1. Ni iyihe mikoreshereze nyamukuru ya hydroxypropyl methylcellulose?
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'inganda, urwego rw'ibiribwa n'urwego rw'imiti hakurikijwe ikoreshwa ryayo.
2. Hari ubwoko butandukanye bwa hydroxypropyl methylcellulose. Ni irihe tandukaniro riri hagati yabwo?
HPMC ishobora kugabanywamo ubwoko bw'ingufu (inyunganizi y'ikirango "S") n'ubwoko bw'ingufu zishongesha mu mazi. Ibicuruzwa by'ingufu zishongesha mu mazi akonje bihita bishira mu mazi. Muri iki gihe, amazi nta mvungukira iba ifite kuko HPMC ikwirakwira mu mazi gusa kandi nta muti nyawo ifite. Nyuma y'iminota 2 (kuvanga), mvungukira y'amazi iriyongera buhoro buhoro maze hakavuka colloid ibonerana. Ibicuruzwa bishongesha mu mazi akonje, bishobora gukwirakwira mu mazi ashyushye vuba bikashira mu mazi ashyushye. Iyo ubushyuhe bugabanutse bukagera ku bushyuhe runaka (hakurikijwe ubushyuhe bwa gel bw'ibicuruzwa), mvungukira igaragara buhoro buhoro kugeza havutse colloid ibonerana kandi ivunanye.
3. Ni ubuhe buryo bwo gukoresha umuti wa hydroxypropyl methylcellulose?
1. Imiterere yose ishobora kongerwa ku bikoresho binyuze mu kuvanga byumye;
2. Igomba kongerwamo amazi mu buryo busanzwe bw'ubushyuhe. Ni byiza gukoresha ubwoko bw'amazi akonje yo gukwirakwira. Nyuma yo kongeramo, akenshi igera ku bunini mu minota 10-90 (kangura, kangura, kangura)
3. Ku bikoresho bisanzwe, banza uvange hanyuma ushyiremo amazi ashyushye, hanyuma ushyiremo amazi akonje kugira ngo ashonge nyuma yo kuvanga no gukonjesha.
4. Iyo habayeho gukururana cyangwa gupfunyika mu gihe cyo gushonga, ni ukubera ko gukurura bidahagije cyangwa ko icyitegererezo gisanzwe cyongewe mu mazi akonje. Kuri iyi ngingo, kangura vuba.
5. Iyo uduheri twavutse mu gihe cyo gushonga, dushobora gusigara amasaha 2-12 (igihe runaka giterwa n'uburyo umuti uhagaze) cyangwa tukavanwaho hakoreshejwe ifu, pressurization, nibindi, kandi ingano ikwiye y'umuti ukuraho ifu ishobora no kongerwamo.
4. Ni gute wasuzuma ubwiza bwa hydroxypropyl methylcellulose mu buryo bworoshye kandi bwumvikana?
1. Ubuziranenge. Nubwo ubuziranenge budashobora gupima niba HPMC ari nziza cyangwa atari yo, kandi kongeramo ibikoresho byo kuyungurura mu gihe cyo kuyitunganya bigira ingaruka ku bwiza bwayo, ibicuruzwa byinshi byiza bifite ubuziranenge bwiza.
2. Ubutonyanga: Ubutonyanga bwa HPMC muri rusange ni mesh 80 na mesh 100, munsi ya 120, uko butonyanga niko bwiza kurushaho.
3. Uburyo urumuri rutanga: HPMC ikora koloyide ibonerana mu mazi. Reba uburyo urumuri rutanga. Uko urumuri rutanga urumuri rungana ni ko ubushobozi bwo kwinjira neza, bivuze ko hari ibintu bike bidashonga muri yo. Reakteri ihagaze muri rusange ni nziza, kandi reakteri ihagaze isohora bimwe. Ariko ntabwo byavugwa ko ubwiza bw'ibikoresho bihagaze ari bwiza kuruta ubw'ibikoresho bihagaze. Hari ibintu byinshi bigena ubwiza bw'ibicuruzwa.
4. Uburemere bwihariye: Uko uburemere bwihariye buba bwinshi, ni ko uburemere burushaho kuba bwiza. Uko uburemere bwihariye buba bwinshi, ni ko ingano ya hydroxypropyl iba nyinshi. Muri rusange, uko ingano ya hydroxypropyl iba nyinshi, ni ko amazi arushaho kugumana neza.
