Ibhodi ye-polystyrene enwetshiwe (i-XPS) iyinto esetshenziswa kabanzi ukwakha ukufakwa kwe-insulation, futhi izakhiwo zayo ezibuyisela amalangabi zibalulekile ekuphepheni kwesakhiwo. Idizayini yokwakhiwa kwezinqamuleli zomlilo ze-XPS idinga ukucatshangelwa okuphelele kokusebenza kahle kwe-flame retardant, ukusebenza kokucubungula, izindleko, nezimfuneko zemvelo. Ngezansi kunomklamo oningiliziwe kanye nencazelo yokubunjwa kwe-XPS ye-flame retardant, ehlanganisa kokubili izixazululo ze-halogenated ne-halogen-free flame retardant.
1. Izimiso Zokuklama Zokwakhiwa Kwe-XPS Flame Retardant
Ingxenye eyinhloko ye-XPS yi-polystyrene (PS), futhi ukuguqulwa kwayo kwe-flame retardant kutholakala ngokuyinhloko ngokungeza ama-flame retardants. Idizayini yokubunjwa kufanele ihambisane nemigomo elandelayo:
- Ukubambezeleka komlilo okuphezulu: Hlangana nezindinganiso zokunqanda ilangabi lezinto zokwakha (isb, GB 8624-2012).
- Icubungula ukusebenza: I-flame retardant akufanele ithinte kakhulu inqubo yokugwaza nokubumba ye-XPS.
- Ubungane bemvelo: Izinqamuleli zamalangabi ezingenalo i-halogen kufanele zibekwe eqhulwini ukuze zihambisane nemithetho yemvelo.
- Ukulawula izindleko: Nciphisa izindleko ngenkathi uhlangabezana nezimfuneko zokusebenza.
2. Ukwakhiwa kwe-XPS ene-Halogenated Flame Retardant
Ama-halogenated flame retardants (isb., brominated) aphazamisa ukusabela kweketango lomlilo ngokukhulula ama-halogen radicals, anikeza ukusebenza kahle kokunciphisa ilangabi kodwa abeka izingozi zemvelo nempilo.
(1) Ukwakhiwa Kokwakhiwa:
- I-Polystyrene (PS): 100phr (isisekelo se-resin)
- I-brominated flame retardant: 10–20phr (isb, i-hexabromocyclododecane (HBCD) noma i-brominated polystyrene)
- I-Antimony trioxide (i-synergist): 3–5phr (ithuthukisa umphumela we-flame retardant)
- I-ejenti ekhipha amagwebu: 5–10phr (isb, i-carbon dioxide noma i-butane)
- Ukuhlakazeka: 1–2phr (isb, i-polyethylene wax, ithuthukisa ukuhlakazeka kwento ebuyisela amalangabi)
- Okokugcoba: 1–2phr (isb, i-calcium stearate, ithuthukisa uketshezi lokucubungula)
- I-Antioxidant: 0.5–1 ingxenye (isb, 1010 noma 168, ivimbela ukuwohloka ngesikhathi sokucubungula)
(2) Indlela Yokucubungula:
- I-Premix PS resin, i-flame retardant, i-synergist, i-dispersant, i-lubricant, ne-antioxidant ngokufanayo.
- Engeza i-ejenti enegwebu futhi uncibilike-uhlanganise ku-extruder.
- Lawula izinga lokushisa le-extrusion ku-180-220 ° C ukuze uqinisekise ukugwedla nokubumba okufanele.
(3) Izici:
- Izinzuzo: Ukusebenza kahle kwe-retardant flame, inani eliphansi lesengezo, nezindleko eziphansi.
- Ukubi: Ingase ikhiqize amagesi anobuthi (isb., i-hydrogen bromide) ngesikhathi sokusha, okubangela ukukhathazeka kwemvelo.
3. Ukwakhiwa kwe-XPS Okungabusheki Komlilo kwe-Halogen
Ama-flame retardants angenawo ama-halogen (isb., asekelwe ku-phosphorus, asekelwe ku-nitrogen, noma ama-inorganic hydroxides) athola ukuncipha komlilo ngokumunca ukushisa noma ukwenza izendlalelo zokuvikela, ezinikeza ukusebenza okungcono kwemvelo.
(1) Ukwakhiwa Kokwakhiwa:
- I-Polystyrene (PS): 100phr (isisekelo se-resin)
- I-phosphorus-based flame retardant: 10-15phr (isb.i-ammonium polyphosphate (APP)noma i-phosphorus ebomvu)
- I-nitrogen-based flame retardant: 5–10phr (isb, i-melamine cyanrate (MCA))
- I-Inorganic hydroxide: 20–30phr (isb, i-magnesium hydroxide noma i-aluminium hydroxide)
- I-ejenti ekhipha amagwebu: 5–10phr (isb, i-carbon dioxide noma i-butane)
- Ukuhlakazeka: 1-2phr (isb, i-polyethylene wax, ithuthukisa ukuhlakazeka)
- Okokugcoba: 1–2phr (isb, i-zinc stearate, ithuthukisa uketshezi lokucubungula)
- I-Antioxidant: 0.5–1 ingxenye (isb, 1010 noma 168, ivimbela ukuwohloka ngesikhathi sokucubungula)
(2) Indlela Yokucubungula:
- I-Premix PS resin, i-flame retardant, i-dispersant, i-lubricant, ne-antioxidant ngokufanayo.
