Ni gute wakora siponji ya latex igabanya umuriro?

Ku bijyanye n'ibikenewe mu gukamura umuriro bya latex sponge, isesengura rikurikira rishingiye ku bintu byinshi bihari bigabanya umuriro (aluminium hydroxide, zinc borate, aluminium hypophosphite, MCA) hamwe n'inama zo gukoresha:

I. Isesengura ry'uko umuriro ukoreshwa mu buryo busanzwe

Aluminium Hydroxide (ATH)
Ibyiza:

• Irinda ibidukikije, ihendutse.
• Ikora binyuze mu kubora kw'ingufu no kurekura umwuka w'amazi, bikaba bikwiriye kuri sisitemu zidafite halogen.

Ibibi:

• Ikenera umutwaro mwinshi (30-50 phr) kugira ngo ikore neza, ibi bishobora kugira ingaruka ku bunararibonye n'ubwinshi bw'ibisuguti.

Uburyo bwo gukoresha:

• Bikwiriye imiterere y'ibanze igabanya umuriro.
• Bisabwa kuvanga n'abahuza (synergists) (urugero: zinc borate).

Borate ya Zinc
Ibyiza:

• Irinda umuriro mu buryo buhuriweho, yongera imikorere ya ATH.
• Itera imbere kurema kwa char no kugabanya umwotsi.

Ibibi:

• Ingufu nke iyo ikoreshejwe yonyine; bisaba kuyivanga n'ibindi bintu bigabanya umuriro.

Uburyo bwo gukoresha:

• Bisabwa nk'uburyo bwo guhuza ATH cyangwa aluminium hypophosphite.

Hypophosfite ya aluminiyumu
Ibyiza:

• Ikora neza cyane, nta halogen irimo, kandi nta muvuduko uhagije (10-20 phr).
• Ubushyuhe burakomera neza, bukwiriye ibikenewe mu gihe umuriro udashira cyane.

Ibibi:

• Ikiguzi kiri hejuru.
• Guhuza na sisitemu za latex bisaba kugenzura.

Uburyo bwo gukoresha:

• Ikwiriye ibipimo byo kutagira umuriro mwinshi (urugero, UL94 V-0).
• Ishobora gukoreshwa yonyine cyangwa yose hamwe.

MCA (Melamine Cyanurate)
Ibyiza:

• Irinda umuriro ishingiye kuri azote, ikagabanya umwotsi.

Ibibi:

• Kutanyagurika nabi.
• Bishobora kubangamira ifuro.
• Ubushyuhe bwinshi bwo kubora (~300°C), budahuye n'uburyo bwo gutunganya latex mu bushyuhe bwo hasi.

Uburyo bwo gukoresha:

• Ntabwo ari byiza ko ubikora mbere y'ibindi byose; bisaba ko ubikora ugerageza kubigenzura.

II. Uburyo bwo gukora busabwa n'ibitekerezo ku buryo bwo gukora

Uburyo bwa 1: ATH + Zinc Borate (Uburyo bw'Ubukungu)
Imiterere:

• Aluminium Hydroxide (ATH): 30-40 phr
• Zinc Borate: 5-10 phr
• Imashini igabanya ubushyuhe (urugero: silane coupling agent): 1-2 phr (ituma ikwirakwira ritagurika neza)

Ibiranga:

• Ihendutse, kandi ntingiza ibidukikije.
• Bikwiriye ibisabwa muri rusange byo kudakoresha umuriro (urugero, UL94 HF-1).
• Bishobora kugabanya gato ubushobozi bwo guhangana n'ingufu za sponge; hakenewe uburyo bwo kunoza imiterere y'ingufu.

Uburyo bwa 2: Aluminium Hypophosphite + Zinc Borate (Uburyo bwo gukora neza cyane)
Imiterere:

• Hypophosfite ya aluminiyumu: 15-20 phr
• Borate ya Zinc: 5-8 phr
• Imashini ikora pulasitiki (urugero: parafini y'amazi): 2-3 phr (ituma itunganywa neza)

Ibiranga:

• Ingufu nyinshi zo gutinda umuriro, umutwaro muke.
• Bikwiriye mu bihe bikenewe cyane (urugero, gutwika iburyo V-0).
• Gupima niba aluminium hypophosphite ihuye na latex.

Uburyo bwa 3: ATH + Aluminium Hypophosphite (Uburyo buringaniye)
Imiterere:

• Aluminium Hydroxide: 20-30 phr
• Hypophosfite ya aluminiyumu: 10-15 phr
• Zinc Borate: 3-5 phr

Ibiranga:

• Ingano y'ikiguzi n'imikorere.
• Bigabanya kwishingikiriza ku kintu kimwe kidakoresha umuriro, bigabanya ingaruka ku miterere y'umubiri.

III. Ibitekerezo ku mikorere

Gutatana:

• Ibintu bigabanya umuriro bigomba gusya kugeza kuri ≤5μm kugira ngo hirindwe kugira ingaruka ku miterere y'ifuro.
• Birasabwa gukwirakwiza latex cyangwa ibikoresho byo kuvanga byihuta mbere y'uko ikoreshwa.

Indwara zo gukira:

• Genzura ubushyuhe bwo gutwika (ubusanzwe 110-130°C kuri latex) kugira ngo wirinde ko ibintu bigabanya umuriro bibora imburagihe.

Isuzuma ry'Imikorere:

• Ibizamini by'ingenzi: Oxygen Index (LOI), Vertical Burn (UL94), Ubucucike, Ubushobozi bwo kwihanganira ibintu.
• Niba ubushyuhe bw'umuriro budahagije, ongera buhoro buhoro igipimo cya aluminium hypophosphite cyangwa ATH.

IV. Ibyifuzo by'inyongera

Isuzuma rya MCA:

• Niba ugerageza, koresha 5-10 phr mu byiciro bito kugira ngo urebe ingaruka ku buryo ifuro ringana.

Impamyabushobozi zo kubungabunga ibidukikije:

• Menya neza ko ibikoresho bigabanya inkongi byubahiriza RoHS/REACH mu kohereza ibicuruzwa mu mahanga.

Uruvange rw'ibinyabutabire:

• Tekereza kongeramo ingano nto ya nanoclay (2-3 phr) kugira ngo wongere ingaruka z'uruvange rw'ibara.

This proposal serves as a reference. Small-scale trials are recommended to optimize specific ratios and process parameters. More info , pls contact lucy@taifeng-fr.com