Umphumela wokuqina we-cellulose ether

I-Cellulose AfersIngabe iqembu lama-polymers aguquguqukayo asetshenziswa kabanzi kwizimboni ezahlukahlukene zezakhiwo zazo zokuqina. Kusukela ngesingeniso sezithathela ze-cellulose kanye nezakhiwo zazo ezihlelekile, leli phepha lihlela ezimweni ngemuva komphumela wazo wokuqina, licacise ukuthi ukuhlangana kwama-molecule kwawo amanzi kuholela ekuthuthukisweni kwe-viscosity. Izinhlobo ezahlukahlukene ze-cellulose iziphathamandla kuxoxwa ngazo, kufaka phakathi i-methyl cellulose, i-hydroxyyethyl cellulose, i-hydroxypropyl cellulose, kanye ne-carboxyborkylllose, kanye ne-carboxyboxyl cellulose, ngalinye linezici eziyingqayizivele. Izicelo ze-cellulose izithathekiswa ezimbonini ezinjengokwakha, amakhamishini, ukudla, izimonyo, nokunakekelwa komuntu siqu, ukugqamisa indima yazo ebaluleke kakhulu ekukhiqizweni komkhiqizo nezinqubo zokukhiqiza. Ekugcineni, ukubaluleka kwezithambekela ze-cellulose emikhungweni yezimboni zanamuhla kuyagcizelelwa, kanye namathemba esikhathi esizayo kanye nentuthuko engaba khona eCellulose Ether Technology.

I-Cellulose Afers imelela isigaba sama-polymers asuselwa ku-cellulose, i-biquiquitous biopolymer etholakala kakhulu ezindongeni zeseli zezitshalo. Ngezakhiwo ezihlukile ze-physicochemical, izithambiso ze-cellulose zisetshenziswa kabanzi kwizimboni ezahlukahlukene, ngokuyinhloko umphumela wazo wokuqina. Amandla we-cellulose izindlebe ukukhulisa i-viscosity futhi athuthukise ama-heheloological izakhiwo abenze babaluleke kakhulu ezinhlelweni eziningi ezisukela ezintweni zokwakha eziya ezakhiweni zokwakha.

Izakhiwo ze-1.Structural ze-cellulose afes

Ngaphambi kokukhetha emphumeleni wokuqina we-cellulose afesther, kubalulekile ukuqonda izakhiwo zabo zesakhiwo. I-Cellulose Afers ihlelwe ngokuguqulwa kwamakhemikhali kwe-cellulose, ikakhulukazi ebandakanya ukusabela kokusheshisa. Amaqembu e-Hydroxyl (-OH) Akhona emgogodleni we-cellulose angena esikhundleni sokushintshana ngamaqembu ether (-OR), lapho r kumelela khona abahlukahlukene. Lokhu kufakazelwa kuholela ekushintsheni kwesakhiwo samangqamuzana kanye nezakhiwo ze-cellulose, edlulisela izici ezihlukile ku-cellulose afes.

Ukuguqulwa kwesakhiwo eCellulose Talers kuthonya i-solubility yabo, ukuziphatha kwe-rheological, kanye nezakhiwo zokuqina. Izinga lokufaka esikhundleni (DS), elisho inani eliphakathi lamaqembu afakwa esikhundleni se-hydroxlucose uphiko lwe-anhydroglucose. I-DS ephakeme ngokuvamile ihlangana ngokulekelela kwe-soubelity kanye nokuqina kokuqina.

2.Mananisms of incike umphumela

Umphumela wokuqina oboniswa yi-cellulose afers uvela ekuxhumaneni kwabo nama-molecule wamanzi. Lapho ehlakazeka emanzini, i-cellulose i-tefers ebhekene ne-hydration, lapho ama-molecule wamanzi akha ama-hydrogen ama-athomu namaqembu we-hydroxyl wamaketanga we-polymer. Le nqubo ye-hydration iholela ekuvuvukeni kwezinhlayiya ze-cellulose ether kanye nokwakhiwa kwesakhiwo senethiwekhi enezici ezintathu esilinganiselwe esimisweni samanzi.

Ukufakwa kwamaketanga we-cellulose etrulose e-cellulose kanye nokwakhiwa kwezibopho ze-hydrogen phakathi kwama-polymer molecule kufaka isandla ekuthuthukisweni kwe-viscosity. Ngaphezu kwalokho, ukukhishwa kwe-electrostatic phakathi kwamaqembu athelwe kabi aqhubeka nokuqina ngokuvimbela ukupakishwa okusondele kwamaketanga we-polymer nokukhuthaza ukusakazwa kwi-solvent.

