Nhazi Halogen-Free Flame Retardant maka Sistemụ mkpuchi TPU Iji DMF Solvent

Nhazi Halogen-Free Flame Retardant maka Sistemụ mkpuchi TPU Iji DMF Solvent

Maka sistemu mkpuchi TPU na-eji Dimethyl Formamide (DMF) dị ka ihe mgbaze, ojiji nke aluminom hypophosphite (AHP) na zinc borate (ZB) dị ka ọkụ retardants chọrọ nyocha usoro. N'okpuru bụ nyocha zuru ezu na atụmatụ mmejuputa:

I. Nleba anya nke Aluminom Hypophosphite (AHP)

1. Igwe na-egbochi ire ọkụ na uru

• Usoro:
• Na-emebi emebi na okpomọkụ dị elu iji mepụta acid phosphoric na metaphosphoric, na-akwalite nhazi cha cha na TPU (nkwụsị ọkụ na-agba agba).
• Na-ewepụta PO · radicals ka ọ kwụsịtụ mmeghachi omume nrụnye combustion (nkwụghachi ọkụ n'usoro gas).
• Uru:
• Halogen efu, anwụrụ ọkụ dị ala, nsi dị ala, kwekọrọ na RoHS/REACH.
• Ezi nkwụsi ike nke okpomọkụ (okpomọkụ ire ere ≈300 ° C), dabara maka usoro ihicha TPU (na-emekarị <150 ° C).

2. Ihe ịma aka ngwa na ngwọta

3. Nhazi na usoro akwadoro

• Ụdị ihe atụ:
• Ntọala TPU/DMF: 100phr
• AHP emeziri elu: 20 phr
• Zinc borate (ZB): 5phr (mmekọrịta mmechi anwụrụ ọkụ)
• Nkesa (BYK-110): 1.5 pr
• Isi ihe usoro:
• Tupu mix AHP na dispersant na ele mmadụ anya n'ihu DMF n'okpuru akwa shiee (≥3000 rpm, 30 min), wee gwakọta na TPU slurry.
• Mkpuchi mkpuchi mkpuchi: 120-150 ° C, gbasaa oge site na 10% iji hụ na ikuku DMF zuru oke.

II. Nyocha gbasara ike nke Zinc Borate (ZB)

1. Igwe na-egbochi ire ọkụ na uru

• Usoro:
• Na-etolite akwa iko B₂O₃ na oke okpomọkụ, na-egbochi ikuku oxygen na okpomọkụ (nkwụsị ọkụ na-agba agba).
• Na-ewepụta mmiri ejikọtara ọnụ (~ 13%), na-agbaze gas na-ere ọkụ ma na-eme ka usoro ahụ dị jụụ.
• Uru:
• Mmetụta synergistic siri ike na AHP ma ọ bụ aluminom trihydroxide (ATH).
• Mbelata anwụrụ ọkụ dị mma, dị mma maka ngwa anwụrụ ọkụ dị ala.

2. Ihe ịma aka ngwa na ngwọta

3. Nhazi na usoro akwadoro

• Ụdị ihe atụ:
• Ntọala TPU/DMF: 100phr
• ZB nke nwere nano: 8 phr
• AHP: 15 phr
• Onye nnọchi anya mmiri (Tego 750W): 1 phr
• Isi ihe usoro:
• Buru ụzọ gbasaa ZB na DMF site na egwe ọka bead (nha nha ≤2μm) tupu ịgwakọta ya na slurry TPU.
• Gbatịkwuo oge ihicha (dịka ọmụmaatụ, nkeji 30) ka ịzenarị mmiri fọdụrụnụ na-emetụta ire ọkụ.

III. Nyocha mmekọrịta nke AHP + ZB Sistemụ

1. Mmetụta Ọkụ na-egbochi Ọkụ Synergistic

• Usoro gas-Ọkwa & Njikọ-Nhazi-Ọkwa:
• AHP na-enye phosphorus maka ịcha ọkụ, ebe ZB na-eme ka oyi akwa chara kwụsie ike ma na-egbochi ọkụ ọkụ.
• Ejikọtara LOI: 28-30%, UL94 V-0 (1.6mm) enwere ike nweta.
• Mgbochi anwụrụ ọkụ:
• ZB na-ebelata ikuku anwụrụ ọkụ site>50% (Nnwale Cone Calorimeter).

2. Aro na-atụnye arụmọrụ arụmọrụ

• Nkwụghachi arịa ụlọ arụrụ arụ:
• Tinye 2-3% TPU plasticizer (dịka ọmụmaatụ, polycaprolactone polyol) iji nọgide na-enwe mgbanwe (elongation> 300%).
• Jiri ntụ ntụ ultrafine (AHP/ZB <2μm) iji belata mfu ike ike.
• Usoro njikwa kwụsie ike:
• Jikwaa viscosity slurry na 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm) maka mkpuchi otu.

IV. Tụnyere ihe mgbaze ọkụ ọkụ dabere na mgbaze

V. Usoro mmejuputa akwadoro

1. Nlele nyocha nke ụlọ nyocha:

• Nyochaa AHP/ZB n'otu n'otu na ngwakọta (nbudata gradient: 10%, 15%, 20%).
• Nyochaa nkwụsi ike nke mgbasa (enweghị sedimentation mgbe awa 24 gasịrị), mgbanwe viscosity, na mkpuchi otu.

1. Nkwado-Ọkwa pilot:

• Hazie ọnọdụ ihicha (oge/okpomọkụ) wee nwalee ire ọkụ (UL94, LOI) na akụrụngwa akụrụngwa.
• Tụlee ọnụ ahịa: Ọ bụrụ AHP+ZB na-ebelata ụgwọ site>30% vs. Liquid FRs, ọ ga-ekwe omume n'ụzọ akụ na ụba.

1. Nkwadebe dị elu:

• Soro ndị na-ebubata ihe rụkọọ ọrụ iji mepụta AHP/ZB masterbatches (DMF dabere) agbasasịburu maka mmepụta dị mfe.

VI. Mmechi

Site na usoro mgbasa ozi a na-achịkwa, AHP na ZB nwere ike ịrụ ọrụ dị ka ndị na-ere ọkụ ọkụ maka mkpuchi TPU/DMF, nyere:

1. Mgbanwe ihu igwe + mgbasa ozi dị eluna-etinyere iji gbochie urughuru agglomeration.
2. AHP (isi) + ZB (onye na-arụkọ ọrụ ọnụ)na-edozi arụmọrụ na ọnụ ahịa.
3. Makaelu nghọta / mgbanwechọrọ, mmiri mmiri phosphorus-nitrogen FRs (dịka, Levagard 4090N) ka dị mma.

Sichuan Taifeng New Flame Retardant Co., Ltd.(ISO & REACH)

Email: lucy@taifeng-fr.com