- Engeza i-ejenti enegwebu futhi uncibilike-uhlanganise ku-extruder.
- Lawula izinga lokushisa le-extrusion ku-180-210 ° C ukuze uqinisekise ukugwedla nokubumba okufanele.
(3) Izici:
- Izinzuzo: Ihambisana nemvelo, awekho amagesi anobuthi akhiqizwa ngesikhathi sokusha, ahambisana nemithetho yemvelo.
- Ukubi: Ukusebenza okuphansi kwe-flame retardant, amanani aphezulu okungezwayo, kungase kuthinte izakhiwo zemishini nokusebenza kwamagwebu.
4. Okucatshangelwayo Okubalulekile Emklamweni Wokwakha
(1) Ukukhetha Ukubuyiswa Komlilo
- Ama-halogenated flame retardants: Ukusebenza kahle okuphezulu kodwa kubangela ubungozi bemvelo nempilo.
- Ama-flame retardants angenayo i-halogen: Ihambisana kakhulu nemvelo kodwa idinga amanani angeziwe angeziwe.
(2) Ukusetshenziswa kwama-Synergists
- I-Antimony trioxide: Isebenza ngokubambisana nama-halogenated flame retardants ukuze kuthuthukiswe kakhulu ukubambezeleka komlilo.
- I-Phosphorus-nitrogen synergy: Ezinhlelweni ezingenayo i-halogen, i-phosphorus ne-nitrogen-based flame retardants ingasebenza ndawonye ukuze kuthuthukiswe ukusebenza kahle.
(3) Ukuhlakazeka kanye Nokucubungula
- Abahlakaza: Qinisekisa ukusabalalisa okufanayo kwezinqamuli zomlilo ukuze ugweme ukugxila okuphezulu okwenziwe kwasendaweni.
- Izinto zokugcoba: Thuthukisa ukucubungula uketshezi futhi unciphise ukuguga kwemishini.
(4) Ukukhetha Komenzeli Ogwebulile
- Amagwebu angokwenyama: Okufana ne-CO₂ noma i-butane, ihambisana nemvelo nemiphumela emihle yokukhihliza amagwebu.
- Amakhemikhali akhipha amagwebu: Njenge-azodicarbonamide (AC), ukusebenza kahle kwegwebu eliphezulu kodwa kungase kukhiqize amagesi ayingozi.
(5) Ama-Antioxidants
Vimbela ukonakala kwezinto ngesikhathi sokucubungula futhi uthuthukise ukuzinza komkhiqizo.
5. Izicelo Ezijwayelekile
- I-insulation yokwakha: Isetshenziswa ezindongeni, ophahleni, nasezindaweni zokuvikela phansi.
- Cold chain logistics: I-insulation yokugcina ebandayo kanye nezimoto eziqandisiwe.
- Ezinye izinkambu: Izinto zokuhlobisa, izinto zokuvikela umsindo, njll.
6. Izincomo Zokuthuthukisa Ukwakhiwa
(1) Ukuthuthukisa Ukusebenza Kwe-Flame Retardant
- Ama-flame retardants ahlanganisiwe: Okufana ne-halogen-antimony noma i-phosphorus-nitrogen synergies ukuze kuthuthukiswe ukubambezeleka komlilo.
- I-Nano flame retardants: Okufana ne-nano magnesium hydroxide noma i-nano clay, ithuthukisa ukusebenza kahle ngenkathi kunciphisa amanani angeziwe.
(2) Ukuthuthukisa Izakhiwo Zemishini
- Ama-toughening agents: Njenge-POE noma i-EPDM, ithuthukisa ukuqina kwezinto ezibonakalayo kanye nokumelana nomthelela.
- Ukuqinisa ama-fillers: Njengemicu yengilazi, ethuthukisa amandla nokuqina.
(3) Ukwehliswa Kwezindleko
- Lungiselela izilinganiso zokubuyiswa komlilo: Nciphisa ukusetshenziswa ngenkathi uhlangabezana nezidingo zokunqanda ilangabi.
- Khetha izinto ezingabizi kakhulu: Okufana nezisetshenziswa zasekhaya noma ezihlanganisiwe zamalangabi.
7. Izidingo Zemvelo Nezokulawula
- Ama-halogenated flame retardants: Ikhawulelwe yimithethonqubo efana ne-RoHS kanye ne-REACH; sebenzisa ngokuqapha.
- Ama-flame retardants angenayo i-halogen: Ukuthobela imithetho yemvelo futhi umele izitayela zesikhathi esizayo.
Isifinyezo
Idizayini yokwakhiwa kwama-flame retardants ye-XPS kufanele isekelwe kuzimo ezithile zohlelo lokusebenza nezimfuneko zokulawula, ukukhetha phakathi kwama-halogenated noma ama-flame retardants angenawo i-halogen. Ama-halogenated flame retardants anikeza ukusebenza kahle okuphezulu kodwa abangela ukukhathazeka kwemvelo, kuyilapho ama-flame retardants angenayo i-halogen enobungani bemvelo kodwa adinga amanani aphezulu okungeziwe. Ngokulungiselela ukwakheka nezinqubo, ukusebenza okuphezulu, ukonga imvelo, kanye ne-XPS ebamba amalangabi engabizi ingakhiqizwa ukuze kuhlangatshezwane nezidingo zokugqumisa izakhiwo nezinye izinkambu.
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Isikhathi sokuthumela: May-23-2025
