Ingaruka za Hydroxypropyl Methyl Cellulose Ether kumiterere yimashini yatewe sima Mortar

Cellulose ether ninyongera yingenzi mumashini yaturika. Hakozwe ubushakashatsi ku ngaruka enye zitandukanye za hydroxypropyl methylcellulose (HPMC) ku gufata amazi, ubwinshi, ibirimo ikirere, imiterere yubukanishi no gukwirakwiza ingano ya pine ya minisiteri yaturitswe. Ubushakashatsi bwerekanye ko: HPMC ishobora kunoza cyane imikorere yo gufata amazi ya minisiteri, kandi igipimo cyo gufata amazi gishobora kurenga 90% mugihe umubare wa HPMC ari 0.15%. Ikigaragara cyane; ikirere cya minisiteri yiyongera hamwe no kwiyongera kwa HPMC: HPMC biragaragara ko izagabanya imiterere yubukorikori bwa sima ya sima, ariko igipimo cyikubye cya minisiteri kiziyongera; ingano ya pore ya minisiteri iziyongera cyane nyuma yo kongeramo HPMC, Umubare wibyobo byangiza nibyobo byinshi byangiza byiyongereye cyane.

Amagambo y'ingenzi: minisiteri; hydroxypropyl methylcellulose ether; kubika amazi; ingano ya pore

0. Ijambo ryibanze

Mu myaka yashize, hamwe n’iterambere rikomeje gutera imbere mu nganda no guteza imbere ikoranabuhanga, binyuze mu kwinjiza no kunoza imashini zitera za minisiteri z’amahanga, tekinoroji yo gutera imashini no guhomesha yateye imbere cyane mu gihugu cyacu. Imashini itera imiti itandukanye na minisiteri isanzwe, isaba imikorere yo gufata amazi menshi, amazi meza hamwe nibikorwa bimwe na bimwe byo kurwanya kugabanuka. Ubusanzwe, selile ya selile yongerwa kuri minisiteri, muri yo hydroxypropyl methylcellulose yo mu kibaya cya ether (HPMC) niyo ikoreshwa cyane. Ibikorwa byingenzi bya HPMC muri minisiteri ni: ubushobozi bwiza bwo gufata amazi, kubyimba no kwifata no guhindura imvugo. Ariko, amakosa ya HPMC ntashobora kwirengagizwa. HPMC ifite ingaruka zo guhumeka ikirere, izatera inenge nyinshi imbere kandi igabanye cyane imiterere ya minisiteri. Uru rupapuro rwiga ku ruhare rwa HPMC ku kigero cyo gufata amazi, ubucucike, ibirimo ikirere hamwe n’imiterere ya minisiteri ya minisiteri ya macroscopique, ikaniga ku ruhare rwa HPMC ku miterere y’imyunyu ngugu ya microscopique.

1. Ikizamini

1.1 Ibikoresho bibisi

Isima: ubucuruzi buraboneka P.·O42.5 sima, imbaraga zayo 28d zo guhuza no kwikuramo ni 6.9 na 48.2 MPa; umucanga: Chengde umusenyi mwiza wumugezi, mesh 40-100; selile ether: alcool hydroxypropyl ikorwa nisosiyete muri Hebei Methyl selulose ether, ifu yera, viscosity nominal 40, 100, 150, 200 Pa·S: Amazi: amazi meza.

1.2 Uburyo bwo kugerageza

Dukurikije JGJ / T 105-2011 “Amabwiriza y’ubwubatsi bwo gusasa no guhinga imashini”, ubuvanganzo bwa minisiteri ni 80 ~ 120mm, kandi igipimo cyo gufata amazi kirenga 90%. Muri iki kizamini, igipimo cya lime-umucanga gishyirwa kuri 1: 5, guhuza bigenzurwa kuri (93)±2) mm, na ether ya selile yivanze hanze, kandi dosiye yayo ibarwa ukurikije misa ya sima. Ibintu by'ibanze bya minisiteri nk'ubucucike butose, ibirimo ikirere, igipimo cyo gufata amazi, hamwe no guhora bigeragezwa hifashishijwe JGJ 70-2009 “Uburyo bwo Kwipimisha ku Byibanze Byubatswe na Mortar”, kandi ikirere kirageragezwa kandi kibarwa ukurikije uburyo bw'ubucucike. Gutegura, guhindagurika no gukomeretsa imbaraga zingero zakozwe hifashishijwe GB / T 17671-1999 “Uburyo bwo Kugerageza Imbaraga Zumusenyi Mortar Sand (Uburyo bwa ISO)”. Ingano ya pore yageragejwe na mercure porosimetry. Icyitegererezo cya porosimeteri ya mercure yari AUTOPORE 9500, naho igipimo cyo gupima cyari 5.5 nm kugeza 360μm. Hakozwe ibizamini 4 byose. 0, 0.1%, 0.2%, 0.3% (imibare ni A, B, C, D).

