Ibibazo Bikunze Kubazwa na Hydroxypropyl Methyl Cellulose

1. Ni iyihe mikoreshereze nyamukuru ya hydroxypropyl methylcellulose (HPMC)?

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, ifu ya putty ikoreshwa cyane, hafi 90% ikoreshwa mu ifu ya putty, naho ibisigaye bigakoreshwa mu gukora sima na kole.

2. Hari ubwoko butandukanye bwa hydroxypropyl methylcellulose (HPMC), kandi ni irihe tandukaniro riri hagati y’ikoreshwa ryabyo?

HPMC ishobora kugabanywamo ubwoko bw'ingufu zihita n'ubwoko bw'ingufu zishyushye. Igicuruzwa cy'ingufu zihita zikwirakwira vuba mu mazi akonje hanyuma zikabura mu mazi. Muri iki gihe, amazi nta mvubura aba afite kuko HPMC ikwirakwira gusa mu mazi nta gushonga nyako. Mu minota 2, mvubura y'amazi yiyongera buhoro buhoro, igakora colloid ibonerana. Ibicuruzwa bishyushye, iyo bihuye n'amazi akonje, bishobora gukwirakwira vuba mu mazi ashyushye bikabura mu mazi ashyushye. Iyo ubushyuhe bugabanutse ku bushyuhe runaka, mvubura izagenda igaragara buhoro buhoro kugeza igihe ikoze colloid ibonerana. Ubwoko bw'ingufu zishyushye bushobora gukoreshwa gusa mu ifu ya putty na mortar. Muri kole y'amazi n'irangi, hazabaho ibintu byo gushyira hamwe kandi ntibishobora gukoreshwa. Ubwoko bw'ingufu zihita bukoreshwa mu buryo bwinshi. Bushobora gukoreshwa mu ifu ya putty na mortar, ndetse na kole y'amazi n'irangi, nta binyuranyo na kimwe.

3. Ni ubuhe buryo bwo gushonga bwa hydroxypropyl methylcellulose (HPMC)?

Uburyo bwo gushonga mu mazi ashyushye: Kubera ko HPMC idashonga mu mazi ashyushye, HPMC ishobora gushonga neza mu mazi ashyushye mu ntangiriro, hanyuma igashonga vuba iyo ikonje. Uburyo bubiri busanzwe busobanurwa gutya:

1) Shyira amazi ashyushye akenewe mu gikoresho hanyuma uyashyushye kugeza kuri dogere selisiyusi 70. Hydroxypropyl methylcellulose yongewemo buhoro buhoro mu kuvanga buhoro buhoro, mu ntangiriro HPMC yarerembaga hejuru y'amazi, hanyuma buhoro buhoro ikora ururenda, rukonjeshwa mu kuvanga.

2), ongeramo 1/3 cyangwa 2/3 by'amazi akenewe mu gikoresho, hanyuma ushyushye kugeza kuri 70°C, unyanyagize HPMC ukurikije uburyo bwa 1), hanyuma utegure amazi ashyushye; hanyuma ongeramo andi mazi akonje ku mazi ashyushye, uruvange rugakonjeshwa 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 nta guhurirana, kuko hari HPMC nkeya muri buri mfuruka ntoya Ifu izashonga ako kanya iyo ihuye n'amazi. ——Abakora ifu ya putty na mortar bakoresha ubu buryo. [Hydroxypropyl methylcellulose (HPMC) ikoreshwa nk'ikintu gikomeza ubukonje no kubika amazi muri mortar ya putty.]

4. Ni gute wasuzuma ubwiza bwa hydroxypropyl methylcellulose (HPMC) mu buryo bworoshye kandi bwumvikana?

(1) Ubuziranenge: Nubwo ubuziranenge budashobora kugaragaza niba HPMC yoroshye gukoresha, kandi niba hongewemo ibikoresho byo kuyungurura mu gihe cyo kuyitunganya, bizagira ingaruka ku bwiza bwayo. Ariko, ibicuruzwa byinshi byiza bifite ubuziranenge bwiza.

(2) Ubutonyanga: Ubutonyanga bwa HPMC muri rusange bufite mesh 80 na mesh 100, naho mesh 120 ni nkeya. HPMC nyinshi ikorerwa muri Hebei ni mesh 80. Uko ubutonyanga burushaho kuba bwiza, muri rusange, niko biba byiza.

