Hangarau Hangarau Whakamuri Kore-Halogen me te Hangarau Tukatuka mo te Resin Epoxy
Kei te rapu te kaihoko i tetahi whakamaarama-a-taiao, kore-halogen, me te taumaha-maama-kore te mura o te mura e tika ana mo te kapia epoxy me te punaha whakaora anhydride, e hiahia ana ki te UL94-V0. Ko te kaitao rongoa me waiho he kaikawe rongoa epoxy teitei me te Tg i runga ake i te 125°C, me whakamaarama te wera i te 85–120°C me te puhoi te tauhohenga i te pāmahana rūma. Kei raro nei te whakatakotoranga taipitopito i tonoa e te kaihoko.
I. Pūnaha Whakatairanga Whakamutunga mura
1. Pūnaha Whakamuri Muri Matua: Phosphorus-Nitrogen Synergy
Ripanga Panui mo te mura o te ahi
| Te mura ahi | Hangaia | Kua Manakohia te Uta | Nga korero |
|---|---|---|---|
| Konumohe hypophosphite | Ko te whakakoi i te mura o te ahi, ka hanga he paparanga konumohe phosphate char | 10–15% | Te mura o te mura tuatahi, te mahana pirau. >300°C |
| Amonium polyphosphate (APP) | Te mura o te mura, ka hono tahi me te konumohe hypophosphite | 5–10% | APP ātete waikawa e hiahiatia ana |
| Melamine cyanurate (MCA) | Ko te puna hauota, ka whakanui i te ūkuikui, ka pehi i te auahi | 3–5% | Ka whakaiti i te pupuhi |
2. Nga Kaitiaki Mua Awhina me nga Kaihonohono
Te Ripanga Korero mo te Whakaoranga i te mura o te ahi
| Te mura ahi | Hangaia | Kua Manakohia te Uta | Nga korero |
|---|---|---|---|
| Zinc borate | Ka whakatairanga i te hanga waro, ka pehi i te kanapa | 2–5% | Ko te nui o nga moni ka puhoi te rongoa |
| Konumohe waikawa pai | Te whakamahana endothermic, te pehi auahi | 5–8% | Whakahaere uta (kia karo i te whakahekenga Tg) |
3. Tauira Whakaritenga (Tapeke Uta: 20–30%)
Hanga Turanga (E pa ana ki te Ihirangi Resin Tapeke)
| Waehanga | Ihirangi (E pa ana ki te Resin) |
|---|---|
| Konumohe hypophosphite | 12% |
| APP | 8% |
| MCA | 4% |
| Zinc borate | 3% |
| Konumohe hydroxide | 5% |
| Uta Tapeke | 32% (ka taea te whakarite ki te 25–30%) |
II. Nga Mahi Tukatuka Matua
1. Te Ranu me te Marara
A. Mahi-mua:
- Ko te hypophosphite konumohe maroke, te APP, me te MCA i te 80 ° C mo nga haora 2 (ka aukati i te whakauru makuku).
- Tuhia nga whakakī parakore (te konumohe waiwaro, te zinc borate) me te maataki hono silane (hei tauira, KH-550).
B. Raupapa Whakaranu:
- Te kapia epoxy + Te aukati mura (60°C, whakaohokia mo te 1h)
- Taapirihia he rongoa whakaora anhydride (kia mau te pāmahana <80°C)
- Te whakaheke hau (-0.095 MPa, 30 min)
2. Tukanga Whakaora
Te Whakawhanaunga (Whakataurite i te pumau o te mura me te Tg teitei):
- 85°C / 2h (he puhoi te tiimata, ka whakaiti i nga mirumiru)
- 120°C / 2h (whakapapa katoa te tauhohenga waiwai)
- 150°C / 1h (whakanuia te kiato hononga, Tg >125°C)
3. Nga korero matua
- Te mana o te pokey: Mēnā he nui rawa te pokey, tāpirihia te 5% waimeha epoxy reactive (hei tauira, AGE).
- Te rongoa kua roa: Whakamahia te methylhexahydrophthalic anhydride (MeHHPA) ka taapirihia ranei te 0.2% 2-ethyl-4-methylimidazole (ka whakaroa te tauhohenga o te ruma-mahana).
III. Manatokonga Mahi & Whakatikatika
1. Te mura o te mura:
- Whakamātautau UL94 V0 (1.6mm te matotoru): Me whakarite te wa wera <10 hēkona, kia kore e pupuhi.
- Ki te rahua: Whakanuia te konumohe hypophosphite (+3%), APP ranei (+2%).
2. Mahi Weariki:
- Whakamātautau DSC mō Tg: Ki te Tg <125°C, whakaitihia te waihā konumohe (whakahekea te Tg nā te pānga endothermic).
3. Āhuatanga Miihini:
- Mēnā ka heke te kaha flexible, tāpirihia te 1–2% nano-silica hei whakakaha.
IV. Nga take me nga otinga
Ripanga Whakawaahi me te Ripanga Rongoa
| Putanga | Take | Rongoā |
|---|---|---|
| Te rongoa kore | Te urunga makuku, te wawaotanga pH ranei mai i nga mura ahi | Ko nga whakakii i mua i te maroke, whakamahia te APP-waikawa |
| He kino te rere kapia | He nui te utaina whakakii | Whakaitihia te konumohe waiwai ki te 3%, ka taapirihia ranei te waimeha |
| UL94 rahunga | He iti rawa te PN mahitahi | Whakanuia te MCA (ki te 6%) ranei konumohe hypophosphite (ki te 15%) |
V. Whakaritenga rereke (Ki te Hiahia)
Whakakapihia tetahi waahanga o te APP ki nga momo DOPO (hei tauira, DOPO-HQ):
- 8% DOPO-HQ + 10% konumohe hypophosphite ka whakaiti i te utaina katoa (~ 18%) i te wa e mau tonu ana te mahi.
Ko tenei huinga ka whakataurite i te mura o te mura, te haumaru o te taiao, me te mahi i te pāmahana teitei. Ko nga whakamatautau iti-iti (500g) ka tūtohuhia i mua i te hanga-katoa.
More info., pls contact lucy@taifeng-fr.com
Wā tuku: Hūrae-25-2025