2. Ibisubizo nisesengura

2.1 Ingaruka za HPMC ku gipimo cyo gufata amazi ya sima ya sima

Kubika amazi bivuga ubushobozi bwa minisiteri yo gufata amazi. Muri mashini yatewe na minisiteri, kongeramo selile ya selile irashobora kubungabunga neza ubushuhe, kugabanya umuvuduko wamaraso, kandi byujuje ibisabwa kugirango hydratiya ihagije yibikoresho bishingiye kuri sima.

Uhereye ku ngaruka za HPMC ku kigero cyo gufata amazi ya minisiteri, urashobora kubona ko hamwe no kwiyongera kwa HPMC, igipimo cyo gufata amazi ya minisiteri cyiyongera buhoro buhoro. Imirongo ya selile ya selile ifite viscosities ya 100, 150 na 200 Pa·s ni bimwe. Iyo ibirimo ari 0,05% kugeza 0.15%, igipimo cyo gufata amazi cyiyongera kumurongo. Iyo ibirimo ari 0.15%, igipimo cyo gufata amazi kirenze 93%.．Nyuma ya 20%, kwiyongera kwamazi yo gufata amazi biba meza, byerekana ko umubare wa HPMC uri hafi yo kwiyuzuzamo. Ingaruka yo kugabanuka kumubare wa HPMC hamwe nubwiza bwa 40 Pa·s ku gipimo cyo gufata amazi ni hafi umurongo ugororotse. Iyo umubare urenze 0.15%, igipimo cyo gufata amazi ya minisiteri kiri hasi cyane ugereranije nubundi bwoko butatu bwa HPMC hamwe nubwinshi buke. Muri rusange abantu bemeza ko uburyo bwo gufata amazi ya selulose ether ari: itsinda rya hydroxyl kuri molekile ya selile ya selile na atome ya ogisijeni ku muyoboro wa ether izahuza na molekile y’amazi kugira ngo ihuze hydrogene, bityo amazi yubusa ahinduka amazi aboshye. , bityo ukina ingaruka nziza yo gufata amazi; Bizera kandi ko itandukaniro riri hagati ya molekile y’amazi n’iminyururu ya selile ya selile ituma molekile z’amazi zinjira imbere mu munyururu wa selulose ether macromolecular kandi zigakoreshwa n’ingufu zikomeye, bityo bigatuma amazi agumana amazi ya sima. Kubika amazi meza birashobora gutuma minisiteri imwe, ntibyoroshye gutandukanya, kandi ikabona imikorere myiza yo kuvanga, mugihe kugabanya imashini no kongera ubuzima bwimashini itera.

2.2 Ingaruka za HPMC ku bucucike no mu kirere cya sima ya sima

Uhereye ku ngaruka za viscosities zitandukanye hamwe na dosiye ya HPMC ku bucucike bwa minisiteri, urashobora kubona ko iyo dosiye ya HPMC ari 0-0.20%, ubucucike bwa minisiteri bugabanuka cyane hamwe no kwiyongera kwa dosiye ya HPMC, kuva kuri 2050 kg / m³ kugeza kuri 1650kg / m³ , yagabanutseho hafi 20%; nyuma yibirimo bya HPMC birenze 0,20%, kugabanuka kwubucucike bikunda kuba byiza. Ugereranije ubwoko bune bwa HPMC hamwe nubucucike butandukanye, urashobora kubona ko uko ubukonje buri hejuru, nubucucike bwa minisiteri; ubucucike bwimyenda ya minisiteri hamwe nubwiza buvanze bwa 150 na 200 Pa s HPMC byuzuzanya, byerekana ko uko ubwiza bwa HPMC bukomeje kwiyongera, ubucucike bwa minisiteri ntibukigabanuka.

