1. Intego nyamukuru ya HPMC ni iyihe?
Iki gicuruzwa gikoreshwa nk'ikintu gikomeza gukurura, gukwirakwiza, gufunga, gusiga amavuta, gusiga amavuta, gusogongera, gusya no gusiga amavuta mu nganda z'imyenda. Gikoreshwa cyane mu nganda zikora imyenda ya sintetike, peteroli, ibumba, impapuro, uruhu, imiti, ibiribwa n'ubwiza.
2. Ni uruhe ruhare rwaHPMCmu ifu y'imbere y'umunyururu wo ku rukuta?
HPMC ifite imirimo itatu: ifu y'isukari ku rukuta rw'imbere, gukurura, gufunga amazi no kubaka. Uburyo bwo gufunga: Selulose ya Methyl ishobora guhuzwa n'amazi areremba cyangwa aqueous kugira ngo ikomeze gukora neza kandi idahindagurika kandi irinde gutemba no kumanika. Amazi afunga: Ifu y'imbere ku rukuta yumuka buhoro buhoro, kandi calcium y'indimu yongewemo igaragara mu ikoreshwa ry'amazi. Imiterere y'ubuhanga: Selulose ya Methyl ifite imikorere yo kunywesha, ishobora gutuma ifu y'imbere ku rukuta igira imiterere myiza y'ubuhanga. HPMC ntabwo igira uruhare mu guhindura imiti yose, ahubwo igira uruhare gusa mu kongera kuyikoresha. Ifu y'imbere ku rukuta, ku rukuta, ni impinduka ya shimi, kuko hari impinduka nshya ya shimi, ifu y'imbere ku rukuta ikurwa ku rukuta, igasya, hanyuma ikongera gukoreshwa, Kubera ko hakozwe ikintu gishya cya shimi (calcium bicarbonate). Ibice by'ingenzi bigize ifu ya kalisiyumu y'ikijuju 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'ikijuju mu mazi no mu mwuka Mu gihe CO2 ikora, kalisiyumu karubone iraremwa, mu gihe HPMC igumana amazi gusa kandi igafasha mu buryo bwiza bwa kalisiyumu y'ikijuju, kandi ntabwo igira uruhare mu buryo ubwo aribwo bwose.
3. Uburyo bwo gusuzuma ubwiza bwaHPMCmu buryo bworoshye kandi bwumvikana?
(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 byiza bifite umweru mwiza. (2) Ubwiza: Ubwiza bwa HPMC muri rusange ni mesh 80 na mesh 100, mesh 120 ni nkeya, kandi HPMC nyinshi zikorerwa muri Hebei ni mesh 80. Uko ubuziranenge burushaho kuba bwiza, ni ko muri rusange biba byiza. (3) Kohereza: Shyira hydroxypropyl methylcellulose (HPMC) mu mazi kugira ngo ukore colloid igaragara, hanyuma urebe uko yohereza. Uko kohereza ari nyinshi, ni ko biba byiza, bigaragaza ko hari ibintu bike bidashonga imbere. . Ubwiza bw'icyuma gitanga urumuri muri rusange ni bwiza, kandi icyuma gitanga urumuri kiba kibi cyane, ariko ntibivuze ko ubwiza bw'icyuma gitanga urumuri ari bwiza kuruta ubw'icyuma gitanga urumuri. Ubwiza bw'igicuruzwa buracyaterwa n'ibintu byinshi. (4) Igipimo: Uko igipimo ari kinini, ni ko uburemere burushaho kuba bwiza. Ubuhanga bwinshi muri rusange buterwa n’uko hydroxypropyl irimo nyinshi, kandi uko hydroxypropyl irimo nyinshi, ni ko amazi arushaho kugumana neza.
4. Ni iki kigomba kwitabwaho mu gihe cyo gukoresha ubushyuhe n'ubukonje bwa HPMC?
Ubushyuhe bwa HPMC bungana mu buryo bunyuranye n'ubushyuhe, ni ukuvuga ko ubushyuhe bwiyongera uko ubushyuhe bugabanuka. Ubusanzwe tuvuga ko ubushyuhe bw'ikintu bushingira ku bisubizo byo kugerageza 2% by'amazi ku bushyuhe bwa dogere selisiyusi 20. Mu bikorwa bifatika, mu turere dufite itandukaniro rinini ry'ubushyuhe hagati y'impeshyi n'itumba, ni ngombwa kumenya ko ari byiza gukoresha ubushyuhe buke mu gihe cy'itumba, ibyo bikaba byoroshye mu bwubatsi. Bitabaye ibyo, iyo ubushyuhe buri hasi, ubushyuhe bwa selulose buzazamuka, kandi ikiganza kizumva kiremereye iyo gikuriwe.
5. Ni ubuhe buryo bwo gusenya bwa HPMC?
Uburyo bwo gushonga amazi ashyushye: Kubera ko HPMC idashonga mu mazi ashyushye, HPMC ishobora gushonga mu mazi ashyushye mu ntangiriro, hanyuma igashonga vuba iyo ikonje. Uburyo bubiri busanzwe busobanurwa butya: 1). Ingano y'amazi ashyushye igashyuha kugeza kuri dogere selisiyusi 70. Shyiramo buhoro buhoro hydroxypropyl methylcellulose uvanga buhoro buhoro, tangira HPMC ireremba hejuru y'amazi, hanyuma buhoro buhoro ukore ururenda, hanyuma ukonjeshe ururenda uvanga. 2). Shyiramo 1/3 cyangwa 2/3 by'amazi akenewe mu gikoresho hanyuma ushyushye kugeza kuri dogere selisiyusi 70. Dukurikije uburyo bwa 1), shyira HPMC mu gukusanya ururenda rw'amazi ashyushye; hanyuma ongeramo amazi akonje asigaye mu mazi ashyushye. Muri ururenda, shyiramo ururenda nyuma yo kuvanga. Uburyo bwo kuvanga ifu: vanga ifu ya HPMC n'ibindi bikoresho byinshi by'ifu, uvange neza ukoresheje blender, hanyuma wongeremo amazi kugira ngo ishonge, hanyuma HPMC ishobora gushonga muri iki gihe idateranye cyangwa ngo iteranye, kuko buri mfuruka ntoya, haba hari agace gato ka HPMC. Ifu izashonga ako kanya iyo ihuye n'amazi. -Abakora ifu ya putty na mortar bakoresha ubu buryo. [Hydroxypropyl methyl cellulose (HPMC) ikoreshwa nk'ikintu gikomeza kandi gifata amazi muri mortar ya putty.]
6. Igipimo cya HPMC cyongerwa mu ifu ya putty ni ikihe?
Ingano yaHPMCIkoreshwa mu buryo nyabwo ritandukanye bitewe n'ikirere, ubushyuhe, ubwiza bwa kalisiyumu y'ivu, formula y'ifu ya putty, n' "ubwiza busabwa n'abakiriya". Muri rusange, ni hagati ya kg 4 na kg 5. Urugero, ifu ya putty mu mitako'>Beijing igizwe ahanini na kg 5; ifu ya putty muri Guizhou igizwe ahanini na kg 5 mu mpeshyi na kg 4.5 mu gihe cy'itumba; ingano y'inyongera ya Yunnan ni nto, muri rusange igizwe na kg 3-4 n'ibindi.
Igihe cyo kohereza: 26 Mata 2024