Muri icyo gihe, bishobora kongera imbaraga zo gukanda no gukata imbaraga zaHPMC hydroxypropyl methyl cellulose, kunoza cyane ingaruka nyazo z'ubwubatsi bw'ubuhanga, kunoza imikorere. HPMC hydroxypropyl methyl cellulose ishobora kunoza imbaraga zo gufata neza ifu ya putty, ikagabanya imiterere yo kuyihagarika, kugira ngo iyubakwe neza. Hydroxypropyl methyl cellulose ishobora kongera igihe cyo gukora no gukemura ikibazo cy'imbaraga zo gukanda zidafite aho zihuriye kandi zidahagije mu bwubatsi bw'ubuhanga.
Uburyo bworoshye bwo gufunga amazi bwa morti yo kubaka ubwubatsi bw’ubuhanga na morti yo guteka bushobora gukora sima ivanze bihagije, kandi birumvikana ko ishobora kongera imbaraga zo gufungana za mortiyo. Muri icyo gihe, imbaraga zo gukanda no gukata za hydroxypropyl methyl cellulose bishobora kunozwa mu buryo bukwiye kugira ngo birusheho kunoza ingaruka nyazo z’ubwubatsi bw’ubuhanga no kunoza imikorere.
Mwana urwanya ubushuhe,HPMChydroxypropyl methyl cellulose, ingaruka za hydroxypropyl methyl cellulose mu ifu ya putty, kugira ngo hirindwe kumisha no kuma biterwa no gusohoka vuba cyane kw'amazi. Hydroxypropyl methyl cellulose ishobora kongera imbaraga zo gufatana z'ifu ya putty, ikagabanya imiterere yo kuyihagarika, kandi ikagaragaza ko ubwubatsi bw'ubuhanga bugenda neza.
Urufunguzo rwa HPMC hydroxypropyl methyl cellulose rufite amazi afunga, arushaho gukomera, arushaho kunywesha n'izindi ngaruka, arushaho kubyibuha, akongera kunywesha n'izindi ngaruka bigira ingaruka runaka ku ntangiriro. Hydroxypropyl methyl cellulose ishobora kongera igihe cyo gukora no gukemura ikibazo cy'imbaraga zo gukanda zidafite aho zihuriye kandi zidahagije mu buryo bw'ubwubatsi bw'ubuhanga.
Selulosi ya HPMC hydroxypropyl methyl cellulose mu gikoresho cyo gukingira inkuta igira uruhare runini mu gutuma ibintu bihambira, kandi yongera imbaraga zo gukandagira kw'ibikoresho fatizo. Igikoresho cyo gutwikira cyoroshye cyane, kirushaho kunoza imikorere, gifite imikorere y'ibanze yo kurwanya guhagarara kw'amazi no kugira ingaruka nziza. Imikorere ya selulosi ya hydroxypropyl methyl cellulose ifunga amazi ishobora kongera igihe cyo gukora cya selulosi, kongera imbaraga zo gukomangira no guhagarara, kunoza ubwiza bw'ubuso, no kunoza imbaraga zo gukandagira kw'ibikoresho.
Imashini ifunga amatafari ishongera cyane mu mazi ikuraho gukenera amatafari yo hasi n'ishingiro byamaze kurohama cyangwa bitose, birushaho kunoza imbaraga zo gufunga. Igihe cyo kubaka amatafari yo mu bwoko bwa "slurry engineering" ni kirekire, gikozwe mu buryo bwitondewe, buringaniye, kandi cyoroshye mu bwubatsi bw'ubuhanga, kandi kirwanya ubushuhe neza.
Mu rwego rwo gusiga irangi rya latex karemano, hydroxypropyl methyl cellulose ishobora gukoreshwa nk'ikintu gitanga firime, tackifier, demulsifier na thickener, bityo firime ya pulasitiki ikagira ubushobozi bwo kwangirika neza, guhindagurika no gufatana neza. pH ikoreshwa mu kunoza tension hagati y'urusobe rw'amabara irasobanutse neza, kandi uruvange n'umuti w'umwimerere ni byiza kandi ufite uburyohe bwiza.
