Hamwe n’iterambere rikomeje gutera imbere mu nganda no guteza imbere ikoranabuhanga, binyuze mu kwinjiza no kunoza imashini zitera za minisiteri z’amahanga, ikoranabuhanga ryo gutera imashini no guhomesha iterambere ryateye imbere cyane mu gihugu cyanjye mu myaka yashize. Imashini itera imiti itandukanye na minisiteri isanzwe, isaba imikorere yo gufata amazi menshi, amazi meza hamwe nibikorwa bimwe na bimwe byo kurwanya kugabanuka. Mubisanzwe, hydroxypropyl methylcellulose yongewe kuri minisiteri, muri selile Ether (HPMC) niyo ikoreshwa cyane. Ibikorwa byingenzi bya hydroxypropyl methylcellulose HPMC muri minisiteri ni: kubyimba no kwifata, guhindura imvugo, hamwe nubushobozi bwiza bwo gufata amazi. Ariko, amakosa ya HPMC ntashobora kwirengagizwa. HPMC ifite ingaruka zo guhumeka ikirere, izatera inenge nyinshi imbere kandi igabanye cyane imiterere ya minisiteri. Shandong Chenbang Fine Chemical Co., Ltd. yize ku ruhare HPMC yagize ku kigero cyo gufata amazi, ubwinshi, ibirimo ikirere hamwe n’imashini ya minisiteri ya macroscopique, kandi yiga ku ngaruka za hydroxypropyl methylcellulose HPMC ku miterere ya L ya minisiteri kuva icyerekezo cya microscopique. .
1. Ikizamini
1.1 Ibikoresho bibisi
Isima: iboneka mubucuruzi P.0 42.5 sima, imbaraga zayo 28d zo guhindagurika no gukomeretsa ni 6.9 na 48.2 MPa; umucanga: Chengde umusenyi mwiza wumugezi, mesh 40-100; selulose ether: yakozwe na Shandong Chenbang Fine Chemical Co., Ltd. Hydroxypropyl methylcellulose 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 guhingura imashini”, ubuvanganzo bwa minisiteri ni mm 80-120, kandi igipimo cyo gufata amazi kirenga 90%. Muri ubu bushakashatsi, igipimo cya lime-umucanga cyashyizwe kuri 1: 5, ihame ryagenzuwe kuri mm (93 + 2), na ether ya selile yivanze hanze, kandi amafaranga yo kuvanga yari ashingiye kuri misa ya sima. Ibintu by'ibanze bya minisiteri nk'ubucucike butose, ibirimo ikirere, gufata amazi, hamwe no guhora bipimishwa hifashishijwe JGJ 70-2009 “Uburyo bwo Kwipimisha ku Byibanze Byubatswe na Mortar”, kandi ikirere kirageragezwa kandi kibarwa ukurikije ubucucike buryo. Ibizamini byimbaraga, byoroshye kandi bigabanya imbaraga byikigereranyo byakozwe hakurikijwe GB / T 17671-1999 “Uburyo bwo Kugerageza Imbaraga Zumusenyi Mortar Sand (Method ISO)”. Diameter ya livre yapimwe na mercure porosimetry. Icyitegererezo cya mercure porosimeter yari AUTOPORE 9500, naho igipimo cyo gupima cyari 5.5 nm-360 μm. Hakozwe ibizamini 4 byose. Ikigereranyo cya sima-umucanga cyari 1: 5, ubukonje bwa HPMC bwari 100 Pa-s, naho dosiye 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 ether ya selile irashobora kugumana neza amazi, kugabanya umuvuduko wamaraso, kandi byujuje ibisabwa kugirango hydrated yuzuye yibikoresho bishingiye kuri sima. Ingaruka za HPMC mukubika amazi ya minisiteri.
Hamwe no kwiyongera kwa HPMC, igipimo cyo gufata amazi ya minisiteri cyiyongera buhoro buhoro. Imirongo ya hydroxypropyl methylcellulose ether ifite viscosities ya 100, 150 na 200 Pa.s mubyukuri ni bimwe. Iyo ibirimo ari 0.05% -0.15%, igipimo cyo gufata amazi cyiyongera ku murongo, kandi iyo ibirimo ari 0.15%, igipimo cyo gufata amazi kirenze 93%. ; Iyo ingano ya grits irenze 0,20%, ubwiyongere bwikigero cyo gufata amazi buba buke, byerekana ko umubare wa HPMC uri hafi yo kwiyuzuzamo. Ingaruka yo kugabanuka k'ubunini bwa HPMC hamwe n'ubukonje bwa 40 Pa.s ku gipimo cyo gufata amazi ni 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 hydroxypropyl methylcellulose HPMC ku bucucike no mu kirere cya sima ya sima
Iyo ingano ya HPMC ari 0-0.20%, ubucucike bwa minisiteri bugabanuka cyane hamwe no kwiyongera kwa HPMC, kuva kuri 2050 kg / m3 kugeza kuri 1650kg / m3, biri munsi ya 20%; iyo umubare wa HPMC urenze 0,20%, ubucucike buragabanuka. atuje. Ugereranije ubwoko 4 bwa HPMC hamwe nubucucike butandukanye, hejuru yubukonje, niko ubucucike bwa minisiteri bugabanuka; ubucucike bwimigozi ya minisiteri hamwe nubwiza buvanze bwa 150 na 200 Pa.s HPMC ahanini iruzuzanya, byerekana ko uko ubwiza bwa HPMC bukomeje kwiyongera, Ubucucike ntibukigabanuka.
