Ojiji nke ihe ndị na-egbochi ire ọkụ nke dabeere na phosphorus na PP

Ihe mgbochi ọkụ nke sitere na phosphorus bụ ụdị ihe mgbochi ọkụ dị elu, nke a pụrụ ịtụkwasị obi, na nke a na-ejikarị eme ihe nke dọtara mmasị dị ukwuu n'aka ndị nchọpụta. E meela ihe ndị dị ịrịba ama n'otú e si hazie ha na otú e si eji ha eme ihe.

1. Itinye ihe ndị na-egbochi ire ọkụ nke sitere na phosphorus n'ime PP

Àgwà anụ ahụ nke polypropylene (PP) na-arụ ọrụ dị oke mkpa na ngwa ụlọ ọrụ ya. Agbanyeghị, obere oxygen index ya (LOI) dị naanị ihe dị ka 17.5%, na-eme ka ọ na-ere ọkụ nke ukwuu na ọsọ ọkụ ngwa ngwa. Uru nke ihe PP na ngwa ụlọ ọrụ na-emetụta ma ire ọkụ ha na ihe onwunwe anụ ahụ. N'afọ ndị na-adịbeghị anya, obere encapsulation na mgbanwe elu aghọwo ihe bụ isi na ihe PP na-egbochi ire ọkụ.

Ihe atụ nke 1: E tinyere Ammonium polyphosphate (APP) nke ejiri ihe njikọ silane (KH-550) na silicone resin ethanol solution gbanwee na ihe PP. Mgbe oke nke APP agbanwere ruru 22%, LOI nke ihe ahụ mụbara ruo 30.5%, ebe ihe ndị dị na ya mezukwara ihe achọrọ ma mee ka ihe PP ghara ire ọkụ nke ọma site na APP na-agbanweghi agbanwe.

Ihe atụ nke abụọ: E tinyere APP n'ime shei nke melamine (MEL), mmanụ silicone hydroxyl, na resin formaldehyde site na polymerization in-situ. E wee jikọta obere kapsụl ndị ahụ na pentaerythritol ma tinye ha na ihe PP maka igbochi ire ọkụ. Ihe ahụ gosipụtara ezigbo mgbochi ire ọkụ, yana LOI nke 32% na ọkwa nnwale ọkụ kwụ ọtọ nke UL94 V-0. Ọbụna mgbe e mechara ọgwụgwọ mmiri ọkụ, ihe mejupụtara ahụ nọgidere na-enwe ezigbo mgbochi ire ọkụ na njirimara igwe.

Ihe atụ nke atọ: E tinyere aluminum hydroxide (ATH) n'ime ya ka ọ gbanweere APP, e wee jikọta APP a gbanwere agbanwe na dipentaerythritol na oke oke nke 2.5:1 maka iji ya na ihe PP. Mgbe oke oke oke nke ihe na-egbochi ọkụ bụ 25%, LOI ruru 31.8%, ọkwa nke na-egbochi ọkụ ruru V-0, ọnụego nke na-ewepụta okpomọkụ kachasị elu belatara nke ukwuu.

2. Itinye ihe ndị na-egbochi ire ọkụ nke dabere na phosphorus n'ọrụ na PS

Polystyrene (PS) na-ere ọkụ nke ukwuu ma na-aga n'ihu na-ere ọkụ mgbe ewepụsịrị isi iyi ọkụ ahụ. Iji dozie nsogbu dịka mwepụta okpomọkụ dị elu na mgbasa ọkụ ngwa ngwa, ihe mgbochi ọkụ dabere na halogen na-enweghị phosphorus na-arụ ọrụ dị oke mkpa na mgbochi ọkụ PS. Usoro ndị a na-ejikarị eme ihe maka PS gụnyere mkpuchi, itinye ihe n'ime ya, ịsacha ya, na igbochi ọkụ polymerization-ogbo.

Ihe atụ nke 1: E jiri usoro sol-gel mee ihe na-eme ka ihe na-egbu ọkụ nke nwere phosphorus dị ka ihe na-egbu ọkụ. E ji usoro mkpuchi mee ihe na-eme ka ihe na-egbu ọkụ dị ka ihe na-egbu ọkụ. Mgbe okpomọkụ gafere 700°C, ụfụfụ PS e ji ihe na-egbu ọkụ mee ka ọ bụrụ ihe na-eme ka ọ ghara ịdị irè karịa 49%.