5. Ni hydroxypropyl methylcellulose ikoreshwa mu ifu ya putty ingana iki?
Ingano ya HPMC ikoreshwa mu bikorwa nyabyo iratandukanye bitewe n'ahantu n'ahantu, muri rusange, ni hagati ya kg 4-5, bitewe n'ikirere giherereye, ubushyuhe, ubwiza bw'ivu rya kalisiyumu ryo mu gace runaka, formula y'ifu ya putty n'ubuziranenge bw'umukiriya.
6. Ni gute hydroxypropyl methylcellulose ifite ubukana?
Ifu ya putty muri rusange igura RMB 100.000, mu gihe mortier ifite ibisabwa byinshi. Igura RMB 150.000 kugira ngo yoroshye kuyikoresha. Byongeye kandi, akazi k'ingenzi ka HPMC ni ukugumana amazi, hagakurikiraho gukuba. Mu ifu ya putty, igihe cyose amazi agumana neza kandi viscosity ikaba iri hasi (7-8), birashoboka. Birumvikana ko uko viscosity iba nini, ni ko amazi agumana neza. Iyo viscosity iri hejuru ya 100.000, viscosity ntacyo igira ku kubika amazi.
7. Ni ibihe bimenyetso by'ingenzi by'ikoranabuhanga bya hydroxypropyl methylcellulose?
Ibikubiye muri Hydroxypropyl
Ibikubiye muri Methyl
ubushyuhe
Ivu
kugabanya ibiro byumye
8. Ni ibihe bikoresho by'ingenzi bya hydroxypropyl methylcellulose?
Ibikoresho by'ingenzi bya HPMC: ipamba itunganyijwe, methyl chloride, propylene oxide, ibindi bikoresho fatizo, soda ya caustic, na aside toluene.
9. Ikoreshwa n'akamaro k'ingenzi ka hydroxypropyl methylcellulose mu ifu ya putty, ni shimi?
Mu ifu ya putty, igira imirimo itatu y'ingenzi: gukurura, kubika amazi no kubaka. Gukomera bishobora gutuma cellulose ikomera kandi ikagira uruhare rwo kuyihagarika, bigatuma umuti uhora uzamuka kandi ukamanuka, bikarinda kugwa. Gukomeza amazi: Bituma ifu ya putty yumuka buhoro buhoro kandi bigafasha kalisiyumu y'umukara gukora iyo amazi arimo gukora. Uburyo bwo gukora: Cellulose igira ingaruka zo gusiga amavuta, bigatuma ifu ya putty ikora neza. HPMC ntiyitabira ibikorwa bya shimi kandi ikora gusa uruhare rwo gushyigikira.
10. Hydroxypropyl methylcellulose ni eteri ya cellulose itari ionic, none se ubwoko bwa non-ionic ni ubuhe?
Muri rusange, ibintu bidafite ireme ntibigira uruhare mu bikorwa bya shimi.
CMC (carboxymethylcellulose) ni selulosi ya cationic kandi izahinduka ifu ya tofu iyo ihuye n'ivu rya kalisiyumu.
11. Ni iyihe sano iri hagati y’ubushyuhe bwa gel bwa hydroxypropyl methylcellulose?
Ubushyuhe bwa gel ya HPMC bufitanye isano n'ingano ya methoxyl. Uko ingano ya methoxyl iba nke, niko ubushyuhe bwa gel buba bwinshi.
12. Ese hari isano iri hagati y'ifu ya putty na hydroxypropyl methylcellulose?
Ibi ni ingenzi! HPMC ifite amazi make kandi itera ifu.
13. Ni irihe tandukaniro riri hagati y’umuti wo mu mazi akonje n’umuti wo mu mazi ashyushye wa hydroxypropyl methylcellulose?
Ubwoko bwa HPMC bushonga mu mazi akonje buhita bukwirakwira mu mazi akonje nyuma yo gusukurwa na glyoxal, ariko mu by’ukuri ntibushonga. Ubushyuhe buriyongera, ni ukuvuga ko bushonga. Ubwoko bwa hygil bushyushye ntibusukurwa na glyoxal. Glyoxal ni nini kandi ikwirakwira vuba, ariko ifite ubushyuhe buke n’ingano nto, ndetse n’ubundi buryo.
