Kev Tsim Khoom thiab Kev Ua Khoom Siv rau Epoxy Resin uas Tsis Muaj Halogen
Tus neeg yuav khoom tab tom nrhiav ib yam khoom uas tsis ua rau ib puag ncig puas tsuaj, tsis muaj halogen, thiab tsis muaj hlau hnyav uas tsim nyog rau epoxy resin nrog lub kaw lus kho anhydride, uas xav tau UL94-V0 ua raws. Tus neeg sawv cev kho yuav tsum yog tus neeg sawv cev kho epoxy kub siab nrog Tg siab dua 125 ° C, xav tau kev kho cua sov ntawm 85–120 ° C thiab qeeb qeeb ntawm chav tsev kub. Hauv qab no yog cov qauv qhia ntxaws raws li tus neeg yuav khoom thov.
I. Lub Tshuab Ua Kom Muaj Hluav Taws Kub
1. Lub Cev Muaj Zog Hluav Taws Kub: Phosphorus-Nitrogen Synergy
Cov Lus Qhia Txog Cov Khoom Uas Tiv Thaiv Tau Hluav Taws
| Hluav Taws Kub Tiv Thaiv | Lub tshuab | Kev Thauj Khoom Pom Zoo | Cov Lus Cim |
|---|---|---|---|
| Aluminium hypophosphite | Cov nplaim taws uas tsis sib xyaw ua ke, tsim cov txhuas phosphate char txheej | 10–15% | Tiv thaiv hluav taws kub thawj zaug, qhov kub thiab txias ntawm kev lwj. >300°C |
| Ammonium polyphosphate (APP) | Kev tiv thaiv hluav taws kub hnyiab, sib koom ua ke nrog txhuas hypophosphite | 5–10% | Yuav tsum muaj APP uas tiv taus kua qaub |
| Melamine cyanurate (MCA) | Qhov chaw nitrogen, ua rau phosphorus synergy zoo dua, txo cov pa luam yeeb | 3–5% | Txo cov dej ntws |
2. Cov Khoom Pab Tiv Thaiv Hluav Taws Xob thiab Cov Khoom Sib Koom Tes
Cov Lus Qhia Txog Cov Khoom Siv Tiv Thaiv Hluav Taws Xob
| Hluav Taws Kub Tiv Thaiv | Lub tshuab | Kev Thauj Khoom Pom Zoo | Cov Lus Cim |
|---|---|---|---|
| Zinc borate | Txhawb kev tsim cov char, txo cov teeb meem afterglow | 2–5% | Kev noj ntau dhau yuav ua rau qeeb qeeb ntawm kev kho |
| Zoo txhuas hydroxide | Kev txias endothermic, kev tshem tawm pa luam yeeb | 5–8% | Tswj kev thauj khoom (kom tsis txhob txo Tg) |
3. Piv txwv kev tsim qauv (Tag nrho cov khoom thauj: 20–30%)
Cov Qauv Tsim (Txog Tag Nrho Cov Khoom Siv Resin)
| Cheebtsam | Cov Ntsiab Lus (Txog Resin) |
|---|---|
| Aluminium hypophosphite | 12% |
| APP | 8% |
| MCA | 4% |
| Zinc borate | 3% |
| Aluminium hydroxide | 5% |
| Tag Nrho Cov Khoom Thauj Khoom | 32% (kho tau rau 25–30%) |
II. Cov Kauj Ruam Ua Cov Ntsiab Lus Tseem Ceeb
1. Kev Sib Tov thiab Kev Tawm Tsam
A. Kev Kho Mob Ua Ntej:
- Qhuav aluminium hypophosphite, APP, thiab MCA ntawm 80°C rau 2 teev (tiv thaiv kev nqus dej).
- Kho cov inorganic fillers (aluminium hydroxide, zinc borate) nrog ib tug silane coupling agent (piv txwv li, KH-550).
B. Kev Sib Tov Sib Xyaws:
- Epoxy resin + Cov tshuaj tiv thaiv hluav taws (60 ° C, do rau 1 teev)
- Ntxiv cov tshuaj tua kab mob anhydride (khaws qhov kub <80 ° C)
- Kev tshem tawm cov pa roj hauv lub tshuab nqus tsev (-0.095 MPa, 30 feeb)
2. Txheej Txheem Kho
Kauj Ruam Kho (Sib npaug ntawm kev ruaj khov ntawm hluav taws thiab Tg siab):
- 85°C / 2 teev (qeeb qeeb, txo cov npuas)
- 120°C / 2 teev (ua kom tiav cov tshuaj tiv thaiv anhydride)
- 150°C / 1 teev (ua kom qhov ceev ntawm kev sib txuas ua ke nce ntxiv, Tg >125°C)
3. Cov Lus Qhia Tseem Ceeb
- Kev tswj qhov viscosity: Yog tias viscosity siab dhau, ntxiv 5% reactive epoxy diluent (piv txwv li, AGE).
- Kev qhuav qeeb: Siv methylhexahydrophthalic anhydride (MeHHPA) los yog ntxiv 0.2% 2-ethyl-4-methylimidazole (ua rau qeeb qeeb hauv chav sov).
III. Kev Txheeb Xyuas Kev Ua Haujlwm & Kev Kho Kom Zoo
1. Kev Tiv Thaiv Hluav Taws:
- Kev xeem UL94 V0 (1.6 hli tuab): Xyuas kom lub sijhawm hlawv <10 vib nas this, tsis muaj dej ntws.
- Yog tias ua tsis tau: Ua kom cov txhuas hypophosphite (+3%) lossis APP (+2%) nce ntxiv.
2. Kev Ua Haujlwm Kub:
- Kev xeem DSC rau Tg: Yog tias Tg <125°C, txo cov txhuas hydroxide (txo Tg vim yog cov nyhuv endothermic).
3. Cov Khoom Siv Kho Tshuab:
- Yog tias lub zog flexural poob qis, ntxiv 1-2% nano-silica rau kev txhawb nqa.
IV. Tej Yam Yuav Muaj Tau & Kev Dais Teeb Meem
Cov Teeb Meem Tiv Thaiv Hluav Taws Kub & Cov Lus Teb
| Qhov teeb meem | Ua rau | Kev daws teeb meem |
|---|---|---|
| Kev kho tsis tiav | Kev nqus dej noo lossis kev cuam tshuam pH los ntawm cov tshuaj tua hluav taws | Cov khoom sau ua ntej kom qhuav, siv cov APP uas tiv taus kua qaub |
| Cov kua nplaum tsis zoo | Kev thauj khoom ntau dhau | Txo cov txhuas hydroxide rau 3% lossis ntxiv cov tshuaj diluent |
| Kev ua tsis tiav ntawm UL94 | Tsis txaus PN synergy | Nce MCA (mus txog 6%) lossis txhuas hypophosphite (mus txog 15%) |
V. Lwm Cov Qauv (Yog Xav Tau)
Hloov ib feem ntawm APP nrog DOPO derivatives (piv txwv li, DOPO-HQ):
- 8% DOPO-HQ + 10% txhuas hypophosphite txo tag nrho cov loading (~ 18%) thaum tswj kev ua tau zoo.
Qhov kev sib xyaw ua ke no sib npaug zos qhov tsis kam hluav taws, kev nyab xeeb rau ib puag ncig, thiab kev ua haujlwm kub siab. Kev sim me me (500g) raug pom zoo ua ntej kev tsim khoom tag nrho.
More info., pls contact lucy@taifeng-fr.com
Lub sijhawm tshaj tawm: Lub Xya Hli-25-2025