Iterambere ry'ubukungu Imitako y'ubwubatsi ifite imbaraga nziza, amazi meza yoroha kandi irwanya gusaza. Gahunda nyayo yo gushushanya formula yo gusiga amabuye ni ingenzi cyane. Lacquer nziza cyane igizwe na emulsion ya styrene-acrylic ya 300KG, 650KG amazi karemano y'amabuye n'ibindi bice. Lacquer nyayo nziza cyane irangwa n'amavuta menshi yo kwisiga. Iyo imiterere y'amazi ya emulsion ari 50%, ingano ya 300KG yo kwisiga nyuma yo kumisha ni litiro 150, naho ingano ya 650KG y'umucanga munini ni litiro 228. Ni ukuvuga ko, muri iki gihe, irangi nyaryo ry'amabuye (agaciro k'umucanga w'amabara) ni 60%. Kubera ingano nini y'uduce n'isura idahwitse y'umucanga mwiza, hakurikijwe isesengura ry'ingano y'uduce, igitambaro cyo hanze cyumye gishobora kuba kiri hafi y'agaciro k'umucanga wa CPVC).
Ku bijyanye na viscosifier, iyo hatoranijwe viscosity ya cellulose ikwiye, irangi ryo hanze rishobora gukora irangi rirambuye kandi ryimbitse, kugira ngo hagerwe ku ngingo eshatu zo gusiga irangi ryo hanze. Amabwiriza atatu yo gusiga irangi mu nyubako. Mu by'ukuri, gukoresha amabuye menshi ahendutse kandi afatika, toni y'umusenyi w'ibanga 100-160kg, umucanga w'amabara 750kg, 20kg (harimo n'inyongera zo gusiga, imiti yica udukoko, imiti yica udukoko, kole, nibindi), ibindi bikoresho byo kwita ku ruhu n'amazi. Ubwoko bw'irangi ry'amabuye nyaryo PVC muri rusange riri hagati ya 75%? Hagati ya 85%, mu gikorwa cyo gukora humutse, irangi ry'amabuye nyaryo biragoye gushyiraho irangi rirambuye kandi rikomeye. Kubwibyo, nigute wakoresha neza uburyo bwo gusiga irangi rito cyane rituma irangi rirushaho kumera neza, kugira ngo irangi ribe ringana uko bishoboka kose.
Imyambaro nyayo y’inyubako z’amabuye ifite imiterere y’uburemere buke (uburemere bwinshi bwa molekile). Kubera izamuka ry’igiciro cy’ibicuruzwa bya selulose, uburemere bwa selulose ikoreshwa buhinduka kuva kuri 30000 bukagera kuri 50000.80000.100000, nubwo bwongerwaho 200000, intego ni ukugabanya ingano yose ya selulose kuva kuri methyl cellulose (HEC) ikagera kuri hydroxyl acrylic cellulose (HPMC); Gukoresha methyl methyl cellulose HPMC bizagabanya cyane uburemere bw’irangi ry’inyubako z’amabuye nyayo, hanyuma kunoza uburemere bwa selulose (uburemere bwa molekile) bizaba ari wo mwanzuro w’imikorere y’irangi ry’amabuye nyayo? Igisubizo ni uko imikorere y’urwego rw’irangi ry’amabuye izarushaho kuba mibi!
HPMC ishobora kugabanywamo ubwoko bushonga vuba na bushyuhe. Iyo amazi akonje atatanye vuba kandi agashira mu mazi, HPMC ishobora kugabanywamo ubwoko bushonga vuba na bushyuhe. Muri iki gihe, amazi nta mvubura afite, kuko HPMC ikwirakwira gusa mu mazi, kandi nta kintu nyacyo cyo gushonga kibaho. Nyuma y'iminota 2, mvubura y'amazi irakura buhoro buhoro, igatanga umuti wa colloid ubonerana. Iyo ibintu bishyushye bya organic solvent byikusanyije mu mazi akonje, bishobora gukwirakwira vuba mu mazi ashyushye bigashira mu mazi ashyushye. Iyo ubushyuhe bw'ikirere bugabanutse ku rugero runaka rw'ubushyuhe, mvubura izagenda ibaho kugeza igihe habonetse umuti wa colloidal ubonerana neza. Ubwoko bwa solvent organic solvent ikoreshwa gusa mu ifu y'imbere mu rukuta na mortier. Muri superglue y'amazi na cartilage, hari umubare udashobora gukoreshwa. Ubwoko bwa quick-solubility bufite icyiciro rusange cyo gukoreshwa. Bushobora gukoreshwa nk'ifu y'imbere mu rukuta na mortier, na superglue y'amazi na cartilage. Nta kirazira.
Amazi ashyushye ashongesha: kuko HPMC mu mazi ashyushye idashongesha, bityo HPMC mu gice cya mbere ishobora gukwirakwizwa mu mazi ashyushye ku buryo bungana, hanyuma igashonga vuba iyo ikonje. Uburyo bubiri bwa kera busobanurwa gutya:
1) Shyira amazi ashyushye ukeneye mu gikoresho hanyuma uyashyushye kugeza kuri dogere selile 70. Vunga buhoro buhoro, ongeramo hydroxypropyl methyl cellulose buhoro buhoro, HPMC ireremba ku ruzi, hanyuma buhoro buhoro utange ubukonje bw'ubukonje mu kuvanga.
