Njira Yadongosolo Yochepetsera Kachulukidwe ka Utsi Wakanema wa TPU

Njira Yadongosolo Yochepetsera Kachulukidwe ka Utsi Wamakanema a TPU (Pakali pano: 280; Chandamale: <200)
(Mapangidwe apano: Aluminium hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Kusanthula Kwambiri Nkhani

1. Zochepa Zopanga Panopa:

• Aluminium hypophosphite: Imaletsa kufalikira kwa lawi koma imakhala ndi utsi wochepa.
• MCA: Chothandizira kuti malawi agasi azitha kuyaka pambuyo pake (chimene chakwaniritsa kale) koma sichikwanira kuchepetsa utsi woyaka.
• Zinc borate: Imalimbikitsa kupanga char koma imachepetsedwa (2 phr), kulephera kupanga chiwongolero chokwanira kuti chitseke utsi.

1. Chofunika Kwambiri:

• Chepetsani kuchuluka kwa utsi woyaka moto kudzerakuchepetsa utsi wowonjezerakapenanjira zochepetsera gasi.

II. Kukhathamiritsa Njira

1. Sinthani Magawo Omwe Adalipo

• Aluminium hypophosphite: Onjezani ku18-20 mphindi(amawonjezera kuchedwa kwamoto kwa condensed-phase; monitor kusinthasintha).
• MCA: Onjezani ku6-8 mphindi(imathandizira gawo la gasi; kuchuluka kwachulukidwe kumatha kusokoneza kukonza).
• Zinc borate: Onjezani ku3-4 mphindi(amalimbitsa mapangidwe amoto).

Kukonzekera kwachitsanzo:

• Aluminiyamu hypophosphite: 18 phr
• MCA: 7 ph
• Zinc borate: 4 phr

2. Yambitsani Mankhwala Oletsa Utsi Apamwamba

• Molybdenum mankhwala(mwachitsanzo, zinc molybdate kapena ammonium molybdate):
• Udindo: Imawongolera mapangidwe a char, kupanga chotchinga chotchinga kuti chitseke utsi.
• Mlingo: 2-3 phr (amagwirizanitsa ndi zinki borate).
• Nanoclay (montmorillonite):
• Udindo: Chotchinga chakuthupi kuti muchepetse kutulutsa mpweya woyaka.
• Mlingo: 3–5 phr (kusinthidwa pamwamba kuti kubalalitsidwe).
• Zotsalira zamoto zopangidwa ndi silicone:
• Udindo: Imawongolera mtundu wa char komanso kuletsa utsi.
• Mlingo: 1-2 phr (amapewa kutaya kuwonekera).

3. Kukhathamiritsa kwa Synergistic System

• Zinc borate: Onjezani 1-2 phr kuti mugwirizane ndi aluminium hypophosphite ndi zinki borate.
• Ammonium polyphosphate (APP): Onjezani 1-2 phr kuti muwongolere gawo la gasi ndi MCA.

III. Analimbikitsa Mapangidwe Athunthu

Zotsatira Zomwe Zikuyembekezeka:

• Kuchuluka kwa utsi woyaka: ≤200 (kudzera char + gas-phase synergy).
• Afterglow utsi kachulukidwe: Sungani ≤200 (MCA + zinki borate).

IV. Zolemba Zofunika Kwambiri

1. Processing Kutentha: Sungani kutentha kwa 180-200 ° C kuti mupewe kuwonongeka koyambitsa moto msanga.
2. Kubalalitsidwa:

• Gwiritsani ntchito kusakaniza kothamanga kwambiri (≥2000 rpm) pogawa yunifolomu ya nanoclay/molybdate.
• Onjezani 0.5–1 phr silane coupling agent (mwachitsanzo, KH550) kuti muwongolere kugwirizana kwa zodzaza.

1. Kupanga Mafilimu: Poponya, chepetsani kuziziritsa kuti muthandizire kupanga mawonekedwe a char.

V. Njira Zotsimikizira

1. Kuyesa kwa Labu: Konzani zitsanzo pamapangidwe ovomerezeka; UL94 kuyesa kuwotcha koyima komanso kuyesa kachulukidwe ka utsi (ASTM E662).
2. Magwiridwe Antchito: Yesani kulimba kwamphamvu, kutalika, ndi kuwonekera.
3. Kukhathamiritsa Kwambiri: Ngati kuchuluka kwa utsi kumakhalabe kwakukulu, sinthani mowonjezereka molybdate kapena nanoclay (± 1 phr).

VI. Mtengo & Kutheka

• Mtengo Impact: Zinc molybdate (~ ¥ 50 / kg) + nanoclay (~ ¥ 30 / kg) onjezerani mtengo wonse ndi <15% pa ≤10% kutsitsa.
• Industrial Scalability: Yogwirizana ndi muyezo TPU processing; palibe zida zapadera zofunika.

VII. Mapeto

Wolembakuwonjezera zinki borate + kuwonjezera molybdate + nanoclay, kachitidwe katatu (kupanga char + dilution ya gasi + chotchinga chakuthupi) amatha kukwaniritsa utsi wofuna kuyaka (≤200). Ikani patsogolo kuyesa kwamolybdate + nanoclaykuphatikizika, kenako kulinganiza bwino kwa ndalama zogwirira ntchito.