I-Polypropylene (PP) UL94 V0 kunye ne-V2 Iifom ze-Flame Retardant

I-Polypropylene (PP) UL94 V0 kunye ne-V2 Iifom ze-Flame Retardant

I-Polypropylene (PP) i-polymer ye-thermoplastic esetyenziswa ngokubanzi, kodwa ukuvutha kwayo kunciphisa ukusetyenziswa kwayo kwimimandla ethile. Ukuhlangabezana neemfuno ezahlukeneyo ze-flame retardancy (ezifana ne-UL94 V0 kunye ne-V2 amabakala), ii-retardants zomlilo zingabandakanywa ukuphucula ukuxhathisa kwe-PP. Apha ngezantsi kukho inkcazo eneenkcukacha kwiifom ze-PP ze-flame-retardant ze-UL94 V0 kunye ne-V2 amabakala, kubandakanywa ukhetho lwe-flame retardant, uyilo loyilo, ubuchule bokucubungula, kunye nokuvavanya ukusebenza.

1. Intshayelelo kwi-UL94 Flame Retardancy Ratings

I-UL94 ngumgangatho wokutsha ophuhliswe yi-Underwriters Laboratories (UL) ukuvavanya ukuxhathisa idangatye kwizinto zeplastiki. Iireyithingi eziqhelekileyo zokubuyiswa komlilo ziquka:

• V0: Elona bakala liphezulu lokubuyiswa komlilo, lifuna iisampulu ukuba zizicime ngaphakathi kwemizuzwana eli-10 kuvavanyo lokutshisa oluthe nkqo ngaphandle kokutshisa umqhaphu ngokuvuza.
• V2: Ibanga elisezantsi lokubuyiswa komlilo, elivumela iisampulu ukuba zizicime ngaphakathi kwemizuzwana engama-30 kuvavanyo lokutshisa oluthe nkqo ngelixa uvumela ukuthontsiza okunokutshisa umqhaphu.

2. Ukuqulunqwa kwe-PP ye-V0 Flame-Retardant

I-V0 i-PP ye-flame-retardant ifuna ukuxhathisa okugqwesileyo kwedangatye, ngokuqhelekileyo iphunyezwe ngokubandakanya i-high-effective retardants yomlilo kunye nokwandisa ukuqulunqwa.

2.1 UKhetho lweNkangala yomlilo

• IiRetardants zeBrominated Flame: Njenge-decabromodiphenyl ether (DBDPO) kunye ne-tetrabromobisphenol A (TBBPA), enika ukusebenza kakuhle kodwa inokuba yinto engaphantsi kokusingqongileyo.
• I-Phosphorus-Based Flame Retardants: Njenge-ammonium polyphosphate (APP) kunye ne-phosphorus ebomvu, eyona nto i-eco-friendly kwaye isebenzayo.
• Iintumescent Flame Retardants (IFR): Ukuquka umthombo we-asidi, umthombo wekhabhoni, kunye nomthombo wegesi, ukubonelela nge-eco-friendly kunye nokusebenza kakuhle kwedangatye.
• IMagnesium Hydroxide (Mg(OH)₂) okanye iAluminiyam Hydroxide (Al(OH)₃): I-Eco-friendly inorganic flame retardants, kodwa amanqanaba aphezulu okulayisha ayafuneka.

2.2 Uqulunqo oluqhelekileyo

• PP Resin: 100phr (ngobunzima, okufanayo ngezantsi).
• I-Intumescent Flame Retardant (IFR): 20–30phr.
• I-Magnesium Hydroxide: 10–20phr.
• Anti-Ukuvuza Agent: 0.5–1 phr (umz., polytetrafluoroethylene, PTFE).
• Isithambiso: 0.5-1 phr (umzekelo, i-zinc stearate).
• I-Antioxidant: 0.2–0.5 phr.

2.3 IiNdlela zokuSebenza

• Ukuxuba: Ukudibanisa ngokulinganayo i-PP resin, i-retardants yomlilo, kunye nezinye izongezo kwi-mixer enesantya esiphezulu.
• Extrusion & Pelletizing: Sebenzisa i-twin-screw extruder kwi-180-220 ° C ukuvelisa iipellet.
• Isitofu sokubumba: Bumba iipellets zibe yimizekelo yovavanyo usebenzisa umatshini wokubumba inaliti.

2.4 UVavanyo lweNtsebenzo

• UL94 Uvavanyo lokutshisa okuthe nkqo: Iisampulu kufuneka zihlangabezane neemfuno ze-V0 (ukuzicima ngaphakathi kwemizuzwana eyi-10, akukho mqhaphu ovuthayo ovela kwi-drip).
• Uvavanyo lweePropati zoomatshini: Vavanya amandla okuqina, amandla empembelelo, njl., ukuqinisekisa ukusebenza kwezinto eziphathekayo kuyahlangabezana neemfuno zesicelo.

