Ilana Idaduro Ina Ọfẹ Halogen-Ọfẹ ati Imọ-ẹrọ Ṣiṣẹ fun Resini Iposii
Onibara n wa ore-ayika, ti ko ni halogen, ati eru-irin-ọfẹ ina retardant ti o dara fun resini iposii pẹlu eto imularada anhydride, to nilo ibamu UL94-V0. Aṣoju imularada gbọdọ jẹ aṣoju imularada iposii iwọn otutu ti o ga pẹlu Tg loke 125°C, to nilo imularada ooru ni 85–120°C ati iṣesi lọra ni iwọn otutu yara. Ni isalẹ ni agbekalẹ alaye bi alabara ti beere.
I. Fire Retardant Formulation System
1. Mojuto Flame Retardant System: Fosforu-Nitrogen Synergy
Flame Retardant Information Table
| Ina Retardant | Ilana | Niyanju ikojọpọ | Awọn akiyesi |
|---|---|---|---|
| Aluminiomu hypophosphite | Didi-akoko ina idaduro, awọn fọọmu aluminiomu fosifeti char Layer | 10–15% | Idaduro ina akọkọ, iwọn otutu jijẹ. >300°C |
| Ammonium polyphosphate (APP) | Idaduro ina intumescent, ṣiṣẹpọ pẹlu hypophosphite aluminiomu | 5–10% | Acid-sooro APP beere |
| Melamine cyanurate (MCA) | Orisun Nitrogen, mu iṣọpọ irawọ owurọ pọ si, dinku ẹfin | 3–5% | Din sisu |
2. Oluranlọwọ ina Retardants ati Synergists
Iranlọwọ Flame Retardants Information Table
| Ina Retardant | Ilana | Niyanju ikojọpọ | Awọn akiyesi |
|---|---|---|---|
| Zinc borate | Ṣe atilẹyin idasile eedu, dinku afterglow | 2–5% | Awọn iye ti o pọju le fa fifalẹ imularada |
| Fine aluminiomu hydroxide | Itutu agbaiye endothermic, idinku ẹfin | 5–8% | Iṣakojọpọ iṣakoso (lati yago fun idinku Tg) |
3. Ilana Apeere (Ikojọpọ Lapapọ: 20–30%)
Ilana Ipilẹ (Ibaramu si Apapọ akoonu Resini)
| Ẹya ara ẹrọ | Akoonu (I ibatan si Resini) |
|---|---|
| Aluminiomu hypophosphite | 12% |
| APP | 8% |
| MCA | 4% |
| Zinc borate | 3% |
| Aluminiomu hydroxide | 5% |
| Lapapọ ikojọpọ | 32% (atunṣe si 25–30%) |
II. Key Processing Igbesẹ
1. Dapọ ati pipinka
A. Itọju iṣaaju:
- Aluminiomu hypophosphite gbẹ, APP, ati MCA ni 80°C fun wakati 2 (idilọwọ gbigba ọrinrin).
- Ṣe itọju awọn ohun elo inorganic (aluminiomu hydroxide, borate zinc) pẹlu oluranlowo silane (fun apẹẹrẹ, KH-550).
B. Ilana Idapọ:
- Resini Epoxy + Awọn idaduro ina (60°C, ru fun wakati kan)
- Ṣafikun aṣoju anhydride imularada (tọju iwọn otutu <80°C)
- Gbigbe igbale (-0.095 MPa, iṣẹju 30)
2. Ilana imularada
Igbesẹ Itọju (Ṣiṣe deede iduroṣinṣin ti ina ati Tg giga):
- 85°C/2h (ibẹrẹ lọra, dinku awọn nyoju)
- 120°C/2h (ṣe idaniloju ifaseyin anhydride pipe)
- 150°C/1h (ṣe alekun iwuwo ọna asopọ, Tg>125°C)
3. Awọn akọsilẹ bọtini
- Iṣakoso viscosity: Ti iki ba ga ju, ṣafikun 5% ifaseyin iposii diluent (fun apẹẹrẹ, AGE).
- Itọju idaduro: Lo methylhexahydrophthalic anhydride (MeHHPA) tabi fi 0.2% 2-ethyl-4-methylimidazole kun (o fa fifalẹ esi iwọn otutu yara).
III. Ijerisi iṣẹ & Atunṣe
1. Idaduro ina:
- Idanwo UL94 V0 (sisanra 1.6mm): Rii daju akoko sisun <10 iṣẹju-aaya, ko si ṣiṣan.
- Ti o ba kuna: Ṣe alekun hypophosphite aluminiomu (+3%) tabi APP (+2%).
2. Iṣe Ooru:
- Idanwo DSC fun Tg: Ti Tg <125°C, dinku hydroxide aluminiomu (kekere Tg nitori ipa endothermic).
3. Awọn ohun-ini ẹrọ:
- Ti agbara iyipada ba lọ silẹ, ṣafikun 1–2% nano-silica fun imudara.
IV. O pọju oran & Solusan
Ina Retardant Issues & Solutions Table
| Oro | Nitori | Ojutu |
|---|---|---|
| Iwosan ti ko pe | Gbigbe ọrinrin tabi kikọlu pH lati awọn idaduro ina | Pre-gbẹ fillers, lo acid-sooro APP |
| Isan resini ti ko dara | Nkojọpọ kikun kikun | Din aluminiomu hydroxide si 3% tabi fi diluent kun |
| UL94 ikuna | Aiṣedeede PN ti ko to | Mu MCA pọ si (si 6%) tabi hypophosphite aluminiomu (si 15%) |
V. Ilana Yiyan (Ti o ba nilo)
Rọpo apakan ti APP pẹlu awọn itọsẹ DOPO (fun apẹẹrẹ, DOPO-HQ):
- 8% DOPO-HQ + 10% aluminiomu hypophosphite dinku ikojọpọ lapapọ (~ 18%) lakoko mimu iṣẹ ṣiṣe.
Ijọpọ yii ṣe iwọntunwọnsi idaduro ina, aabo ayika, ati iṣẹ ṣiṣe iwọn otutu giga. Awọn idanwo iwọn-kekere (500g) ni a ṣe iṣeduro ṣaaju iṣelọpọ kikun.
More info., pls contact lucy@taifeng-fr.com
Akoko ifiweranṣẹ: Jul-25-2025
