Samaynta Ololka Halogen-free ee Nidaamka Dahaarka ee TPU Isticmaalka DMF Solvent
Nidaamyada daahan TPU ee isticmaalaya Dimethyl Formamide (DMF) sida dareeraha, isticmaalka aluminium hypophosphite (AHP) iyo zinc borate (ZB) sida ololka dib u celinta waxay u baahan tahay qiimeyn nidaamsan. Hoos waxaa ku yaal falanqayn faahfaahsan iyo qorshe fulin:
I. Falanqaynta suurtagalka ah ee Aluminium Hypophosphite (AHP)
1. Farsamaynta Ololka iyo Faa'iidooyinka
- Farsamaynta:
- Waxay ku duntaa heerkul sare si uu u dhaliyo asiidh fosfooreed iyo metaphosphoric, kor u qaadida samaynta char gudaha TPU (dib u dhac ku yimi ololka wejigiisa).
- Wuxuu sii daayaa PO · xagjirs si uu u joojiyo falcelinta silsiladda gubashada (dib u dhaca ololka wejiga gaaska).
- Faa'iidooyinka:
- Halogen-free, qiiq yar, suntan hoose, waafaqsan RoHS/REACH.
- Deganaanshaha kulaylka wanaagsan (heerkulka burburka ≈300 ° C), ku habboon hababka qallajinta TPU (sida caadiga ah <150 ° C).
2. Caqabadaha Codsiga iyo Xalka
| Loolan | Xalka |
| Kala firdhinta liidata ee DMF | Isticmaal AHP oogada wax laga beddelay (tusaale, wakiilka isku xidhka silane KH-550). Habka kala firdhinta hore: Ball-mill AHP oo leh DMF iyo kala firdhiya (tusaale, BYK-110) ilaa cabbirka walxaha <5μm. |
| Shuruudaha rarida sare (20-30%) | Isku-dhafka isku-dhafka ah ee ZB ama melamine cyanurate (MCA) si loo yareeyo wadarta guud ee rarka ilaa 15-20%. |
| Hufnaanta dahaarka oo la dhimay | Isticmaal AHP nano-cabbir ah (xajmiga qayb <1μm) ama ku qas dib-u-kicinta ololka (tusaale, fosfatada organic). |
3. Samaynta iyo Habka lagu taliyay
- Tusaale ahaan:
- Saldhig TPU/DMF: 100 phr
- AHP dushiisa wax laga beddelay: 20 phr
- Zinc borate (ZB): 5phr (isku-dhafka xakamaynta qiiqa)
- Kala firdhiya (BYK-110): 1.5 phr
- Habraaca Qodobbada Muhiimka ah:
- Hore ugu qas AHP kala qaybsan iyo qayb DMF ah oo ka hooseeya xiirid sare (≥3000 rpm, 30 min), ka dibna ku qas slurry TPU.
- Qalajinta dahaarka ka dib: 120-150 ° C, ku kordhi wakhtiga 10% si loo hubiyo uumiga DMF oo dhammaystiran.
II. Falanqaynta suurtagalka ah ee Zinc Borate (ZB)
1. Farsamaynta Ololka iyo Faa'iidooyinka
- Farsamaynta:
- Sameeya lakabka dhalo ee B₂O₃ heerkul sarreeya, xannibaya ogsijiinta iyo kulaylka (dib u dhigista ololka wajiga-condensed).
- Waxay siidaayaan biyaha xidhxidhan (~ 13%), oo nuugaya gaasaska guban kara oo qaboojiya nidaamka.
- Faa'iidooyinka:
- Saamayn xoog leh oo isku-dhafan leh AHP ama aluminium trihydroxide (ATH).
- Xakamaynta qiiqa heer sare ah, oo ku habboon codsiyada qiiq yar.
2. Caqabadaha Codsiga iyo Xalka
| Loolan | Xalka |
| Xasilooni firidhsan oo liidata | Isticmaal ZB oo cabbirkeedu yahay nano (<500nm) iyo wakiilada qoynta (tusaale, TegoDispers 750W). |
| Hufnaanta dib u dhigista ololka (loading sare ayaa loo baahan yahay) | U adeegso isku-dheelitir ahaan (5-10%) oo leh dab-demiska aasaasiga ah (tusaale, AHP ama fosfooraska organic). |
| Dabacsanaanta dahaarka oo la dhimay | Ku magdhow balaastikada (tusaale, DOP ama polyester polyols). |
3. Samaynta iyo Habka lagu taliyay
- Tusaale ahaan:
- Saldhig TPU/DMF: 100 phr
- nano-cabbir ZB: 8 phr
- AHP: 15 phr
- Wakiilka qoynta (Tego 750W): 1 phr
- Habraaca Qodobbada Muhiimka ah:
- Ku sii kala firdhi ZB gudaha DMF adoo isticmaalaya tubbada wax lagu shiidayo (xajmiga qayb ≤2μm) ka hor intaadan ku darin slurry TPU.
