Uburemere buke bwa HPMC :HPMC 400 bukoreshwa cyane cyane mu gupima sima, ariko muri rusange butumizwa mu mahanga.
Impamvu: Ubushyuhe buri hasi, nubwo amazi agumana nabi, ariko ubugari ni bwiza, kandi ubucucike bwa mortiweri buri hejuru.
Ubushyuhe buringaniye n'ubushyuhe buke:hydroxypropyl methylcelluloseHPMC 20000-40000 ikoreshwa cyane cyane mu gukora kole y'amatafari, umuti utera gufunga, sima irwanya gucika, sima ifatana n'ubushyuhe, n'ibindi.
Impamvu: gukora neza, kongeramo amazi make, gukoresha sima nyinshi.
1. Intego nyamukuru ya hydroxypropyl methylcellulose (HPMC) ni iyihe?
——A: HPMC ikoreshwa cyane mu bikoresho by'ubwubatsi, irangi, resins zikoze mu nganda, ibumba, ubuvuzi, ibiribwa, imyenda, ubuhinzi, amavuta yo kwisiga, itabi n'izindi nganda. HPMC ishobora kugabanywamo: urwego rw'ubwubatsi, urwego rw'ibiribwa n'urwego rw'imiti hakurikijwe icyo igamije. Kuri ubu, ibicuruzwa byinshi byo mu rugo ni urwego rw'ubwubatsi. Mu rwego rw'ubwubatsi, ingano y'ifu ya putty ni nini cyane, hafi 90% ikoreshwa mu ifu ya putty, naho ibisigaye bikoreshwa mu gukora sima na kole.
2. Hari ubwoko butandukanye bwa hydroxypropyl methylcellulose (HPMC), kandi ni irihe tandukaniro riri hagati y’ikoreshwa ryabyo?
——Igisubizo: HPMC ishobora kugabanywamo ubwoko bw’ingufu zihita n’ubwoko bw’ingufu zihita zishira. Ibikoresho by’ingufu zihita zishira vuba mu mazi akonje hanyuma zikabura mu mazi. Muri iki gihe, amazi nta mvubura aba afite, kuko HPMC ikwirakwira gusa mu mazi kandi nta gushonga nyakuri iba ifite. Nyuma y’iminota 2, mvubura y’amazi yariyongereye buhoro buhoro, ikora colloid ibonerana kandi idafite ishingiro. Ibikoresho bishonga ubushyuhe, iyo bihuye n’amazi akonje, bishobora gukwirakwira vuba mu mazi ashyushye, bikabura mu mazi ashyushye. Iyo ubushyuhe bugabanutse bukagera ku bushyuhe runaka (ibicuruzwa by’ikigo cyacu ni dogere selisiyusi 65), mvubura igaragara buhoro buhoro kugeza ubwo ikoze colloid ibonerana kandi idafite ishingiro. Ubwoko bw’ingufu zihita zishira bushobora gukoreshwa gusa mu ifu ya putty na mortar. Muri kole y’amazi n’irangi, ibintu bihuza bibaho kandi ntibishobora gukoreshwa. Ubwoko bw’ingufu zihita zikoreshwa mu buryo bwinshi. Bushobora gukoreshwa mu ifu ya putty na mortar, ndetse no mu kole y’amazi n’irangi, nta binyuranyo na bimwe.
3. Ni ubuhe buryo bwo gushonga bwa hydroxypropyl methylcellulose (HPMC)?
——Igisubizo: Uburyo bwo gushonga amazi ashyushye: Kubera ko HPMC idashonga mu mazi ashyushye, HPMC ishobora gushonga mu mazi ashyushye mu buryo bumwe mu ntangiriro, hanyuma igashonga vuba iyo ikonje. Uburyo bubiri busanzwe busobanurwa butya:
1) Shyira amazi ashyushye akenewe mu gikoresho hanyuma uyashyushye kugeza kuri dogere selisiyusi 70. Hydroxypropyl methylcellulose yongewemo buhoro buhoro uvanga buhoro buhoro, mu ntangiriro HPMC yarerembaga hejuru y'amazi, hanyuma buhoro buhoro ikora ururenda, rukonjeshwa uvanga.