3. I-V2 i-Flame-Retardant ye-PP yokuYilwa koYilo

I-V2 i-flame-retardant PP ineemfuno ezisezantsi zokumelana nomlilo kwaye inokufezekiswa ngokulayishwa okuphakathi kwedangatye.

3.1 UKhetho lweNkangala yomlilo

• IiRetardants zeBrominated Flame: Njenge-DBDPO okanye i-TBBPA, efuna imali encinci kuphela ukuphumeza i-V2.
• I-Phosphorus-Based Flame Retardants: Njenge phosphorus ebomvu okanye iphosphates, enika izisombululo eco-friendly.
• IMagnesium Hydroxide (Mg(OH)₂) okanye iAluminiyam Hydroxide (Al(OH)₃): I-Eco-friendly kodwa ifuna ukulayishwa okuphezulu.

3.2 Uqulunqo oluqhelekileyo

• PP Resin: 100phr.
• I-Brominated Flame Retardant: 5–10phr.
• I-Antimony Trioxide (Sb₂O₃): 2–3phr (njenge-synergist).
• Anti-Ukuvuza Agent: 0.5–1 phr (umz., PTFE).
• Isithambiso: 0.5-1 phr (umzekelo, i-zinc stearate).
• I-Antioxidant: 0.2–0.5 phr.

3.3 IiNdlela zokuSebenza

• Kuyafana ne-V0-grade processing (ukuxuba, i-extrusion, i-injection molding).

3.4 UVavanyo lweNtsebenzo

• UL94 Uvavanyo lokutshisa okuthe nkqo: Iisampuli kufuneka zihlangabezane neemfuno ze-V2 (ukuzicima ngaphakathi kwemizuzwana ye-30, ukuvuza kuvunyelwe).
• Uvavanyo lweePropati zoomatshini: Qinisekisa ukusebenza kwemathiriyeli kuyahlangabezana neemfuno zesicelo.

4. Ukuthelekisa phakathi kweV0 kunye neV2 Formulations

4.1 Ukulayishwa kweFrime Retardant

• I-V0 ifuna ukulayishwa okuphezulu (umz., 20–30phr IFR okanye 10–20phr Mg(OH)₂).
• I-V2 ifuna ukulayishwa okuphantsi (umz., 5–10phr brominated flame retardants).

4.2 Ukusebenza ngokuNgenelwa kwedangatye

• I-V0 ibonelela ngamandla okumelana nomlilo kwiimfuno ezingqongqo.

4.3 IiPropati zoomatshini

• Ukwenziwa kwe-V0 kunokuchaphazela kakhulu iipropati zoomatshini (umzekelo, amandla empembelelo, amandla okuqina) ngenxa yesiqulatho esiphezulu esongezo.
• Ukuqulunqwa kwe-V2 kunempembelelo encinci ekusebenzeni komatshini.

4.4 Impembelelo yokusingqongileyo

• Ukwenziwa kwe-V0 kaninzi kusebenzisa i-eco-friendly flame retardants (umz., IFR, Mg(OH)₂).
• Ukwenziwa kwe-V2 kunokusebenzisa ii-brominated flame retardants, ezingabizi kakhulu kwi-eco-friendly.

5. Iingcebiso zokuPhuculwa koKuqulunqwa

5.1 I-Synergism yeFlame Retardant

• Ukudibanisa ii-retardants ezahlukeneyo zomlilo (umz., IFR + Mg (OH) ₂, i-brominated + Sb₂O₃) inokuphucula ukubuyiswa komlilo kunye nokunciphisa ukulayisha.

5.2 Ukuguqulwa koMphezulu

• Ukuguqula i-inorganic flame retardants (umzekelo, i-Mg (OH) ₂, i-Al (OH) ₃) iphucula ukuhambelana ne-PP, ukuphucula iimpawu zoomatshini.

5.3 UkuPhuculwa kokuPhuculwa

• Ukulawula i-extrusion / i-injection parameters (ubushushu, uxinzelelo, isantya se-screw) siqinisekisa ukusabalalisa okufanayo kunye nokuthintela ukuthotywa.

6. Isiphelo

Uyilo lwe-V0 kunye ne-V2 yokubunjwa kwe-PP ye-flame-retardant ixhomekeke kwiimfuno ezithile zokumelana nomlilo kunye neemeko zesicelo.

• V0 imixubengokuqhelekileyo zisebenzisa iiretardants zomlilo ezisebenza ngamandla (umz., IFR, Mg(OH)₂) kunye ne-synergism ephuculweyo ukuhlangabezana nemigangatho engqongqo.
• Ukwenziwa kweV2inokufikelela kwi-low flame retardancy kunye ne-additives encinci (umz., i-brominated flame retardants).

Kwizicelo ezisebenzayo, izinto ezinjengokumelana nedangatye, ukusebenza koomatshini, impembelelo yokusingqongileyo, kunye neendleko kufuneka zilungelelaniswe ukuze kuphuculwe imiqulu kunye nobuchule bokucubungula.

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