Isi yose - Premier Propylene Glycol: Ikinyabutabire cy'ibinyabuzima gifite imikorere myinshi

Imiterere y'umubiri n'imiti

Isura n'impumuro mbi: Propylene glycol igaragara nk'amazi adafite ibara, abonerana kandi afite imiterere y'urumuri. Ifite uburyohe buke kandi nta mpumuro igira, ibi bigatuma ikoreshwa aho bikenewe kugira imiterere y'ubwonko idafite aho ihuriye n'ubwonko.

Gushonga: Igaragaza uburyo bwo kuvanga neza, ikaba ishobora kuvanga neza n'amazi, ethanol, ether, acetone, chloroform, n'ibindi bintu byinshi bivangwa n'ibinyabuzima. Iyi miterere ituma ikora nk'ikintu gitanga umusaruro mwiza kandi gitera imbaraga mu buryo butandukanye.

Ibintu by'ingenzi bihoraho: Ifite uburemere bwa molar bwa 76.09 g/mol, propylene glycol ifite ubucucike bwa hafi 1.036 g/cm³ kuri 25°C, ikaba ifite ubucucike burenze gato amazi. Aho ishongesha ni - 59°C, bigatuma iguma mu rugero rw'amazi mu bushyuhe bwinshi. Aho ishongesha ni 188.2°C munsi y'igitutu gisanzwe, bigaragaza ko ihamye mu bushyuhe busanzwe. Aho ishongesha ni henshi, hafi 99°C (ifunze - igikombe), bigabanya ibyago byo gushya ku buryo butunguranye.

Uburyo bwo gukora imiti: Nk’uko diol, propylene glycol ishobora kugira uruhare mu bikorwa bitandukanye bya shimi bisanzwe mu matsinda y’inzoga. Ishobora gukora esters iyo ihuye na aside karubokisilike, ibi bikaba ari ingenzi mu gukora ibintu byinshi byo mu nganda no mu bicuruzwa bikoreshwa. Byongeye kandi, ishobora kugira ingaruka zo kubura amazi mu bihe runaka, biganisha ku ikorwa rya ethers cyclic intramolecular cyangwa polymers intermolecular.

Ahantu ho Gukoresha Serivisi

Inganda z'ibiribwa n'ibinyobwa: Propylene glycol ifite imirimo myinshi muri uru rwego. Ikora nk'ikintu gifasha mu kubungabunga ubushuhe mu biribwa nko mu biryo bitetse, mu nganda zitunganya amata, bityo ikongera igihe cyabyo cyo kubaho no kubungabunga imiterere yabyo. Nk'ikintu gishongesha, ikoreshwa mu gushonga uburyohe, amabara, n'ibintu bibungabunga, bigatuma habaho ubwinshi bw'ibiribwa n'ibinyobwa. Urugero, ikunze kuboneka mu birungo by'amazi ku binyobwa bidasembuye no mu gutwara amavuta y'ingenzi mu biribwa. Yemejwe kandi nk'inyongeramusaruro ku biribwa (E1520) mu Muryango w'Ubumwe bw'u Burayi, kandi muri rusange yemerwa nk'inyongeramusaruro (GRAS) n'Ikigo gishinzwe ibiribwa n'imiti muri Amerika (FDA) iyo ikoreshejwe mu buryo bugenwe.

Inganda zikora imiti: Mu by’imiti, propylene glycol igira uruhare runini. Ikoreshwa cyane nk'umuti ushongesha imiti idashongesha mu mazi byoroshye, bigatuma ikoreshwa mu miti inyobwa, iterwa, cyangwa ikoreshwa mu ruhu. Urugero, mu miti myinshi yo mu mazi inyobwa, propylene glycol ifasha gushonga ibikoresho bikora mu miti, bigatuma ikoreshwa neza. Mu miti inyobwa nko mu mavuta n'amavuta, ikora nk'umuti utuma uruhu ruhumeka kandi rukongera ubushobozi bwo kwinjira mu mubiri, bigatuma uruhu rufata imiti. Ifite kandi ubushobozi bwo kurwanya bagiteri n'imiti irwanya udukoko, bigira uruhare mu kubungabunga imiti ikoreshwa mu miti.

Ibyerekeye ubwiza n'ubwitabire bw'umuntu ku giti cye: Propylene glycol ni ikintu cy'ingenzi mu bintu byinshi byo kwisiga no kwita ku mubiri. Mu bikoresho byo kwisiga nk'ibinyabutabire, serumu, n'ibisukura, bikora nk'umuti uhumeka, bikavana ubushuhe mu kirere bikabuhambira ku ruhu, bityo bigatuma uruhu rugumana amazi. Imiterere yabyo ituma bishobora gushonga ibintu bitandukanye bikora neza n'impumuro nziza, bigatuma bikwirakwira mu bikoresho bimwe. Ikoreshwa kandi mu bikoresho byo kwisiga umusatsi nka shampoo na conditioner kugira ngo inoze imiterere yabyo kandi ifashe mu kugeza ibintu by'ingirakamaro ku musatsi. Mu gutunganya inzara, propylene glycol ikora nk'ibumba, ikarinda ko ibumba ricika intege kandi rigacikagurika byoroshye.

Porogaramu zo mu nganda: Propylene glycol ni ingenzi cyane mu gukora ibikoresho bitandukanye by’inganda. Ni ingenzi cyane mu gukora resins za polyester zidafite ubushyuhe, zikoreshwa cyane mu gukora pulasitiki zikonjeshwa na fiberglass. Izi plastiki zikoreshwa mu nganda nka za automotive, ubwubatsi, n’izikomoka mu mazi, bitewe n’uko zifite imbaraga nyinshi - kugeza ku buremere ndetse no kudakora ingese. Mu nganda z’imodoka, propylene glycol - antikonjeze na coolant formulations zikoreshwa mu kugena ubushyuhe bwa moteri, gukumira ubushyuhe bwinshi no gukonjesha. Ikora kandi nk'ikintu gisukura kandi gitwara ibintu mu gutwikira, wino, na kole, yongera imikorere n'ubushobozi bwabyo.