2), shyiramo 1/3 cyangwa 2/3 by'amazi akenewe mu gikoresho, hanyuma ushyushye kugeza kuri 70 ° C, ukurikije uburyo bwa 1), shyiramo HPMC, tegura amazi ashyushye; hanyuma ongeramo andi mazi akonje mu mazi ashyushye. Muri ayo mazi, uruvange rwarakonjeshejwe nyuma yo kuvanga.
Uburyo bwo kuvanga ifu: Vanga ifu ya HPMC n'ibindi bintu byinshi birimo ifu, uvange neza ukoresheje icyuma gishongesha, hanyuma wongeremo amazi kugira ngo ishonge, hanyuma HPMC ishobora gushonga muri iki gihe idateranye, kuko hari HPMC nkeya muri buri mfuruka nto. Ifu izashonga ako kanya ihuye n'amazi. ——Ubu buryo bukoreshwa n'inganda zikora ifu ya putty na mortar. [Hydroxypropyl methylcellulose (HPMC) ikoreshwa nk'ikintu gikomeza kandi gifata amazi muri mortar ya putty.]
4. Ni gute wasuzuma ubwiza bwa hydroxypropyl methylcellulose (HPMC) mu buryo bworoshye kandi bwumvikana?
——Igisubizo: (1) Ubweru: Nubwo umweru udashobora kumenya niba HPMC yoroshye gukoresha, kandi iyo hongewemo icyuma gitanga urumuri mu ikorwa, bizagira ingaruka ku bwiza bwayo. Ariko, ibicuruzwa byinshi byiza bifite umweru mwiza. (2) Ubwiza: Ubwiza bwa HPMC muri rusange ni mesh 80 na mesh 100, naho mesh 120 ni nkeya. HPMC nyinshi zikorerwa muri Hebei ni mesh 80. Uko ubube bwiza ni ko burushaho kuba bwiza. (3) Kohereza: Shyira hydroxypropyl methylcellulose (HPMC) mu mazi kugira ngo ukore colloid igaragara, kandi urebe uko ikwirakwira. Uko kohereza ari hejuru, ni ko birushaho kuba byiza, bigaragaza ko hari ibintu bike bidashonga muri yo. Ubwiza bw'icyuma gitanga urumuri muri rusange ni bwiza, kandi icyuma gitanga urumuri kiba kibi cyane, ariko ntibivugwa ko ubwiza bw'icyuma gitanga urumuri ari bwiza kuruta ubw'icyuma gitanga urumuri, kandi hari ibintu byinshi bigena ubwiza bw'umusaruro. (4) Uburemere bwihariye: uko uburemere bwihariye ari bwinshi, ni ko uburemere burushaho kuba bwiza. Uburemere bwihariye ni bwinshi, muri rusange kubera ko hydroxypropyl irimo ari nyinshi, kandi hydroxypropyl ikaba nyinshi, bituma amazi aguma neza kurushaho.
5. Ingano ya hydroxypropyl methylcellulose (HPMC) mu ifu ya putty?
——Igisubizo: Ingano ya HPMC ikoreshwa mu bikorwa iratandukanye bitewe n'ikirere, ubushyuhe, ubwiza bwa kalisiyumu y'ivu ryo mu gace runaka, formula y'ifu ya putty n' "ubwiza busabwa n'abakiriya". Muri rusange, ni hagati ya kg 4 na kg 5. Urugero, ifu nyinshi ya putty muri Beijing ni kg 5; ifu nyinshi ya putty muri Guizhou ni kg 5 mu mpeshyi na kg 4.5 mu gihe cy'itumba;
6. Ni ubuhe buryo bukwiye bwo gupima hydroxypropyl methylcellulose (HPMC)?
——Igisubizo: Ifu ya putty muri rusange ni yuan 100.000, kandi sitrove irasaba byinshi, kandi biroroshye kuyikoresha kuri yuan 150.000. Byongeye kandi, uruhare runini rwa HPMC ni ukubungabunga amazi, hagakurikiraho gukomera. Mu ifu ya putty, igihe cyose amazi agumana neza kandi ubukana buri hasi (70.000-80.000), birashoboka kandi. Birumvikana ko ubukana buba bwinshi, kandi ubukana bw'amazi buba bwiza kurushaho. Iyo ubukana burenze 100.000, ingaruka z'ubukana ku bukana bw'amazi ntabwo ziba nyinshi.
