Saamaynta ether-ka cellulose ku leedahay dhimista caagga ah ee bilaashka ah ee hoobiye

Saamaynta ether-ka cellulose ku leedahay dhimista caagga ah ee bilaashka ah ee hoobiye

Dareemka barokaca laysarka ee aan xidhiidhka ahayn ayaa loo isticmaalay si joogto ah loo tijaabiyo yaraynta caagga ah ee hoobiye sibidhka wax laga beddelay ee HPMC iyadoo lagu hoos jiro xaalado la dardargeliyey, waxaana la arkay heerka khasaaraha biyaha isla wakhtigaas.Waxyaabaha HPMC iyo yaraynta bilaashka ah ee balaastikada ah iyo moodooyinka dib u noqoshada heerka khasaaraha biyaha ayaa loo sameeyay siday u kala horreeyaan.Natiijooyinku waxay muujinayaan in balaastigga bilaashka ah ee hoobiye sibidhka uu si toos ah hoos ugu dhaco kororka maadada HPMC, iyo yaraynta caagga ah ee hoobiye sibidhka ee bilaashka ah waxaa lagu dhimi karaa 30% -50% marka lagu daro 0.1%-0.4% (jajab tiro) HPMC.Korodhka ka kooban HPMC, heerka luminta biyaha ee hoobiye sibidhka ayaa sidoo kale si toos ah hoos u dhacaya.Heerka khasaaraha biyaha ee hoobiye sibidhka waxaa lagu dhimi karaa 9% ~ 29% marka lagu daro 0.1% ~ 0.4% HPMC.Waxa ku jira HPMC waxa ay leedahay xidhiidh toosan oo cad oo leh hoos u dhac bilaash ah iyo heerka khasaaraha biyaha ee hoobiye.HPMC waxa ay yaraynaysaa yaraynta caaga ah ee hoobiye sibidhka sababta oo ah xajintiisa wanaagsan ee biyaha.

Erayada muhiimka ah:methyl hydroxypropyl cellulose ether (HPMC);Hoobiye;Yaraynta caaga ah ee bilaashka ah;Heerka khasaaraha biyaha;Habka dib u noqoshada

Marka la barbardhigo shubka sibidhka, hoobiye sibidhka ayaa si fudud u dildilaaca.Marka lagu daro arrimaha alaabta ceeriin laftooda, isbeddelka heerkulka dibadda iyo qoyaanka ayaa ka dhigi doona daadinta biyaha sibidhka si degdeg ah, taasoo keenta dildilaac degdeg ah.Si loo xalliyo dhibaatada dildilaaca hoobiyeyaasha sibidhka, sida caadiga ah waxaa lagu xalliyaa xoojinta daaweynta hore, iyadoo la adeegsanayo wakiilka ballaarinta iyo ku darida fiber.

Sida admixture polymer caadi ahaan loo isticmaalo hoobiye sibidhka ganacsiga, ether cellulose waa derivative cellulose helay falcelinta cellulose dhirta iyo soodhaha caustic.Zhan Zhenfeng iyo al.waxay muujisay in marka maadada cellulose ether (jajab mass) ay ahayd 0% ~ 0.4%, heerka haynta biyaha ee hoobiye sibidhka wuxuu lahaa xidhiidh toosan oo wanaagsan oo la xidhiidha maaddada ether cellulose, iyo inta ka badan maadada cellulose ether, way ka weyn tahay. heerka haynta biyaha.Methyl hydroxypropyl cellulose ether (HPMC) waxaa loo isticmaalaa hoobiye sibidhka si loo hagaajiyo isku xidhnaanta iyo isku xidhnaanta sababta oo ah isku-xidhka, xasiloonida hakinta iyo hantida haysashada biyaha.

Warqadani waxay u qaadanaysaa dhimista caagga ah ee bilaashka ah ee hoobiye sibidhka shayga tijaabada ah, waxay daraasaysaa saamaynta HPMC ku yeelanayso yaraynta caagga ah ee hoobiye sibidhka, waxayna falanqaynaysaa sababta ay HPMC u yarayso caag-yarida bilaashka ah ee hoobiye sibidhka.

1. Qalabka ceeriin iyo hababka tijaabada

1.1 Qalabka Ceyriinka ah

Sibidhka loo isticmaalay tijaabada waxa uu ahaa sumadda conch 42.5R sibidhka Portland caadiga ah oo ay soo saartay Anhui Conch Cement Co., LTD.Baaxdeeda gaarka ah waxay ahayd 398.1 m² / kg, 80μm hadhaaga shaandhada waxay ahayd 0.2% (jajab tiro);HPMC waxaa bixiya Shanghai Shangnan Trading Co., LTD.Viscositykeedu waa 40 000 mPa·s, ciiddu waa ciid huruud ah oo aan dhab ahayn, module-ka ganaaxu waa 2.59, cabirka qaybta ugu badana waa 5mm.