Uburyo bwo gutegura

Hydrolysis ya Epoxy Propane: Ubu ni bumwe mu buryo busanzwe bwo mu nganda. Muri ubu buryo, epoxy propane (propylene oxide) ihura n'amazi mu gihe hari catalyst. Iyo reaction ishobora kubaho mu bihe bitandukanye. Mu buryo bwo gukoresha amazi mu buryo butaziguye, hakoreshwa ubushyuhe bwinshi (hafi 150 - 200°C) n'umuvuduko (0.98 - 2.94 MPa), hamwe n'ikigereranyo cya propane molar ya epoxy - kuri epoxy ubusanzwe hafi 20. Nubwo igipimo cyo guhindura epoxy propane muri propylene glycol gishobora kugera kuri 85%, hari na polypropylene glycol by - products. Ubundi buryo ni hydrolysis ya aside - catalyzed, aho hongerwamo ingano nto ya aside catalyst (nka aside sulfuric). Iyo reaction ikorwa ku bushyuhe buri hasi (50 - 70°C), kandi umusaruro uvamo ugomba gukurwaho no gusukurwa binyuze mu nzira nka vacuum distillation kugira ngo haboneke propylene glycol ifite ubuziranenge bwinshi.

Hydrogenolysis ya Glycerol Catalytic: Gliseroli ishobora gukoreshwa nk'ibikoresho fatizo byo gukora propylene glycol. Muri ubu buryo, glycerol ibanza kunyura mu matsinda yayo ya hydroxyl, hanyuma hagakurikiraho kubura amazi mu mubiri kugira ngo habeho ibintu biri hagati nka enols na keto-aldehyde tautomers. Ibi bicuruzwa biri hagati bihita binyura mu hydrogenation imbere y'ikintu gitera imbaraga (nk'icyuma gitera imbaraga gifite umuringa), amaherezo bigatanga 1,2-propylene glycol. Ubu buryo bufite akarusho ko gukoresha ibiryo bishobora kongera gukoreshwa (glycerol), bishobora kuboneka mu masoko nka biodiesel.

Uburyo bw'ikoranabuhanga rya Biotechnology: Udukoko tumwe na tumwe, nk'ubwoko bumwe na bumwe bwa bagiteri n'umusemburo, dushobora gukorwa kugira ngo dukore propylene glycol binyuze mu nzira zo gushyushya. Urugero, binyuze mu guhindura Escherichia coli cyangwa Klebsiella pneumoniae mu buryo bwa genetiki, dushobora gukorwa kugira ngo duhindure isukari (nka glucose) cyangwa glycerol muri propylene glycol. Ubu buryo bwa biotechnological burarengera ibidukikije ugereranije n'uburyo gakondo bwa shimi, kuko bukora mu bihe byoroshye kandi bushobora gukoresha amasoko ya karuboni yongera gukoreshwa. Ariko, umusaruro n'ikiguzi cy'ubu buryo biracyari ahantu hagomba gukorwa ubushakashatsi n'iterambere.

Amabwiriza yo Kwirinda

Ibitekerezo ku buzima: Nubwo propylene glycol muri rusange ifatwa nk'aho ari nziza gukoreshwa mu biribwa, imiti, n'amavuta yo kwisiga mu buryo bwemewe, kuyinywa ku rugero rwo hejuru bishobora kugira ingaruka mbi ku buzima. Kuyinywa ku rugero runini bishobora gutera ibimenyetso nko kugira isesemi, kuruka, no gucibwamo. Mu bihe bikomeye, bishobora gutera aside metabolike, indwara aho umubiri wirundanya aside nyinshi. Guhura n'uruhu na propylene glycol byiganjemo bishobora gutera uburibwe kuri bamwe mu bantu, cyane cyane abafite uruhu rworoshye. Kuyinywa igihe kirekire cyangwa kenshi bigomba kwirindwa. Iyo ikoreshejwe mu nganda, guhumeka neza ni ngombwa kugira ngo hirindwe guhumeka umwuka wa propylene glycol, kuko guhumeka ku rugero rwo hejuru bishobora gutera ububabare mu guhumeka.

Inkongi z'umuriro n'ibisasu: Propylene glycol irashya, nubwo ifite aho ikura cyane. Umwotsi wayo ushobora gukora uruvange rw'ibiturika hamwe n'umwuka mu bihe bimwe na bimwe. Ahantu ho kubika no gufata hagomba kubikwa kure y'inkongi z'umuriro, ibishashi, n'ibindi bishongesha umuriro. Ibikoresho byo kubikamo ibintu bidashya umuriro n'ibikoresho byo kuzimya umuriro bikwiye kuboneka ahantu propylene glycol ibikwa cyangwa ikoreshwa.
Ingaruka ku bidukikije: Nubwo propylene glycol ishobora kubora, kurekura ibintu byinshi mu bidukikije, cyane cyane mu mazi, bishobora kugira ingaruka. Mu mikorere y'amazi yo mu mazi, ishobora gukoresha ogisijeni mu gihe ibora, bikaba byagira ingaruka ku binyabuzima byo mu mazi. Kubwibyo, hagomba gushyirwaho ingamba zikwiye zo gucunga imyanda no kuyirinda kugira ngo hirindwe ko propylene glycol irekurwa mu bidukikije mu buryo butagenzurwa.

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