Abstrac:Kameho ea litaba tse fapaneng tsa hydroxypropyl methylcelulose e holim 'a mefuta ea seretse sa seretse se fapaneng se ommeng e neng e ithutoa. Liphello tse bontšitsoeng hore: Ka keketseho ea litaba tsa cellulose Ether, Consifincy le Tekanyo e fokotsehile, 'me ha e ntse e fokotseha. Katoloso, 7D le lintlha tse qotsitsoeng li fokotsehile, empa tšebetso e mengata ea selikalikoeng se bitsoang se ommeng e ntlafalitsoe.
0.Preface
Ka 2007, makhetlo a tšeletseng le khaminete ea naha e fanoeng "e le ebisoe mabapi le ho kopanya seretse le moeling ona". Hona joale, litoropo tse 127 naheng ea naha li nkile mosebetsi oa "thibelang" selika-fofane se fapaneng se sa tloaelehang. Monyetla. Ka nts'etsopele e matla ea 'maraka o kopaneng ea lehae,' maraka a fapaneng a naha, ho sebelisa lingaka tsa ho rekisa ka boomo, ho khelosa khoebo e tsoang ka boomo. Ngaka e phetseng hantle le e hlophisehileng. Hajoale, joalo ka lik'homik'hale tsa konkreite, li-conmitores tse tsamaisoang haholo li sebelisoa haholo ka kopanelo, 'me hangata ke tse' maloa tse sebelisoang u le mong. Haholo-holo, ho na le mefuta e mengata ea lingoloa tse lefung e tsoakaneng, empa ka seretse se fapaneng se se nang meeli, empa ho se hloke ho sebelisa litšila tsa thepa, esita le ho atisa ho sebelisoa hampe. Seretseng se tloaelehileng se se nang meeli se sehiloeng, ether ea khalose e bapala karolo ea ho boloka metsi, ho holisa le ntlafatso ea ts'ebetso ea kaho. Ts'ebetso ea ho boloka metsi hantle ea metsi e tiisa hore seretse se ommeng se ke ke sa baka samela, ho pholletsa le phokotso ea khaello ea metsi le ho fella ka mokhoa o sa felloe. Tšusumetso e kholo e ntlafatsa haholo matla a sebopeho sa seretse se metsi. Pampiri ena e etsa ho ithuta ka mokhoa o hlophisehileng tšebelisong ea seretse sa cellulose, e nang le bohlokoa bakeng sa mokhoa oa ho sebelisa litlatsetso ka mokhoa o tloaelehileng.
1. Lisebelisoa tse tala le mekhoa e sebelisitsoeng tlhahlobong
1.1 Lisebelisoa tse tala bakeng sa tlhahlobo
Samente e ne e le tlhoekang ea P. 042.5 Ash e fofang ka Semela sa Matla Taiyuan, Bothata
Mokhoa oa liteko tsa 1.2
Tlhahlobo ea sampole le tlhahlobo ea ts'ebetso e ile ea etsoa ho latela mokhoa oa ho leka oa Teko ea Ts'ebetso ea Sertar ea kaho.
2. Morero oa liteko
2.1 foromo bakeng sa tlhahlobo
Teko ena, palo ea boitsebiso bo bong le bo bong ba ton ea seretse sa seretse se kopaneng e sebelisoa e le mokhoa oa mantlha oa tlhahlobo, mme metsi ke tšitiso ea metsi a 1 ea seretse se fapaneng se ommeng.
2.2 moralo o khethehileng
Ho sebelisa foromo ena, palo ea hydroxypropyLe methylcellllulose Ether Ho boloka, ho fokola, ho bonahala ho hlakile, ho beha nako le matla a seretse a sa tsoakoang a ka lemoha melemo e nepahetseng ea ts'ireletso e omileng ea seretse, e le hore ts'ireletso ea tikoloho le matla.
3. Liphetho tsa liteko le tlhahlobo
Liphetho tsa liteko tsa 3.1
Liphello tsa litekanyetso tse fapaneng tsa maikutlo a hydroxypropyLe methylcelulose ea metsi, e feto-fetohang, tekanyo e hlakileng, ho beha nako le matla a seretse se fapaneng se ommeng.