1.2 Hababka tijaabada

1.2.1 Habka tijaabada caaga ah ee yaraynta bilaashka ah

Dhimista caagga ah ee bilaashka ah ee hoobiye sibidhka waxaa lagu tijaabiyay aaladda tijaabada ah ee lagu sharraxay suugaanta.Saamiga sibidhka iyo cammuudda hoobiye-beegtiyeedku waa 1:2 (saamiga tirada guud), iyo saamiga biyaha iyo sibidhka waa 0.5 (saamiga mass).U miisaan alaabta ceeriin iyadoo loo eegayo saamiga isku dhafka ah, isla markaana ku dar dheriga qaska walaaqaya 1min, ka dibna ku dar biyo oo sii walaaq ilaa 2min.Ku dar 20 g oo ah degeeeyaha (sonkorta granulated cad), si fiican isku walaaq, ku shub hoobiye sibidhka oo ka soo baxa bartamaha caaryada alwaax qaab wareeg ah, ka dhig inuu daboolo caaryada alwaax hoose, ku simi spatula, ka dibna isticmaal la tuuri karo filim caag ah si aad ugu faafiso dusha sare ee hoobiye sibidhka, ka dibna ku shub hoobiye tijaabada on marada miiska caagga ah si la mid ah si ay u buuxiyaan caaryada sare ee alwaax.Oo isla markiiba dhererka saxan aluminium qoyan oo ka dheer ballaadhka caaryada alwaax, si dhakhso ah u xoq dhinaca dheer ee caaryada alwaax.

Microtrak II LTC-025-04 dareeraha barokaca laysarka ayaa loo isticmaalay in lagu cabbiro yaraynta caagga ah ee bilaashka ah ee dhoobada sibidhka.Tallaabooyinka waa sida soo socota: Laba bartilmaameed oo tijaabo ah (taariko yar yar) ayaa la dhigay booska dhexe ee saxanka sibidhka ee la shubay, masaafada u dhaxaysa labada bartilmaameed ee tijaabada waxay ahayd 300mm.Ka dib, bir bir ah oo lagu rakibay dareeraha barakicinta laysarka ayaa la dul saaray ka sarreeya muunada, iyo akhrinta bilawga ah ee u dhaxaysa laysarka iyo shayga la cabbiray ayaa la hagaajiyay si uu ugu dhex jiro cabbirka 0.Ugu dambayntii, 1000W iodine tungsten laambad oo qiyaastii 1.0m ka sarraysa caaryada alwaax iyo marawaxada korontada oo qiyaastii 0.75m ka sarraysa caaryada alwaax (xawaaraha dabayshu waa 5m/s) ayaa la shiday isku mar.Tijaabada dhimista balaastikada ee bilaashka ah ayaa sii socotay ilaa muunada ay isku koobto oo ay asal ahaan xasiloon tahay.Inta lagu jiro tijaabada oo dhan, heerkulku wuxuu ahaa (20± 3) ℃ iyo qoyaanka qaraabada wuxuu ahaa (60± 5) %.

1.2.2 Habka tijaabinta heerka uumiga biyaha

Iyadoo la tixgelinayo saameynta ka kooban walxaha sibidhka ku salaysan ee heerka uumiga biyaha, suugaantu waxay isticmaashaa shaybaaro yaryar si ay u ekaato heerka uumiga biyaha ee shaybaarada waaweyn, iyo xiriirka ka dhexeeya saamiga Y ee heerka uumiga biyaha ee hoobiye sibidhka saxan weyn. iyo hoobiye cement-yar oo saxan ah iyo wakhtiga t(h) waa sidan soo socota: y= 0.0002 t+0.736

2. Natiijooyinka iyo doodaha

2.1 Saamaynta maadada HPMC ee hoobiye sibidhka ee bilaashka ah ee caagga ah

Laga soo bilaabo saameynta ay ku leedahay maadada HPMC ee caagga bilaashka ah ee hoobiye sibidhka, waxaa la arki karaa in caagga bilaashka ah ee hoobiye sibidhka caadiga ah uu inta badan ku dhaco 4h ee dillaaca degdega ah, iyo yaraanta caagga ah ee bilaashka ah ayaa si toos ah u kordheysa wakhti kordhinta.4saac ka dib, balaastigga lacag la'aanta ah ayaa gaadha 3.48mm, qaloocana wuxuu noqdaa mid deggan.Qaloocayada caagga ah ee bilaashka ah ee hoobiye sibidhka ee HPMC waxay dhamaantood ku yaalliin meel ka hoosaysa qalooca caagga ah ee yaraaday ee hoobiye sibidhka caadiga ah, taas oo muujinaysa in caagadaha yaraynta bilaashka ah ee hoobiye sibidhka HPMC ay dhamaantood ka yar yihiin kan hoobiye sibidhka caadiga ah.Kordhinta maaddada HPMC, balaastigga bilaashka ah ee hoobiye sibidhka ayaa si tartiib tartiib ah u yaraanaya.Marka la barbar dhigo hoobiye sibidhka caadiga ah, yaraynta caagga ah ee bilaashka ah ee hoobiye sibidhka HPMC oo lagu daray 0.1% ~ 0.2% (jajab baaxad leh) ayaa hoos u dhacaysa ilaa 30%, qiyaastii 2.45mm, iyo yaraynta caagga ah ee bilaashka ah ee 0.3% hoobiye sibidhka HPMC ayaa hoos u dhacaya ilaa 40 %.Waxay ku saabsan tahay 2.10mm, iyo dhimista caagga ah ee bilaashka ah ee 0.4% hoobiye sibidhka HPMC ayaa hoos u dhacay qiyaastii 50%, taas oo ah ilaa 1.82mm.Sidaa darteed, isla wakhtiga dildilaaca, balaastigga bilaashka ah ee hoobiye sibidhka HPMC wuu ka hooseeyaa kan hoobiye sibidhka caadiga ah, taas oo muujinaysa in ku daridda HPMC ay yarayn karto caag-yarida bilaashka ah ee hoobiye sibidhka.

