1. Isi ọrụ nke sel
Na ngwakọta nke ngwa ngwa, cellulose eart bụ isi ihe mgbakwunye a na-agbakwunye na obere obere ma nwere ike ime ka arụmọrụ nke ngwa agha ma na-emetụta usoro owuwe mmiri.
2. Ofdị Ethers
Mmepụta nke cellulose eather bụ nke a na-eji eriri eke site na mgbasa nke alkali, mmeghachi ahụ (etheritification), ịsacha, na-ata nkụ na usoro ndị ọzọ.
Dabere na akụrụngwa kachasị, enwere ike ekewa eriri anụ ahụ: eriri carton, eriri beda, wdg. Ugu nke polymerization dịgasị iche, nke na-emetụta ọhụụ nke polymerise nke ngwaahịa ha. Ugbu a, ndị na-emepụta cellulose na-eji eriri akwa (site na ngwaahịa nitrocellose) dị ka ihe bụ isi.
Enwere ike ekewa ethers n'ime ionic na nnọkọ. The ionic ụdị gụnyere ịmị mkpụrụ celloxythythythythythythythythythythythy tumadi gụnyere methy celdrose ,thylyythyl (hydroxyethyl cellulose, wdg.
Ugbu a, autose cellugul ejiri mee ihe eji eme ihe eji eme ya na methyl celdypypypyythyl sellilose ether (mhpgyl cellulose ether (mhdg) meththyl methyl cellulose ether (hpmc). Na ngwa agha na-agwakọta, n'ihi na ionicythythythythythylymylylym na-akwụghị ụgwọ n'anya ọnụego calcium, a na-ejikarị ngwaahịa calcium na-ejikọ, wdg dị ka ihe ciment. N'ebe ụfọdụ na China, a na-eji sọks cellulite cellugul dị ka ihe na-eme nke ọma maka ụfọdụ ngwa ahịa dị iche iche na-agbanwe agbanwe dị ka ihe mkpuchi ikuku na shuangfei. Ngwaahịa a dị mfe na mịrị amị, ọ naghị eguzogide mmiri, a na-atụkwa ya. A na-ejikwa hydroxyethythyth celloseth na ụfọdụ ngwakọta ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa ngwa.
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(1) solubality
Cellulose bụ polyhydroxy polymen ma ọ bụ gbazee. Mgbe akpachara anya, cellulose na-soluble na mmiri, itughari usoro na ihe mgbaze na-agba mbọ, ma nwee ọkụ. Solibes na-adabere n'ihe anọ: Nke mbụ, gọnarị ndị so na viscosity, belata viscosity, ala ahụ. Nke abụọ, njirimara nke ìgwè ndị ahụ wepụtara na usoro ekiri ahụ, buru ibu nke ewepụtara, belata soludity; Ndị ọzọ na-ewepụtara polar ahụ, ọ dị mfe celllose bụ igbari na mmiri. Nke ato, ogo nke ihe eji edochi anya na ikesa òtù nke ndi mmadu na Macromolucalles. Imirikiti ndị na-eme ọtụtụ mkpụrụ ndụ cellususe nwere ike ịgbaze na mmiri n'okpuru ihe eji edochi anya. Nke anọ The dị ala ogo nke polymerization, na-ahụ ihe dị ka ogo nke dochie anya nke enwere ike ịgbasa na mmiri.
(2) Njikọ mmiri
Njikwa mmiri bụ arụmọrụ dị mkpa nke cellose eather, ọ bụkwa arụmọrụ nke ọtụtụ ndị na-emepụta nri na-eme mkpọtụ, karịsịa ndị nọ na mbara igwe nwere oke okpomọkụ, attentionaa ntị na mbara igwe. Ihe ndị na-emetụta mmetụta njigide mmiri nke ngwa agha gụnyere ego nke cellose et na-agbakwunye, viscosity, nsị na ọnọdụ okpomọkụ nke ojiji. Nke dị elu ọnụọgụ nke cellulose ether tụkwasịrị, ka mma njigide mmiri; Mmetụta viscosity, ka mma idogide mmiri ahụ; Ihe kachaji - ihe ka mma.
(3) viscosity
Visaty viscis bu oke ihe di nkpa nke ngwaahịa ather. Ugbu a, ndị na-emepụta mkpụrụ ndụ e nwere oghere na-eji ụzọ dị iche iche na ngwa iji tụọ viscosity. Maka otu ngwaahịa ahụ, nsonaazụ vissityzọ vis dị iche iche dị iche iche, ụfọdụ nwere ndị nweburu ma ọlị. Ya mere, mgbe a tụnyere viscosity, a ga-eme ya n'etiti otu ule ahụ, gụnyere okpomọkụ, rotor, wdg.
