Gukoresha Fosifore ishingiye kuri Flame Retardants muri PP

Fosifore ishingiye kuri flame retardants ni ubwoko bwimikorere ihanitse, yizewe, kandi ikoreshwa cyane mumashanyarazi yakunzwe cyane nabashakashatsi. Ibyagezweho bidasanzwe byakozwe muri synthesis no kubishyira mubikorwa.

1. Gukoresha Fosifore ishingiye kuri Flame Retardants muri PP

Ibintu bifatika bya polypropilene (PP) bigira uruhare runini mubikorwa byinganda. Nyamara, igipimo cyacyo cya ogisijeni ntarengwa (LOI) kiri hafi 17.5% gusa, bigatuma cyaka cyane nigipimo cyaka vuba. Agaciro k'ibikoresho bya PP mubikorwa byinganda bigengwa nuburyo bubi bwa flame hamwe nibintu bifatika. Mu myaka yashize, microencapsulation no guhindura isura byahindutse inzira yibanze mubikoresho bya PP-flame-retardant.

Urugero rwa 1: Ammonium polyphosphate (APP) yahinduwe hamwe na silane ihuza (KH-550) hanyuma igisubizo cya silicone resin etanol cyakoreshejwe mubikoresho bya PP. Iyo igice kinini cya APP cyahinduwe kigeze kuri 22%, LOI yibikoresho yiyongereye kugera kuri 30.5%, mugihe imiterere yubukanishi nayo yujuje ibisabwa kandi iruta ibikoresho bya PP flame-retard hamwe na APP idahinduwe.

Urugero rwa 2: APP yashyizwe mubikonoshwa bigizwe na melamine (MEL), amavuta ya hydroxyl silicone, hamwe na resine ya fordehide ikoresheje polymerisiyasi. Microcapsules yahise ihuzwa na pentaerythritol hanyuma ikoreshwa mubikoresho bya PP kugirango ibuze umuriro. Ibikoresho byagaragaje ububobere buke bwa flame, hamwe na LOI ya 32% hamwe nigipimo cyo gutwika gihagaritse cya UL94 V-0. Ndetse na nyuma yo kuvura amazi ashyushye, ikomatanyirizo ryagumanye umuriro mwiza hamwe nubukanishi.

Urugero rwa 3: APP yahinduwe uyisiga hydroxide ya aluminium (ATH), naho APP yahinduwe ihujwe na dipentaerythritol ku kigereranyo cya 2.5: 1 kugirango ikoreshwe mubikoresho bya PP. Iyo igice kinini cyumubyigano wa flame cyari 25%, LOI yageze kuri 31.8%, igipimo cyo kutagira umuriro cyageze kuri V-0, kandi igipimo cyo kurekura ubushyuhe cyaragabanutse cyane.

2. Gukoresha Fosifore ishingiye kuri Flame Retardants muri PS

Polystirene (PS) irashya cyane kandi ikomeza gutwika nyuma yo gukuraho inkomoko. Kugira ngo ukemure ibibazo nko kurekura ubushyuhe bwinshi hamwe n’umuriro wihuse ukwirakwira, halogen idafite fosifore ishingiye kuri flame retardants igira uruhare runini mu kudindiza umuriro wa PS. Uburyo busanzwe bwa flame-retardant kuri PS burimo gutwikira, gutera akabariro, gukaraba, hamwe na polymerisation-stade flame retardancy.

Urugero rwa 1: Fosifore irimo flame-retardant yometse kuri PS yaguka yashizwemo hakoreshejwe uburyo bwa sol-gel ikoresheje N-β- (aminoethyl) -γ-aminopropyltrimethoxysilane na aside fosifori. Flame-retardant PS ifuro yateguwe hakoreshejwe uburyo bwo gutwikira. Iyo ubushyuhe bwarenze 700 ° C, impumu ya PS ivurwa hamwe na afashe yakoze char char irenga 49%.

Abashakashatsi ku isi hose binjije fosifore irimo flame-retardant ibice bya vinyl cyangwa acrylic, hanyuma bigahuzwa na styrene kugirango bibyare fosifore irimo styrene copolymers. Ubushakashatsi bwerekana ko ugereranije na PS isukuye, fosifore irimo styrene copolymers yerekana neza LOI hamwe n’ibisigisigi bya char, byerekana ko ubushyuhe buhebuje bw’umuriro hamwe no kutagira umuriro.

Urugero rwa 2: Vinyl-yarangijwe na oligomeric fosifate hybrid macromonomer (VOPP) yomekwa kumurongo munini wa PS hakoreshejwe kopolymerisation. Igishushanyo cya copolymer cyerekanaga umuriro udakoresheje uburyo bukomeye. Mugihe ibirimo VOPP byiyongereye, LOI yazamutse, igipimo cyo hejuru yubushyuhe bwo hejuru nubushuhe bwuzuye bwaragabanutse, kandi gutonyanga gushonga byarazimanganye, byerekana ingaruka zikomeye za flame-retardant.

Byongeye kandi, inorganiki ya fosifore ishingiye kuri flame retardants irashobora guhuzwa na chimique na grafite cyangwa azote ishingiye kuri flame retardants kugirango ikoreshwe muri PS flame retardancy. Uburyo bwo gutwikira cyangwa gukaraba birashobora kandi gukoreshwa mugukoresha fosifore ishingiye kuri flame retardants kuri PS, bikazamura cyane ibikoresho bya LOI nibisigara bya char.

3. Gukoresha Fosifore ishingiye kuri Flame Retardants muri PA

Polyamide (PA) irashya cyane kandi itanga umwotsi mwinshi mugihe cyo gutwikwa. Kubera ko PA ikoreshwa cyane mubice bya elegitoroniki nibikoresho, ibyago byo guhura n’umuriro birakabije. Bitewe nuburyo bwa amide mumurongo wingenzi wacyo, PA irashobora gukongoka ikoresheje uburyo butandukanye, hamwe ninyongera ya flame retardants igaragara neza. Muri flame-retardant PAs, imyunyu ya alkyl fosifine niyo ikoreshwa cyane.

Urugero rwa 1: Aluminium isobutylphosphine (A-MBPa) yongewe kuri matrike ya PA6 kugirango itegure ibikoresho. Mugihe cyo gupima flame retardancy, A-MBPa yabora mbere ya PA6, ikora char yuzuye kandi ihamye yarinze PA6. Ibikoresho byageze kuri LOI ya 26.4% hamwe na flame yo kudindiza umuriro wa V-0.

Urugero rwa 2: Mugihe cya polymerisation ya hexamethylenediamine na acide adipic, 3 wt% ya flame retardant bis (2-carboxyethyl) methylphosphine oxyde (CEMPO) yongewemo kugirango itange PA66. Ubushakashatsi bwerekanye ko flame-retardant PA66 yerekanye ububobere buke bwa flame ugereranije na PA66 isanzwe, hamwe na LOI iri hejuru cyane. Isesengura ry’urwego rwa char ryerekanye ko ubuso bwuzuye bwa flame-retardant PA66 yarimo imyenge yubunini butandukanye, ifasha gutandukanya ubushyuhe na gaze, byerekana imikorere igaragara ya flame-retardant.

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