Ƙirƙirar Ƙarƙashin Ƙarƙashin Ƙarƙashin Halogen da Fasahar Sarrafa don Resin Epoxy
Abokin ciniki yana neman abin da ya dace da muhalli, mara halogen, kuma mai ɗaukar wuta mara nauyi-ƙarfe wanda ya dace da resin epoxy tare da tsarin warkarwa na anhydride, yana buƙatar bin UL94-V0. Dole ne wakili mai warkarwa ya zama wakili mai zafi mai zafi tare da Tg sama da 125 ° C, yana buƙatar maganin zafi a 85-120 ° C da jinkirin amsawa a cikin zafin jiki. A ƙasa akwai cikakken tsari kamar yadda abokin ciniki ya buƙata.
I. Tsarin Ƙirƙirar Harshen Harshe
1. Tsarin Ƙunƙarar Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararru-Nitrogen Synergy
Teburin Bayanin Tsare Wuta
| Mai hana wuta | Makanikai | An Shawarar Loading | Jawabi |
|---|---|---|---|
| Aluminum hypophosphite | Matsakaicin lokaci na harshen wuta, yana samar da Layer phosphate char Layer | 10-15% | Farkon harshen wuta, zafin bazuwar. >300°C |
| Ammonium polyphosphate (APP) | Rashin jinkirin harshen wuta, yana aiki tare da aluminum hypophosphite | 5-10% | Ana buƙatar APP mai jurewa acid |
| Melamine cyanurate (MCA) | Tushen Nitrogen, yana haɓaka haɗin gwiwar phosphorus, yana hana hayaki | 3-5% | Yana rage ɗigowa |
2. Matsalolin wuta na taimako da masu haɗin gwiwa
Teburin Bayani na Retardants na Ƙari
| Mai hana wuta | Makanikai | An Shawarar Loading | Jawabi |
|---|---|---|---|
| Zinc borate | Yana haɓaka samuwar char, yana kashe bayan haske | 2-5% | Yawan yawa na iya jinkirin warkewa |
| Kyakkyawan aluminum hydroxide | Endothermic sanyaya, kashe hayaki | 5-8% | Sarrafa lodi (don guje wa rage Tg) |
3. Samfuran Misali (Jimlar Loading: 20-30%)
Ƙirƙirar Tushen (dangane da Jumlar Gudun Abun Ciki)
| Bangaren | Abun ciki (dangane da guduro) |
|---|---|
| Aluminum hypophosphite | 12% |
| APP | 8% |
| MCA | 4% |
| Zinc borate | 3% |
| Aluminum hydroxide | 5% |
| Jimlar Loading | 32% (daidaitacce zuwa 25-30%) |
II. Maɓallin Sarrafa Matakan
1. Cakuda da Watsewa
A. Kafin Magani:
- Busasshiyar hypophosphite aluminum, APP, da MCA a 80 ° C na awanni 2 (yana hana ɗaukar danshi).
- Kula da filaye na inorganic (aluminum hydroxide, zinc borate) tare da silane mai haɗawa (misali, KH-550).
B. Jerin Hadawa:
- Epoxy resin + Flame retardants (60°C, motsawa na awa 1)
- Ƙara wakili na anhydride (a kiyaye zafin jiki <80°C)
- Matsakaicin cirewa (-0.095 MPa, 30 min)
2. Tsarin Magani
Magance Mataki (Ma'auni na kwanciyar hankali da babban Tg):
- 85°C/2h (hannun farawa, yana rage kumfa)
- 120 ° C / 2h (yana tabbatar da cikakken amsawar anhydride)
- 150°C/1h (yana ƙãra giciye mai yawa, Tg>125°C)
3. Mabuɗin Bayani
- Ikon danko: Idan danko ya yi yawa, ƙara 5% reactive epoxy diluent (misali, AGE).
- Jinkirin jinkiri: Yi amfani da methylhexahydrophthalic anhydride (MeHHPA) ko ƙara 0.2% 2-ethyl-4-methylimidazole (yana rage yawan zafin ɗaki).
III. Tabbatar da Aiki & Gyarawa
1. Dagewar harshen wuta:
- Gwajin UL94 V0 (kauri 1.6mm): Tabbatar da lokacin ƙonewa <10 sec, babu digo.
- Idan ya kasa: Ƙara aluminum hypophosphite (+3%) ko APP (+2%).
2. Ayyukan zafi:
- Gwajin DSC don Tg: Idan Tg <125°C, rage aluminum hydroxide (ƙananan Tg saboda tasirin endothermic).
3. Kayayyakin Injini:
- Idan ƙarfin sassauci ya ragu, ƙara 1-2% nano-silica don ƙarfafawa.
IV. Matsaloli masu yiwuwa & Magani
Batutuwa masu hana harshen wuta & Teburin Magani
| Batu | Dalili | Magani |
|---|---|---|
| Maganin da bai cika ba | Cire danshi ko tsoma bakin pH daga masu hana wuta | Pre-bushe filaye, yi amfani da APP mai jurewa acid |
| Rashin guduro kwarara | Wuce kima da lodi | Rage aluminum hydroxide zuwa 3% ko ƙara diluent |
| Farashin UL94 | Rashin isassun haɗin gwiwar PN | Ƙara MCA (zuwa 6%) ko aluminum hypophosphite (zuwa 15%) |
V. Madadin Tsarin (Idan Ana Bukata)
Sauya wani ɓangare na APP tare da abubuwan DOPO (misali, DOPO-HQ):
- 8% DOPO-HQ + 10% aluminum hypophosphite rage jimlar lodi (~ 18%) yayin da yake ci gaba da aiki.
Wannan haɗin gwiwar yana daidaita jinkirin harshen wuta, amincin muhalli, da aiki mai zafi. Ana ba da shawarar ƙananan gwaje-gwaje (500g) kafin samar da cikakken sikelin.
More info., pls contact lucy@taifeng-fr.com
Lokacin aikawa: Yuli-25-2025
