Reba Flame-Retardant formulaire ya Thermosetting Acrylic Adhesive
Kugira ngo uhuze na UL94 V0 flame-retardant ibisabwa kugirango ibishishwa bya acrilique ya termosetting, urebye ibiranga flame retardants hamwe nibisobanuro bya sisitemu ya thermosetting, hateganijwe uburyo bukurikira bwo gusesengura no gusesengura byingenzi:
I. Igishushanyo mbonera cyamahame & Thermosetting Sisitemu Ibisabwa
- Ugomba guhuza ubushyuhe bukiza (mubisanzwe 120–180 ° C)
- Flade retardants igomba kwihanganira ubushyuhe bwo hejuru (irinde kubora)
- Menya neza ko itandukanyirizo rihamye muri sisitemu ndende
- Kuringaniza nyuma yo gukiza imbaraga zumukanishi no gukora neza
II. Igishushanyo mbonera cya Flame-Retardant Sisitemu Igishushanyo
Flame Retardant Imikorere & Thermoset Guhuza
| Flame Retardant | Uruhare rwibanze | Guhuza Thermoset | Gusabwa Kuremera |
|---|---|---|---|
| Ultra-nziza ATH | Main FR: Endothermic dehydrasiyo, gazi ya fasi | Irasaba guhindura isura (anti-agglomeration) | ≤35% (gupakira birenze urugero bigabanya guhuza) |
| Aluminium hypophosphite | Synergist: Cat cataliste, scavenger radical (PO ·) | Kubora. temp. > 300 ° C, ibereye gukira | 8-12% |
| Zinc borate | Kongera char: Gukora inzitizi yikirahure, kugabanya umwotsi | Gukomatanya na ATH (Al-BO char) | 5-8% |
| MCA (Melamine cyanurate) | Gazi-icyiciro FR: Irekura NH₃, ibuza gutwikwa | Kubora. temp. 250–300 ° C (gukiza ubushyuhe. <250 ° C) | 3-5% |
III. Basabwe gukora (Uburemere%)
Amabwiriza yo gutunganya ibice
| Ibigize | Ikigereranyo | Ingingo z'ingenzi zo gutunganya |
|---|---|---|
| Thermoset acrylic resin | 45-50% | Ubwoko buke-bworoshye (urugero, epoxy acrylate) kugirango yuzuze byinshi |
| Ubuso bwahinduwe kuri ATH (D50 <5µm) | 25-30% | Mbere yo kuvurwa hamwe na KH-550 silane |
| Aluminium hypophosphite | 10-12% | Mbere-ivanze na ATH, yongewe mubice |
| Zinc borate | 6-8% | Wongeyeho na MCA; irinde gutesha agaciro cyane |
| MCA | 4-5% | Icyiciro cya nyuma cyihuta cyo kuvanga (<250 ° C) |
| Gutatana (BYK-2152 + ibishashara bya PE) | 1.5-2% | Iremeza ko icyuzuzo cyuzuye |
| Umukozi wo guhuza (KH-550) | 1% | Mbere yo kuvurwa kuri ATH / hypophosphite |
| Umuti ukiza (BPO) | 1-2% | Umukoresha muto-temp kugirango akire vuba |
| Umukozi urwanya gutuza (Aerosil R202) | 0.5% | Thixotropic anti-sedimentation |
IV. Igenzura ryingenzi
1. Inzira yo Gutatanya
- Mbere yo kuvura: ATH & hypophosphite yashizwemo 5% KH-550 / igisubizo cya Ethanol (2h, 80 ° C yumisha)
- Kuvanga urukurikirane:
- Resin + ikwirakwiza → Kuvanga umuvuduko muke → Ongeraho ATH / hypophosphite → Ikwirakwizwa ryihuta (2500 rpm, 20 min) → Ongeramo zinc borate / MCA mix Kuvanga umuvuduko muke (irinde kwangirika kwa MCA)
- Ibikoresho: Kuvanga umubumbe (vacuum degassing) cyangwa urusyo ruzunguruka eshatu (kuri poro ya ultrafine)
2. Gukiza Optimisation
- Gukiza intambwe: 80 ° C / 1h (pre-gel) → 140 ° C / 2h (nyuma yo gukira, irinde kubora MCA)
- Kugenzura igitutu: 0.5-1 MPa kugirango wirinde kuzuza gutuza
3. Uburyo bukoreshwa
- ATH + Hypophosphite: Ifata char ya AlPO₄ ishimangirwa mugihe ushakisha radicals (PO ·)
- Zinc borate + MCA: Gazi-ikomeye ya bariyeri ebyiri (NH₃ dilution + ikirahuri cyashongeshejwe)
V. Ingamba zo Guhuza Imikorere
Ibibazo Rusange & Ibisubizo
| Ikibazo | Impamvu | Igisubizo |
|---|---|---|
| Gutwika | Ubukonje buke bwo gushonga | Ongera MCA kuri 5% + hypophosphite kuri 12%, cyangwa wongereho 0.5% micropowder ya PTFE |
| Nyuma yo gukira ubugome | Kurenza urugero kuri ATH | Mugabanye ATH kuri 25% + 5% nano-CaCO₃ (gukomera) |
| Ububiko | Thixotropy | Ongera silika kuri 0.8% cyangwa uhindure kuri BYK-410 |
| LOI <28% | Gazi idahagije-icyiciro cya FR | Ongeramo 2% fosifori itukura cyangwa 1% nano-BN |
VI. Ibipimo byo Kwemeza
- UL94 V0: 3.2 mm ingero, igihe cyose cya flame <50 s (nta gutwika ipamba)
- LOI ≥30% (margin umutekano)
- Ibisigisigi bya TGA> 25% (800 ° C, N₂)
- Kuringaniza imashini: Imbaraga zingana> 8 MPa, imbaraga zo gukata> 6 MPa
Ibyingenzi
- Kugera kuri V0 mugihe ukomeza ubunyangamugayo.
- Ibigeragezo bito (50g) byasabwe mbere yo gupima.
- Kubikorwa byisumbuyeho: 2–3% ibikomoka kuri DOPO (urugero, fosifenanthrene) birashobora kongerwamo.
Iyi formulaire ituma hubahirizwa amahame akomeye ya flame-retardant mugihe atezimbere imikorere nogukoresha amaherezo.
Igihe cyo kohereza: Jul-01-2025
