NKWUP P
China emeela ngwa ngwa ngwa ngwa na-adịkarị mma maka ihe karịrị afọ iri abụọ. Karịsịa n'afọ ndị na-adịbeghị anya, ngalaba gọọmentị mba dị mkpa ejirila ihe dị mkpa na mmepe nke ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa. Ka ọ dị ugbu a, enwere ihe karịrị ọkọlọtọ 10 na obodo na obodo nke ejiriwo ngwa agha dị njikere. Ihe karịrị 60%, e nwere ihe karịrị narị ndị ọrụ ngwa agha 800 dị njikere karịa ogo ndị nkịtị, yana ikike imepụta kwa afọ nke nde 274 nde. N'afọ 2021, usoro kwa afọ nke ngwa agha nkịtị dị njikere bụ 62.02 nde.
N'oge usoro ihe owuwu, ihe owuwu na-atụfu oke mmiri ma na-enweghị oge na mmiri ga-ezuru na hydrate, na-ebute ike ezughi oke na cracking ciment pacening. Mkpụrụ osisi ether bụ polymer na-enwekarị mmasị na ngwa agha a gwakọtara. O nwere ọrụ nke njigide mmiri, ebe dị njọ, mbata na ntinye ikuku, ma nwee ike ime ka arụmọrụ nke ngwa agha.
Iji mee ka ngwa agha ahụ mezuru ihe ndị ahụ chọrọ ma dozie nsogbu nke ịgbagọ ike na ike nke jikọtara ọnụ, ọ bụ ihe dị mkpa ịgbakwunye cellose na ngwa agha. Nkebi edemede a na-ewebata njirimara nke cellulose eather na-emetụta ihe nke ihe ndị sitere na ihe onwunwe ciment, na-enwe olile anya inye aka dozie nsogbu teknụzụ metụtara ya.
2 Okwu Mmalite na Cell
A na-eme ewer (cellulose ether) site na sellulite site na mmeghachi omume nke otu ma ọ bụ karịa ndị ọrụ nza ma na-egwekpọ.
2.1 ogo nke Ether's
Dabere na usoro kemịkalụ e lebara anya, a ga-ekewa eyers mkpụrụ ndụ n'ime otu eyers. ENIC Cell Cellunose na-agụnye celloxythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythythyl anya Ahịhịa mkpụrụ ndụ na-abụghị nke na-abụghị merther (mc), hydroxyl methyl methylise ether (hpmc) na hydroxyetyl eriri ether (HC) na ndị ọzọ. Agbụrụ ndị na-abụghị nke IEH-IEDs na-ekewa n'ime eyers-soluble na-ekesasị mmiri. A na-ejikarị ndị na-abụghị nke ionic mmiri na-sossible na-ejikarị ngwa agha. N'ihe nke calcium Ens, ndị Ionic Cell Cell na-akwụghị ụgwọ, n'ihi ya, ngwaahịa ndị a na-eji ngwa ngwa na-eji ciment, wdg. Dị ka ihe ciment. A na-eji usoro ikuku na-abụghị nke IEH-soluble nke ikuku na-eme n'ọtụtụ ụlọ ọrụ n'ihi nkwụsi ike nke nkwusioru ha na mmetụta mgbochi.
Dị ka ndị ọrụ ether dị iche iche ahọpụtara na usoro ether, ngwaahịa cellythythythythythythylthyythyl methyl methyl methyl cellulose, benzzyl cellosethyl cellulose na phenyl cellulose.
Ahy na-etinyekarị na ngwa agha na-etinyekarị methyl na-agụ methyl sellise ether (hydropy) na hydr) n'etiti ha, Hpmc na heshc bụ nke a kacha eji.
2.2 Ngwongwo kemịkal nke cellulose ether
Ọ bụla setịpụrụ eathal nwere usoro ihe nhazi nke cellulose-anydroglose. Na usoro nke imepụta eriri mkpụrụ osisi ahụ, ebu ụzọ kpo oku na ngwọta Alkaline wee jiri onye na-elekọta ndị na-eme ihe. A na-asacha ngwaahịa mmeghachi omume dị ọcha ma mee ka a na-eji ntụ ntụ na-eji otu mkpụrụ osisi.
Na mmepụta nke mc, naanị methyl chloride a na-eji dị ka onye na-eme ihe nkiri Na mgbakwunye na methyl chloride, a na-ejikwa oxide oxide na-eme iji nweta ndị nnọchi anya hydropyyl na mmepụta nke HPMC. Ethersdị dị iche iche mkpụrụ ndụ nwere ogo dị iche iche dị iche iche, nke na-emetụta usoro ndabara na ikuku gel nke sel.
2.3 Njirimara nke cellulose ether
Njirimara nke cellulose ether nwere ezigbo mmetụta na ọrụ nke ciment. Enwere ike iji Ewer cell iji melite cosesivose na mmiri mmiri nke ciment, mana nke a dabere na mkpụrụ osisi ahụ na-adakarị na mmiri. Isi ihe ndị na-emetụta mgbasa nke selsilose nke Ether bụ oge mgbasa ozi, na-akpali ọsọ na ntụ ntụ.
2.4 Ọrụ ịnya na ngwa agha ciment
Dịka ihe dị mkpa nke ciment slurry, bibie ya na akụkụ ndị a.
(1) melite ọrụ nke ngwa agha ma bulie viscosity nke ngwa agha.
Na-etinye ohere ire ọkụ nwere ike igbochi ngwa agha site na ikewapụ ma nweta uwe edo edo na uwe. Iji maa atụ, ụlọ ntu na-etinye hempc, hpmc, wdg, dị mma maka ngwa ngwa na plasta. , Shoate ọnụego, okpomọkụ, collapse ịta ma belata nnu.
(2) O nwere nsonaazụ a na-apụ apụ.
N'ihi adịghị adịghị mma, iwebata ìgwè mmadụ n'ime irighiri ihe ahụ na-ebelata elu elu nke ahụ, ọ dịkwa mfe iwebata steepụ, otu na ezigbo ndị ahụ na-agwakọta na ngwa ahụ. "Ball ike arụmọrụ" na-eme ka arụmọrụ owuru nke ngwa agha, na-ebelata mmiri nke ngwa agha ma na-ebelata ihe ọkụkụ nke ngwa agha. Ule egosila na mgbe ị na-agwakọta ọnụnọ na hpmc dị 0,5%, ọdịnaya nke ngwa agha bụ nke kachasị, ihe dị ka 55%; Mgbe ọnụ ahịa na-akụda mkpọrọgwụ karịrị 0,5%, ọdịnaya nke ngwa agha ji nke nta nke nta na-eme ka ọdịnaya gas dị ka ego na-abawanye.
(3) Nọgide na-agbanweghi.
WAX nwere ike igbari, mmanu ma bido n'elu osisi ahụ, ma na-eme ka ihe dị mma nke ngwa agha na plasta. Ọ dịghị mkpa ịkpụzi ya tupu oge eruo. Mgbe owuwu, ihe ndina ciment nwekwara ike ịnwe ogologo oge nke hydretion na-aga n'ihu n'akụkụ ụsọ iji melite ndọlite n'etiti ngwa agha na mkpụrụ.
Mmetụta ngbanwe nke cellulose eather na ihe ndị dabeere na-emebi emebi na-agụnye oke mmiri, njigide mmiri, ntinye ikuku na azụ. Site na iji usoro ciment na ihe ndị dabeere ciment, mmekọrịta dị n'etiti eyers cellulose na ciment slurry na-eji nwayọọ nwayọọ na-aghọ Homespot.
Oge Post: Dec-16-2021