Cellulose ether: ihe ndị dị n'elu nwere mmetụta dị ukwuu, na ahịa ala na-eto eto.
Cellulose ether bụ ụdị ihe eji eme polymer ekepụtara, nke nwere emulsification na njirimara nkwusioru. N'ọtụtụ ụdị, hydroxypropyl methyl cellulose ether bụ HPMC bụ mkpụrụ kachasị elu, nke a na-ejikarị eme ihe, mmepụta ya na-abawanye ngwa ngwa.
N'ime afọ ndị na-adịbeghị anya, na-erite uru site na ọganihu akụ na ụba mba, mmepụta nke cellulose ether nke mba anyị na-ebili kwa afọ. N'otu oge ahụ, na mmepe nke sayensị ụlọ na nkà na ụzụ, mbụ mkpa mbubata a ọnụ ọgụgụ buru ibu nke elu-ọgwụgwụ cellulose ether now ji nwayọọ nwayọọ na-aghọta localization, na mbupụ nke anụ ụlọ cellulose ether na-ebili. Ihe omuma gosiputara na site na Jenụwarị rue Nọvemba 2020, China bupụrụ tọn cellulose ether 64,806, gbagoro 14.2% n'afọ, karịa nke 2019 dum.
N'ime afọ ndị na-adịbeghị anya, na-erite uru site na ọganihu akụ na ụba mba, mmepụta nke cellulose ether nke mba anyị na-ebili kwa afọ. N'otu oge ahụ, na mmepe nke sayensị ụlọ na nkà na ụzụ, mbụ mkpa mbubata a ọnụ ọgụgụ buru ibu nke elu-ọgwụgwụ cellulose ether now ji nwayọọ nwayọọ na-aghọta localization, na mbupụ nke anụ ụlọ cellulose ether na-ebili. Ihe omuma gosiputara na site na Jenụwarị rue Nọvemba 2020, China bupụrụ tọn cellulose ether 64,806, gbagoro 14.2% n'afọ, karịa nke 2019 dum.
Cellulose ether emetụtara ọnụ ahịa owu elu
Ihe ndị bụ isi maka ethers cellulose gụnyere ọrụ ugbo na nke ọhịa, gụnyere owu a nụchara anụcha, na ngwaahịa kemịkal, gụnyere propylene oxide. Ngwa ngwa nke owu a nụchara anụcha bụ owu obere cashmere, na obere cashmere owu na-emepụta na Shandong, Xinjiang, Hebei na Jiangsu. Isi iyi nke ajị anụ owu bara ụba nke ukwuu na enweghị oke.
Owu na-enye oke oke na usoro akụ na ụba nke ọrụ ugbo ngwa ahịa, ọnụ ahịa ya na-emetụtakwa ọnọdụ eke na ọkọnọ na ọchịchọ nke mba ụwa. N'otu aka ahụ, propylene oxide, chloromethane na ngwaahịa kemịkalụ ndị ọzọ na-emetụtakwa ọnụ ahịa mmanụ crude zuru ụwa ọnụ. Ebe ọ bụ na akụrụngwa na-akwụ ụgwọ dị ukwuu na nhazi ọnụ ahịa nke cellulose ether, mgbanwe nke ọnụahịa akụrụngwa na-emetụta ọnụahịa ire ere nke ether cellulose.
Iji nagide nrụgide ọnụ ahịa, ndị na-emepụta cellulose ether na-ebufekarị nrụgide na ụlọ ọrụ dị n'okpuru ala, ma mmetụta na-enyefe na-emetụta mgbagwoju anya nke ngwaahịa teknụzụ, ụdị dị iche iche nke ngwaahịa na ọkwa nke ọnụahịa ngwaahịa na agbakwunyere uru. N'ozuzu, ụlọ ọrụ nwere nnukwu ihe mgbochi teknụzụ dị elu, ụdị ngwaahịa bara ụba na uru agbakwunyere dị elu nwere uru dị ukwuu ma ga-edobe ọkwa uru dị ukwuu kwụsiri ike. Ma ọ bụghị ya, ụlọ ọrụ kwesịrị inwe nrụgide ọnụ ahịa ka ukwuu. Na mgbakwunye, ọ bụrụ na mpụga gburugburu ebe obibi bụ ejighị n'aka na nso nke ngwaahịa fluctuations bụ nnukwu, upstream akụrụngwa ụlọ ọrụ ndị ọzọ njikere ịhọrọ downstream ahịa na nnukwu mmepụta ọnụ ọgụgụ na ike keukwu ike, ka iji hụ na-adọ aku na uba uru na ibelata ihe ize ndụ. Ya mere, nke a na-egbochi mmepe nke obere ụlọ ọrụ cellulose ether ruo n'ókè ụfọdụ.
Cellulose ether bụ ụdị ihe eji eme polymer ekepụtara, nke nwere emulsification na njirimara nkwusioru. N'ọtụtụ ụdị, hydroxypropyl methyl cellulose ether bụ HPMC bụ mkpụrụ kachasị elu, nke a na-ejikarị eme ihe, mmepụta ya na-abawanye ngwa ngwa.
Site na ọganihu sayensị na teknụzụ na-aga n'ihu, ahịa ahịa chọrọ ala na-eto eto, a na-atụkwa anya na mpaghara ngwa ngwa ga-abawanye na-aga n'ihu, ihe ndị dị n'okpuru ala na-ejigide uto kwụsiri ike. N'ime usoro ahịa ahịa nke cellulose ether, ihe ụlọ, mmepụta mmanụ, nri na ubi ndị ọzọ na-etinye nnukwu ọnọdụ. N'ime ha, ngalaba ihe owuwu ụlọ bụ nnukwu ahịa ndị ahịa, na-aza ihe karịrị 30%.