2) Shyiramo 1/3 cyangwa 2/3 by'amazi mu gikoresho, ushyushye kugeza kuri 70°C, ushyushye kugeza kuri 70°C kugira ngo HPMC ikwirakwize, hanyuma utegure amazi ashyushye; Amazi akonje asigaye yongerwa mu gikoresho gishyushye hanyuma akavangwa n'uruvange nyuma yo gukonjesha.
Uburyo bwo kuvanga ifu: Ifu ya HPMC ikoresheje blender n'ibindi bikoresho byinshi by'ifu, uruvange ruhagije, hanyuma wongeremo amazi kugira ngo ishonge. Muri iki gihe, HPMC ishobora gushongeshwa mu gihe nta guhurirana kw'amazi, kuko buri mfuruka ntoya ifu ya HPMC gusa, iyo amazi ahita ashongeshwa - ubu buryo ni ugukoresha ifu y'imbere mu rukuta n'ibikoresho bya morti. [HPMC] nk'ikintu gikomeza kandi gitera ubushyuhe mu morti ya ...
Iyi ni imvange isanzwe ya hydroxypropyl methyl cellulose (HMPC) y’ubukorano, iri hafi y’ikintu cya viscoelastic (cyane cyane mucin) mu marira. Ifata ku buso bw’ijisho binyuze mu kwinjiza polymer, kandi iganisha ku ruhare rwa mucin yo mu gice cy’amaso, kugira ngo yongere imiterere ya mucin mu jisho kandi yongere ingaruka zo kunyagirwa kwa cornea.
Mu ifu ya putty, gukurura, kubika amazi no kubaka imikorere itatu. Gukomera, selulose ishobora gukurura kugeza ihagaze, ku buryo umuti ukomeza kuba umwe hejuru no hasi nk'uruhare rwo kurwanya gutemba kw'amazi. Gukomeza amazi: gutuma ifu ya putty yumuka buhoro buhoro, kalisiyumu y'umukara y'inyongera mu bikorwa by'imyitozo y'amazi. Imiterere: amavuta ya selulose, ishobora gutuma ifu ya putty ikora neza. HPMC ntabwo igira uruhare mu bikorwa bya shimi, ahubwo igira uruhare runini mu gushyigikira.
Irangi ry'imiterere rirushaho koroha mu guhitamo ibara, kandi rishobora kugera ku ngaruka nziza mu gushushanya, kandi irangi nyaryo ry'amabuye mu gushaka irangi risanzwe rimeze nk'iry'ibinyabuzima, ni ryiza kuruta irangi ry'imiterere, buri rimwe rifite imbaraga zaryo. Irangi ry'imiterere na lacquer mu gukora, kugira ngo irangi ry'umwimerere rigume rimeze neza, muri rusange mu gikorwa cya nyuma, tugomba gukoresha varnish (amavuta yoroheje) mu gutera kugira ngo turinde ingaruka zaryo mu buhanzi cyangwa ingaruka z'amabuye.
Irangi ry'imiterere y'urukuta ni ubwoko bw'irangi, rikoreshwa cyane cyane mu gushariza inkuta. Urubuga rwemewe rwa diatom mud karemano rugaragaza itandukaniro riri hagati y'irangi ry'imiterere y'urukuta n'uburyo bwo gutandukanya irangi ry'imiterere y'urukuta, irangi ry'imiterere y'urukuta n'uburyo bwo gutandukanya irangi ry'imiterere y'urukuta, ibi bikurikira ni byo bireba itandukaniro riri hagati y'irangi ry'imiterere y'urukuta n'irangi ry'imiterere y'urukuta.
Latex nziza cyane ibiciro biri hejuru, abakora kugira ngo bazigame ikiguzi, ongeramo ingano nto y'ikigereranyo cya emulsion, nyuma yo gukora irangi ryumye ry'amabuye, ubucucike budahagije, irangi ni rinini cyane, imbaraga zo gukanda ziragabanuka, iyo ihuye n'imvura igihe kirekire, imvura izinjira muri irangi, irangi ry'amabuye ni ryera.
Bamwe mu bakora lacquer, bakunze kongeramo cellulose nyinshi ya carboxymethyl, hydroxyethyl cellulose nk'ikintu gikomeza ubushyuhe, ibi bintu bishonga mu mazi cyangwa bigakunda gushonga mu mazi, bikaba bisiga irangi mu gitereko, bigabanya cyane ubushobozi bwo kwirinda amazi mu gitereko.
Igihe cyo kohereza: Kamena-09-2022