Amfani da Magungunan Rage Wutar Lantarki Masu Tushen Phosphorus a cikin PP

Masu hana harshen wuta da aka yi da phosphorus wani nau'in masu hana harshen wuta ne mai inganci, abin dogaro, kuma ana amfani da su sosai, waɗanda suka jawo hankalin masu bincike sosai. An samu nasarori masu ban mamaki a cikin haɗa su da amfani da su.

1. Amfani da sinadaran hana harshen wuta da ke dauke da sinadarin phosphorus a cikin PP

Sifofin jiki na polypropylene (PP) suna taka muhimmiyar rawa a aikace-aikacen masana'antu. Duk da haka, ƙarancin iskar oxygen (LOI) yana kusa da kashi 17.5% ne kawai, wanda hakan ya sa yake da sauƙin ƙonewa da sauri. Darajar kayan PP a aikace-aikacen masana'antu yana da tasiri ta hanyar jinkirin harshen wuta da halayensu na zahiri. A cikin 'yan shekarun nan, ƙananan enclosure da gyaran saman sun zama manyan abubuwan da ke faruwa a cikin kayan PP masu hana harshen wuta.

Misali na 1: An yi amfani da sinadarin Ammonium polyphosphate (APP) da aka gyara tare da sinadarin silane (KH-550) da kuma sinadarin silicone resin ethanol a kan kayan PP. Lokacin da aka yi amfani da kashi 22% na yawan sinadarin APP da aka gyara, LOI na kayan ya karu zuwa 30.5%, yayin da kayan aikin sa suka cika buƙatu kuma suka yi fice wajen sarrafa kayan PP da ba a gyara ba tare da APP da aka gyara ba.

Misali na 2: An lulluɓe APP a cikin harsashi da aka yi da melamine (MEL), man silicone hydroxyl, da resin formaldehyde ta hanyar polymerization na in-situ. Daga nan aka haɗa ƙananan capsules ɗin da pentaerythritol aka shafa su a kan kayan PP don hana harshen wuta. Kayan ya nuna kyakkyawan juriyar harshen wuta, tare da LOI na 32% da ƙimar gwajin ƙonewa a tsaye na UL94 V-0. Ko da bayan maganin nutsewa cikin ruwan zafi, haɗin ya riƙe kyakkyawan juriyar harshen wuta da halayen injiniya.

Misali na 3: An gyara APP ta hanyar shafa shi da aluminum hydroxide (ATH), kuma an haɗa APP ɗin da aka gyara da dipentaerythritol a rabon taro na 2.5:1 don amfani a cikin kayan PP. Lokacin da jimlar rabon taro na mai hana harshen wuta ya kasance 25%, LOI ya kai 31.8%, ƙimar hana harshen wuta ta kai V-0, kuma ƙimar sakin zafi mafi girma ta ragu sosai.

2. Amfani da Magungunan Rage Wuta Mai Tushen Phosphorus a cikin PS

Polystyrene (PS) yana da matuƙar kama da wuta kuma yana ci gaba da ƙonewa bayan an cire tushen wuta. Don magance matsaloli kamar fitar da zafi mai yawa da kuma yaɗuwar harshen wuta cikin sauri, masu hana harshen wuta marasa halogen waɗanda ke da sinadarin phosphorus suna taka muhimmiyar rawa wajen hana harshen wuta na PS. Hanyoyin da aka saba amfani da su wajen hana harshen wuta don PS sun haɗa da rufewa, dasa shi, gogewa, da kuma hana harshen wuta a matakin polymerization.

Misali na 1: An haɗa wani manne mai hana harshen wuta mai ɗauke da phosphorus don PS mai faɗaɗawa ta hanyar hanyar sol-gel ta amfani da N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane da phosphoric acid. An shirya kumfa mai hana harshen wuta ta amfani da hanyar shafa. Lokacin da zafin ya wuce 700°C, kumfa mai hana harshen wuta da aka yi wa magani da manne ya samar da wani Layer mai kama da char wanda ya wuce 49%.

Masu bincike a duk duniya sun gabatar da tsarin hana harshen wuta mai ɗauke da phosphorus a cikin mahaɗan vinyl ko acrylic, waɗanda daga baya aka haɗa su da styrene don samar da sabbin styrene copolymers masu ɗauke da phosphorus. Bincike ya nuna cewa idan aka kwatanta da PS tsantsa, styrene copolymers masu ɗauke da phosphorus suna nuna ingantaccen LOI da char residue, wanda ke nuna ingantaccen kwanciyar hankali na zafi da kuma jinkirin harshen wuta.

Misali na 2: An dasa wani macromonomer mai kama da oligomeric phosphate hybrid macromonomer (VOPP) a cikin babban sarkar PS ta hanyar haɗakar graft copolymerization. Graft copolymer ya nuna jinkirin harshen wuta ta hanyar tsarin aiki mai ƙarfi. Yayin da abun ciki na VOPP ya ƙaru, LOI ya ƙaru, ƙimar fitar da zafi mafi girma da kuma fitar da zafi gaba ɗaya ya ragu, kuma digowar narkewa ta ɓace, wanda ke nuna tasirin hana harshen wuta sosai.

Bugu da ƙari, ana iya haɗa masu hana harshen wuta waɗanda ba su da sinadarin phosphorus ta hanyar sinadarai da masu hana harshen wuta waɗanda suka dogara da graphite ko nitrogen don amfani da su wajen hana harshen wuta na PS. Hakanan ana iya amfani da hanyoyin shafa ko gogewa don shafa masu hana harshen wuta waɗanda suka dogara da phosphorus a kan PS, wanda hakan ke inganta LOI da ragowar char na kayan sosai.

3. Amfani da Magungunan da ke Rage Wutar Lantarki Daga Phosphorus a Jihar PA

Polyamide (PA) yana da matuƙar kama da wuta kuma yana haifar da hayaƙi mai yawa yayin ƙonewa. Tunda ana amfani da PA sosai a cikin kayan lantarki da kayan aiki, haɗarin haɗarin gobara yana da matuƙar tsanani. Saboda tsarin amide a cikin babban sarkar sa, ana iya rage wutar PA ta amfani da hanyoyi daban-daban, tare da masu hana wuta da masu hana wuta masu ƙarawa suna da tasiri sosai. Daga cikin masu hana wuta masu hana wuta, gishirin alkyl phosphinate sune aka fi amfani da su.

Misali na 1: An ƙara isobutylphosphinate na aluminum (A-MBPa) a cikin matrix na PA6 don shirya kayan haɗin gwiwa. A lokacin gwajin hana harshen wuta, A-MBPa ya ruɓe kafin PA6, yana samar da wani yanki mai kauri da kwanciyar hankali wanda ke kare PA6. Kayan ya sami LOI na 26.4% da ƙimar hana harshen wuta na V-0.

Misali na 2: A lokacin da aka yi amfani da sinadarin hexamethylenediamine da adipic acid wajen polymerization, an ƙara kashi 3% na sinadarin bis(2-carboxyethyl)methylphosphine oxide (CEMPO) don samar da sinadarin PA66 mai hana harshen wuta. Bincike ya nuna cewa sinadarin PA66 mai hana harshen wuta ya nuna ingantaccen tsarin rage harshen wuta idan aka kwatanta da na gargajiya na PA66, tare da LOI mafi girma. Binciken da aka yi kan sinadarin ya nuna cewa babban tsarin PA66 mai hana harshen wuta ya ƙunshi ramuka masu girma dabam-dabam, waɗanda suka taimaka wajen ware zafi da canja wurin iskar gas, wanda hakan ya nuna cewa yana da tasiri wajen hana harshen wuta.

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