14. Impumuro ya hydroxypropyl methylcellulose ni iyihe?
HPMC ikorwa hakoreshejwe uburyo bwo gushonga ikorwa muri toluene na isopropyl alcohol nk'imiti isukura. Iyo idasukuwe neza, hazabaho impumuro isigaye. (Gukuraho no kongera gukoresha uburyo bwo gushonga ni inzira y'ingenzi yo kunuka impumuro)
15. Ni gute wahitamo hydroxypropyl methylcellulose ikwiye gukoreshwa mu buryo butandukanye?
Ifu ya putty: isaba amazi menshi kandi yoroheye kubaka (ikirango cyifuzwa: 7010N)
Sima isanzwe ishingiye kuri sima: amazi menshi agumana, ubushyuhe bwinshi, ubushyuhe bwihuse (urwego rwemewe: HPK100M)
Gukoresha kole mu bwubatsi: ibicuruzwa byihuse, ubushyuhe bwinshi. (Ikirango cyifuzwa: HPK200MS)
Uduce twa Gypsum: amazi menshi agumana, ubushyuhe buri hagati na hasi, ubushyuhe bwihuse (urwego rwemewe: HPK600M)
16. Izina rindi rya hydroxypropyl methylcellulose ni irihe?
HPMC cyangwa MHPC izwi kandi nka hydroxypropyl methylcellulose na hydroxypropyl methylcellulose ether.
17. Gukoresha hydroxypropyl methylcellulose mu ifu ya putty. Ni iki gituma ifu ya putty ihinduka ifuro?
HPMC igira uruhare runini mu ifu ya putty: gukomera, kubika amazi no kubaka. Impamvu zitera uduheri ni izi:
1. Ongeramo amazi menshi cyane.
2. Niba hasi hatarumye, gukurura urundi rwego hejuru bizatera udusebe byoroshye.
18. Ni irihe tandukaniro riri hagati ya hydroxypropyl methylcellulose na MC:
MC, selulosi ya methyl, ikorwa mu ipamba itunganyijwe nyuma yo gusukurwa na alkali, ikoresheje chloride ya methane nk'ikintu gitanga ubushyuhe, ndetse n'uruhererekane rw'ibikorwa kugira ngo hakorwe eteri ya selulosi. Igipimo rusange cyo gusimbuza ni 1.6-2.0, kandi gushonga kw'ibipimo bitandukanye byo gusimbuza nabyo biratandukanye. Ni eteri ya selulosi idafite ionic.
(1) Uburyo methylcellulose igumana amazi biterwa n'ingano yayo, ubukana, ubukana bw'uduce duto n'umuvuduko wo gusenyuka. Muri rusange, ingano yo kongeramo ni nini, ubukana ni buto, ubukana ni bwinshi, kandi umuvuduko wo kubika amazi ni munini. Ingano yo kongeramo ifite ingaruka zikomeye ku muvuduko wo kubika amazi, kandi ubukana ntaho buhuriye n'umuvuduko wo kubika amazi. Umuvuduko wo gusenyuka uterwa ahanini n'urwego rwo guhindura ubuso n'ubukana bw'uduce duto twa cellulose. Muri ether za cellulose zavuzwe haruguru, methylcellulose na hydroxypropylmethylcellulose bifite umuvuduko wo kubika amazi mwinshi.
(2) Methyl cellulose ishobora gushonga mu mazi akonje, ariko ihura n'ingorane mu gushonga mu mazi ashyushye. Umuti wayo w'amazi uhamye cyane mu gipimo cya pH = 3-12, kandi uhura neza na sitashi n'ibindi bintu byinshi biyitera imbaraga. Iyo ubushyuhe bugeze kuri gel Iyo ubushyuhe bwa gel bwiyongere, gel iba imeze nk'iy'amazi.
(3) Impinduka mu bushyuhe zigira ingaruka zikomeye ku muvuduko wo kubika amazi muri methylcellulose. Muri rusange, uko ubushyuhe burushaho kuba bwinshi, ni ko umuvuduko wo kubika amazi uba mubi kurushaho. Iyo ubushyuhe bwa mortical burenze dogere 40, methylcellulose yo kubika amazi izagabanuka cyane, bikagira ingaruka zikomeye ku bwubatsi bwa mortical.
(4) Methylcellulose igira ingaruka zikomeye ku bwubatsi no gufatana kwa sima. Gufatana hano bivuga gufatana hagati y'igikoresho cy'umukozi n'ibikoresho byo ku rukuta, ni ukuvuga kudafatana kwa sima. Gufatana ni byinshi, kudafatana kwa sima ni byinshi, kandi imbaraga zisabwa n'abakozi mu gihe cyo kuyikoresha nazo ni nyinshi, bityo imikorere y'ubwubatsi bwa sima ni mibi.
Igihe cyo kohereza: 31 Mutarama 2024