Cellulose ethers kurukuta

Ether ya selile (hydroxypropyl methylcellulose, HPMC muri make) ni ikintu gisanzwe cyo kubaka urukuta rw'imbere kandi rufite uruhare runini muri putty. HPMC ifite viscosities zitandukanye igira uruhare runini mumikorere ya putty. Uru rupapuro rwiga kuri gahunda n'ingaruka z'imiterere itandukanye ya HPMC hamwe na dosiye yayo ku mikorere ya putty, ikanagena ububobere bwiza na dosiye ya HPMC muri putty.

Amagambo y'ingenzi: selile ether, viscosity, putty, imikorere

0.Ijambo ry'ibanze

Hamwe niterambere ryumuryango, abantu barushaho gushishikarira kubaho neza murugo. Mugihe cyo gushushanya, ahantu hanini h'urukuta hagomba gusibanganywa no kuringanizwa na putty kugirango yuzuze umwobo. Putty nigikoresho cyingenzi cyo gushyigikira imitako. Kuvura nabi gushira bizatera ibibazo nko guturika no gukuramo irangi. Gukoresha imyanda mvaruganda namabuye y'agaciro afite imyanda itunganya ikirere kugirango wige inyubako nshya yo kurengera ibidukikije byahindutse ingingo ishyushye. Hydroxypropyl methyl selulose (Hydroxypropyl methyl selulose, amagambo ahinnye yicyongereza ni HPMC) nigikoresho cya polymer gishonga amazi p, nkibisanzwe bikoreshwa cyane mubikorwa byo kubaka, bifite imikorere myiza yo gufata amazi, byongera igihe cyakazi kandi bitezimbere imikorere yubwubatsi, Kunoza imikorere yakazi . Hashingiwe ku bushakashatsi bwibanze bwakozwe, iyi mpapuro yateguye ubwoko bwurukuta rwimbere rwo kubungabunga ibidukikije hamwe na diatomite nkuwuzuza ibikorwa byingenzi, kandi yiga kuri gahunda ingaruka ziterwa nubwiza butandukanye HPMC nubunini bwa putty kumazi ya putty, imbaraga zo guhuza, intangiriro gukama kumeneka, gusya Ingaruka zo gukora, gukora hamwe nigihe cyumye.

1. Igice cyubushakashatsi

1.1 Gerageza ibikoresho fatizo nibikoresho

1.1.1

4 W.-HPMC, 10 W.-HPMC, na 20 W.-HPMC selulose ether na polyvinyl inzoga ya rubber ikoreshwa mu kizamini yatanzwe na Kima Chemical Co., Ltd; diatomite yatanzwe na Jilin Diatomite Company; calcium iremereye hamwe nifu ya talcum Itangwa na Shenyang SF Itsinda ryinganda; 32.5 R sima yera ya Portland yatanzwe na Sosiyete Yatai Cement.

1.1.2 Ibikoresho byo gupima

Isuzuma ryamazi ya sima NLD-3; kwuma kwambere kwipimisha anti-cracking BGD 597; ubwenge bwimbaraga zipimisha HC-6000 C; kuvanga no kumusenyi bikwirakwiza imashini igamije byinshi BGD 750.

1.2 Uburyo bw'igerageza

Inzira yibanze yikizamini, ni ukuvuga, ibiri muri sima, calcium iremereye, diatomite, ifu ya talcum na alcool ya polyvinyl ni 40%, 20%, 30%, 6% na 4% byimbaraga zose zifu yifu. . Ingano ya HPMC ifite viscosities eshatu zitandukanye ni 1‰, 2‰, 3‰, 4‰na 5‰bikurikiranye. Kugirango byoroherezwe kugereranya, ubunini bwubwubatsi bwa putty imwe-imwe bugenzurwa kuri mm 2, naho kwaguka kugenzurwa kuri mm 170 kugeza kuri mm 180. Ibipimo byerekana ni ukumenya kwumisha kwambere, imbaraga zubusabane, kurwanya amazi, umutungo wumucanga, gukora nigihe cyumwanya.

