Tharollo e Hlophisitsoeng bakeng sa ho Fokotsa Botenya ba Mosi oa Filimi ea TPU

Tharollo e Hlophisitsoeng bakeng sa ho Fokotsa Botenya ba Mosi oa Filimi ea TPU (Hajoale: 280; Sepheo: <200)
(Moetso oa hona joale: Aluminium hypophosphite 15 phr, MCA 5 phr, Zinc borate 2 phr)

I. Tlhahlobo ea Bothata ba Motheo

1. Meeli ea Tlhahiso ea Hona Joale:

• Hypophosphate ea aluminium: Haholo-holo e thibela ho ata ha malakabe empa e na le ho thibela mosi hanyane.
• MCA: Sethibela-mollo sa kgase se sebetsang hantle bakeng sa kganya e tlang (e seng e ntse e kopana le sepheo) empa ha se a lekana bakeng sa ho fokotsa mosi o tukang.
• Borate ea zinki: E khothalletsa ho thehoa ha char empa e fokolitsoe ka tekanyo e fokolang (lihora tse 2 feela), e hlōleha ho etsa lera le teteaneng la char ho thibela mosi.

1. Tlhokahalo ea Bohlokoa:

• Fokotsa bongata ba mosi o tukang ka ho sebelisakhatello ea mosi e ntlafalitsoeng ke charkapamekhoa ea ho qhala khase ka mohato oa khase.

II. Maano a Ntlafatso

1. Fetola Likarolelano tsa Sebopeho se Ntseng se le Teng

• Hypophosphate ea aluminiumEketsa hoLipuo tse 18–20(e ntlafatsa ho lieha ha lelakabe la mokhahlelo o kobehileng; ho tenyetseha ha leihlo).
• MCAEketsa hoLipuo tse 6–8(e eketsa ts'ebetso ea karolo ea khase; bongata bo feteletseng bo ka senya ts'ebetso).
• Borate ea zinkiEketsa hoLipuo tse 3–4(e matlafatsa sebopeho sa char).

Mohlala oa Sebopeho se Fetotsoeng:

• Hypophosphate ea aluminium: 18 phr
• MCA: Li-phr tse 7
• Borate ea Zinki: 4 phr

2. Kenya Dithibela-mosi tse Bokgoni bo Hodimo

• Metsoako ea Molybdenum(mohlala, zinki molybdate kapa ammonium molybdate):
• Karolo: E susumetsa ho thehwa ha char, e etsa mokoallo o teteaneng ho thibela mosi.
• Tekanyo: 2–3 phr (e sebetsa 'moho le zinki borate).
• Nanoclay (montmorillonite):
• Karolo: Thibelo ea 'mele ho fokotsa ho lokolloa ha khase e tukang.
• Tekanyo: 3–5 phr (e fetotsoeng bokaholimo bakeng sa ho hasana).
• Lintho tse thibelang malakabe tse thehiloeng ho silicone:
• Karolo: E ntlafatsa boleng ba char le ho thibela mosi.
• Tekanyo: 1–2 phr (e qoba tahlehelo ea ponaletso).

3. Ntlafatso ea Sistimi e Kopanetsoeng

• Borate ea zinki: Kenya 1–2 phr ho sebelisana le aluminium hypophosphite le zinc borate.
• Ammonium polyphosphate (APP): Kenya 1–2 phr ho ntlafatsa ts'ebetso ea karolo ea khase ka MCA.

III. Tlhahiso e Felletseng e Khothaletsoang

Liphetho tse Lebeletsoeng:

• Bongata ba mosi o tukang: ≤200 (ka char + tšebelisano-'moho ea mokhahlelo oa khase).
• Bongata ba mosi o tsoang ka morao ho khanya: Boloka ≤200 (MCA + zinki borate).

IV. Lintlha tsa Bohlokoa tsa Ntlafatso ea Ts'ebetso

1. Mocheso oa ho Sebetsa: Boloka mocheso oa 180–200°C ho thibela ho bola ha ntho e thibelang malakabe pele ho nako.
2. Ho hasana:

• Sebelisa ho kopanya ka lebelo le phahameng (≥2000 rpm) bakeng sa kabo e tšoanang ea nanoclay/molybdate.
• Kenya sesebelisoa sa ho kopanya sa silane sa 0.5–1 phr (mohlala, KH550) ho ntlafatsa ho lumellana ha se tlatsang.

1. Tlhahiso ea Lifilimi: Bakeng sa ho lahla, fokotsa sekhahla sa ho pholisa ho nolofatsa ho thehwa ha lera la char.

V. Mehato ea Netefatso

1. Teko ea laboratori: Lokisa disampole ho ya ka tlhahiso e kgothalletswang; etsa diteko tsa ho tjhesa ka ho otloloha le ho teteana ha mosi tsa UL94 (ASTM E662).
2. Tekanyo ea Tshebetso: Leka matla a ho tsikinyeha, ho lelefala, le ho bonaletsa.
3. Ntlafatso ea ho IphetolaHaeba mosi o ntse o le motenya, fetola molybdate kapa nanoclay hanyane ka hanyane (±1 phr).

VI. Litšenyehelo le ho khoneha

• Tšusumetso ea Litšenyehelo: Zinc molybdate (~¥50/kg) + nanoclay (~¥30/kg) e eketsa litšenyehelo tsohle ka <15% ho ≤10% ea ho kenya.
• Ho Kgolofala ha Diindasteri: E lumellana le ts'ebetso e tloaelehileng ea TPU; ha ho hlokahale lisebelisoa tse khethehileng.

VII. Qetello

Kaho eketsa borate ea zinki + ho eketsa molybdate + nanoclay, sistimi ea liketso tse tharo (ho thehoa ha char + ho hlapolloa ha khase + mokoallo oa 'mele) e ka fihlella sepheo sa ho chesa mosi o lebeletsoeng (≤200). Beha pele ho lekamolybdate + nanoclaymotswako, ebe o lokisa dikarolelano bakeng sa tekano ya ditjeo le tshebetso.