Polyol phosphate

Phosphate polyol ndi mtundu wa mankhwala okhala ndi mamolekyulu a po4hr1r2.

mfundo zofunika

Dzina lachi China: polyol phosphate

Polyglycerol phosphate

Mulingo wa molekyulu: po4hr1r2

Maonekedwe: madzi opanda mtundu kapena achikasu owonekera

Dzina lina: polyether phosphate

N1, N2 ndi N3 akhoza kukhala 0 kapena 1 motsatana.

Makhalidwe a physicochemical a gawo ili ndi awa:

Polyol phosphates akhoza kugawidwa m'mitundu iwiri: mtundu A ndi polyoxyethylene etha phosphate, yomwe ndi phala la bulauni; mtundu B ndi nayitrogeni wokhala ndi polyol phosphate, osakaniza a polyhydroxy compounds, amene ndi wakuda viscous madzi. Kusungunuka kwa organic phosphoric acid m'madzi kumachepa ndi kuchuluka kwa R alkyl carbon atomu nambala. Ma monoester ndi ma diesters a phosphate esters ndi acidic ndipo amatha kuwola ayoni a haidrojeni mu njira yamadzi; mu alkaline sing'anga, kuwonongeka uku kumafulumizitsa. Ngakhale imachedwa pang'ono kuposa polyphosphate, ndiyosavuta kuyiyika pamadzi otentha komanso amchere. Mlingo wa hydrolysis ndi ka 10 kuposa momwe mumakhalira. Pamene hydrolysis ichitika, dzimbiri ndi kulepheretsa sikelo zidzatayika. Phosphate yopangidwa imatha kuphatikizika ndi ayoni a calcium m'madzi kupanga sikelo ya calcium phosphate yokhala ndi kusungunuka kochepa.

Kupinda kolemba kusintha ndimeyi

Nthawi zambiri, glycerol imapangidwa ndi okosijeni ndi phosphate kenako ndi esterified ndi phosphonic acid. Makutidwe ndi okosijeni a glycerol ndi awa: kusakaniza glycerol ndi ufa caustic koloko, kutentha kwa 150 ℃ pansi pa chitetezo cha inert mpweya, ndiyeno kuwonjezera ethylene okusayidi kuti ethylene oxide malinga ndi molar chiŵerengero cha ethylene okusayidi kuti glycerol 2: 1, ndi kusunga kutentha kwa 150-160 ℃. Pamene ethylene oxide ikuwonjezeredwa ndikusungidwa kwa nthawi (monga 1.2 h), mpweya wa ethylation wa glycerol ukhoza kuganiziridwa kuti watha. Pochita izi, kuwonjezera kwa caustic soda kumapanga pafupifupi 0.1% ya kuchuluka kwa glycerol ndi ethylene oxide. The phosphonate esterification wa polyoxyethylene efa ndi glycerin unachitikira riyakitala pa misa chiŵerengero cha 4.5: 1, preheated kuti 50 ℃, ndiyeno phosphorous pentoxide pang'onopang'ono anawonjezera mu riyakitala malinga ndi kuchuluka chiŵerengero cha phosphorous pentoxide / polyoxyethylene ether glycerol. 1:1.1 ~ 1.2, ndipo kutentha sikunapitirire 125 ~ 135 ℃. Pambuyo powonjezera phosphorous pentoxide, zinthu zomwe zili mu riyakitala zimawonekera pambuyo pogwira kwa nthawi, zomwe zikutanthauza kuti esterification yatha. Onjezani madzi kuziziritsa phosphate ku ndende yofunikira pakuyimirira. Njira ya synthetic ili motere:

Pamene r-0h + H3PO4 yatenthedwa kupanga r-h2po4 + H20

(R-0) 2po2h + H2O inakonzedwa ndi kutentha 2R OH + H3PO4

Ro-pcl4 + 3H2O imachita kupanga r-h2po4 + 4hcl

Ethylene glycol, ethylene glycol monoethyl ether, polyoxyethylene ether, glycerol ndi triethanolamine anatenthedwa mpaka 75-85 ℃ posonkhezera ndi kusanganikirana, ndiyeno phosphorous pentoxide anawonjezedwa pang’onopang’ono. Pambuyo powonjezera phosphorous pentoxide, kutentha kumayendetsedwa pa 130-140 ℃ kwa 1-2 h. madzi adawonjezeredwa kuti aziziziritsa mankhwala a phosphoric acid kuti afikire malo oyezetsa omwe akuyembekezeka. Chiŵerengero cha reactants chinali triethanolamine, ndipo yabwino anachita osakaniza anali 60:40 ~ 40:60 (misa chiŵerengero). The optimum mass ratio of ethylene glycol, ethylene glycol monoether ndi polyoxyethylene ether glycerol ndi 1:4:4. Ethylene glycol monoethyl ether akhoza kuwonjezeredwa kawiri, wina amawonjezedwa pamodzi ndi ethylene glycol ndi polyoxyethylene etha glycerin asanayankhe, ndipo winayo amawonjezedwa pa nthawi yogwira 140 ℃.

Gonjetsani sinthani zofunikira zandimeyi

Onani zofunikira zaukadaulo zomwe zafotokozedwa muyeso yamakampani hg2228-91

polojekiti

index

Zolimba% ≥makumi asanu

Zonse za phosphorous (zowerengedwa ndi PO4)% ≥makumi atatu

Kuwerengeredwa ndi PO4 zomwe zili ≥khumi ndi zisanu

PH (1% yankho lamadzi)2.0-3.0

Njira yodziwira yopindika kusintha gawoli

Kuyesedwa kunachitika motsatira njira yomwe yafotokozedwa mu hg2228-91 muyezo.

Zogulitsa m'kalasi zimakhala ndi Organic phosphonates (kuphatikiza organic mono ndi bisphosphonates) ndi phosphorous pentoxide (kupanga inorganic phosphoric acid ndi madzi), yomwe imatha kusinthidwa mosalekeza ndi njira ya neutralization.