7. Ni ibihe bimenyetso by'ingenzi by'ikoranabuhanga bya hydroxypropyl methylcellulose (HPMC)?
——Igisubizo: Ingano ya Hydroxypropyl n'ubukana, abakoresha benshi bita kuri ibi bimenyetso bibiri. Uko ingano ya hydroxypropyl iba nyinshi, ni ko amazi arushaho kugumana neza. Ubukana bwinshi, amazi agumana neza, (aho kuba ayuzuye) ni byiza, kandi ubukana bwinshi, ni byiza gukoresha muri sima.
8. Ni ibihe bikoresho by'ingenzi bya hydroxypropyl methylcellulose (HPMC)?
—— A: Ibikoresho by'ingenzi bya hydroxypropyl methylcellulose (HPMC): ipamba itunganyijwe, methyl chloride, propylene oxide, ibindi bikoresho fatizo birimo alkali ya flake, aside, toluene, isopropanol, nibindi.
9. Ni uruhe ruhare rw'ingenzi rwa HPMC mu ikoreshwa ry'ifu ya putty, kandi hari shimi?
——Igisubizo: HPMC ifite imirimo itatu yo gukurura, kubika amazi no kubaka ifu ya putty. Gukomera: Selilulose ishobora gukurura kugira ngo ihagarare, ikomeze kuba imwe kandi ihamye, kandi irinde kugwa. Gukomeza amazi: Gutuma ifu ya putty yumuka buhoro buhoro, kandi bigafasha imikorere ya kalisiyumu y'ivu munsi y'amazi. Imiterere: Selilulose ifite ingaruka zo gusiga amavuta, bishobora gutuma ifu ya putty ikora neza. HPMC ntiyitabira imikorere iyo ari yo yose ya shimi kandi igira uruhare rw'inyongera gusa. Kongera amazi ku ifu ya putty no kuyishyira ku rukuta ni imikorere ya shimi. Kubera ko ibintu bishya byaremwe, fata ifu ya putty ku rukuta ku rukuta, uyisyamo ifu, hanyuma wongere uyikoreshe. Ntabwo izakora, kuko ibintu bishya (calcium carbonate) byaremwe. ) hejuru. Ibice by'ingenzi bigize ifu ya kalisiyumu y'ivu ni: uruvange rwa Ca(OH)2, CaO n'ingano nto ya CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Kalisiyumu y'ivu mu mazi no mu mwuka Mu gihe cya CO2, kalisiyumu karubone irakorwa, mu gihe HPMC igumana amazi gusa kandi igafasha mu buryo bwiza bwa kalisiyumu y'ivu, kandi ntigira uruhare mu buryo ubwo aribwo bwose.
10. HPMC ni eteri ya cellulose itari ionic, none se iyo itari ionic ni iki?
- Igisubizo: Mu magambo y’abantu basanzwe, ibintu bitari ioni ni ibintu bidahinduka iyoni mu mazi. Iyoniziyo yerekeza ku buryo electrolyte ivangwamo iyoni zigenda zishyushye mu buryo bwigenga mu kintu runaka (nk'amazi, alcohol). Urugero, sodium chloride (NaCl), umunyu urya buri munsi, ushonga mu mazi hanyuma ugahinduka iyoni kugira ngo habeho iyoni zigenda zishyushye (Na+) zifite amashanyarazi meza hamwe na iyoni za chloride (Cl) zifite amashanyarazi mabi. Ni ukuvuga ko iyo HPMC ishyizwe mu mazi, ntabwo ihinduka iyoni zifite amashanyarazi, ahubwo iba mu buryo bwa molekile.
Igihe cyo kohereza: Ukwakira 17-2022