2. Ibisubizo by'ibizamini no kuganira

2.1 Ingaruka za viscosities zitandukanye za HPMC hamwe na dosiye yayo kumubano wububiko bwa putty

Uhereye kubisubizo byikizamini hamwe nimbaraga zingirakamaro zingana za viscosities zitandukanye za HPMC nibirimo kuri putty's inkomezi zingirakamaro, birashobora kugaragara ko gushira's imbaraga zingirakamaro ziyongera mbere hanyuma zigabanuka hamwe no kwiyongera kwa HPMC. Imbaraga zingirakamaro za putty zifite uruhare runini, ziyongera kuva 0.39 MPa mugihe ibirimo ari 1‰kugeza 0.48 MPa mugihe ibirimo ari 3‰. Ni ukubera ko iyo HPMC ikwirakwijwe mumazi, ether ya selulose mumazi irabyimba vuba kandi igahuzwa nifu ya reberi, igahuza hamwe, hamwe nigicuruzwa cya hydrata cima kizengurutswe niyi firime ya polymer kugirango ikore icyiciro cya matrix, ikora. umurunga wa putty Imbaraga ziriyongera, ariko iyo ingano ya HPMC ari nini cyane cyangwa ibishishwa biri hejuru cyane cyangwa biri hasi cyane, firime ya polymer yakozwe hagati ya HPMC nuduce twa sima igira kashe, igabanya imbaraga zubusabane bwa putty.

2.2 Ingaruka zijimye zitandukanye za HPMC nibiyirimo mugihe cyumye cya putty

Irashobora kugaragara uhereye kubisubizo by'ibizamini bya viscosities zitandukanye za HPMC hamwe na dosiye yayo mugihe cyo kumisha hejuru yigihe cyo gushira hamwe nigihe cyo kumisha hejuru. Nubunini bwa HPMC nubunini bwa dosiye, nigihe kinini cyo kumisha hejuru ya putty. / T298-2010), hejuru yumwanya wurukuta rwimbere ntushobora kurenza min 120, nigihe ibirimo 10 W.-HPMC irenga 4‰, n'ibiri muri 20 W.-HPMC irenga 3‰, hejuru yumwanya wigihe cya putty urenze ibisabwa. Ni ukubera ko HPMC ifite ingaruka nziza yo gufata amazi. Iyo HPMC ivanze muri putty, molekile zamazi hamwe nitsinda rya hydrophilique kumiterere ya molekile ya HPMC irashobora guhuza hamwe kugirango itangire utubuto duto. Ibibyimba byinshi bigira ingaruka "roller", bigira akamaro mugushyiramo ibishishwa Nyuma yo gushira gukomera, imyuka yo mu kirere iracyariho kugirango ibe imyenge yigenga, ibuza amazi guhumeka vuba kandi ikongerera igihe cyo kumisha hejuru ya putty. Iyo kandi HPMC ivanze muri putty, ibicuruzwa biva mumazi nka calcium hydroxide ya calcium na CSH gel muri sima byamamajwe na molekile ya HPMC, byongera ubwiza bwumuti wa pore, bikagabanya kugenda kwa ion mugisubizo cya pore, kandi bikadindira. inzira ya sima.

2.3 Ingaruka za viscosities zitandukanye za HPMC hamwe na dosiye yayo kubindi bintu bya putty

Irashobora kugaragara uhereye kubisubizo byikizamini cyingaruka zinyuranye za HPMC nubunini bwa putty kubindi bintu bya putty. Kwiyongera kwa HPMC hamwe nubukonje butandukanye bituma kwangirika kwambere kwangirika, kurwanya amazi no gukora umusenyi wa putty byose bisanzwe, ariko hamwe no kwiyongera kwa HPMC, imikorere mibi yubwubatsi. Bitewe no kwiyongera kwa HPMC, ibintu byinshi bizongera umurongo wa putty, bizagorana gukuraho putty no kwangiza imikorere yubwubatsi.

3. Umwanzuro

.‰.

. Iyo ibikubiye muri 10 W-HPMC birenze 4‰, n'ibiri muri 20 W-HPMC birenga 3‰, hejuru-yumisha umwanya wa putty ni ndende cyane kandi ntabwo yujuje ubuziranenge. Saba.

. Urebye neza, imikorere ya putty ivanze na 3‰10 W-HPMC nibyiza.