3.2 Tlhahlobo ea liphetho
E ka bonoa phello ea litekanyetso tse fapaneng tsa HydroxyproPyLe methylcelulose ea metsi, e bonolo, ho bonahala nako le matla a seretse se fapaneng se ommeng. With the increase of cellulose ether content, the water retention rate of wet mortar is also gradually increasing, from 86.2% when hydroxypropyl methyl cellulose is not mixed, to 0.6% when hydroxypropyl methyl cellulose is mixed. Tikoloho ea ho robala ea metsi e fihla ho 96.3%, e bolelang hore ts'ebetso ea ho ikoetlisa ka metsi ea profil methyl e lokile haholo; Butle-butle e fokotseha tlasa ts'ebetso ea metsi ea profil methyl celluloulose E ho tola ea seretse se chesang); Botle ba ho bonahala bo bontša mokhoa oa ho theoha, ho bonts'a hore ts'ebetso ea metsi ea profo ea profil le e fokotsa letsoalo; Nako ea ho beha butle butle butle butle ka keketseho ea litaba tsa hydroxypropyproppy e ngata e feta Matla a se nang khatello ea 7D mme a 28d a fokotsehile (tekanyetso e kholo, e hlakileng haholoanyane). Sena se amana le keketseho ea bophahamo ba seretse le phokotso ho letsoalo le bonahalang. Ho eketsoa ha hydroxypropypropiyL methyl methyl Li-micropores li ntlafatsa ho tšoarella ha seretse.
4. Tlhokahalo ea ts'ebeliso ea ts'ebeliso ea cellulose ether ka seretse se tloaelehileng se semmeng
1) Khetho ea lihlahisoa tsa libuna tsa cellulose ether. Ka kakaretso, e leng se etsahetseng, ts'ebetso ea eona ea metsi e ntlafatsang metsi, empa pono ea eona e matla, e nang le kotsi ea seretse; Ho khatholla ha ether ea cellulose ether e tlase seretseng se fapaneng se ommeng. Ho thoe ho hang ha ho na, ho bonolo haholoanyane ho qhala. Tlas'a tlhahlobo e ts'oanang, e tšehetsa botle ba matla a ho boloka metsi.
2) Khetho ea litekanyetso tsa Ether tsa Moulose Ether. Ho tsoa liphethong tsa liteko le tlhaiso ea phello ea litaba tsa cellulose e tsoang ho tefo ea seretse sa kaho ho hlalosetsoa ka lebaka la tekanyetso e loketseng. Tekanyetso ea hydroxypropypropyLe methyl celdlose e tsoang seretseng se tloaelehileng sa 0.1 kg / t-0.3 Kg / Ho Boloka Methyl Kotsi ea boleng; Tekanyetso ea HydroxypropypropyLe Methyl Cellulose Ether ka Seterata se Khethehileng sa Poster
3) Ho sebelisoa ts'ebeliso ea cellulolese ether ka seretse se fapaneng se fapaneng se fapaneng. Mokhanni oa ho lokisa selikalikoko se tloaelehileng se ommeng, haholo-holo ka ho boloka metsi le ho boloka litšenyehelo, ho boloka lisebelisoa; Haeba o sebelisoa a le mong ka CAL CONLO SLILLOAL END, matla a tlamehang a ke ke a fihlela litlhoko, le palo e nepahetseng ea phofo ea lato e sosong e ka eketsoa; Ka lebaka la kakaretso e tlase ea 'mele oa seretse, phoso ea tekanyo e kholo ha e sebelisoa ke le mong. Boleng ba lihlahisoa tsa seretse se fapaneng se omileng.
5. Liphetho le litlhahiso
1) Ka seretse se tloaelehileng se fapaneng se ommeng, ka keketseho ea litaba tsa hydroxypropyL Matla a hatelletsoeng a 285 a fokotsehile, empa ts'ebetso ea semer ea sere se sitisa e ne e ntlafalitsoe ha e le litaba tsa celdroypropy.
2) In the process of preparing ordinary dry-mixed mortar, cellulose ether with suitable viscosity and fineness should be selected, and its dosage should be determined strictly through experiments. Ka lebaka la kakaretso e tlase ea 'mele oa seretse, phoso ea tekanyo e kholo ha e sebelisoa ke le mong. Ho khothalletsoa ho e kopanya le morekisi pele, ebe u eketsa palo ea lihlahisoa tsa lihlahisoa tsa seretse se kopaneng.
3) Selere se seme se ommeng ke indasteri e tsoang China. Mohato oa ho sebelisa litlatsetso tsa seretse, ha rea lokela ho phehella palo ea boleng, empa ho fokotsa litšenyehelo tsa boleng bo tebileng, 'me ka sebele pholiso ea litšila tsa indasteri le tšebeliso ea matla a matla.
Nako ea poso: Feb-22-2023