Bakeng sa litlhoko tse thibelang malakabe tsa seponche sa latex, tse latelang ke tlhahlobo e thehiloeng ho li-retardants tse 'maloa tse seng li ntse li le teng (aluminium hydroxide, zinc borate, aluminium hypophosphite, MCA) hammoho le likhothaletso tsa tlhahiso:
I. Tlhahlobo ea Ts'ebeliso e Teng ea Lelakabe le Retardant
Aluminium Hydrooxide (ATH)
Melemo:
- Ho boloka tikoloho, litšenyehelo tse tlase.
- E sebetsa ka ho bola ha endothermic le ho lokolloa ha mouoane oa metsi, e loketseng lisebelisoa tse se nang halogen.
Mefokolo:
- E hloka thepa e phahameng (30-50 phr) bakeng sa katleho, e ka amang seponche elasticity le segokanyipalo.
Tšebeliso:
- E loketse litlolo tsa mantlha tse thibelang malakabe.
- E khothalletsoa ho kopana le li-synergists (mohlala, zinki borate).
Borate ea Zinc
Melemo:
- Synergistic flame retardant, e ntlafatsa katleho ea ATH.
- E khothaletsa tlhahiso ea char le ho hatella mosi.
Mefokolo:
- Matla a fokolang ha a sebelisoa a le mong; e hloka ho kopana le li-flame retardants tse ling.
Tšebeliso:
- E khothaletsoa joalo ka synergist bakeng sa ATH kapa aluminium hypophosphite.
Hypophosphite ea aluminium
Melemo:
- E sebetsa hantle haholo, halogen e se na halogen, e jarollo e tlase (10-20 phr).
- Botsitso bo botle ba mocheso, bo loketseng litlhoko tse phahameng tsa ho thibela mollo.
Mefokolo:
- Litsenyehelo tse phahameng.
- Ho lumellana le litsamaiso tsa latex ho hloka ho netefatsoa.
Tšebeliso:
- E loketse maemo a phahameng a ho lieha ha lelakabe (mohlala, UL94 V-0).
- E ka sebelisoa e le mong kapa e kopane.
MCA (Melamine Cyanurate)
Melemo:
- Ho thibela lelakabe le nang le naetrojene, ho hatella mosi.
Mefokolo:
- Dispersibility e mpe.
- E ka kena-kenana le ho foamisa.
- Mocheso o phahameng oa ho bola (~ 300 ° C), o sa tsamaisane le mocheso o tlase oa ho sebetsa ha latex.
Tšebeliso:
- Ha e khothalletsoe e le ntho e tlang pele; e hloka netefatso ea liteko.
II. Litlhahiso tse khothalelitsoeng le Litlhahiso tsa Ts'ebetso
Sebopeho sa 1: ATH + Zinc Borate (Khetho ea Moruo)
Moetso:
- Aluminium Hydrooxide (ATH): 30-40 phr
- Zinc Borate: 5-10 phr
- Dispersant (mohlala, silane coupling agent): 1-2 phr (e ntlafatsa ho qhalana)
Litšobotsi:
- Theko e tlase, e se nang tikoloho.
- E loketse litlhoko tse akaretsang tsa ho lieha lelakabe (mohlala, UL94 HF-1).
- E ka fokotsa ho tiea ha seponche hanyenyane; Ntlafatso ea Vulcanization ea hlokahala.
Sebopeho sa 2: Aluminium Hypophosphite + Zinc Borate (Kgetho ya Bonono bo Phahameng)
Moetso:
- Aluminium Hypophosphite: 15-20 phr
- Zinc Borate: 5-8 phr
- Plasticizer (mohlala, parafine ea metsi): 2-3 phr (e ntlafatsa ts'ebetso)
Litšobotsi:
- Matla a phahameng a ho thibela lelakabe, ho kenya thepa e tlaase.
- E loketse maemo a batloang haholo (mohlala, ho chesa V-0).
- Ho lumellana ha aluminium hypophosphite le tlhahlobo ea litlhoko tsa latex.
Sebopeho sa 3: ATH + Aluminium Hypophosphite (Khetho e leka-lekaneng)
Moetso:
- Aluminium Hydrooxide: 20-30 phr
- Aluminium Hypophosphite: 10-15 phr
- Zinc Borate: 3-5 phr
Litšobotsi:
- Ho leka-lekanya litšenyehelo le ts'ebetso.
- E fokotsa ho itšetleha ka ntho e le 'ngoe e thibelang lelakabe, e fokotsa tšusumetso ho thepa ea 'mele.
III. Mehopolo ea Ts'ebetso
Dispersibility:
- Li-flame retardants li lokela ho ba fatše ho ≤5μm ho qoba ho ama sebopeho sa foam.
- Ho kgothaletswa ho hasana pele ho lisebelisoa tsa latex kapa tsa ho kopanya ka lebelo le phahameng.
Maemo a Phekolo:
- Laola mocheso oa ho folisa (ka tloaelo 110-130 ° C bakeng sa latex) ho thibela ho bola pele ho nako ea li-flame retardants.
Teko ea Ts'ebetso:
- Liteko tsa bohlokoa: Oxygen Index (LOI), Vertical Burn (UL94), Density, Resilience.
- Haeba ho lieha ha lelakabe ho sa lekana, butle-butle eketsa aluminium hypophosphite kapa ATH ratios.
IV. Litlhahiso tse Eketsehileng
Teko ea MCA:
- Haeba u leka, sebelisa 5-10 phr ka lihlotšoana tse nyane ho bona phello ea ho ts'oana ho hoholo.
Ditifikeiti tsa Tikoloho:
- Netefatsa hore li-retardants tse khethiloeng tsa lelakabe li latela RoHS/REACH bakeng sa thepa e tsoang kantle ho naha.
Likopano tsa Synergistic:
- Nahana ka ho kenyelletsa li-nanoclay tse nyane (2-3 phr) ho ntlafatsa litlamorao tsa 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: May-22-2025