(3) Kohereza urumuri: shyira hydroxypropyl methylcellulose (HPMC) mu mazi kugira ngo habeho colloid ibonerana, hanyuma urebe uko urumuri rwayo rugenda. Uko urumuri rugenda rwinshi, ni ko rugenda rwiza, bigaragaza ko hari ibintu bike bidashonga muri byo. . Ihererekanya ry'imashini zihagaze muri rusange riba ryiza, naho iry'imashini zihagaze muri rusange riba ribi cyane, ariko ntibivuze ko ubwiza bw'imashini zihagaze ari bwiza kurusha iry'imashini zihagaze, kandi ubwiza bw'umusaruro bugenwa n'ibintu byinshi.

(4) Uburemere bwihariye: Uko uburemere bwihariye bungana, niko uburemere bungana. Uburemere ni bwinshi, muri rusange kubera ko ingano y'itsinda rya hydroxypropyl iri muri ryo ari nyinshi, kandi ingano y'itsinda rya hydroxypropyl ikaba nyinshi, bituma amazi aguma neza.

5. Ingano ya hydroxypropyl methylcellulose (HPMC) iri mu ifu ya putty ni iyihe?

Ingano ya HPMC ikoreshwa mu bikorwa iratandukanye bitewe n'ikirere gisanzwe, ubushyuhe, ubwiza bwa kalisiyumu y'ivu ryo mu gace runaka, formula y'ifu ya putty n' "ubwiza busabwa n'abakiriya". Muri rusange, 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; ingano ya putty muri Yunnan ni nto, muri rusange ni hagati ya kg 3 na kg 4, nibindi.

6. Ni ubuhe buryo bukwiye bwo gupima hydroxypropyl methylcellulose (HPMC)?

Ifu ya putty muri rusange ni yuan 100.000, kandi ibisabwa kuri sitrove ni byinshi, kandi yuan 150.000 birakenewe kugira ngo byorohe kuyikoresha. Byongeye kandi, akazi k'ingenzi ka HPMC ni ukubika amazi, hagakurikiraho gucumba. Mu ifu ya putty, igihe cyose amazi abika neza kandi ubukana buri hasi (70.000-80.000), birashoboka. Birumvikana ko uko ubukana bwiyongera, ni ko amazi abika neza. Iyo ubukana burenze 100.000, ubukana buzagira ingaruka ku bukana bw'amazi. Ntabwo bikiri byinshi.

7. Ni ibihe bimenyetso by'ingenzi by'ikoranabuhanga bya hydroxypropyl methylcellulose (HPMC)?

Ingano ya hydroxypropyl n'ubukana, abakoresha benshi bahangayikishijwe n'ibi bimenyetso bibiri. Abafite ubukana bwinshi bwa hydroxypropyl muri rusange bagira amazi meza. Ifite ubukana bwinshi ifata amazi neza, mu rugero runaka (atari rwose), naho ifite ubukana bwinshi ikoreshwa neza mu gusya sima.

8. Ni ibihe bikoresho by'ingenzi bya hydroxypropyl methylcellulose (HPMC)?

Ibikoresho by'ingenzi bya hydroxypropyl methylcellulose (HPMC): ipamba itunganyijwe, methyl chloride, propylene oxide, n'ibindi bikoresho fatizo, soda ya caustic, aside, toluene, isopropanol, nibindi.

9. Ni iyihe nshingano nyamukuru yo gukoresha HPMC mu ifu ya putty, kandi se bibaho mu buryo bwa shimi?

Mu ifu ya putty, HPMC igira inshingano eshatu zo gukurura, kubika amazi no kubaka. Gukomera: Selilulose ishobora gukurura kugira ngo ikomeze guhagarara neza no gukomeza gukurura, kandi irinde kugwa. Gukomera kw'amazi: gutuma ifu ya putty yumuka buhoro buhoro, kandi igafasha kalisiyumu y'ivu gukora neza iyo amazi akoze. Imiterere: Selilulose ifite ubushobozi bwo gusiga amavuta, bishobora gutuma ifu ya putty igira imiterere myiza. HPMC ntabwo igira uruhare mu bikorwa bya shimi, ahubwo igira uruhare rw'inyongera gusa. Kongera amazi ku ifu ya putty no kuyashyira ku rukuta ni imikorere ya shimi, kuko ibintu bishya bibaho. Iyo ukuye ifu ya putty ku rukuta ku rukuta, ukayisya ikameramo ifu, hanyuma ukongera kuyikoresha, ntabwo izakora kuko ibintu bishya (calcium carbonate) nabyo byakozwe. 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 iri mu mazi no mu mwuka Mu gihe cya CO2, kalisiyumu karubone irakorwa, mu gihe HPMC igumana amazi gusa, 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 itari ionic ni iki?

