1. Ni ubuhe buryo bukoreshwa bwa selile?
HPMCikoreshwa cyane mubikoresho byubwubatsi, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda. HPMC irashobora kugabanywa mubyiciro byinganda, urwego rwibiryo hamwe nu rwego rwa farumasi ukurikije ibisabwa.
2. Hariho ubwoko bwinshi bwa selile, kandi ni irihe tandukaniro mugukoresha kwabo?
HPMC irashobora kugabanwa muburyo bwihuse (izina ryikirango “S”) nubwoko bushyushye. Ibicuruzwa byubwoko bukwirakwira vuba mumazi akonje bikabura mumazi. Muri iki gihe, amazi ntagira ubwiza kuko HPMC ikwirakwizwa mumazi gusa nta gushonga nyabyo. Hafi (gukurura) muminota 2, ubwiza bwamazi bugenda bwiyongera buhoro buhoro, bukora colloid yera yera igaragara. Ibicuruzwa bishyushye, iyo uhuye namazi akonje, birashobora gukwirakwira vuba mumazi ashyushye bikabura mumazi ashyushye. Iyo ubushyuhe bugabanutse ku bushyuhe runaka (ukurikije ubushyuhe bwa gel bwibicuruzwa), ibishishwa bizagenda bigaragara buhoro buhoro kugeza bibaye colloid ibonerana.
3. Ni ubuhe buryo bwo gushonga selile?
1). Moderi zose zirashobora kongerwaho ibikoresho mukuvanga byumye;
2). Iyo bikenewe kongerwaho muburyo butaziguye ubushyuhe busanzwe bwamazi, nibyiza gukoresha ubwoko bukwirakwiza amazi akonje. Mubisanzwe bifata iminota 1-30 kugirango ubyibushye nyuma yo kongeramo (kuvanga no kubyutsa)
3). Icyitegererezo gisanzwe kibanza gukangurwa no gukwirakwizwa namazi ashyushye, hanyuma kigashonga mumazi akonje nyuma yo gukurura no gukonjesha;
4). Niba agglomeration ibaye mugihe cyo gusesa, ni ukubera ko gukurura bidahagije cyangwa icyitegererezo gisanzwe cyongewe kumazi akonje. Muri iki gihe, bigomba gukangurwa vuba. i
5). Niba ibibyimba byabyaye mugihe cyo gusesa, birashobora gusigara bihagaze kumasaha 2-12 (igihe cyihariye kigenwa nuburyo bwo gukemura) cyangwa gukurwaho na vacuuming, kotsa igitutu, nibindi, kandi nuburyo bukwiye bwibikoresho byo gusebanya nabyo birashobora kongerwamo. i
4. Nigute dushobora gusuzuma ubwiza bwa selile muburyo bworoshye kandi bwihuse?
1) Umweru, nubwo umweru udashobora kumenya niba HPMC yoroshye kuyikoresha, kandi niba ibikoresho byera byongewe mubikorwa byo kubyara, bizagira ingaruka kumiterere yabyo, ariko ibicuruzwa byinshi byiza bifite umweru mwiza.
2) Ubwiza: Ubwiza bwaHPMCmuri rusange ifite mesh 80 na mesh 100, mesh 120 ni mike, nibyiza nibyiza.
3) Itumanaho ryoroheje: HPMC imaze gushyirwa mumazi kugirango ikore colloid ibonerana, reba itumanaho ryayo. Ninini yohereza urumuri, nibyiza, byerekana ko harimo ibidashobora gukemuka muri byo, kandi ihererekanyabubasha rya vertical reaction muri rusange ni nziza. , Reaction ya horizontal ni mbi, ariko ntibisobanuye ko ubwiza bwa reaction ya vertical iruta iya reaction ya horizontal, kandi hariho ibintu byinshi byerekana ubwiza bwibicuruzwa.
4) Uburemere bwihariye: Ninini nini nini, niko iremereye. Iyo hejuru uburemere bwihariye, niko hydroxypropyl iri mubicuruzwa. Iyo hydroxypropyl iri hejuru, niko gufata amazi neza.
