Mhinduro Yakarongeka yekuderedza Kuwanda kweUtsi hweTPU Firimu

Mhinduro Yakarongeka yekuderedza Kuwanda kweUtsi hweTPU Film (Parizvino: 280; Chinangwa: <200)
(Mushonga uripo iye zvino: Aluminum hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Kuongorora Nyaya Yemusoro

1. Zvipingamupinyi zveKugadzirwa Kwazvino:

• Aruminiyamu hypophosphate: Inonyanya kudzikamisa kupararira kwemurazvo asi ine hutsi hushoma.
• MCA: Murazvo unodzivirira gasi unoshanda pakupisa kwemoto (watosvika pachinangwa) asi hauna kukwana pakuderedza utsi hwemoto.
• Zinc borate: Inokurudzira kuumbwa kwechar asi haina dose yakakwana (2 chete pa phr), ichikundikana kugadzira char layer yakakora zvakakwana kuti ibvise utsi.

1. Chinodiwa Chikuru:

• Deredza huwandu hweutsi hunopisa kuburikidza nekushandisakudzvinyirirwa kweutsi kwakawedzerwa simbakananzira dzekuderedza gasi-chikamu.

II. Maitiro Ekugadzirisa

1. Gadzirisa Zviyero Zviripo Zvekugadzira

• Aruminiyamu hypophosphate: Wedzera kusvika18–20 maprendi(inowedzera kunonoka kwemurazvo wechikamu chakavharidzirwa; kuchinjika kwemonitor).
• MCA: Wedzera kusvika6–8 map.(inowedzera gas-phase action; kuwanda kwazvo kunogona kukanganisa kugadzirwa).
• Zinc borate: Wedzera kusvika3–4 maprendi(inosimbisa kuumbwa kwechar).

Muenzaniso weFomu Yakagadziridzwa:

• Aluminum hypophosphate: 18 phr
• MCA: 7 phr
• Zinc borate: 4 phr

2. Shandisa Mishonga Inoderedza Utsi Inoshanda Zvikuru

• Molybdenum makemikari(semuenzaniso, zinc molybdate kana ammonium molybdate):
• Basa: Inokurudzira kuumbwa kwechar, zvichiita kuti pave nechidziviriro chakakora chekudzivirira utsi.
• Chipimo chemushonga: 2–3 phr (inoshanda pamwe chete ne zinc borate).
• Nanoclay (montmorillonite):
• Basa: Chidziviriro chemuviri chekuderedza kuburitswa kwegasi rinobvira moto.
• Chipimo chemushonga: 3–5 phr (yakagadziriswa pamusoro kuti ipararire).
• Zvinodzivisa moto zvakagadzirwa nesilicone:
• Basa: Inovandudza kunaka kwecha uye inodzivisa utsi.
• Chipimo chemushonga: 1–2 phr (inodzivisa kurasikirwa nekujeka).

3. Kugadzirisa Sisitimu Yekubatana

• Zinc borateWedzera 1–2 phr kuti ishande pamwe chete nealuminium hypophosphite uye zinc borate.
• Ammonium polyphosphate (APP): Wedzera 1–2 phr kuti uwedzere kushanda kwegasi neMCA.

III. Kuumbwa Kwakazara Kunokurudzirwa

Mhedzisiro Inotarisirwa:

• Kuwanda kweutsi hunobvira: ≤200 (kuburikidza nechar + gas-phase synergy).
• Kuwanda kweutsi hwemushure mechiedza: Chengetedza ≤200 (MCA + zinc borate).

IV. Zvinyorwa zveKugadzirisa Maitiro Akakosha

1. Kugadzira Tembiricha: Chengetedza 180–200°C kudzivirira kuora kwemoto nguva isati yakwana.
2. Kupararira:

• Shandisa kusanganisa nekukurumidza (≥2000 rpm) kuti ugovane nanoclay/molybdate zvakaenzana.
• Wedzera 0.5–1 phr silane coupling agent (semuenzaniso, KH550) kuti uvandudze kushanda kwe filler.

1. Kuumbwa kwemafirimu: Pakukanda, deredza mwero wekutonhodza kuti zvive nyore kugadzira jira rechar.

V. Matanho Ekusimbisa

1. Kuedzwa kweLabhoritari: Gadzirirai mienzaniso zvichienderana nefomura inokurudzirwa; itai bvunzo dzeUL94 dzekupisa vertical uye smoke density (ASTM E662).
2. Kuenzanisa Kwekushanda: Edza simba rekusimba, kureba, uye kujeka.
3. Kugadzirisa Kudzokorora: Kana huwandu hweutsi hukaramba hwakakwira, gadzirisa zvishoma nezvishoma molybdate kana nanoclay (±1 phr).

VI. Mutengo & Zvinogoneka

• Mhedzisiro yeMutengo: Zinc molybdate (~¥50/kg) + nanoclay (~¥30/kg) inowedzera mutengo wese ne <15% pa ≤10% yekurodha.
• Kukwanisa Kukura Kwemaindasitiri: Inoenderana neTPU processing yakajairwa; hapana michina yakasarudzika inodiwa.

VII. Mhedziso

Nakuwedzera zinc borate + kuwedzera molybdate + nanoclay, sisitimu ine zviito zvitatu (kuumbwa kwechar + kuderedzwa kwegasi + chipingamupinyi chemuviri) inogona kusvika pakuwanda kweutsi hwemoto (≤200). Isa pamberi kuyedzamolybdate + nanoclaymusanganiswa, wobva wagadzirisa zviyero zvekuenzanisa mutengo nekushanda zvakanaka.