Isimiso
Eminyakeni yamuva nje, kube nokukhathazeka okwandayo mayelana nezingozi zemvelo nezempilo ezibangelwa yizinto ezigcina ilangabi ezisekelwe ku-halogen ezisetshenziswa kumapulasitiki. Ngenxa yalokho, izinto ezigcina ilangabi ezingezona i-halogen ziye zathandwa ngenxa yezici zazo eziphephile nezihlala isikhathi eside.
Izinto ezivimbela ilangabi ezingenayo i-halogen zisebenza ngokuphazamisa izinqubo zokusha ezenzeka lapho ipulasitiki ivezwa emlilweni.
1. Bafeza lokhu ngokuphazamisa ngokomzimba nangamakhemikhali amagesi avuthayo akhishwa ngesikhathi sokushisa. Enye yezindlela ezivamile ukwakheka kwengqimba yekhabhoni evikelayo ebusweni bepulasitiki.
2. Uma kuvezwa ekushiseni, izinto ezivimbela ilangabi ezingenayo i-halogen zithola ukusabela kwamakhemikhali, okukhipha amanzi noma amanye amagesi angashi. Lawa magesi akha umgoqo phakathi kwepulasitiki nelangabi, ngaleyo ndlela kunciphise ukusabalala komlilo.
3. Ama-halogen-free flame retardants ayabola futhi akhe ungqimba oluqinile olufakwe i-carbon, olwaziwa ngokuthi i-char, olusebenza njengesivikelo esibonakalayo, oluvimbela ukukhishwa okuqhubekayo kwamagesi avuthayo.
4. Ngaphezu kwalokho, izinto ezivimbela ilangabi ezingenayo i-halogen zinganciphisa amagesi avuthayo ngokufaka i-ion nokubamba ama-free radical kanye nezingxenye ezivuthayo ezishintshashintshayo. Lokhu kusabela kuphumelela ekuphuleni ukusabela kochungechunge lokusha, kunciphisa kakhulu amandla omlilo.
I-Ammonium polyphosphate iyi-halogen halogen evimbela ilangabi engena-phosphorus-nitrogen. Isebenza kahle kakhulu ekuvimbeleni ilangabi kumapulasitiki futhi ayinabo ubuthi futhi ayivimbeli imvelo.
Ukusetshenziswa Kwepulasitiki
Amapulasitiki agcina ilangabi njenge-FR PP, FR PE, FR PA, FR PET, FR PBT njalo njalo asetshenziswa kakhulu embonini yezimoto ezindaweni zangaphakathi zezimoto, njengamadeshibhodi, amaphaneli eminyango, izingxenye zezihlalo, izindawo zokuvala zikagesi, amathreyi ekhebula, amaphaneli kagesi amelana nomlilo, ama-switchgear, izindawo zokuvala zikagesi, kanye nokuthutha amanzi, amapayipi egesi.
Izinga elijwayelekile lokubuyisa ilangabi (UL94)
I-UL 94 iyindinganiso yokusha kwepulasitiki ekhishwe yi-Underwriters Laboratories (USA). Indinganiso ihlukanisa amapulasitiki ngokwendlela asha ngayo ngezindlela ezahlukene kanye nobukhulu bezingxenye kusukela kokungashisi kakhulu komlilo kuya kokuningi okungashisi kakhulu komlilo ngezigaba eziyisithupha ezahlukene.
| Isilinganiso se-UL 94 | Incazelo Yesilinganiso |
| V-2 | Ukusha kuyama kungakapheli imizuzwana engama-30 engxenyeni okuvumela amaconsi epulasitiki evuthayo eqonde phezulu. |
| V-1 | Ukusha kuyama kungakapheli imizuzwana engama-30 engxenyeni eqonde phezulu okuvumela amaconsi epulasitiki angashi. |
| V-0 | Ukusha kuyama kungakapheli imizuzwana eyi-10 engxenyeni eqonde phezulu okuvumela amaconsi epulasitiki angashi. |
Ukwakhiwa Okubhekiselwe Kuye
| Izinto | Ifomula S1 | Ifomula S2 |
| I-Homopolymerization PP (H110MA) | 77.3% | |
| I-Copolymerization PP (EP300M) | 77.3% | |
| Isithambisi (i-EBS) | 0.2% | 0.2% |
| I-Antioxidant (B215) | 0.3% | 0.3% |
| Ukungaconsi (FA500H) | 0.2% | 0.2% |
| I-TF-241 | 22-24% | 23-25% |
| Izakhiwo zemishini ezisekelwe ku-30% yevolumu yokwengeza ye-TF-241. Ngama-30% TF-241 ukufinyelela i-UL94 V-0 (1.5mm) | ||
| Into | Ifomula S1 | Ifomula S2 |
| Izinga lokuvutha eliqondile | I-V0(1.5mm) | I-UL94 V-0(1.5mm) |
| Nciphisa inkomba ye-oxygen(%) | 30 | 28 |
| Amandla okudonsa (i-MPa) | 28 | 23 |
| Ukwelulwa ngesikhathi sokuphumula (%) | 53 | 102 |
| Izinga lokuvutha ngemva kokubiliswa ngamanzi (70℃, amahora angu-48) | I-V0(3.2mm) | I-V0(3.2mm) |
| I-V0(1.5mm) | I-V0(1.5mm) | |
| I-Flexural modulus (MPa) | 2315 | 1981 |
| I-Meltindex(230℃,2.16KG) | 6.5 | 3.2 |