5. Ingano ya selile iri mu ifu yuzuye?
Umubare wa HPMC ukoreshwa mubikorwa bifatika uterwa nikirere, ubushyuhe, ubwiza bwa calcium y ivu ryaho, amata yifu ya putty hamwe nubwiza busabwa nabakiriya. Hariho itandukaniro ahantu hatandukanye, muri rusange, ni hagati ya 4-5 kg.
6. Ni ubuhe buryo bukwiye bwa selile?
Mubisanzwe, 100.000 yifu yifu irahagije, kandi ibisabwa muri minisiteri ni byinshi, kandi bikenera 150.000 kugirango byoroshye gukoresha. Byongeye kandi, umurimo wingenzi wa HPMC nukubika amazi, ugakurikirwa no kubyimba. Mu ifu ya putty, mugihe cyose gufata amazi ari byiza kandi ibishishwa bikaba bike (7-8), birashoboka. Birumvikana ko hejuru yubukonje, niko gufata amazi ugereranije. Iyo ibishishwa birenga 100.000, ibishishwa nta ngaruka bigira ku gufata amazi. binini.
7. Ni ibihe bimenyetso nyamukuru bya tekinike ya selile?
Hydroxypropyl ibirimo
Ibirimo Methyl
ububobere
Ivu
Gutakaza kumisha
8. Nibihe bikoresho nyamukuru bya selile?
Ibikoresho nyamukuru bya HPMC: ipamba inoze, methyl chloride, okiside ya propylene, soda ya caustic soda, nibindi.
9. Ni ubuhe butumwa nyamukuru bwo gukoresha selile mu ifu yuzuye? Haba hari reaction ya chimique?
Mu ifu yuzuye, ifite uruhare runini rwo kubyimba, gufata amazi no kubaka. Kubyimba, selile irashobora kwiyongera kugirango ihagarike, igumane igisubizo hejuru no hepfo, kandi irwanya kugabanuka. Kubika amazi: kora ifu ya putty yumye gahoro gahoro, kandi ufashe calcium yivu gukora mugihe cyamazi. Ubwubatsi: Cellulose ifite amavuta yo gusiga, ashobora gutuma ifu ya putty yubaka neza. HPMC ntabwo yitabira imiti iyo ari yo yose, ariko igira uruhare gusa.
10. Cellulose ni ether ya selile idafite selile, none non-ionic niki?
Mu magambo y’abalayiki, ibintu bya inert ntabwo bigira uruhare mu myitwarire y’imiti.
CMC (carboxymethyl selulose) ni selile ya cationic cationic, bityo izahinduka curd curd mugihe ihuye na calcium yivu.
11 Ubushyuhe bwa gel bwa selulose bufitanye isano niki?
Ubushyuhe bwa geli ya HPMC bufitanye isano nuburyo bukubiyemo, uburyo bwo hasi bwa methoxy, nubushyuhe bwa gel.
12. Haba hari isano hagati yo gutakaza ifu yifu ya selile na selile?
Hariho umubano! ! ! Nukuvuga ko gufata nabi HPMC bizatera gutakaza ifu (ibikubiye mubikoresho nka ivu, calcium iremereye, na sima, ubushyuhe bwubwubatsi, hamwe nurukuta byose bizagira ingaruka).
13. Ni irihe tandukaniro riri hagati y'amazi akonje ako kanya na selile ishushe ya selile mu gihe cyo kubyara?
Ubwoko bwamazi akonje bwubwoko bwa HPMC buvurwa hejuru na glyoxal, kandi bukwirakwira vuba mumazi akonje, ariko ntibushonga. Irashonga gusa iyo ububobere bwiyongereye. Ubwoko bushyushye ntibuboneka hejuru ya glyoxal. Niba ingano ya glyoxal ari nini, gutatanya bizihuta, ariko ubwiza bwiyongera buhoro, kandi niba umubare ari muto, ibinyuranye bizaba ukuri.
