Kugadzira uye Kugadzirisa Tekinoroji Yekugadzirisa Isina Halogen yeEpoxy Resin
Mutengi ari kutsvaga chinodzivisa moto chisingakuvadzi nharaunda, chisina halogen, uye chisina heavy-metal chakakodzera epoxy resin ine anhydride curing system, inoda kutevedzera UL94-V0. Chinogadzirisa chinofanira kunge chiri chinogadzirisa kupisa kwakanyanya che epoxy chine Tg pamusoro pe125°C, chinoda kupisa kupisa pa85–120°C uye chinononoka kuita patembiricha yemumba. Pazasi pane fomura yakadzama sezvakakumbirwa nemutengi.
I. Sisitimu Yekugadzira Inodzivirira Murazvo
1. Sisitimu Inodzivirira Moto Yepakati: Kubatana kwePhosphorus-Nitrogen
Tafura Yeruzivo Runodzivirira Murazvo
| Rinodzivirira Murazvo | Maitiro | Zvinokurudzirwa Kurodha | Mashoko |
|---|---|---|---|
| Aruminiyamu hypophosphate | Kunonoka kwemurazvo wechikamu chakavharidzirwa, kunoita aluminium phosphate char layer | 10–15% | Chinhu chinodzora moto zvakanyanya, tembiricha yekuora. >300°C |
| Ammonium polyphosphate (APP) | Kunonoka kwemurazvo wemoto mukati medumbu, kunoshanda pamwe chete nealuminium hypophosphite | 5–10% | APP inodzivirira acid inodiwa |
| Melamine cyanurate (MCA) | Chitubu cheNitrogen, chinowedzera kushanda pamwe chete kwephosphorus, uye chinodzivira utsi | 3–5% | Inoderedza kudonha kwemvura |
2. Zvinodzivirira Murazvo Uye Zvinobatsira Pakurwisa Moto
Tafura Yeruzivo Yekubatsira Inodzivisa Moto
| Rinodzivirira Murazvo | Maitiro | Zvinokurudzirwa Kurodha | Mashoko |
|---|---|---|---|
| Zinc borate | Inokurudzira kuumbwa kwechar, inoderedza kubwinya kwemashure | 2–5% | Kuwanda kwakawandisa kunogona kunonoka kupera |
| Aruminiyamu hydroxide yakanaka | Kutonhodza kwe endothermic, kudzvinyirira utsi | 5–8% | Kudzora kurodha (kudzivirira kuderedzwa kweTg) |
3. Muenzaniso wekugadzira (Kurodha Kwese: 20–30%)
Kuumbwa Kwepakutanga (Kuenderana Nehuwandu Hwese hweResin)
| Chikamu | Zviri Mukati (Zvichienderana neResin) |
|---|---|
| Aruminiyamu hypophosphate | 12% |
| APP | 8% |
| MCA | 4% |
| Zinc borate | 3% |
| Aruminiyamu hydroxide | 5% |
| Kurodha Kwese | 32% (inogona kugadziriswa kusvika 25–30%) |
II. Matanho Ekugadzirisa Makiyi
1. Kusanganisa uye Kuparadzira
A. Kurapwa Kusati Kwaitwa:
- Dry aruminiyamu hypophosphite, APP, uye MCA pa 80°C kwemaawa maviri (inodzivirira kunyudzwa kwemvura).
- Isa mushonga wezvinhu zvisina kugadzirwa (aluminium hydroxide, zinc borate) uchishandisa silane coupling agent (semuenzaniso, KH-550).
B. Kusanganisa Kutevedzana:
- Epoxy resin + zvinodzivisa moto (60°C, kurunga kweawa imwe)
- Wedzera anhydride curing agent (chengetedza tembiricha iri pasi pe80°C)
- Kubvisa gasi muchina wevacuum (-0.095 MPa, maminetsi makumi matatu)
2. Maitiro Ekurapa
Kugadzirisa Matanho (Kuenzanisa kugadzikana kunodzora moto uye Tg yakakwira):
- 85°C / 2h (kutanga zvishoma nezvishoma, kunoderedza mabundu)
- 120°C / 2h (inovimbisa kuti anhydride inogadzirwa zvakanaka)
- 150°C / 1h (inowedzera huwandu hwekubatanidza, Tg >125°C)
3. Zvinyorwa Zvinokosha
- Kudzora kupenya: Kana kupenya kwakanyanya, wedzera 5% reactive epoxy diluent (semuenzaniso, AGE).
- Kunonoka kupera: Shandisa methylhexahydrophthalic anhydride (MeHHPA) kana kuwedzera 0.2% 2-ethyl-4-methylimidazole (inononotsa mafambiro ekupisa kwemukamuri).
III. Kusimbiswa Kwekushanda & Kugadziriswa
1. Kudzivirira Murazvo:
- Kuedza kweUL94 V0 (ukobvu hwe1.6mm): Iva nechokwadi chekuti nguva yekupisa iri pasi pemasekonzi gumi, hapana mvura inodonhera.
- Kana zvikasashanda: Wedzera aruminiyamu hypophosphite (+3%) kana APP (+2%).
2. Kushanda Kwekupisa:
- Kuongororwa kweDSC kweTg: Kana Tg iri pasi pe125°C, deredza aruminiyamu hydroxide (inoderedza Tg nekuda kwemhedzisiro ye endothermic).
3. Zvimiro zveMichina:
- Kana simba reflexural richiderera, wedzera 1–2% nano-silica kuti usimbise.
IV. Matambudziko Angangoitika & Mhinduro
Matanho Anodzivirira Moto & Tafura Yemhinduro
| Dambudziko | Chikonzero | Mhinduro |
|---|---|---|
| Kurapa kusina kukwana | Kunyudzwa kwehunyoro kana kukanganiswa kwepH kubva kune zvinodzivisa moto | Zvizoro zvekuomesa usati waomesa, shandisa APP inodzivirira acid |
| Kuyerera kusina kunaka kwe resin | Kuzadza kwakawandisa | Deredza aruminiyamu hydroxide kusvika pa3% kana kuwedzera diluent |
| Kukundikana kweUL94 | Kusashanda pamwe chete kwePN kwakakwana | Wedzera MCA (kusvika 6%) kana aluminium hypophosphite (kusvika 15%) |
V. Imwe Nzira Yokugadzira (Kana Ichidiwa)
Tsiva chikamu cheAPP neDOPO derivatives (semuenzaniso, DOPO-HQ):
- 8% DOPO-HQ + 10% aluminium hypophosphite inoderedza mutoro wese (~18%) uku ichiramba ichishanda zvakanaka.
Musanganiswa uyu unoenzanisa kunonoka kwemoto, kuchengetedzeka kwezvakatipoteredza, uye kushanda zvakanaka pakupisa kwakanyanya. Kuedza kudiki (500g) kunokurudzirwa usati wagadzira zvizere.
More info., pls contact lucy@taifeng-fr.com
Nguva yekutumira: Chikunguru-25-2025