Mu magambo y’abantu basanzwe, ibintu bitari iyoni ni ibintu bidahinduka iyoni mu mazi. Iyonize yerekeza ku buryo electrolyte ivangwamo iyoni zifite umuriro ushobora kugenda mu kintu runaka (nk'amazi, alcohol). Urugero, sodium chloride (NaCl), umunyu turya buri munsi, irashonga mu mazi igahinduka iyoni kugira ngo ikore iyoni za sodium zigenda zimuka (Na+) zifite umuriro mwiza na iyoni za chloride (Cl) zifite umuriro mubi. Ni ukuvuga ko iyo HPMC ishyizwe mu mazi, ntabwo ihinduka iyoni zifite umuriro, ahubwo ibaho mu buryo bwa molekile.

11. Ni iyihe sano iri hagati y’ubushyuhe bwa gel bwa hydroxypropyl methylcellulose?

Ubushyuhe bwa gel ya HPMC bufitanye isano n'ingano yayo ya methoxy, uko ingano ya methoxy iba nke ↓, niko ubushyuhe bwa gel buba bwinshi ↑.

12. Ese hari isano iri hagati y'igitonyanga cy'ifu ya putty na HPMC?

Kubura ifu y'ifu ya putty ahanini bifitanye isano n'ubwiza bwa calcium y'ivu, kandi ntaho bihuriye na HPMC. Ingano nke ya calcium y'imvi hamwe n'ikigereranyo kidakwiye cya CaO na Ca(OH)2 muri calcium y'imvi bizatera kubura ifu. Niba bifitanye isano na HPMC, niba HPMC ifite amazi make, nayo izatera kubura ifu. Ku mpamvu zihariye, nyamuneka reba ikibazo cya 9.

13. Ni irihe tandukaniro riri hagati y’ubwoko bwa hydroxypropyl methylcellulose bushobora gushonga mu buryo bushyushye n’ubwoko bwa hydroxypropyl methylcellulose bushobora gushonga mu gihe cyo kuyikora?

Ubwoko bwa HPMC bukoresha amazi akonje buvurwa na glyoxal ku buso, kandi bukwirakwira vuba mu mazi akonje, ariko ntabwo bushonga mu by'ukuri. Bushonga gusa iyo ubushyuhe bwiyongeye. Ubwoko bwa hot melt ntibuvurwa na glyoxal ku buso. Iyo ingano ya glyoxal ari nini, ubushyuhe buziyongera buhoro buhoro, kandi niba ingano ari nto, ibinyuranye n'ibyo bizaba.

14. Impumuro ya hydroxypropyl methylcellulose (HPMC) ni iyihe?

HPMC ikorwa n'uburyo bwo gushonga ikoresha toluene na isopropanol nk'imiti isukura. Iyo gukaraba bitameze neza cyane, hazabaho impumuro isigaye.

15. Ni gute wahitamo hydroxypropyl methylcellulose (HPMC) ikwiriye mu bikorwa bitandukanye?

Gukoresha ifu ya puti: ibisabwa ni bike, ubukana ni 100.000, birahagije, icy'ingenzi ni ugukomeza amazi neza. Gukoresha sima: ibisabwa byinshi, ubukana bwinshi, 150.000 ni byiza kurushaho. Gukoresha kole: ibikoresho byihuse bifite ubukana bwinshi birakenewe.

16. Ni irihe zina rya hydroxypropyl methylcellulose?

Hydroxypropyl methyl cellulose, Icyongereza: Hydroxypropyl Methyl Cellulose Incamake: HPMC cyangwa MHPC Izina risanzwe: hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.

17. Gukoresha HPMC mu ifu ya putty, ni iyihe mpamvu ituma habaho utubumbe mu ifu ya putty?

Mu ifu ya putty, HPMC igira inshingano eshatu zo gukurura, kubika amazi no kubaka. Ntukifatanye mu bikorwa ibyo ari byo byose. Impamvu zitera uduheri: 1. Shyira amazi menshi. 2. Igice cyo hasi nticyumye, gusa urundi rwego hejuru, kandi biroroshye kugitera ifuro.

