Halogen-Flame Retardant Formulaire ya TPU yo Kwifashisha DMF Solvent
Kuri sisitemu yo gutwikira TPU ukoresheje Dimethyl Formamide (DMF) nkigisubizo, gukoresha aluminium hypophosphite (AHP) na zinc borate (ZB) nkumuriro wa flame bisaba isuzuma rifatika. Hano hepfo ni isesengura rirambuye na gahunda yo kuyishyira mu bikorwa:
I. Isesengura rishoboka rya Aluminium Hypophosphite (AHP)
1. Uburyo bwa Flame Retardant Mechanism hamwe nibyiza
- Urwego:
- Yangirika ku bushyuhe bwo hejuru kugirango itange aside fosifori na metafosifike, iteza imbere imiterere ya char muri TPU (fonctionnement fase retardancy).
- Isohora PO · radicals kugirango ihagarike urunigi rwaka (gaze-fase flame retardancy).
- Ibyiza:
- Halogen-yubusa, umwotsi muke, uburozi buke, bujyanye na RoHS / REACH.
- Ubushyuhe bwiza bwumuriro (ubushyuhe bwangirika ≈300 ° C), buberanye no gukama TPU (mubisanzwe <150 ° C).
2. Ibibazo byo gusaba no gukemura
| Ikibazo | Igisubizo |
| Gutatana nabi muri DMF | Koresha ubuso bwahinduwe AHP (urugero, guhuza silane agent KH-550). Imbere yo gutatanya: Ball-urusyo AHP hamwe na DMF no gutatanya (urugero, BYK-110) kugeza ingano ya <5μm. |
| Ibisabwa byinshi (20-30%) | Gukomatanya hamwe na ZB cyangwa melamine cyanurate (MCA) kugirango ugabanye imizigo yose kuri 15-20%. |
| Kugabanya gutwikira neza | Koresha nano-nini ya AHP (ingano yubunini <1μm) cyangwa uvange hamwe na retardants ya flame idasobanutse (urugero, fosifike kama). |
3. Basabwe gushiraho no gutunganya
- Urugero:
- TPU / DMF shingiro: interuro 100
- Ubuso bwahinduwe AHP: interuro 20
- Zinc borate (ZB): interuro 5 (synergy yo guhagarika umwotsi)
- Gutatana (BYK-110): 1.5 interuro
- Gutunganya Ingingo z'ingenzi:
- Banza uvange AHP hamwe na DMF itatanye kandi igice cyayo munsi yicyuma kinini (0003000 rpm, 30 min), hanyuma uvange na TPU.
- Kuma nyuma yo gukama: 120-150 ° C, ongera igihe cya 10% kugirango DMF ihumeke neza.
II. Isesengura rishoboka rya Zinc Borate (ZB)
1. Uburyo bwa Flame Retardant Mechanism hamwe nibyiza
- Urwego:
- Ikora ikirahuri cya B₂O₃ ku bushyuhe bwinshi, ikabuza ogisijeni nubushyuhe (fonctionnement fase retardancy).
- Kurekura amazi aboshye (~ 13%), kugabanya imyuka yaka no gukonjesha sisitemu.
- Ibyiza:
- Ingaruka ikomeye yo guhuza hamwe na AHP cyangwa aluminium trihydroxide (ATH).
- Guhagarika umwotsi mwiza, nibyiza kubisabwa umwotsi muke.
2. Ibibazo byo gusaba no gukemura
| Ikibazo | Igisubizo |
| Gukwirakwiza nabi | Koresha nano-nini ya ZB (<500nm) hamwe nogukoresha amazi (urugero, TegoDispers 750W). |
| Flame retardant ikora neza (gupakira cyane birakenewe) | Koresha nka synergiste (5-10%) hamwe na flame primaire (urugero, AHP cyangwa fosifore kama). |
| Kugabanya guhindagurika | Indishyi hamwe na plasitike (urugero, DOP cyangwa polyester polyole). |
3. Basabwe gushiraho no gutunganya
- Urugero:
- TPU / DMF shingiro: interuro 100
- Nano-nini ya ZB: 8 interuro
- AHP: interuro 15
- Umukozi wohanagura (Tego 750W): interuro 1
- Gutunganya Ingingo z'ingenzi:
- Mbere yo gutatanya ZB muri DMF ukoresheje urusyo (ingano ya ≤2μm) mbere yo kuvanga na TPU.