14. Kuki selile ifite umunuko?
HPMC yakozwe nuburyo bwo gukemura ikoresha toluene na isopropanol nkibishishwa. Niba gukaraba atari byiza cyane, hazabaho umunuko usigaye. (Kubogama kutabogamye ninzira yingenzi yumunuko)
15. Nigute ushobora guhitamo selile ikwiye kubwimpamvu zitandukanye?
Ifu yuzuye: isaba kugumana amazi menshi, kubaka byoroshye
Isima isanzwe ishingiye kuri sima: isaba kugumana amazi menshi, kurwanya ubushyuhe bwinshi, hamwe nubwiza bwihuse
Gukoresha kole yubaka: ibicuruzwa byihuse hamwe nubwiza bwinshi. (icyiciro gisabwa
Gypsum mortar: kubika amazi menshi, ubukonje buciriritse kandi buke, ubwiza bwihuse bwiyongera
16. Irindi zina rya selile ni irihe zina?
Bivugwa nka HPMC cyangwa MHPC alias hypromellose, selile hydroxypropyl methyl ether.
17. Gukoresha selile mu ifu ya putty, niyihe mpamvu yo kubyimba ifu ya putty?
Mu ifu yuzuye, HPMC ifite uruhare runini rwo kubyimba, gufata amazi no kubaka. Impamvu zibibyimba ni:
1. Hiyongereyeho amazi menshi.
2. Igice cyo hasi ntabwo cyumye, kuraho ikindi gice hejuru, kandi biroroshye kubira ifuro.
18. Ni irihe tandukaniro riri hagati ya selile na MC:
MC ni methyl selulose, ikozwe muri ether ya selile mu kuvura ipamba inoze hamwe na alkali, ikoresheje metani chloride nka etherification, kandi ikagira ingaruka zitandukanye. Mubisanzwe, urwego rwo gusimburwa ni 1.6-2.0, kandi gukemura biratandukanye hamwe ninzego zitandukanye zo gusimburwa. Bitandukanye, ni ibya selile ionic selile.
. Mubisanzwe, niba umubare wongeyeho ari munini, ubwiza ni buto, kandi ubwiza ni bunini, igipimo cyo gufata amazi ni kinini. Muri byo, umubare wongeyeho ufite ingaruka nyinshi ku kigero cyo gufata amazi ya muntu. Ubukonje ntabwo bujyanye nigipimo cyo gufata amazi. Igipimo cyo guseswa ahanini biterwa nubuso bwa selile. Impamyabumenyi yo guhindura no kugereranya neza. Muri ethers nyinshi za selile zavuzwe haruguru, igipimo cyo gufata amazi ya methyl selulose na selinose ya Jinshuiqiao kiri hejuru.
(2) Methylcellulose irashonga mumazi akonje, kandi bizagorana gushonga mumazi ashyushye. Igisubizo cyamazi cyacyo kirahagaze neza murwego rwa ph = 3-12. Ifite guhuza neza na krahisi, nibindi byinshi na surfactants. Iyo ubushyuhe Iyo ubushyuhe bwa gelation bugeze, gelation izabaho.
(3) Imihindagurikire yubushyuhe izagira ingaruka zikomeye ku kigero cyo gufata amazi ya methyl selile. Mubisanzwe, uko ubushyuhe buri hejuru, niko igipimo cyo gufata amazi ari kibi. Niba ubushyuhe bwa minisiteri burenze dogere 40, kugumana amazi ya methyl selulose bizagabanuka cyane, bizagira ingaruka zikomeye ku iyubakwa rya minisiteri.
(4)Methyl selileifite ingaruka zikomeye mubwubatsi no gufatira minisiteri. Gufatanya hano bivuga imbaraga zifatika zumvwa hagati yumukozi usaba umukozi nu rukuta rwubatswe, ni ukuvuga kurwanya ubukana bwa minisiteri. Kwizirika hejuru ni byinshi, kurwanya inkweto za minisiteri ni nini, kandi imbaraga zisabwa n'abakozi mu gihe cyo gukoresha nazo ni nini, kandi imikorere ya minisiteri ikennye.
Igihe cyo kohereza: Apr-25-2024