18. Ni iyihe formula y'ifu ya putty ku nkuta z'imbere n'inyuma?

Ifu y'imbere mu gikoresho cyo mu rukuta: kalisiyumu nyinshi 800KG, kalisiyumu y'ivu 150KG (imvange y'ibinyampeke, icyatsi kibisi, ubutaka bwa Pengrun, aside citric, polyacrylamide, nibindi bishobora kongerwamo uko bikwiye)
Ifu y'isukari yo ku rukuta yo hanze: sima 350KG kalisiyumu ikomeye 500KG umucanga wa quartz 150KG ifu ya latex 8-12KG eteri ya selulose 3KG eteri ya sitashi 0.5KG fibre y'ibiti 2KG

19. Ni irihe tandukaniro riri hagati ya HPMC na MC?

MC ni selulosi ya methyl, ikorwa muri eteri ya selulosi binyuze mu gutunganya ipamba itunganyijwe na alkali, hakoreshejwe methane chloride nk'igikoresho cyo gukwirakwiza eteri, no kunyura mu buryo butandukanye. Muri rusange, urwego rwo gusimbuza ni 1.6 ~ 2.0, kandi gushonga nabyo biratandukanye iyo ugereranyije n'urwego rwo gusimbuza. Ni iya eteri ya selulosi itari ioni.
(1) Uburyo methyl cellulose igumana amazi biterwa n'ingano yayo, ubukana, ubukana bw'uduce duto n'umuvuduko wo gushonga. Muri rusange, niba ingano yo kongeramo ari nini, ubukana ni buto, kandi ubukana ni bwinshi, umuvuduko wo gufata amazi ni munini. Muri byo, ingano yo kongeramo igira ingaruka nini ku muvuduko wo gufata amazi, kandi urwego rw'ubukana ntabwo rujyanye neza n'urwego rw'umuvuduko wo gufata amazi. Umuvuduko wo gushonga uterwa ahanini n'urugero rw'impinduka z'ubuso bw'uduce twa cellulose n'ubukana bw'uduce duto. Muri ether za cellulose zavuzwe haruguru, methyl cellulose na hydroxypropyl methyl cellulose bifite umuvuduko wo gufata amazi mwinshi.
(2) Methylcellulose irashonga mu mazi akonje, kandi bizagorana kuyishonga mu mazi ashyushye. Umuti wayo w'amazi uhoraho cyane mu rugero rwa pH = 3 ~ 12. Ikorana neza na sitashi, guar gum, nibindi nibindi byinshi bya surfactants. Iyo ubushyuhe bugeze ku bushyuhe bwa gelation, gelation iba ihari.
(3) Impinduka mu bushyuhe zigira ingaruka zikomeye ku muvuduko wo kubika amazi muri selulosi ya methyl. Muri rusange, uko ubushyuhe burushaho kuba bwinshi, ni ko kubika amazi birushaho kuba bibi. Iyo ubushyuhe bwa selulosi burenze dogere selisiyusi 40, kubika amazi muri selulosi ya methyl bizagabanuka cyane, bikagira ingaruka zikomeye ku bwubatsi bwa selulosi.
(4) Selulosi ya Methyl igira ingaruka zikomeye ku iyubakwa n'ifatana rya sima. "Gufatana" hano bivuga imbaraga zo gufatana hagati y'igikoresho cy'umukozi n'igice cy'urukuta, ni ukuvuga imbaraga zo gufatana za sima. Gufatana ni byinshi, imbaraga zo gufatana za sima ni nini, kandi imbaraga zisabwa n'abakozi mu ikoreshwa nazo ni nyinshi, kandi imikorere y'ifatana rya sima ni mibi. Gufatana kwa selulosi ya Methyl kuri ku rwego rwo hagati mu bicuruzwa bya eteri ya selulosi.

HPMC ni hydroxypropyl methylcellulose, ikaba ari eteri ivanze na cellulose itari ionic ikozwe mu ipamba itunganyijwe nyuma yo kuyitunganya, ikoresheje propylene oxide na methyl chloride nk'ibintu bihindura ether, ndetse binyuze mu buryo butandukanye. Igipimo cyo kuyihindura muri rusange ni 1.2 ~ 2.0. Imiterere yayo iratandukanye bitewe n'ibipimo bitandukanye by'ibikubiye muri methoxyl n'ibikubiye muri hydroxypropyl.