Guhindura amategeko yikirere kirimo imyuka ihabanye no guhindura ubucucike bwa minisiteri. Iyo ibikubiye muri hydroxypropyl methylcellulose HPMC ari 0-0.20%, hamwe no kwiyongera kwa HPMC, umwuka wa minisiteri wiyongera hafi kumurongo; ibikubiye muri HPMC birenze Nyuma ya 0,20%, ikirere kirahinduka cyane, byerekana ko ingaruka zinjira mu kirere za minisiteri ziri hafi yo kwiyuzuza. Ingaruka yinjira mu kirere ya HPMC ifite ubwiza bwa 150 na 200 Pa.s iruta iya HPMC ifite ubwiza bwa 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) hamwe na hydrophobique matsinda (methyl, glucose impeta), 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 ya HPMC kumiterere yubukanishi bwa sima ya sima
Iyo ingano ya HPMC ari 0,05% gusa, imbaraga za flexural ya minisiteri zigabanuka cyane, ibyo bikaba biri munsi ya 25% ugereranije nicyitegererezo cyambaye ubusa nta hydroxypropyl methylcellulose HPMC, kandi imbaraga zo kwikuramo zishobora kugera kuri 65% byurugero rwuzuye - 80%. Iyo ingano ya HPMC irenze 0,20%, 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. Kubijyanye na mashini yubaka, nubwo ether ya selile irashobora kongera cyane igipimo cyo gufata amazi ya minisiteri no kunoza imikorere yayo, niba dosiye ari nini cyane, bizagira ingaruka zikomeye kumiterere ya minisiteri, bityo umubano hagati yabyo ugomba gupimwa muburyo bukwiye.
Hamwe no kwiyongera kwibirimo bya hydroxypropyl methylcellulose HPMC, igipimo cyikubye cya minisiteri cyerekanaga icyerekezo cyiyongera muri rusange, ubusanzwe bwari isano. Ibi ni ukubera ko selile yongeyeho selile itangiza umubare munini wumwuka mwinshi, utera inenge nyinshi imbere ya minisiteri, kandi imbaraga zo kwikomeretsa ziyobora roza ya minisiteri igabanuka cyane, nubwo imbaraga za flexural nazo zigabanuka kurwego runaka; ariko selile ether irashobora kunoza imiterere ya minisiteri, Ifite imbaraga zingirakamaro, ituma igabanuka ryihuta. Urebye muri rusange, ingaruka zifatika zombi ziganisha ku kwiyongera kwikigereranyo.
2.4 Ingaruka ya HPMC kuri L diameter ya minisiteri
Uhereye ku bunini bwa pore yo gukwirakwiza umurongo, ingano yo gukwirakwiza amakuru ya pore hamwe nuburinganire butandukanye bwibarurishamibare bwa AD ntangarugero, birashobora kugaragara ko HPMC igira uruhare runini kumiterere ya pore 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. Nyuma yo kongeramo HPMC, diameter ya pore ya diamant ya sima ya sima nini cyane kuruta iy'icyitegererezo cyambaye ubusa, kandi diameter ya pore ya median ya sample hamwe na dosiye ya 0.3% yongerewe na ordre 2 yubunini ugereranije nicyitegererezo cyuzuye.
. Birashobora kugaragara kuva ku mbonerahamwe ya 1 ko umubare w’imyobo itagira ingaruka cyangwa umwobo wangiritse ugabanuka cyane nyuma yo kongeramo HPMC, kandi umubare w’ibyobo byangiza cyangwa umwobo wangiza byiyongera. Ibinogo bitagira ingaruka cyangwa imyenge yangiza yintangarugero itavanze na HPMC ni 49.4%. Nyuma yo kongeramo HPMC, imyenge itagira ingaruka cyangwa imyanda yangiza iragabanuka cyane. Dufashe urugero rwa 0.1% nkurugero, imyenge itagira ingaruka cyangwa imyenge yangiza igabanukaho 45%. %, umubare wibyobo byangiza birenze 10um wiyongereyeho inshuro 9.
. bijyanye no gutatana kwinshi. 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.
Igihe cyo kohereza: Apr-03-2023