Uhereye ku ngaruka za viscosities zitandukanye hamwe na dosiye ya HPMC ku kirere cya minisiteri, urashobora kubona ko ihinduka ryibintu byo mu kirere bya minisiteri bitandukanye n’ubucucike bwa minisiteri. Ingano yumwuka hafi ya izamuka kumurongo ugororotse; iyo HPMC irenze 0,20%, ikirere kirimo guhinduka cyane, byerekana ko ingaruka ziterwa numwuka wa minisiteri yegereye kwiyuzuzamo. Ingaruka zo guhumeka umwuka wa HPMC hamwe nubwiza bwa 150 na 200 Pa·s iruta iya HPMC ifite viscosity ya 40 na 100 Pa·s.

Ingaruka yinjira mu kirere ya selile ether igenwa cyane cyane nimiterere yayo. Ether ya selile ifite amatsinda yombi ya hydrophilique (hydroxyl, ether groupe) hamwe na hydrophobique (matsinda ya methyl, impeta ya glucose), kandi ni surfactant. , ifite ibikorwa byubuso, bityo bikagira ingaruka zo guhumeka ikirere. Ku ruhande rumwe, gaze yatangijwe irashobora gukora nkumupira utwara minisiteri, kunoza imikorere yimikorere ya minisiteri, kongera amajwi, no kongera umusaruro, ugirira akamaro uwabikoze. Ariko kurundi ruhande, ingaruka zo guhumeka ikirere zongera umwuka mubi wa minisiteri hamwe na porotike nyuma yo gukomera, bikaviramo kwiyongera kwimyanda yangiza kandi bikagabanya cyane imiterere yubukanishi. Nubwo HPMC ifite ingaruka zimwe zo kwinjiza ikirere, ntishobora gusimbuza umukozi winjiza ikirere. Mubyongeyeho, mugihe HPMC hamwe numukozi winjiza ikirere bikoreshwa mugihe kimwe, umukozi winjiza ikirere arashobora kunanirwa.

2.3 Ingaruka za HPMC kumiterere yubukanishi bwa sima

Uhereye kuri 28d flexural strength na 28d compressive strength, birashobora kugaragara ko mugihe ingano ya HPMC ari 0,05% gusa, imbaraga za flexural ya minisiteri zigabanuka cyane, ibyo bikaba biri munsi ya 25% ugereranije nubushakashatsi bwambaye ubusa butagira HPMC, na imbaraga zo kwikuramo zishobora gusa Kugera kuri 65% byurugero rwuzuye. 80%. Iyo ibiri muri HPMC birengeje 0,20%, urwego rwo kugabanuka kwingufu zoroshye nimbaraga zo kwikuramo za minisiteri ntabwo bigaragara. Ubukonje bwa HPMC nta ngaruka nini bugira kuri mikoranike ya minisiteri. HPMC itangiza uduce twinshi twinshi two mu kirere, kandi ingaruka zo guhumeka ikirere kuri minisiteri zongera ububobere bwimbere hamwe nuduce twangiza bya minisiteri, bigatuma kugabanuka gukomeye kwingufu zo gukomeretsa n'imbaraga zoroshye. Indi mpamvu ituma imbaraga za minisiteri zigabanuka ningaruka zo gufata amazi ya selile ya selile, ituma amazi muri minisiteri ikomera, kandi igipimo kinini cyo guhuza amazi kiganisha ku kugabanuka kwimbaraga zo guhagarika ikizamini. Kububiko bwa mashini yubaka, nubwo ether ya selile irashobora kongera cyane igipimo cyo gufata amazi ya minisiteri no kunoza imikorere yayo, niba umubare ari munini cyane, bizagira ingaruka zikomeye kumiterere ya minisiteri, bityo umubano hagati yabyo ugomba gupimwa muburyo bukwiye.

Uhereye ku kigero cyiminsi 28 yikubye, birashobora kugaragara ko hamwe niyongera ryibirimo bya HPMC, igipimo rusange cyikubye cya minisiteri cyerekana inzira igenda yiyongera, mubyukuri bikaba isano. Ibi ni ukubera ko ether yongeyeho selile itangiza umubare munini wumwuka mwinshi, bigatera inenge nyinshi imbere ya minisiteri, bigatuma igabanuka rikabije ryimbaraga zo kwikuramo za minisiteri, kandi nubwo imbaraga za flexural nazo zigabanuka kurwego runaka; ariko selulose ether irashobora kunoza imiterere ya minisiteri no kurwanya imbaraga Zikubye ni nziza, bigatuma igabanuka ryihuta. Urebye muri rusange, ingaruka zahujwe zombi ibisubizo byiyongera mubipimo byikubye.