Laga soo bilaabo saameynta ay ku leedahay maadada HPMC ee caagga ah ee bilaashka ah ee hoobiye sibidhka, waxaa la arki karaa in kororka maadada HPMC, hoos u dhigista caagga ah ee bilaashka ah ee hoobiye sibidhka si tartiib tartiib ah hoos u dhacaya.Xidhiidhka ka dhexeeya balaastigga bilaashka ah ee hoobiye sibidhka iyo ka kooban HPMC (w) waxa lagu rakibi karaa qaacidooyinka soo socda: S= 2.77-2.66 w

Natiijooyinka falanqaynta kala duwanaanshaha dib u celinta tooska ah ee hoos u dhaca bilaashka ah ee HPMC iyo hoobiye sibidhka, halkaasoo: F ay tahay tirakoobka;SaxiixWaxay ka tarjumaysaa heerka muhiimka ah ee dhabta ah.

Natiijooyinku waxay muujinayaan in isku xidhka isku xidhka isla'egtan uu yahay 0.93.

2.2 Saamaynta maadada HPMC ee heerka khasaaraha biyaha ee hoobiye sibidhka

Marka la eego xaaladda dardargelinta, waxaa laga arki karaa isbeddelka heerka khasaaraha biyaha ee hoobiye sibidhka oo leh nuxurka HPMC, heerka khasaaraha biyaha ee dusha hoobiye sibidhka ayaa si tartiib tartiib ah hoos ugu dhacaya kororka content HPMC, oo asal ahaan soo bandhigaya hoos u dhac toos ah.Marka la barbar dhigo heerka khasaaraha biyaha ee hoobiye sibidhka caadiga ah, marka ka kooban HPMC uu yahay 0.1%, 0.2%, 0.3%, 0.4%, siday u kala horreeyaan, Heerka khasaaraha biyaha ee hoobiye sibidhka waaweyn ee hoos u dhacay 9.0%, 12.7%, 22.3% iyo 29.4%, siday u kala horreeyaan.Ku darida HPMC waxay yaraynaysaa heerka luminta biyaha ee hoobiye sibidhka waxayna ka dhigaysaa biyo badan inay ka qayb qaataan fuuq-celinta hoobiye sibidhka, sidaas darteed samaynta awood ku filan oo adkaysi ah oo looga hortagayo khatarta dillaaca ee uu keeno deegaanka dibadda.

Xidhiidhka ka dhexeeya heerka luminta hoobiye sibidhka (d) iyo ka kooban HPMC (w) waxa lagu rakibi karaa qaacidooyinka soo socda: d= 0.17-0.1w

Natiijooyinka falanqaynta kala duwanaanshiyaha dib-u-celinta tooska ah ee nuxurka HPMC iyo heerka luminta biyaha hoobiye sibidhka ayaa muujinaya in isku xidhka isku xidhka isla'egtan uu yahay 0.91, xidhiidhkuna waa cad yahay.

3. Gabagabo

Yaraynta caagga ah ee bilaashka ah ee hoobiye sibidhka ayaa si tartiib tartiib ah hoos ugu dhacaya marka ay korodho waxa ku jira HPMC.Dhimista caagga ah ee bilaashka ah ee hoobiye sibidhka oo leh 0.1% ~ 0.4% HPMC waxay hoos u dhigtaa 30% ~ 50%.Heerka khasaaraha biyaha ee hoobiye sibidhka ayaa hoos u dhacaya kororka maadada HPMC.Heerka khasaaraha biyaha ee hoobiye sibidhka oo leh 0.1% ~ 0.4% HPMC wuxuu hoos u dhacayaa 9.0% ~ 29.4%.Yaraynta caagga ah ee lacag la'aanta ah iyo heerka khasaaraha biyaha ee hoobiye sibidhka ayaa toosan oo ka kooban HPMC.