Ndị na-akwụsị ire ọkụ nke phosphorus-Nitrogen nwere ike nweta ọkwa V0 na rọba silicone?
Mgbe ndị ahịa na-ajụ maka iji naanị aluminom hypophosphite (AHP) ma ọ bụ AHP + MCA nchikota maka ire ọkụ na-enweghị halogen na rọba silicone iji nweta ọkwa V0, azịza ya bụ ee-mana achọrọ mgbanwe usoro onunu dabere na ihe ọkụ ọkụ chọrọ. N'okpuru bụ ndụmọdụ ndị akọwapụtara maka ọnọdụ dị iche iche:
1. Iji Aluminom Hypophosphite (AHP) naanị
Ọdabara dị: Maka UL94 V-1/V-2 chọrọ ma ọ bụ ngwa nwere mmetụta maka isi mmalite nitrogen (dịka ọmụmaatụ, na-ezere mmetụta ụfụfụ sitere na MCA nke nwere ike imetụta ọdịdị).
Nhazi akwadoro:
- rọba ntọala: methyl vinyl silicone roba (VMQ, 100 phr)
- Aluminom hypophosphite (AHP): 20-30 phr
- Ọdịnaya phosphorus dị elu (40%); 20 phr na-enye ~ 8% ọdịnaya phosphorus maka nkwụsị ọkụ bụ isi.
- Maka UL94 V-0, mụbaa ruo 30 phr (nwere ike imetụta ihe eji arụ ọrụ).
- Filler na-eme ka ọ dị ike: silica fumed (10-15 phr, na-akwado ike)
- Ihe mgbakwunye: mmanụ silicone hydroxyl (2 phr, na-eme ka nhazi ya dịkwuo mma) + onye na-agwọ ọrịa (peroxide ma ọ bụ platinum)
Njirimara:
- AHP naanị na-adabere na condensed-phase ire ire retardancy (char formation), na-eme ka nke ọma oxygen index (LOI) nke silicone roba ma na-enwe oke anwụrụ ọkụ.
- Usoro ọgwụgwọ dị elu (> 25 phr) nwere ike ịbawanye ike ihe onwunwe; ịgbakwụnye 3–5 phr zinc borate nwere ike melite ogo cha cha.
2. AHP + MCA Nchikota
Ọnọdụ ọdabara: UL94 V-0 chọrọ, na-achọ usoro mgbakwunye dị ala yana mmekọrịta ọkụ na-ere ọkụ na gas-phase retardant.
Nhazi akwadoro:
- rọba ntọala: VMQ (100 phr)
- Aluminom hypophosphite (AHP): 12-15 phr
- Na-enye isi iyi nke phosphorus, na-akwalite nhazi char.
- MCA: 8–10 phr
- Nitrogen na-emekọrịta ihe na AHP (mmetụta PN), na-ahapụ gas inert (dịka ọmụmaatụ, NH₃) iji gbochie mgbasa ọkụ.
- Ihe na-eme ka ọ dị elu: silica fumed (phr 10)
- Ihe mgbakwunye: onye na-ahụ maka njikọta Silane (1 phr, na-eme ka mgbasawanye) + onye na-agwọ ọrịa
Njirimara:
- Ngụkọta usoro ọgwụgwọ ire ọkụ: ~ 20-25 phr, dị ala karịa AHP naanị.
- MCA na-ebelata usoro onyunyo AHP mana ọ nwere ike imetụta nghọta (nano-MCA tụrụ aro ma ọ bụrụ na achọrọ nghọta).
3. Ntụnyere isi ihe
| Nhazi | Ọkụ na-atụ anya ya | Ngụkọta usoro onunu ogwu (phr) | Uru & ọghọm |
|---|---|---|---|
| AHP naanị (20phr) | UL94 V-1 | 20 | Dị mfe, ọnụ ala; V-0 chọrọ ≥30 phr, yana mmebi arụmọrụ. |
| AHP naanị (phr 30) | UL94 V-0 | 30 | Nnukwu ọkụ retardancy mana ụbara ike ike na belata elongation. |
| AHP 15 + MCA 10 | UL94 V-0 | 25 | Mmetụta mmekọrịta, ịrụ ọrụ ziri ezi - akwadoro maka ule mbụ. |
4. Ntụnye nnwale
- Nnwale izizi maka AHP + MCA (15+10 phr): Ọ bụrụ na enwetara V-0, jiri nwayọ belata AHP (dịka ọmụmaatụ, 12+10).
- Nanị nkwenye AHP: Malite na 20 phr, mụbaa site na 5 phr kwa ule iji nyochaa LOI na UL94, nyochaa mgbanwe akụrụngwa.
- Mkpa ịkwụsị anwụrụ ọkụ: Tinye 3-5 phr zinc borate na usoro ndị a dị n'elu iji belata anwụrụ ọkụ na-emebighị ire ọkụ.
5. Ụfọdụ Ammonium Polyphosphate kpuchie
Anyị nwere ụfọdụ ndị ahịa nke ọma na-eji TF-201G maka rọba silicon.
Maka nkwalite ọzọ, tụlee itinye obere aluminom hydroxide (10-15 phr) iji belata ụgwọ ọrụ n'ozuzu ya, n'agbanyeghị na nke a na-abawanye ọdịnaya njupụta.
More inof., pls contact lucy@taifeng-fr.com
Oge nzipu: Jul-25-2025
