Yankho Labwino Kwambiri Lochepetsa Kuchuluka kwa Utsi wa Mafilimu a TPU

Njira Yabwino Yochepetsera Utsi wa Filimu ya TPU (Pakali pano: 280; Cholinga: <200)
(Kapangidwe kake ka pano: Aluminium hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Kusanthula Nkhani Yaikulu

1. Zofooka za Kupanga Kwatsopano:

• Hypophosphite ya aluminiyamu: Choyamba chimaletsa kufalikira kwa moto koma chimakhala ndi utsi wochepa.
• MCA: Choletsa moto chomwe chimagwira ntchito pochotsa mpweya (chomwe chikukwaniritsa kale cholinga) koma chosakwanira kuchepetsa utsi woyaka.
• Zinc borate: Imalimbikitsa kupanga char koma siili ndi mlingo wokwanira (maola awiri okha), kulephera kupanga char yolimba mokwanira kuti ichepetse utsi.

1. Chofunika Kwambiri:

• Chepetsani kuchuluka kwa utsi woyaka kudzera mukuletsa utsi kowonjezerekakapenanjira zochepetsera mpweya.

II. Njira Zokonzera Bwino

1. Sinthani Ma Ratio Omwe Alipo

• Hypophosphite ya aluminiyamu: Onjezani kuMagawo 18–20(kumawonjezera kuchedwa kwa moto wa gawo lochepetsedwa; kusinthasintha kwa chowunikira).
• MCA: Onjezani kuMagawo 6–8(zimawonjezera mphamvu ya gasi; kuchuluka kwambiri kumatha kuwononga ntchito yokonza).
• Zinc borate: Onjezani kuMagawo 3–4(imalimbitsa mapangidwe a char).

Chitsanzo Chosinthidwa:

• Aluminium hypophosphite: 18 phr
• MCA: 7 phr
• Zinc borate: 4 phr

2. Yambitsani Mankhwala Oletsa Utsi Ogwira Ntchito Mwamphamvu

• Mankhwala a Molybdenum(mwachitsanzo, zinc molybdate kapena ammonium molybdate):
• Udindo: Zimathandizira kupanga ma char, zomwe zimapangitsa kuti utsi ukhale wovuta kutseka.
• Mlingo: 2–3 phr (imagwirizana ndi zinc borate).
• Nanoclay (montmorillonite):
• Udindo: Chotchinga chakuthupi chochepetsera kutulutsa mpweya woyaka.
• Mlingo: 3–5 phr (yosinthidwa pamwamba kuti ifalikire).
• Zoletsa moto zochokera ku silicone:
• Udindo: Zimathandiza kuti mpweya ukhale wabwino komanso kuti utsi usamatuluke.
• Mlingo: 1–2 phr (imapewa kutayika kwa kuwonekera).

3. Kukonza Machitidwe Ogwirizana

• Zinc borateOnjezani 1–2 phr kuti mugwirizane ndi aluminium hypophosphite ndi zinc borate.
• Ammonium polyphosphate (APP)Onjezani 1–2 phr kuti muwonjezere mphamvu ya gas-phase ndi MCA.

III. Kapangidwe Koyenera Konse

Zotsatira Zoyembekezeredwa:

• Kuchuluka kwa utsi woyaka: ≤200 (kudzera mu char + gas-phase synergy).
• Kuchuluka kwa utsi wowala pambuyo pa kuwala: Sungani ≤200 (MCA + zinc borate).

IV. Zolemba Zofunikira Zokhudza Kukonza Njira

1. Kutentha Kwambiri: Sungani kutentha kwa 180–200°C kuti mupewe kuwonongeka kwa zinthu zoletsa moto msanga.
2. Kubalalika:

• Gwiritsani ntchito kusakaniza kwachangu (≥2000 rpm) kuti mugawitse nanoclay/molybdate yofanana.
• Onjezani cholumikizira cha silane cha 0.5–1 phr (monga, KH550) kuti muwongolere kuyanjana kwa filler.

1. Kupanga Mafilimu: Poponya, chepetsani kuzizira kuti muthandize kupanga zigawo za char.

V. Njira Zotsimikizira

1. Kuyesa kwa Labu: Konzani zitsanzo malinga ndi njira yovomerezeka; chitani mayeso a UL94 vertical burn and smoke density tests (ASTM E662).
2. Kulinganiza Magwiridwe Antchito: Yesani mphamvu yokoka, kutalika, ndi kuwonekera bwino.
3. Kukonzanso KobwerezabwerezaNgati utsi umakhalabe wochuluka, sinthani pang'onopang'ono molybdate kapena nanoclay (± 1 phr).

VI. Mtengo & Kuthekera

• Zotsatira za Mtengo: Zinc molybdate (~¥50/kg) + nanoclay (~¥30/kg) imawonjezera mtengo wonse ndi <15% pa ≤10% yodzaza.
• Kukula kwa Mafakitale: Imagwirizana ndi njira yokhazikika ya TPU; palibe zida zapadera zomwe zimafunikira.

VII. Mapeto

Ndikuwonjezera zinc borate + kuwonjezera molybdate + nanoclay, dongosolo la zochita zitatu (kapangidwe ka char + kuchepetsedwa kwa mpweya + chotchinga chakuthupi) akhoza kukwaniritsa kuchuluka kwa utsi woyaka womwe mukufuna (≤200). Yesani kuyesamolybdate + nanoclaykuphatikiza, kenako sinthani bwino ma ratios kuti muwonetse bwino momwe ndalama zimagwirira ntchito.