Isisombululo esiCwangcisiweyo sokunciphisa uxinano lwefilimu ye-TPU

Isisombululo Esicwangcisiweyo Sokunciphisa Uxinano Lwefilimu Ye-TPU Yentuthu (Ngoku: 280; Ithagethi: <200)
(Indlela ekhoyo ngoku: I-aluminium hypophosphite 15 phr, i-MCA 5 phr, i-Zinc borate 2 phr)

I. Uhlalutyo lweMiba ePhambili

1. Imida yoLungiso lwangoku:

• I-hypophosphite ye-aluminiyam: Ngokuyintloko ithintela ukusasazeka komlilo kodwa inomsi omncinci othintela ukusasazeka kwawo.
• I-MCA: Isithinteli selangatye esisebenza ngegesi esisebenza emva kokukhanya (sele sidibana nenjongo) kodwa asanelanga ekunciphiseni umsi otshayo.
• I-borate yeZinc: Ikhuthaza ukwakheka kwe-char kodwa ayinikwanga idosi ingako (ii-phr ezimbini kuphela), ayiphumeleli ukwenza umaleko we-char oxineneyo ukuze kuthintelwe umsi.

1. Imfuneko ephambili:

• Nciphisa uxinano lomsi otshayo ngokusebenzisaucinezelo lomsi oluphuculweyookanyeiindlela zokuxuba igesi ngesigaba segesi.

II. Amaqhinga okuphucula

1. Lungisa iiRatio zeFomulation ezikhoyo

• I-hypophosphite ye-aluminiyam: Yandisa ukuya kwi18–20 amagama(iphucula ukulibaziseka komlilo kwisigaba esixineneyo; ijonga ukuguquguquka).
• I-MCA: Yandisa ukuya kwi6–8 amagama(inyusa ukusebenza kwesigaba segesi; ubungakanani obugqithisileyo bunokonakalisa ukucutshungulwa).
• I-borate yeZinc: Yandisa ukuya kwi3–4 amagama(iqinisa ukwakheka kwe-char).

Umzekelo woLungiso oluLungisiweyo:

• I-aluminiyam hypophosphite: 18 phr
• I-MCA: 7 izifundo
• I-borate yeZinc: 4 phr

2. Yazisa izixhobo zokucinezela umsi ezisebenza kakuhle kakhulu

• Iikhompawundi zeMolybdenum(umzekelo, i-zinc molybdate okanye i-ammonium molybdate):
• Indima: Ivuselela ukwakheka kwe-char, idala umqobo oxineneyo wokuthintela umsi.
• Idosi: 2–3 phr (isebenzisana ne-zinc borate).
• I-Nanoclay (montmorillonite):
• Indima: Umqobo obonakalayo wokunciphisa ukukhutshwa kwegesi evuthayo.
• Idosi: 3–5 phr (umphezulu uguqulwe ukuze kusasazeke).
• Izinto ezithintela ilangatye ezisekelwe kwi-silicone:
• Indima: Iphucula umgangatho wetsha kunye nokunciphisa umsi.
• Idosi: 1–2 phr (ithintela ukulahleka kokucaca).

3. Ukwenziwa ngcono kweNkqubo eSebenzayo

• I-borate yeZinc: Yongeza i-1–2 phr ukuze ihambelane ne-aluminium hypophosphite kunye ne-zinc borate.
• I-Ammonium polyphosphate (APP): Yongeza i-1–2 phr ukuze uphucule ukusebenza kwe-gas-phase nge-MCA.

III. Ifomula Ebanzi Ecetyiswayo

Iziphumo Ezilindelekileyo:

• Ubuninzi bomsi otshayo: ≤200 (ngokusebenzisa i-char + i-gas-phase synergy).
• Ubuninzi bomsi emva kokukhanya: Gcina ≤200 (MCA + zinc borate).

IV. Amanqaku okuphucula iinkqubo ezibalulekileyo

1. Ubushushu bokucubungula: Gcina iqondo lobushushu eliyi-180–200°C ukuthintela ukubola okungafunekiyo komlilo kwangethuba.
2. Ukusasazeka:

• Sebenzisa ukuxuba ngesantya esiphezulu (≥2000 rpm) ukuze usasazeke ngokulinganayo nge-nanoclay/molybdate.
• Yongeza i-agent yokudibanisa i-silane ye-0.5–1 phr (umz., KH550) ukuphucula ukuhambelana kwezalisa.

1. Ukwenziwa kweeFilimu: Ukuze kufakwe i-cast, nciphisa izinga lokuphola ukuze kube lula ukwakheka komaleko we-char.

V. Amanyathelo okuqinisekisa

1. Uvavanyo lweLebhu: Lungisa iisampulu ngokwendlela ecetyiswayo; yenza uvavanyo lokutsha ngokuthe nkqo lwe-UL94 kunye nobunzima bomsi (ASTM E662).
2. Ibhalansi yokusebenza: Vavanya amandla okutsalwa, ukunwebeka, kunye nokungafihli nto.
3. Ukuphucula Ukuphindaphinda: Ukuba uxinano lomsi luhlala luphezulu, lungisa i-molybdate okanye i-nanoclay kancinci kancinci (±1 phr).

VI. Ixabiso kunye nokunokwenzeka

• Impembelelo yeendleko: I-Zinc molybdate (~¥50/kg) + i-nanoclay (~¥30/kg) yonyusa iindleko zizonke nge-<15% xa ulayisha i-≤10%.
• Ukukhula Kwemizi-mveliso: Iyahambelana nenkqubo eqhelekileyo ye-TPU; akukho zixhobo zikhethekileyo ezifunekayo.

VII. Isiphelo

Nguukwandisa i-zinc borate + ukongeza i-molybdate + i-nanoclay, inkqubo yezenzo ezintathu (ukwakheka kwe-char + ukuxutywa kwegesi + umqobo womzimba) inokufikelela kubuninzi bomsi otshayo ekujoliswe kuwo (≤200). Beka phambili ukuvavanyai-molybdate + i-nanoclayindibaniselwano, emva koko lungisa iireyithingi ukuze kubekho ibhalansi yeendleko-ukusebenza.