2.4 Ingaruka za HPMC ku bunini bwa pine

Ingano ya pore yo gukwirakwiza imirongo ine yintangarugero A, B, C na D yapimwe na mercure yinjira muri porosimetrie.

Ukurikije ibipimo byo gukwirakwiza ingano ya pore, ingano yo gukwirakwiza ibipimo bya pore hamwe n’ibipimo bitandukanye by’ibarurishamibare byerekana urugero rwa AD, HPMC igira uruhare runini ku miterere y’imyobo ya sima:

(1) Nyuma yo kongeramo HPMC, ingano ya pore ya sima yiyongera cyane. Ku bunini bwa pore yo gukwirakwiza umurongo, ubuso bwishusho bwimuka iburyo, kandi agaciro ka pore gahuye nagaciro keza kaba nini. Na none uhereye ku mibare y'ibarurishamibare ry'ubunini bwa pore hamwe n'ubunini bwa pore hagati y'ibisubizo by'ibipimo bitandukanye by'ibarurishamibare, birashobora kugaragara ko ingano ya pore yo hagati ya sima ya sima nyuma yo kongeramo HPMC nini cyane kuruta iy'icyitegererezo cyuzuye, kandi murugero hamwe na 0.3% ya dosiye Agaciro aperture ni ordre 2 yubunini burenze ubw'icyitegererezo cyuzuye.

(2) Wu Zhongwei n'abandi. yagabanije imyenge muri beto muburyo bune, butangiza imyenge (≤20 nm), imyenge mike yangiza (20-100 nm), imyenge yangiza (100-200 nm) hamwe na pore nyinshi zangiza ((≥200 nm). 200 nm). Uhereye ku bunini bwa pore ikwirakwiza imibare y'ibarurishamibare hamwe n'ibisubizo by'ibizamini by'ibipimo bitandukanye by'imibare, urashobora kubona ko umubare w'ibyorezo bitagira ingaruka cyangwa imyanda yangiza bitagabanuka ku buryo bugaragara, kandi umubare w'ibyorezo byangiza cyangwa imyanda yangiza byiyongera nyuma yo kongeramo HPMC. Ibyorezo bitagira ingaruka cyangwa bike byangiza byintangarugero bidafite HPMC bigera kuri 49.4%, kandi imyenge itagira ingaruka cyangwa nkeya yangiza iragabanuka cyane nyuma yo kongeramo HPMC. Dufashe urugero rwa 0.1% nkurugero, imyenge itagira ingaruka cyangwa nkeya yangiza igabanukaho 45%. , umubare wibyorezo byangiza birenze 10μm yiyongereyeho inshuro zigera kuri 9.

3) Diameter ya pore ya median, impuzandengo ya pore ya diametre, ingano ya pore nubuso bwihariye ntibikurikiza amategeko akomeye cyane hamwe no kwiyongera kwa HPMC, bishobora kuba bifitanye isano no gukwirakwiza kwinshi kwicyitegererezo mugupima inshinge za mercure. Ariko muri rusange, diameter ya pore ya median, impuzandengo ya pore ya diametre hamwe nubunini bwihariye bwa pore yintangarugero ivanze na HPMC ikunda kwiyongera ugereranije nicyitegererezo cyambaye ubusa, mugihe ubuso bwihariye bugabanuka.

3. Umwanzuro

(1) Igipimo cyo gufata amazi ya minisiteri cyiyongera hamwe no kwiyongera kwa HPMC. Imirongo ya selulose ether ifite viscosities ya 100, 150 na 200 Pa·S ahanini ni kimwe, kandi igipimo cyo gufata amazi kirenze 93% mugihe ibirimo ari 0.15%. Iyo ibikubiye muri 40 Pa·s selulose ether irenze 0.15%, igipimo cyo gufata amazi kiri munsi yubwoko butatu bwubwiza HPMC.

(2) Ubucucike bwa minisiteri bugabanuka buhoro buhoro hamwe no kwiyongera kwa HPMC, naho ibirimo ni 0.05%. Kugabanuka k'ubucucike nibyo bigaragara cyane kuri 0,20%, hafi 20%; iyo ibirimo birenze 0,20%, ubucucike burahinduka; ikirere cya minisiteri yiyongera hamwe no kwiyongera kwa HPMC.

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. Icyitegererezo kirimo 0.1% HPMC yagabanije hafi 45% ugereranije nicyitegererezo cyambaye ubusa nta byangiritse cyangwa byangiza, numubare wibyorezo byangiza birenze 10μm yiyongereyeho inshuro 9.