Zvidziviriro zvemurazvo zvine phosphorus rudzi rwezvidziviriro zvemurazvo zvinoshanda zvakanyanya, zvinovimbika, uye zvinoshandiswa zvakanyanya zvakawana kutariswa kukuru kubva kuvaongorori. Kubudirira kukuru kwakaitwa mukugadzirwa uye kushandiswa kwazvo.
1. Kushandiswa kwezvinodzivirira moto zvine phosphorus muPP
Hunhu hwepolypropylene (PP) hune basa guru mukushandiswa kwayo mumaindasitiri. Zvisinei, oxygen index yayo shoma (LOI) inongosvika 17.5% chete, zvichiita kuti ibatike zvakanyanya nekukurumidza kupisa. Kukosha kwezvinhu zvePP mumaindasitiri kunokonzerwa nekunonoka kwemurazvo uye hunhu hwazvo. Mumakore achangopfuura, microencapsulation uye kugadziriswa kwenzvimbo kwave kuri mafambiro makuru muzvinhu zvePP zvinodzivirira moto.
Muenzaniso 1: Ammonium polyphosphate (APP) yakagadziriswa ne silane coupling agent (KH-550) uye silicone resin ethanol solution yakaiswa pazvinhu zvePP. Apo huwandu hweAPP yakagadziriswa hwakasvika 22%, LOI yezvinhu yakawedzera kusvika 30.5%, nepo hunhu hwayo hwemakanika hwakasanganawo nezvinodiwa uye hwakapfuura zvinhu zvePP zvakadzoserwa mumoto neAPP isina kugadziriswa.
Muenzaniso wechipiri: APP yakavharirwa mugoko rine melamine (MEL), hydroxyl silicone oil, uye formaldehyde resin kuburikidza ne in-situ polymerization. Ma microcapsules akazosanganiswa ne pentaerythritol ndokuiswa pazvinhu zvePP kuti zvisave nemoto. Zvinhu izvi zvakaratidza kuti hazvina simba remoto, ne LOI ye32% uye vertical burning test rating ye UL94 V-0. Kunyangwe mushure mekunyudzwa mumvura inopisa, composite yakaramba iine simba remoto uye ine hunhu hwakanaka hwemakanika.
Muenzaniso 3: APP yakagadziriswa nekuiputira nealuminium hydroxide (ATH), uye APP yakagadziriswa yakabatanidzwa nedipentaerythritol pachiyero che2.5:1 kuti ishandiswe muzvinhu zvePP. Kana huwandu hwese hwehuremu hwemurazvo hwaive 25%, LOI yakasvika 31.8%, chiyero chehuremu hwemurazvo chakasvika V-0, uye chiyero chekubuda kwekupisa chakaderera zvakanyanya.
2. Kushandiswa kwezvinodzivirira moto zvine phosphorus muPS
Polystyrene (PS) inobvira moto zvakanyanya uye inoramba ichibvira mushure mekunge chinhu chinobatidza chabviswa. Kuti igadzirise matambudziko akadai sekubuda kwekupisa kwakanyanya uye kupararira kwemurazvo nekukurumidza, zvinhu zvinodzivirira moto zvisina halogen zvine phosphorus zvine basa rakakosha mukudzora moto kwePS. Nzira dzinoshandiswa zvakanyanya dzePS dzinosanganisira kuputira, kuisa mumiviri, kukwesha, uye kudzora moto padanho repolymerization.
Muenzaniso 1: Chinonamira chine phosphorus chinodzivirira moto chePS chinogona kuwedzerwa chakagadzirwa nenzira yesol-gel uchishandisa N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane uye phosphoric acid. Chinonamira chePS chinodzivirira moto chakagadzirwa uchishandisa nzira yekuputira. Kana tembiricha yadarika 700°C, furo rePS rakagadziriswa nechinamira rakaita char layer inodarika 49%.
Vaongorori pasi rose vakaisa mafomu ane phosphorus-containing flame-retardant structures muma vinyl kana acrylic compounds, ayo anobva abatanidzwa ne styrene kuti agadzire ma copolymer matsva ane phosphorus-containing styrene. Zvidzidzo zvinoratidza kuti zvichienzaniswa ne PS yakachena, ma copolymer ane phosphorus-containing styrene copolymers anoratidza LOI ne char residue zvakavandudzwa zvakanyanya, zvichiratidza kugadzikana kwakanyanya kwekupisa uye kunonoka kwemurazvo.
Muenzaniso 2: Kamuchina ke vinyl-terminated oligomeric phosphate hybrid macromonomer (VOPP) kakaiswa pachain huru yePS kuburikidza ne graft copolymerization. Kamuchina ke graft kakaratidza kunonoka kwemurazvo kuburikidza ne solid-phase mechanism. Sezvo huwandu hweVOPP hwakawedzera, LOI yakawedzera, peak heat release rate uye total heat release yakaderera, uye melt dripping yakanyangarika, zvichiratidza mhedzisiro yakakura yekudzora murazvo.
Pamusoro pezvo, zvinhu zvinodzivirira moto zvisina phosphorus zvinogona kubatanidzwa nemakemikari nezvinodzivirira moto zvine graphite kana nitrogen kuti zvishandiswe muzvinodzivirira moto zvine phosphorus. Nzira dzekuputira kana kukwesha dzinogona kushandiswawo kuisa zvinhu zvinodzivirira moto zvine phosphorus kuPS, zvichivandudza zvakanyanya LOI nechar residue yezvinhu.
3. Kushandiswa kwezvinodzivirira moto zvine phosphorus muPA
Polyamide (PA) inobvira moto zvakanyanya uye inoburitsa utsi hwakawanda panguva yekutsva. Sezvo PA ichishandiswa zvakanyanya muzvikamu zvemagetsi nemidziyo, njodzi yemoto yakanyanya kuipa. Nekuda kwechimiro cheamide chiri muketani yayo huru, PA inogona kudzorwa nemoto uchishandisa nzira dzakasiyana-siyana, uye zvinodzivirira moto zvinowedzerwa uye zvinogadzirisa moto zvinobudirira zvikuru. Pakati pePA dzinodzivirira moto, alkyl phosphinate salts ndiyo inonyanya kushandiswa.
Muenzaniso 1: Aluminum isobutylphosphinate (A-MBPa) yakawedzerwa kuPA6 matrix kugadzira chinhu chakabatanidzwa. Munguva yekuyedzwa kwekunonoka kwemurazvo, A-MBPa yakaora PA6 isati yasvika, zvichiita kuti pave nechar layer yakakora uye yakagadzikana yaidzivirira PA6. Chinhu chacho chakawana LOI ye26.4% uye chiyero chekunonoka kwemurazvo cheV-0.
Muenzaniso 2: Munguva yekugadzirwa kwehexamethylenediamine neadipic acid, 3 wt% yeflame retardant bis(2-carboxyethyl)methylphosphine oxide (CEMPO) yakawedzerwa kuti igadzire flame-retardant PA66. Zvidzidzo zvakaratidza kuti flame-retardant PA66 yakaratidza flame-retardancy yepamusoro kana tichienzanisa nePA66 yakajairika, ine LOI yakakwira zvakanyanya. Kuongororwa kwechar layer kwakaratidza kuti dense char pamusoro peflame-retardant PA66 yaive nemaburi ehukuru hwakasiyana, izvo zvakabatsira kuparadzanisa kupisa negasi, zvichiratidza kushanda kwakanaka kweflame-retardant.
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Nguva yekutumira: Nyamavhuvhu-15-2025
