwo gutunganya buri hejuru ya 280 ℃. Mugihe duhitamo amabara, kuruhande rumwe, dukwiye kwitondera kurwanya ubushyuhe bwa pigment, kurundi ruhande, tugomba gutekereza igihe cyo guhangana nubushyuhe bwa pigment, ubusanzwe isabwa kuba 4-10rain.

4. Kurwanya urumuri Kurwanya urumuri rwamabara bigira ingaruka muburyo bwo kugabanuka kwibicuruzwa

Kubicuruzwa byo hanze byerekanwe numucyo ukomeye, urumuri rwumucyo (izuba rirwanya) urwego rusabwa rwamabara yakoreshejwe nikimenyetso cyingenzi. Niba urwego rwo kurwanya urumuri ari ruto, ibicuruzwa bizashira vuba mugihe cyo gukoresha. Urwego rwo kurwanya urumuri rwatoranijwe kubicuruzwa birwanya ikirere ntibigomba kuba munsi yurwego rwa 6, byaba byiza urwego 7 cyangwa 8, nurwego rwa 4 cyangwa 5 kubicuruzwa byo murugo. Kurwanya urumuri rwabatwara resin nabyo bigira uruhare runini muguhindura ibara. Iyo resin imaze kuraswa nimirasire ya ultraviolet, imiterere ya molekile yayo irahinduka. Ongeramo stabilisateur yumucyo nka ultraviolet yinjiza mumashusho yambere birashobora kunoza urumuri rwibicuruzwa bya plastike bifite amabara.

Impamvu enye zingenzi zituma ibicuruzwa bya plastike EVA bigabanuka hano. Kwitondera ingingo zavuzwe haruguru birashobora kwirinda ibintu bibi nko kuzimya ibicuruzwa bya EVA; kubera ibyiza byibikoresho bya EVA, ubu birakoreshwa cyane mubuzima bwa buri munsi.