Ndị nchọpụta n'ụwa niile ewebatala ihe owuwu ndị nwere phosphorus nke na-egbochi ire ọkụ n'ime vinyl ma ọ bụ acrylic compounds, nke a na-ejikọta ya na styrene iji mepụta styrene copolymers ọhụrụ nwere phosphorus. Nnyocha na-egosi na ma e jiri ya tụnyere PS dị ọcha, styrene copolymers nke nwere phosphorus na-egosipụta LOI na char residue ka mma nke ukwuu, na-egosi nkwụsi ike okpomọkụ dị elu na mgbochi ire ọkụ.

Ihe atụ nke abụọ: E tinyere macromonomer oligomeric phosphate hybrid (VOPP) nke vinyl kwụsịrị na isi usoro PS site na graft copolymerization. Graft copolymer gosipụtara retardancy ire ọkụ site na usoro siri ike. Ka ọdịnaya VOPP na-abawanye, LOI na-ebili, ọnụego ntọhapụ okpomọkụ kachasị elu na ntọhapụ okpomọkụ zuru oke belatara, mmiri na-agbaze agbaze kwụsịrị, na-egosi mmetụta dị ukwuu nke na-egbochi ire ọkụ.

Ọzọkwa, enwere ike iji kemịkalụ jikọta ihe ndị na-egbochi ọkụ sitere na phosphorus na-adịghị n'ime ihe ndị na-egbochi ọkụ sitere na graphite ma ọ bụ nitrogen maka iji na-egbochi ọkụ PS. Enwere ike iji usoro mkpuchi ma ọ bụ ahịhịa mee ihe iji tinye ihe ndị na-egbochi ọkụ sitere na phosphorus na PS, na-eme ka LOI na ihe fọdụrụ nke ihe ahụ ka mma nke ukwuu.

3. Itinye ihe ndị na-egbochi ire ọkụ nke dabere na phosphorus n'ọrụ na PA

Polyamide (PA) na-ere ọkụ nke ukwuu ma na-emepụta nnukwu anwụrụ ọkụ n'oge ọkụ. Ebe ọ bụ na a na-eji PA eme ihe nke ukwuu na ihe ndị e ji eletrọniki na akụrụngwa, ihe egwu nke ọkụ dị oke njọ. N'ihi usoro amide dị na isi ya, enwere ike iji ụzọ dị iche iche belata ọkụ PA, yana ihe mgbakwunye na ihe ndị na-egbochi ọkụ na-arụ ọrụ nke ọma. N'etiti PA ndị na-egbochi ọkụ, nnu alkyl phosphinate bụ ndị a na-ejikarị eme ihe.

Ihe atụ nke 1: E tinyere Aluminium isobutylphosphinate (A-MBPa) na matrix PA6 iji kwadebe ihe mejupụtara ya. N'oge nnwale mgbochi ire ọkụ, A-MBPa gbawara tupu PA6, wee mepụta oyi akwa char siri ike ma kwụsie ike nke na-echebe PA6. Ihe ahụ nwetara LOI nke 26.4% na ọkwa mgbochi ire ọkụ nke V-0.

Ihe atụ nke abụọ: N'oge a na-emepụta polima nke hexamethylenediamine na adipic acid, etinyere 3 wt% nke bis(2-carboxyethyl)methylphosphine oxide (CEMPO) iji mepụta PA66 nke na-egbochi ire ọkụ. Ọmụmụ ihe gosiri na PA66 nke na-egbochi ire ọkụ gosipụtara mbelata ire ọkụ dị elu ma e jiri ya tụnyere PA66 nkịtị, yana LOI dị elu nke ukwuu. Nyocha nke oyi akwa chaja ahụ gosiri na elu chaja dị oke nke PA66 nke na-egbochi ire ọkụ nwere pores nke nha dị iche iche, nke nyeere aka kewapụ okpomọkụ na nnyefe gas, na-egosi arụmọrụ a ma ama nke na-egbochi ire ọkụ.

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