N'ikwu na-ekwu, viscosity dị elu, ka mma idogide mmiri. Agbanyeghị, viscosity dị elu, onye dị elu molecular ogo nke cellulose ether, na ntinye aka nke onye so ya ga-enwe mmetụta na-adịghị mma na ike na owuwu nke ngwa agha. The dị elu viscosity, na-apụtawanye ìhè na nsonaazụ na-arụpụta na ngwa agha, mana ọ bụghị ozugbo. The dị elu viscosity, ndị na-ahụ n'anya mmiri ga-abụ. N'oge a na-ewu ewu, a na-egosipụta ya dị ka ịrapara na mpe mpe mpe mpe mpe mpe na mkpụrụ. Mana ọ baghị uru iwelie ike mgbochi mmiri nke mmiri ahụ n'onwe ya. N'oge a na-ewu ihe, arụmọrụ mgbochi Sag apụtaghị. Kama nke ahụ, ụfọdụ ndị na-ajụ oyi ma dị ala ma na-agbanwe usoro Methyl Cellulose nwere arụmọrụ dị mma iji melite ike mgbanyụ mmiri.
(4) Ọdịmma nke irighiri ihe:
A na-eji ihe otiti etrether ether dị njikere iji ya mee ntụ ntụ, na obere mmiri dị ala, na ọcha na-achọ 20% ruo 60% nke urughuru na-erughị 63 μm. Faneness na-emetụta ngbasa nke cellulose ether. Ahịhịa cellulose na-abụkarị n'ụdị granules, nke dị mfe ịgbasa ma gbazee na mmiri na-adịghị mma, yabụ na ha adịghị mma maka ngwakọta-ngwa ngwa ngwa ngwa (ụfọdụ ngwaahịa bụ flocculent, Ọ dịrịghị m mfe ịgbasa ma gbazee na mmiri, ma na-enwe ike ịmịcha mma). Na mgbakwunye-gwakọtara agwakọta, a na-achụsasị eet kelet n'etiti nchịkọta, ezigbo fillers na ciment na ciment ndị ọzọ. Naanị mma ntụ ntụ zuru oke nwere ike ịzere mkpụrụ osisi ether agglomeration mgbe ị na-agwakọta ya na mmiri. Mgbe agbakwunyere other na mmiri iji gbazee na agglomeration, o siri ezigbo ike igbasa ma gbazee.
(5) mgbanwe nke cellose ether
Mgbanwe nke cellose eatha bụ ndọtị nke arụmọrụ ya, ọ bụ akụkụ kachasị mkpa. Enwere ike imeziwanye ihe nke cellulose ether ka ọ na-eme ka ọ dị mma iji bulie akwara, adhesion, na-agbachi, emulsifing, mgbochi mmiri na ihe nkiri na-akpụ akpụ na mmanụ.
4. Mmetụta nke ikuku dị na Mmiri Mgbaze
Njikwa mmiri nke cellose eth na-agbadata na mmụba nke okpomọkụ. A na-etinye ngwa ndị ahụ bara uru, a na-etinyekarị ọgwụ na-ekpo ọkụ na-ekpo ọkụ na oke okpomọkụ (dị elu karịa 40 ° C) n'ọtụtụ gburugburu. Ntinye mmiri na nnabata mmiri na-ebute nsonaazụ ya na ọrụ na ọrụ mgbanaka. Ọ dabere na ọnọdụ okpomọkụ ka na-eduga na mmebi ngwa agha, ọ na-akatọ anya belata mmetụta nke ihe okpomọkụ n'okpuru ọnọdụ a. Emezigharịrị Ezi ntụziaka nke ọma n'ụzọ kwesịrị ekwesị, a na-eme mgbanwe mgbanwe na usoro nri. Ọ bụ ezie na ịbawanye usoro onunu ogwu (ọrụ na ngọngọ na ngọngọ na-enweghị ike ijigide mkpa nke iji, nke chọrọ ịbawanye ogo nke akwara, wdg, nke mere ka njigide mmiri nwere ike ịbụ rụzuru na oke okpomọkụ dị elu. Ọ na-enwe mmetụta dị mma mgbe ọ dị elu, nke mere na ọ na-enye arụmọrụ ka mma na ọnọdụ ọjọọ.
5. Ngwa na ngwa ngwa
Na mgbakwunye-gwakọtara ike, cellulose eling na-egwu ọrụ njigide mmiri, na-eme ka arụmọrụ owuwu. Ezigbo ihe arụmọrụ mmiri na-ahụ maka na ngwa agha agaghị akpata ájá, ntụ ntụ na ebe mbelata n'ihi ụkọ mmiri na-ezughị ezu. Mmetụta na-emekarị na-eme ka ike nke ngwa ọgụ. Ihe mgbakwunye nke mkpụrụ osisi cellow nwere ike ime ka viocosis dị elu nke mmiri ọkụ, nweekwa ọhụụ viscosis dị iche iche, si otú a na-eme ka mgbidi dị iche iche na-ebelata. Na mgbakwunye, ọrụ nke mkpụrụ osisi na-ekewa na ngwaahịa dị iche iche dịkwa iche. Dịka ọmụmaatụ, na tile adhesives, cellulose eather nwere ike ịbawanye oge mmeghe ma mezie oge ahụ; Na ngwa agha spraying, ọ nwere ike imeziwanye ike nke ngwa agha mmiri; Na ọkwa onwe onye, ọ nwere ike igbochi mmezi, nkewa na stratification. Ya mere, dị ka ihe mgbakwunye, mkpụrụ osisi na-ejikarị ya na ngwa ngwa.
Oge Post: Jan-11-2023