Ụlọ ọrụ ihe owuwu bụ mpaghara oriri kachasị ukwuu nke ngwaahịa HPMC
N'ime ụlọ ọrụ ihe owuwu, ngwaahịa HPMC na-egwu njikọ dị mkpa, njigide mmiri na mmetụta ndị ọzọ. Mgbe agwakọta a obere ego nke HPMC na ciment ngwa agha, na viscosity, tensile na shiee ike nke ciment ngwa agha, ngwa agha na ihe nkedo nwere ike mụbaa, ka mma ịrụ ọrụ nke ụlọ ihe, melite àgwà nke ewu na n'ibu na-ewu arụmọrụ. Na mgbakwunye, HPMC bụkwa ihe dị mkpa retarder maka mmepụta na njem nke azụmahịa ihe, nke na-ekere òkè na mmiri kpochidoro na ime ka rheological Njirimara nke ihe. Ka ọ dị ugbu a, HPMC bụ ngwaahịa ether cellulose kacha mkpa ejiri na-ewu ihe mkpuchi.
Ụlọ ọrụ ụlọ bụ isi ụlọ ọrụ ogidi nke akụ na ụba mba anyị. Ihe omuma a gosiputara na mpaghara ihe owuwu ulo gbagoro site na ijeri square 7.08 na 2010 rue ijeri square 14.42 na 2019, na-akwalite uto nke ahia ether cellulose.
N'ozuzu ọganihu nke ezigbo ala na ụlọ ọrụ bulie, na ebe a na-ewu na ire ere bilie afọ na-afọ. Data ọha na-egosi na na 2020, mbelata kwa afọ kwa afọ na mpaghara ihe owuwu ọhụrụ nke ụlọ obibi azụmahịa na-aga n'ihu na-ebelata, 1.87% kwa afọ na afọ, 2021 na-atụ anya na ọ ga-aga n'ihu nrụzi. N'ime ọnwa abụọ mbụ nke afọ a, ọnụ ọgụgụ na-eto eto nke ebe obibi azụmahịa gbagoro na 104.9%, mmụba a na-akwanyere ùgwù.
Ịgbapu mmanụ
A na-emetụta ahịa ụlọ ọrụ injinia na-egwu mmiri nke ọma site na ntinye ego E&P zuru ụwa ọnụ, ebe ihe dị ka 40% nke pọtụfoliyo nyocha ụwa na-etinye aka na ọrụ injinia.
N'oge a na-egwupụta mmanụ na mmepụta ihe, mmiri mmiri na-egwupụta ihe na-arụ ọrụ dị mkpa n'ibu na ịkwụsịtụ ibe, na-ewusi mgbidi oghere ike na nhazi nrụgide nhazi, na-eme ka ọ dị jụụ na lubricating bit, na ịnyefe ike hydrodynamic. Ya mere, n'ime ọrụ ịkụ mmanụ, ọ dị ezigbo mkpa ịnọgide na-enwe iru mmiri kwesịrị ekwesị, viscosity, fluidity na ihe ndị ọzọ na-egosi mmiri mmiri. Polyanionic cellulose, ma ọ bụ PAC, nwere ike itolite, mmanye ibe n'ibe, na nyefee ike hydrodynamic. N'ihi ọnọdụ ala dị mgbagwoju anya nke ebe nchekwa mmanụ na ihe isi ike nke ịkụ ala, enwere ọnụ ọgụgụ buru ibu nke ihe eji eme ihe PAC.
Ụlọ ọrụ excipients ọgwụ
A na-eji ethers cellulose na-abụghị ionic eme ihe n'ọtụtụ ebe na ụlọ ọrụ ọgwụ dị ka ihe ndị na-emepụta ọgwụ, dị ka thickeners, dispersants, emulsifiers na ndị na-eme ihe nkiri. A na-eji ya maka mkpuchi ihe nkiri na nrapado nke mbadamba ọgwụ, a pụkwara iji ya mee ihe na nkwụsịtụ, nkwadebe anya, mbadamba ihe na-ese n'elu mmiri na ihe ndị ọzọ. N'ihi ihe ndị ọzọ siri ike chọrọ na ịdị ọcha na viscosity nke ngwaahịa cellulose ether ọgwụ, usoro mmepụta ihe dị mgbagwoju anya na usoro ịsa ahụ dị mgbagwoju anya. E jiri ya tụnyere ngwaahịa ether cellulose ndị ọzọ, ọnụ ọgụgụ nchịkọta dị ala, ọnụ ahịa mmepụta dị elu, ma ngwaahịa agbakwunyere uru dịkwa elu. A na-ejikarị ihe ndị na-emepụta ọgwụ eme ihe na nkwadebe ọgwụ ọgwụ, ọgwụ patent China, ngwaahịa nje na biochemical na ngwaahịa ọgwụ ndị ọzọ.
N'ihi na ụlọ ọrụ ihe inyeaka ọgwụ malitere n'oge, ọkwa mmepe n'ozuzu dị ala ugbu a, usoro ụlọ ọrụ kwesịrị imeziwanyewanye ya. N'ime uru nke nkwadebe ọgwụ n'ime ụlọ, ọnụ ahịa mmepụta nke uwe ọgwụ n'ime ụlọ bụ 2%-3% dị ntakịrị, nke dị ntakịrị karịa nke ọgwụ ndị mba ọzọ (ihe dịka 15%). Enwere ike ịhụ na a ka nwere ohere dị ukwuu maka mmepe nke ihe ndị na-emepụta ọgwụ ụlọ, nke a na-atụ anya na ọ ga-eme ka ọganihu nke cellulose ether dị mkpa.
Oge nzipu: Ọgọst-31-2022