(1) Hydroxypropyl methylcellulose ishongeshwa byoroshye mu mazi akonje, kandi izahura n'ingorane mu gushonga mu mazi ashyushye. Ariko ubushyuhe bwayo bwo gushonga mu mazi ashyushye buri hejuru cyane ugereranyije n'ubwa methyl cellulose. Gushonga mu mazi akonje nabyo birarushaho kwiyongera ugereranije na methyl cellulose.
(2) Uburemere bwa hydroxypropyl methylcellulose bufitanye isano n'uburemere bwayo bwa molekile, kandi uko uburemere bwa molekile burushaho kuba bwinshi, niko uburemere burushaho kuba bwinshi. Ubushyuhe nabwo bugira ingaruka ku buremere bwayo, uko ubushyuhe bwiyongera, uburemere bugabanuka. Ariko, uburemere bwayo bwinshi bugira ingaruka ku bushyuhe buke ugereranyije na methyl cellulose. Umuti wayo uhoraho iyo ubitswe ku bushyuhe bw'icyumba.
(3) Hydroxypropyl methylcellulose irahamye kuri aside na alkali, kandi umuti wayo w’amazi urahamye cyane mu rugero rwa pH = 2 ~ 12. Soda ya Caustic na lime amazi ntacyo bigira ku mikorere yayo, ariko alkali ishobora kwihutisha gushonga kwayo no kongera ubukana bwayo. Hydroxypropyl methylcellulose irahamye kuri umunyu usanzwe, ariko iyo ubwinshi bw’umunyu buri hejuru, ubukana bwa hydroxypropyl methylcellulose bukunda kwiyongera.
(4) Uburyo hydroxypropyl methylcellulose igumana amazi biterwa n'ingano yayo, ubukana bwayo, n'ibindi, kandi igipimo cyo kubika amazi munsi y'ingano imwe y'inyongera kiri hejuru y'icya methyl cellulose.
(5) Hydroxypropyl methylcellulose ishobora kuvangwa n'ibinyabutabire bya polymer bishongeshwa n'amazi kugira ngo bikore umuti umwe kandi ufite ubukana bwinshi. Nka polyvinyl alcohol, starch ether, vegetable gum, nibindi.
(6) Uburyo hydroxypropyl methylcellulose ifatana n'imiterere ya mortier buruta ubw'uburyo methylcellulose ifatana.
(7) Hydroxypropyl methylcellulose ifite ubudahangarwa bwiza bwa enzymes kurusha methylcellulose, kandi umuti wayo ntushobora kwangirika cyane na enzymes kurusha methylcellulose.

20. Ni iki kigomba kwitabwaho mu ishyirwa mu bikorwa nyaryo ry'isano iri hagati y'ubushyuhe n'ubukonje bwa HPMC?

Ubushyuhe bwa HPMC bungana mu buryo bunyuranye n'ubushyuhe, ni ukuvuga ko ubushyuhe bwiyongera uko ubushyuhe bugabanuka. Ubushyuhe bw'ikintu dukunze kuvugaho buvuga ku bisubizo by'isuzuma ryacyo rya 2% by'amazi ku bushyuhe bwa dogere selisiyusi 20.

Mu bikorwa bifatika, ni ngombwa kumenya ko mu turere dufite itandukaniro rinini ry'ubushyuhe hagati y'impeshyi n'itumba, ni byiza gukoresha ubushyuhe buke mu gihe cy'itumba, ibyo bikaba byoroshye mu bwubatsi. Bitabaye ibyo, iyo ubushyuhe buri hasi, ubushyuhe bwa selulose buziyongera, kandi intoki zigakomera mu gihe cyo gukurura.

Uburemere buri hagati: 75000-100000 ikoreshwa cyane cyane mu guteka puti

Impamvu: amazi agumana neza

Ubushyuhe bwinshi: 150000-200000 Ikoreshwa cyane cyane mu gushonga ubushyuhe bwa polystyrene particles mortar na vitrified microbead thermal insulation mortar.

Impamvu: Ubushyuhe buri hejuru, sima ntabwo byoroshye kugwa, kugwa, kandi imiterere yayo irarushaho kuba myiza.

Ariko muri rusange, uko ubushyuhe bwinshi burushaho kwiyongera, niko amazi agumana neza. Kubwibyo, ukurikije ikiguzi, inganda nyinshi zikora ifu yumye zisimbuza cellulose iri hagati n'iyoroheje (20000-40000) hamwe na cellulose iri hagati n'iyoroheje (20000-40000) kugira ngo bigabanye ingano y'inyongera.