Tsarin hana harshen wuta mara halogen don Tsarin Shafi na TPU ta Amfani da Maganin DMF
Ga tsarin shafa TPU da ke amfani da Dimethyl Formamide (DMF) a matsayin mai narkewa, amfani da aluminum hypophosphite (AHP) da zinc borate (ZB) a matsayin masu hana harshen wuta yana buƙatar kimantawa mai tsari. Ga cikakken tsarin bincike da aiwatarwa:
I. Binciken Yiwuwar Amfani da Aluminum Hypophosphite (AHP)
1. Tsarin hana harshen wuta da fa'idodi
- Tsarin aiki:
- Yana narkewa a yanayin zafi mai yawa don samar da phosphoric da metaphosphoric acid, yana haɓaka samuwar char a cikin TPU (rage harshen wuta mai cunkoso).
- Yana sakin PO· radicals don katse halayen sarkar konewa (jinkirin harshen wuta na lokaci-lokaci).
- Fa'idodi:
- Babu halogen, ƙarancin hayaƙi, ƙarancin guba, ya dace da RoHS/REACH.
- Kyakkyawan kwanciyar hankali na zafi (zafin ruɓewa ≈300°C), ya dace da hanyoyin busar da TPU (yawanci ƙasa da 150°C).
2. Kalubalen Aikace-aikace da Mafita
| Kalubale | Mafita |
| Rashin watsawa mara kyau a cikin DMF | Yi amfani da AHP da aka gyara a saman (misali, wakilin haɗin silane KH-550). Tsarin watsawa kafin warwatsewa: AHP mai niƙa ƙwallon ƙwallo tare da DMF da mai watsawa (misali, BYK-110) zuwa girman barbashi <5μm. |
| Babban buƙatar lodawa (20-30%) | Haɗin kai tare da ZB ko melamine cyanurate (MCA) don rage jimillar nauyin zuwa 15-20%. |
| Rage bayyanannen shafi | Yi amfani da AHP mai girman nano (girman barbashi <1μm) ko a haɗa shi da masu hana harshen wuta (misali, phosphates na halitta). |
3. Tsarin da aka ba da shawarar da kuma tsari
- Misali Tsarin:
- Tushen TPU/DMF: 100 phr
- AHP da aka gyara a saman: 20 phr
- Zinc borate (ZB): 5 phr (haɗin gwiwa wajen rage hayaki)
- Na'urar Rarraba Ruwa (BYK-110): 1.5 hr
- Muhimman Abubuwan Tsarin:
- A haɗa AHP da mai watsawa da kuma DMF mai ɗan lokaci a ƙarƙashin babban yankewa (≥3000 rpm, minti 30), sannan a haɗa da TPU slurry.
- Busarwa bayan rufewa: 120-150°C, ƙara lokaci da 10% don tabbatar da cikakken ƙafewar DMF.
II. Binciken Yiwuwar Zinc Borate (ZB)
1. Tsarin hana harshen wuta da fa'idodi
- Tsarin aiki:
- Yana samar da wani Layer na gilashi na B₂O₃ a yanayin zafi mai yawa, yana toshe iskar oxygen da zafi (rage wutar da ke taruwa a lokaci guda).
- Yana fitar da ruwa mai ɗaurewa (~13%), yana narkar da iskar gas mai ƙonewa da kuma sanyaya tsarin.
- Fa'idodi:
- Ƙarfin tasirin haɗin gwiwa tare da AHP ko aluminum trihydroxide (ATH).
- Kyakkyawan rage hayaki, ya dace da amfani da hayaki mai ƙarancin hayaki.
2. Kalubalen Aikace-aikace da Mafita
| Kalubale | Mafita |
| Rashin kwanciyar hankali na watsawa | Yi amfani da ZB mai girman nano (<500nm) da kuma sinadaran jika (misali, TegoDispers 750W). |
| Ƙarancin ingancin hana harshen wuta (ana buƙatar babban lodi) | A yi amfani da shi azaman mai haɗin gwiwa (5-10%) tare da manyan abubuwan hana harshen wuta (misali, AHP ko phosphorus na halitta). |
| Rage sassaucin shafi | Yi ramawa da robobi masu filastik (misali, DOP ko polyester polyols). |
3. Tsarin da aka ba da shawarar da kuma tsari
- Misali Tsarin:
- Tushen TPU/DMF: 100 phr
- Girman Nano ZB: 8 phr
- AHP: 15 h
- Wakilin jika (Tego 750W): 1 phr
- Muhimman Abubuwan Tsarin:
- A watsa ZB a cikin DMF ta hanyar niƙa bead (girman barbashi ≤2μm) kafin a haɗa shi da TPU slurry.
