Sebopeho sa Litšupiso bakeng sa V-0 Flame-Retardant PVC Thermoplastic Plastics
Ho fihlella tekanyo ea ho thibela malakabe ea V-0 (ho ea ka maemo a UL-94) lipolastiking tsa thermoplastic tsa PVC, aluminium hypophosphite le boric acid ke lintho tse peli tse thibelang malakabe tse sebelisoang haholo. Maemo a tsona a ho eketsa a hloka ho ntlafatsoa ho latela mokhoa o ikhethileng oa ho etsa lintho, maemo a ts'ebetso le litlhoko tsa ts'ebetso. Ka tlase ke likhothaletso le mefuta e meng ea litšupiso:
1. Boemo ba ho Eketsa ba Aluminium Hypophosphite
Aluminium hypophosphite ke sesebelisoa se sebetsang hantle sa ho thibela malakabe se thehiloeng ho phosphorus se loketseng thepa ea PVC. E thibela ho tuka ka ho etsa lera le sireletsang la phosphate le ho lokolla khase ea phosphoric acid.
- Boemo ba ho eketsa bo kgothaletswang: Lihora tse 15–25(likarolo ka likarolo tse lekholo tsa resin)
- Bakeng sa PVC e tloaelehileng, eketsa ho potolohaLi-phr tse 20Hangata aluminium hypophosphite e fumana tekanyo ea ho lieha ha mollo ea V-0.
- Bakeng sa ho lieha ho hoholo ha mollo, tekanyo e ka eketsoa, empa tshusumetso hodima thepa ya mechini e lokela ho nahanelwa.
- Mehato ya tlhokomelo:
- Hypophosphite e feteletseng ea aluminium e ka fokotsa ts'ebetso ea ts'ebetso (mohlala, ho se khone ho phalla hantle).
- Ho kgothaletswa ho kopanya le dithibela-mafu tse ding (mohlala, boric acid, aluminium hydroxide) bakeng sa ditlamorao tsa ho sebelisana.
2. Boemo ba ho Eketsa Boric Acid
Asiti ea boric ke sesebelisoa se thibelang malakabe se theko e tlase se sebetsang haholo-holo ka ho bola ha endothermic le ho thehoa ha lera le sireletsang le kang khalase.
- Boemo ba ho eketsa bo kgothaletswang: Lipuo tse 5–15
- Hangata asiti ea boric e sebelisoa e le ntho e thibelang malakabe a bobeli, 'me bongata bo feteletseng bo ka senya litšobotsi tsa mechine le tsa ts'ebetso.
- Ka PVC, ho eketsa ho potolohaLi-phr tse 10ea boric acid e ka sebelisana le aluminium hypophosphite ho eketsa ho lieha ha mollo.
- Mehato ya tlhokomelo:
- Asiti ea boric e na le hygroscopic, kahoo polokelo le ts'ebetso li lokela ho qoba ho monngoa ke mongobo.
- Tšusumetso ea eona ea ho thibela malakabe e lekanyelitsoe ha e sebelisoa e le 'ngoe; hangata e kopantsoe le lintho tse ling tse thibelang malakabe (mohlala, aluminium hypophosphite, aluminium hydroxide).
3. Sebopeho se Kopanetsoeng sa Aluminium Hypophosphite le Boric Acid
Ho fihlela tekanyo ea V-0, aluminium hypophosphite le boric acid li ka kopanngoa bakeng sa litlamorao tsa tšebelisano. Ka tlase ke mokhoa oa litšupiso:
- Hypophosphate ea aluminium: Lipuo tse 15–20
- Asiti ea boric: Lipuo tse 5–10
- Lisebelisoa tse ling:
- Setlolo sa polasetiki (mohlala, DOP): Ha ho hlokahala (e fetotsoe ho latela litlhoko tsa ho thatafala ha PVC)
- Sehatsetsi:Li-phr tse 2–5(mohlala, matswai a loto, di-stabilizer tsa calcium-zinc)
- Setlolo:0.5–1 phr(mohlala, stearic acid)
Mohlala oa ho qapa:
- Resin ea PVC:Li-phr tse 100
- Hypophosphate ea aluminium:Lipuo tse 18
- Borate ea zinki:Li-phr tse 8
- Setlolo sa polasetiki (DOP):Li-phr tse 40
- Sehatsetsi:Li-phr tse 3
- Setlolo:Li-phr tse 0.8
4. Teko le Ntlafatso
Litšebelisong tse sebetsang, mehato e latelang ea khothaletsoa bakeng sa liteko le ntlafatso:
- Sebopeho sa mofofisi:Lokisetsa teko e nyane e ipapisitseng le mefuta ya ditshupiso.
- Teko ea UL-94:Etsa liteko tsa ho chesa ka ho otloloha ho lekola tekanyo ea ho lieha ha lelakabe.
- Teko ea ts'ebetso:Lekola litšobotsi tsa mechini (mohlala, matla a ho thapolla, matla a tšusumetso) le ts'ebetso ea ts'ebetso (mohlala, ho phalla hantle, botsitso ba mocheso).
- Ntlafatso:Fetola maemo a ho eketsa a aluminium hypophosphite le boric acid kapa o kenye tse ding tse thibelang malakabe (mohlala, aluminium hydroxide, antimony trioxide) ho ntlafatsa tshebetso.
5. Lintlha tsa bohlokoa tsa ho nahana
- Mocheso oa ho sebetsa:Lithempereichara tsa ho bola ha aluminium hypophosphite le boric acid li phahame haholo; etsa bonnete ba hore lithempereichara tsa ts'ebetso ha li fete meeli ena ho qoba ho senyeha.
- Ho hasana:Netefatsa hore lintho tse thibelang malakabe li hasane ka ho lekana ka har'a PVC ho thibela mathata a mahloriso sebakeng seo.
- Tšusumetso ea tikoloho:Ka bobeli aluminium hypophosphite le boric acid ke lintho tse thibelang malakabe tse sireletsang tikoloho, empa ho lumellana le lintho tse ling tse eketsang ho lokela ho netefatsoa.
6. Qetello
Ho fihlella tekanyo ea ho lieha ha malakabe ea V-0 ho polasetiki ea thermoplastic ea PVC, maemo a khothaletsoang a ho eketsa ke15–25 phr bakeng sa hypophosphite ea aluminiumle5–15 phr bakeng sa asiti ea boricTšebeliso e kopanetsoeng ea lintho tsena tse thibelang malakabe e ka ntlafatsa ts'ebetso. Ha e le hantle, ntlafatso e ipapisitseng le mekhoa e itseng le litlhoko tsa ts'ebetso ea bohlokoa, 'me tlhahlobo ea UL-94 e lokela ho etsoa ho netefatsa tekanyo ea ho thibela malakabe.
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Nako ea poso: Phuptjane-23-2025
