Fosifate ya polyol

Fosifate polyol ni ubwoko bwimiti ifite formulaire ya po4hr1r2.

amakuru y'ingenzi

Izina ry'Ubushinwa: fosifate ya polyol

Fosifate ya polyglycerol

Inzira ya molekulari: po4hr1r2

Kugaragara: ibara ritagira ibara cyangwa umuhondo rifite umucyo

Alias: fosifate nyinshi

N1, N2 na N3 birashobora kuba 0 cyangwa 1, kimwe.

Imiterere ya fiziki ya chimiki yiki gice niyi ikurikira:

Fosifate ya polyol irashobora kugabanywamo ubwoko bubiri: ubwoko A ni polyoxyethylene ether fosifate, ni paste yumukara; ubwoko B ni azote irimo polyol fosifate, imvange ya polyhydroxy, ikaba ari umukara wijimye wijimye. Ubushobozi bwa acide kama fosifori isanzwe mumazi buragabanuka hamwe no kwiyongera kwa R alkyl carbone atom. Monoester na dieters byombi bya fosifate ni acide kandi irashobora kubora ion ya hydrogen mumuti wamazi; muburyo bwa alkaline, uku kubora kwihuta. Nubwo itinda kurusha polyphosifate, biroroshye hydrolyze mubushyuhe bwinshi no mubihe bya alkaline. Igipimo cya hydrolysis nikubye inshuro 10 muburyo butabogamye. Hydrolysis imaze kubaho, kwangirika no kubuza igipimo bizabura. Fosifate yakozwe irashobora guhuza hamwe na calcium ion mumazi kugirango ikore igipimo cya calcium fosifate hamwe nubushobozi buke.

Ububiko bugizwe no guhindura iki gika

Mubisanzwe, glycerol ihindurwamo okiside na fosifate hanyuma igashyirwa hamwe na aside ya fosifoni. Imyuka ya okiside ya glycerol niyi ikurikira: kuvanga glycerol na soda ya pisitoro ya caustic, gushyushya kugeza kuri 150 ℃ kurinda gaze ya inert, hanyuma ukongeramo okiside ya Ethylene kuri okiside ya Ethylene ukurikije igipimo cy’imisemburo ya okiside ya Ethylene na glycerol ya 2: 1, no gukomeza ubushyuhe bwa 150-160 ℃. Iyo okiside ya Ethylene yongewemo kandi ikabikwa mugihe runaka (nka 1,2 h), okisijeni ya ogisijeni ya glycerol irashobora gufatwa nkaho yarangiye. Muri ubu buryo, kongeramo soda ya caustic bingana na 0.1% yumubare wuzuye wa glycerol na okiside ya Ethylene. Fosifone esterifike ya polyoxyethylene ether na glycerine yakorewe muri reakteri ku kigereranyo cya 4.5: 1, ishyuha kugeza kuri 50 and, hanyuma fosifore pentoxide yongerwaho buhoro buhoro muri reaktor ukurikije igipimo rusange cya fosifore pentoxide / polyoxyethylene ether glycerol. 1: 1.1 ~ 1.2, kandi ubushyuhe ntibwari hejuru ya 125 ~ 135 ℃. Nyuma ya fosifore pentoxide yongeweho, ibikoresho biri muri reaktor biba mucyo nyuma yo gufata igihe runaka, bivuze ko inzira ya esterification yarangiye. Ongeramo amazi kugirango ukonje fosifate kugirango ushobore guhagarara neza. Inzira yubukorikori nuburyo bukurikira:

Iyo r-0h + H3PO4 yashyutswe kugirango ikore r-h2po4 + H20

(R-0) 2po2h + H2O yateguwe no gushyushya 2R OH + H3PO4

Ro-pcl4 + 3H2O ikora kugirango ikore r-h2po4 + 4hcl

Ethylene glycol, Ethylene glycol monoethyl ether, polyoxyethylene ether, glycerol na triethanolamine yashyutswe kugeza 75-85 ℃ munsi yo kuvanga no kuvanga, hanyuma pentoxide ya fosifore yongerwaho buhoro. Nyuma ya fosifore pentoxide yongeyeho, ubushyuhe bwa reaction bwagenzuwe kuri 130-140 ℃ kuri 1-2 h. amazi yongewemo kugirango akonje ibicuruzwa bivangwa na fosifori acide kugirango bigere kubiteganijwe. Ikigereranyo cyibisubizo byari triethanolamine, kandi ivangwa ryiza ryavanze ni 60:40 ~ 40:60 (igipimo rusange). Ikigereranyo cyiza cya Ethylene glycol, Ethylene glycol monoether na polyoxyethylene ether glycerol ni 1: 4: 4. Ethylene glycol monoethyl ether irashobora kongerwamo inshuro ebyiri, imwe yongeweho hamwe na Ethylene glycol na polyoxyethylene ether glycerine mbere yo kubyitwaramo, indi ikongerwaho mugihe cyo gufata 140 ℃.

Gusenya uhindure ibipimo ngenderwaho kuri iki gika

Reba ibisabwa bya tekiniki byerekanwe mu nganda zisanzwe hg2228-91

umushinga

indangagaciro

Ibirimo bikomeye% ≥ mirongo itanu

Ibirimo byose bya fosifore (ubarwa na PO4)% ≥ mirongo itatu

Kubarwa nibirimo PO4 ≥ cumi na gatanu

PH (igisubizo cyamazi 1%) 2.0-3.0

Uburyo bwo gutahura uburyo bwo guhindura iki gice

Ikizamini cyakozwe hakurikijwe uburyo bwerekanwe muri hg2228-91.

Urwego rwibicuruzwa birimo fosifone kama (harimo mono organic na bisphosifone) na fosifore pentoxide (ikora aside irike ya fosifori namazi), ishobora kwandikwa muburyo bukoreshwa muburyo bwo kutabogama.