- A tsawaita lokacin bushewa (misali, minti 30) domin gujewa danshi da ya rage da ke shafar jinkirin wuta.
III. Kimantawa Mai Haɗaka Tsakanin Tsarin AHP + ZB
1. Tasirin Hana Harshen Wuta Mai Haɗaka
- Haɗin gwiwa tsakanin Matakin Iskar Gas da Matakin Tarawa:
- AHP yana samar da phosphorus don yin caji, yayin da ZB ke daidaita layin caji kuma yana hana haske bayan an gama aiki.
- Haɗin LOI: 28-30%, UL94 V-0 (1.6mm) za a iya cimmawa.
- Dakatar da Hayaki:
- ZB yana rage fitar da hayaki da kashi >50% (gwajin Calorimeter na Cone).
2. Shawarwari Kan Daidaita Aiki
- Diyya ga Kadarorin Inji:
- Ƙara 2-3% na TPU plasticizer (misali, polycaprolactone polyol) don kiyaye sassauci (tsawo sama da 300%).
- Yi amfani da foda mai ƙarfi (AHP/ZB <2μm) don rage asarar ƙarfin tauri.
- Sarrafa Kwanciyar Hankali a Tsarin Aiki:
- A kiyaye danko mai laushi a 2000-4000 cP (Brookfield RV, spindle 4, 20 rpm) don rufewa iri ɗaya.
IV. Kwatantawa da abubuwan hana harshen wuta na ruwa da ke ɗauke da sinadarin narkewa
| Sigogi | Tsarin AHP + ZB | Liquid Phosphorus-Nitrogen FR (misali Levagard 4090N) |
| Ana lodawa | Kashi 20-30% | Kashi 15-25% |
| Wahalar Watsawa | Yana buƙatar magani kafin a fara (gyaran ƙasa/gyaran saman ƙasa) | Narkewa kai tsaye, babu buƙatar watsawa |
| farashi | Ƙasa (~$3-5/kg) | Babban (~$10-15/kg) |
| Tasirin Muhalli | Babu halogen, ƙarancin guba | Zai iya ƙunsar halogens (wanda ya dogara da samfur) |
| Bayyanar Rufi | Mai haske zuwa mara haske | Mai haske sosai |
V. Matakan Aiwatarwa da Aka Ba da Shawara
- Gwajin Sikelin Dakunan Gwaji:
- Kimanta AHP/ZB daban-daban da kuma a hade (lodawa mai sauƙi: 10%, 15%, 20%).
- A tantance daidaiton warwatsewa (babu narkewar sediment bayan awanni 24), canje-canje a cikin danko, da kuma daidaiton shafi.
- Tabbatar da Sikelin Matukin Jirgin Sama:
- Inganta yanayin bushewa (lokaci/zafin jiki) da kuma gwada jinkirin harshen wuta (UL94, LOI) da kuma halayen injina.
- Kwatanta farashi: Idan AHP+ZB ya rage farashi da >30% idan aka kwatanta da FRs na ruwa, zai yi tasiri a fannin tattalin arziki.
- Shiri na Ƙimar Girma:
- Yi aiki tare da masu samar da kayayyaki don ƙirƙirar manyan batches na AHP/ZB da aka riga aka watsar (bisa ga DMF) don samar da kayayyaki masu sauƙi.
VI. Kammalawa
Tare da hanyoyin watsawa da aka sarrafa, AHP da ZB na iya zama masu hana harshen wuta tasiri ga rufin TPU/DMF, idan aka bayar da:
- Gyaran saman + watsawa mai ƙarfiana amfani da shi don hana taruwar ƙwayoyin cuta.
- AHP (babban likita) + ZB (mai haɗin gwiwa)yana daidaita inganci da farashi.
- Dominbabban bayyananne/sassauciBukatun, FRs na ruwa-phosphorus-nitrogen (misali, Levagard 4090N) sun fi dacewa.
Kamfanin Sichuan Taifeng New Flame Retardant Co., Ltd. (ISO & REACH)
Email: lucy@taifeng-fr.com
Lokacin Saƙo: Mayu-22-2025
