Polyol fosfooraska

Phosphate polyol waa nooc ka mid ah walaxda kiimikaad oo leh qaacido molecular oo ah po4hr1r2.

macluumaadka lagama maarmaanka ah

Magaca Shiinaha: polyol phosphate

Polyglycerol fosfooraska

Qaaciddada molecular: po4hr1r2

Muuqaal: dareere hufan oo aan midab lahayn ama huruud ah

Magaca: polyether phosphate

N1, N2 iyo N3 waxay noqon karaan 0 ama 1, siday u kala horreeyaan.

Tilmaamaha physicochemical ee qaybtan waa sida soo socota:

Fosfooraska Polyol waxa loo qaybin karaa laba nooc: nooca A waa polyoxyethylene ether phosphate, kaas oo ah koollada brown; nooca B waa fosfateed polyol ah oo nitrogen ka kooban, isku dar ah xeryahooda polyhydroxy, oo ah dareere viscous ah oo madow. Milicsanaanta aashitada fosfooraska dabiiciga ah ee caadiga ah ee biyaha ku jirta waxay hoos u dhigtaa korodhka tirada atamka kaarboon ee R alkyl. Labada monoesters iyo diesters ee phosphate esters waa aashito waxayna ku dumin karaan ions hydrogen ee xal aqueous; dhexdhexaadinta alkaline, kala-soocidani waa la dedejiyey. Inkasta oo ay ka yar tahay polyphosphate, way sahlan tahay in la nadiifiyo heerkulka sare iyo xaaladaha alkaline. Heerka hydrolysis waa 10 jeer in dhexdhexaad dhexdhexaad ah. Marka hydrolysis dhaco, daxalka iyo xannibaadda miisaanka ayaa lumi doona. Fosfaftada la sameeyay waxay ku dari kartaa ions calcium ee biyaha si ay u sameeyaan miisaan fosfateed kaalshiyam ah oo leh milanka ugu yar.

Isku laabashada halabuurka tafatirka cutubkan

Guud ahaan, glycerol waa oksaydhed by fosfooraska ka dibna lagu nadiifiyaa phosphonic acid. Dareen-celinta oksaydhka ee glycerol waa sida soo socota: isku darka glycerol leh soodhada budada ah, kuleylinta ilaa 150 ℃ iyadoo la ilaalinayo gaaska inert, ka dibna lagu daro ethylene oxide ethylene oxide iyadoo loo eegayo saamiga molar ee ethylene oxide ilaa glycerol ee 2: 1, iyo ilaalinta heerkulka 150-160 ℃. Marka ethylene oxide lagu daro oo lagu hayo wakhti wakhti ah (sida 1.2 h), ethylation ogsijiinta ee glycerol waxaa loo qaadan karaa in la dhamaystiray. Habkan, ku darida soodhaha caustic waxay xisaabisaa qiyaastii 0.1% wadarta guud ee glycerol iyo ethylene oxide. Esterification phosphonate ee polyoxyethylene ether iyo glycerin ayaa lagu sameeyay reactor ee saamiga mass ee 4.5: 1, preheated ilaa 50 ℃, ka dibna fosfooraska pentoxide ayaa si tartiib tartiib ah loogu daray reactor iyadoo loo eegayo saamiga mass ee fosfooraska pentoxide / polyoxyethylene ether glycerol 1: 1.1 ~ 1.2, iyo heerkulku kama badnayn 125 ~ 135 ℃. Ka dib markii fosfooraska pentoxide lagu daro, walxaha ku jira reactor-ka ayaa noqda mid hufan ka dib markii la hayo wakhti wakhti ah, taas oo macnaheedu yahay habka shaandhaynta ayaa la dhammeeyaa. Ku dar biyo si aad u qaboojiso fosfatka u-fiirsashada loo baahan yahay ee heeganka. Jidka synthetic waa sida soo socota:

Marka r-0h + H3PO4 la kululeeyo si loo sameeyo r-h2po4 + H20

(R-0) 2po2h + H2O waxaa lagu diyaariyey kuleyliyaha 2R OH + H3PO4

Ro-pcl4 + 3H2O waxay ka falceliyaan si ay u sameeyaan r-h2po4 + 4hcl

Ethylene glycol, ethylene glycol monoethyl ether, polyoxyethylene ether, glycerol iyo triethanolamine ayaa lagu kululeeyay 75-85 ℃ marka la walaaqo oo la qaso, ka dibna fosfooraska pentoxide ayaa si tartiib ah loogu daray. Ka dib markii fosfooraska pentoxide lagu daray, heerkulka falcelinta waxaa la xakameeyey 130-140 ℃ 1-2 saac. biyaha ayaa lagu daray si ay u qaboojiyaan alaabta isku dhafka ah ee fosfooraska si loo gaaro kaydka tijaabada ee la filayo. Saamiga fal-celiyeyaasha ayaa ahaa triethanolamine, iyo isku dhafka falcelinta ugu fiican waxay ahayd 60:40 ~ 40:60 (saamiga mass). Qiyaasta ugu fiican ee qiyaasta ethylene glycol, ethylene glycol monoether iyo polyoxyethylene ether glycerol waa 1: 4: 4. Ethylene glycol monoethyl ether ayaa lagu dari karaa laba jeer, mid waxaa lagu daraa ethylene glycol iyo polyoxyethylene ether glycerin kahor falcelinta, ka kalena waxaa lagu daraa inta lagu jiro muddada haynta ee 140 ℃.

Burbur wax ka beddel shuruudaha tayada cutubkan

Tixraac shuruudaha farsamada ee lagu qeexay heerka warshadaha hg2228-91

mashruuc

index

Mawduuc adag% ≥ konton

Wadarta ka kooban fosfooraska (waxaa lagu xisaabiyay PO4)% ≥sodon

Waxaa lagu xisaabiyay nuxurka PO4 ≥ shan iyo toban

PH (1% xal aqueous) 2.0-3.0

Habka ogaanshaha ee laalaabida tafatirka qaybtan

Tijaabada waxaa loo sameeyay si waafaqsan habka lagu qeexay heerka hg2228-91.

Badeecooyinka fasalka waxa ku jira fosfoonada dabiiciga ah (oo ay ku jiraan monomono organic iyo bisphosphonates) iyo fosfooraska pentoxide (samaynta fosfooraska aan noolaha lahayn ee biyaha leh), kaas oo si joogto ah loo titrated iyadoo loo marayo habka dhexdhexaadinta.