- Ongera igihe cyo kumisha (urugero, 30 min) kugirango wirinde ubushuhe busigaye bugira ingaruka kumuriro.
III. Isuzuma rya Synergistic ya Sisitemu ya AHP + ZB
1. Ingaruka za Flame Retardant Ingaruka
- Gazi-Icyiciro & Igicucu-Icyiciro Cyimbaraga:
- AHP itanga fosifore yo kwishyuza, mugihe ZB ituza char char kandi igahagarika nyuma.
- LOI ihuriweho: 28-30%, UL94 V-0 (1,6mm) igerwaho.
- Kurwanya Umwotsi:
- ZB igabanya imyuka ihumanya na> 50% (Ikizamini cya Calorimeter).
2. Ibyifuzo byo Kuringaniza Ibyifuzo
- Indishyi z'umutungo wa mashini:
- Ongeramo 2-3% ya plastike ya TPU (urugero, polycaprolactone polyol) kugirango ukomeze guhinduka (kuramba> 300%).
- Koresha ifu ya ultrafine (AHP / ZB <2μm) kugirango ugabanye gutakaza imbaraga.
- Igenzura rihamye:
- Komeza kwifata neza kuri 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm) kugirango ushire hamwe.
IV. Gereranya na Solvent-ishingiye kuri Liquid Flame Retardants
| Parameter | Sisitemu ya AHP + ZB | Amazi ya Fosifore-Azote FR (urugero, Levagard 4090N) |
| Kuremera | 20-30% | 15-25% |
| Gutatana Biragoye | Irasaba mbere yo kuvurwa (shear yo hejuru / guhindura isura) | Iseswa ritaziguye, nta gutatanya gukenewe |
| Igiciro | Hasi (~ $ 3-5 / kg) | Hejuru (~ $ 10-15 / kg) |
| Ingaruka ku bidukikije | Halogen-yubusa, uburozi buke | Irashobora kuba irimo halogene (ibicuruzwa-biterwa) |
| Gukorera mu mucyo | Igice cya-cyoroshye kuri opaque | Biragaragara cyane |
V. Basabwe Intambwe Zishyirwa mubikorwa
- Ikizamini cya Laboratoire:
- Suzuma AHP / ZB kugiti cyawe no guhuza (gupakira buhoro buhoro: 10%, 15%, 20%).
- Suzuma itandukanyirizo rihamye (nta gutembera nyuma ya 24h), ihinduka ryijimye, hamwe nuburinganire.
- Kwemeza indege:
- Hindura uburyo bwo kumisha (igihe / ubushyuhe) hanyuma ugerageze gucana umuriro (UL94, LOI) hamwe nubukanishi.
- Gereranya ibiciro: Niba AHP + ZB igabanya ibiciro kuri> 30% na fluid FRs, birashoboka mubukungu.
- Gutegura Igipimo:
- Gufatanya nabatanga isoko kugirango utezimbere mbere ya AHP / ZB ibishushanyo mbonera (bishingiye kuri DMF) kugirango umusaruro woroshye.
VI. Umwanzuro
Hamwe nimikorere ikwirakwizwa, AHP na ZB birashobora kuba nk'umuriro utanga umuriro wa TPU / DMF, watanzwe:
- Guhindura isura + hejuru-yo gutatanyani Byakoreshejwe Kuri Kurinda Ibice.
- AHP (primaire) + ZB (synergiste)kuringaniza imikorere nigiciro.
- Kurigukorera mu mucyo / guhindukaibisabwa, fosifore-azote ya FRs (urugero, Levagard 4090N) ikomeza kuba nziza.
Sichuan Taifeng New Flame Retardant Co., Ltd. (ISO & REACH)
Email: lucy@taifeng-fr.com
Igihe cyo kohereza: Gicurasi-22-2025