- Kordhi wakhtiga qalajinta (tusaale, 30 daqiiqo) si aad isaga ilaaliso qoyaanka haraaga ah ee saameeya dib u dhaca ololka.
III. Qiimaynta Isku-dhafka ah ee AHP + Nidaamka ZB
1. Saamaynta Dib u Celinta Ololka Isku-dhafka ah
- Wajiga-Gaaska & Isku-dhafka Wajiga Cusboonaaday:
- AHP waxay siisaa fosfooraska si loo soo dajiyo, halka ZB ay dejiso lakabka char oo ay xakamayso iftiinka ka dib.
- Isku darka LOI: 28-30%, UL94 V-0 (1.6mm) la gaari karo.
- Xakamaynta qiiqa:
- ZB waxa ay yaraynaysaa qiiqa sii daaya>50%
2. Talooyinka dheellitirka waxqabadka
- Magdhawga Hantida Makaanikada:
- Ku dar 2-3% balaastiiste TPU ah (tusaale, polycaprolactone polyol) si loo ilaaliyo dabacsanaanta (kordhinta>300%).
- Isticmaal budada ultrafine (AHP/ZB <2μm) si aad u yarayso luminta xoogga xajinta.
- Habka Xakamaynta Xasiloonida:
- Ku ilaali viscosity slurry at 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm)
IV. Isbarbardhigga Dib-u-Celinta Dareereaha Ku Salaysan Xalalka
| Halbeegga | AHP + Nidaamka ZB | Fosfooraska dareeraha ah-Nitrogen FR (tusaale, Levagard 4090N) |
| Soodejinaya | 20-30% | 15-25% |
| Dhibaatada Kala-firdhinta | Waxay u baahan tahay daawaynta ka hor (wax ka beddelka xiirid sare/korka sare) | Kala diri toos ah, looma baahna kala firdhiyo |
| Qiimaha | Hooseeyo (~$3-5/kg) | Sare (~$10-15/kg) |
| Saamaynta Deegaanka | Halogen-free, sunta hoose | Waxa ku jiri kara halogen (wax soo saarka ku tiirsan) |
| Dahaarka Hufnaanta | Semi-translucent ilaa mugdi | Si hufan oo hufan |
V. Tallaabooyinka Hirgelinta ee lagu taliyay
- Imtixaanka Miisaanka Shaybaadhka:
- Qiimee AHP/ZB si gaar ah iyo isku darka (loading gradient: 10%, 15%, 20%).
- Qiimee xasilloonida kala firidhsan (ma kala soocna 24 saac ka dib), viscosity isbedela, iyo daahan labbiska.
- Xaqiijinta Miisaanka tijaabada:
- Wanaaji xaaladaha qalajinta (waqtiga/heerkulka) oo tijaabi dib u dhacsiga ololka (UL94, LOI) iyo sifooyinka farsamada.
- Is barbar dhig kharashyada: Haddii AHP+ZB ay dhimayso kharashaadka>30% vs. dareeraha FRs, dhaqaale ahaan waa la heli karaa.
- Diyaarinta Miisaanka Sare:
- La shaqee alaab-qeybiyeyaasha si aad u horumariso AHP/ZB masterbatches-ka hore loo kala firdhiyey (DMF-ku-saleysan) ee wax soo saarka la fududeeyey.
VI. Gabagabo
Nidaamyada kala firdhinta la kantaroolay, AHP iyo ZB waxay u adeegi karaan dab-dejiyayaal waxtar leh oo loogu talagalay daaha TPU/DMF, oo la bixiyo:
- Wax ka beddelka dusha sare + kala firidhsan xiiran sarewaxaa lagu dabaqaa si looga hortago agglomeration qayb.
- AHP (hoose) + ZB (synergist)waxay dheellitiraysaa hufnaanta iyo kharashka.
- Waayohufnaan/debcaan sareShuruudaha, dareeraha fosfooraska-nitrogen FRs (tusaale, Levagard 4090N) ayaa weli ah mid la doorbidi karo.
Sichuan Taifeng New Flame Retardant Co., Ltd.(ISO & REACH)
Email: lucy@taifeng-fr.com
Waqtiga boostada: May-22-2025
