Bakeng sa litlhoko tsa seponche sa latex tse thibelang malakabe, tlhahlobo e latelang e ipapisitse le lintho tse 'maloa tse thibelang malakabe tse seng li ntse li le teng (aluminium hydroxide, zinc borate, aluminium hypophosphite, MCA) hammoho le likhothaletso tsa ho etsa:
I. Tlhahlobo ea Tšebeliso e Tebileng ea Mollo e Teng
Aluminium Hydroxide (ATH)
Melemo:
- E mosa tikolohong, e theko e tlase.
- E sebetsa ka ho bola ha endothermic le ho lokolloa ha mouoane oa metsi, e loketseng litsamaiso tse se nang halogen.
Mathata:
- E hloka mojaro o phahameng (30-50 phr) bakeng sa katleho, e leng se ka amang ho tenyetseha le ho teteana ha seponche.
Tšebeliso:
- E loketse bakeng sa metsoako ea motheo e thibelang malakabe.
- E kgothaletswa ho kopanngwa le di-synergists (mohlala, zinc borate).
Borate ea Zinki
Melemo:
- E thibela malakabe ka tsela e tšoanang, e ntlafatsa katleho ea ATH.
- E khothalletsa ho thehoa ha char le ho thibela mosi.
Mathata:
- Katleho e fokolang ha e sebelisoa e le 'ngoe; e hloka ho kopanngoa le lintho tse ling tse thibelang malakabe.
Tšebeliso:
- E kgothaletswa e le motsoako o kopanyang ATH kapa aluminium hypophosphite.
Hypophosphite ea Aluminium
Melemo:
- E sebetsa hantle haholo, ha e na halogen, e na le mojaro o tlase (lihora tse 10-20).
- Ho tsitsa ha mocheso hantle, ho loketse litlhoko tse phahameng tsa ho lieha ha mollo.
Mathata:
- Litšenyehelo tse phahameng.
- Ho lumellana ha tsona le litsamaiso tsa latex ho hloka netefatso.
Tšebeliso:
- E loketse maemo a ho lieha ha mollo haholo (mohlala, UL94 V-0).
- E ka sebelisoa e le 'ngoe kapa e kopane.
MCA (Melamine Cyanurate)
Melemo:
- E thibelang malakabe a entsoeng ka naetrojene, e thibela mosi.
Mathata:
- Ho se qhalane hantle.
- E ka sitisa ho ntsha phumulo.
- Mocheso o phahameng oa ho bola (~300°C), ha o tsamaisane le ts'ebetso ea latex ea mocheso o tlase.
Tšebeliso:
- Ha e kgothaletswe e le ntho ya bohlokwa; e hloka netefatso ya teko.
II. Mekhoa e Khothaletsoang le Litlhahiso tsa Ts'ebetso
Sebopeho sa 1: ATH + Zinc Borate (Khetho ea Moruo)
Sebopeho:
- Aluminium Hydroxide (ATH): 30-40 phr
- Borate ea Zinki: 5-10 ph
- Sehatsetsi (mohlala, sesebelisoa sa ho kopanya sa silane): 1-2 phr (e ntlafatsa ho hasana)
Litšobotsi:
- Litšenyehelo tse tlase, tse sireletsang tikoloho.
- E loketse litlhoko tse akaretsang tsa ho lieha ha mollo (mohlala, UL94 HF-1).
- E ka fokotsa ho mamella seponche hanyane; Ho hlokahala ntlafatso ea Vulcanization.
Sebopeho sa 2: Aluminium Hypophosphite + Zinc Borate (Khetho e Bokgoni bo Hodimo)
Sebopeho:
- Aluminium Hypophosphite: 15-20 phr
- Borate ea Zinki: 5-8 ph
- Setlolo sa polasetiki (mohlala, parafini e metsi): 2-3 phr (e ntlafatsa bokgoni ba ho sebetsa)
Litšobotsi:
- Bokgoni bo phahameng ba ho thibela malakabe, mojaro o tlase.
- E loketse maemo a tlhokeho e phahameng (mohlala, ho chesa ka ho otloloha V-0).
- Teko ea ho lumellana ha aluminium hypophosphite le latex e hloka ho etsoa.
Sebopeho sa 3: ATH + Aluminium Hypophosphite (Khetho e Leka-lekaneng)
Sebopeho:
- Aluminium Hydroxide: 20-30 phr
- Aluminium Hypophosphite: 10-15 phr
- Borate ea Zinki: 3-5 ph
Litšobotsi:
- Ho leka-lekanya litšenyehelo le ts'ebetso.
- E fokotsa ho itšetleha ka ntho e le 'ngoe e thibelang mollo, e fokotsa tšusumetso thepeng ea 'mele.
III. Mehopolo ea Ts'ebetso
Ho qhalana ha tsona:
- Lintho tse thibelang malakabe li lokela ho siloa ho fihlela ho ≤5μm ho qoba ho ama sebopeho sa foam.
- Ho kgothaletswa ho hasanya latex kapa disebediswa tsa ho kopanya tse potlakileng haholo pele.
Maemo a Phekolo:
- Laola mocheso oa ho phekola (hangata 110-130°C bakeng sa latex) ho thibela ho bola pele ho nako ha lintho tse thibelang malakabe.
Teko ea Tshebetso:
- Liteko tsa bohlokoa: Index ea Oksijene (LOI), Ho Chesa ho Emeng (UL94), Botenya, Ho Ikamahanya le Maemo.
- Haeba ho lieha ha lelakabe ho sa lekana, eketsa butle-butle tekanyo ea aluminium hypophosphite kapa ATH.
IV. Litlhahiso tse ling
Teko ea MCA:
- Haeba o leka, sebedisa 5-10 phr ka dihlopha tse nyane ho bona tshusumetso ho tshwaneng ha foam.
Litifikeiti tsa Tikoloho:
- Netefatsa hore lintho tse thibelang malakabe tse khethiloeng li latela RoHS/REACH bakeng sa ho romela thepa kantle ho naha.
Metswako e Kopanetsoeng:
- Nahana ka ho eketsa nanoclay e nyane (2-3 phr) ho ntlafatsa litlamorao tsa thibelo ea char.
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
Nako ea poso: Mots'eanong-22-2025