Ukuziphatha kwe-bherlogical of cellulose etr Solutions kuthonywa yizinto ezifana nokuhlushwa kwe-polymer, izinga lokufakwa esikhundleni, isisindo se-molecular, kanye nokushisa. Ngokugxila okuphansi, ama-cellulose etr Solutions akhombisa ukusebenza kweNewtonian, kanti lapho kugxilwe kakhulu, abonisa indlela yokuziphatha ethambile ye-Pseudoplastic noma ukuncipha ngenxa yokuphazamiseka kwama-polymer ancy.

3.Ama-3.TYPEPS of Cellulose Afers
I-Cellulose Tapholopa uhla oluhlukahlukene lokutholwa, okuhlinzeka ngezakhiwo ezikhethekile ezikhethekile ezilungele izinhlelo ezahlukahlukene. Ezinye izinhlobo ezisetshenziswa kakhulu ze-cellulose afers zifaka:

I-Methyl Cellulose (MC): I-methyl cellulose itholakala ngokuthezeka kwe-cellulose ngamaqembu we-methyl. Kuyancibilika emanzini abandayo futhi kwakhiwa obala, izixazululo ezibonakalayo. I-MC ibonisa izakhiwo ezinhle kakhulu zokugcina amanzi futhi ivame ukusetshenziswa njengomuntu omkhulu wezinto zokwakha, ukumboza kanye nemikhiqizo yokudla.

IHydroxYethyl Cellulose (HEC): IHydroxYethyl cellulose iyi-Synthesi

I-ZED ngokwethula amaqembu we-hydroxyethyl e-cellulose backbone. Kuyancibilika kuwo womabili amanzi abandayo nawashisayo futhi kukhombisa ukuziphatha kwe-pseudoplastic. I-HEC isetshenziswa kabanzi ekwakhiweni kwemithi, imikhiqizo yokunakekelwa komuntu siqu, kanye nesikhudlwana kumapende we-latex.

I-Hydroxypropylllulose (HPC): I-Hydroxypropyllllls ilungiselelwe ngokuthezeka kwe-cellulose ngamaqembu we-hydroxypropyl. Kuyancibilika ekwanshweni okuhlukahlukene kwe-solvents, kufaka phakathi amanzi, utshwala, kanye nezinto eziphilayo. I-HPC ivame ukuqashwa njengesikhudlwana, i-Binder, ne-ejenti eyakha amafilimu emithi yezemithi, izimonyo kanye nezimbobo.

I-Carboxymethyl Cellulose (CMC): I-Carboxymethyl cellulose ikhiqizwa yi-carboxmethylity ye-cellulose nge-chloroopetic acid noma usawoti wayo we-sodium. Kuyancibilika kakhulu emanzini kanye namafomu e-viscous solutions ngokuziphatha okuhle kwe-pseudoplastic. I-CMC ithola izinhlelo zokusebenza ezibanzi emikhiqizweni yokudla, amakhambi, izindwangu kanye nokukhiqiza amaphepha.

Lokhu kubuthana ama-cellulose

4.Izicelo ze-cellulose afers
Izakhiwo eziguquguqukayo eziguquguqukayo ze-cellulose afers zibanikeza zibaluleke kakhulu kwizicelo ezahlukahlukene zezimboni. Ezinye izinhlelo ezibalulekile ze-cellulose afers zifaka:

Izinto zokwakha: Izimpi ze-Cellulose zisetshenziswa kabanzi njengezengezo ezintweni ezisetshenziswayo zikasimende ezifana nodaka, i-grout, nodaka ukwenza ngcono ukusebenza, ukugcinwa kwamanzi kanye nokunamathela. Benza njengokuguqulwa kwe-REOlogy, ukuvimbela ukuhlukaniswa kanye nokwenza ngcono ukusebenza kwemikhiqizo yokwakha.

Ama-Pharmaceuticals: Abathengisi beCellulose bathola izicelo ezibanzi ekwakhiweni kwemithi njengezihlanganisi, ukuqhekeka, kanye nama-ejenti wokuqina ezibhebheni, amaphilisi, ukumiswa kanye nezixazululo ze-ophthalmic. Bathuthukisa izindawo zokugeleza kwamapode, bagqugquzele ukucindezelwa kwethebhulethi, futhi balawule ukukhishwa kwezithako ezisebenzayo.

Imikhiqizo yokudla: Izimpikiswano zeCellulose zivame ukuqashwa njengezinzayo, ezinzileyo, kanye nama-ejenti ama-gelling emikhiqizweni ehlukahlukene yokudla, kufaka phakathi amasoso, ukugqoka, ama-dessert, nemikhiqizo yobisi. Bathuthukisa ukuthungwa, ukubonakala, kanye nomlomo ngenkathi kuthuthukiswa ukuqina kweshalofu futhi kuvikele i-pernesis.

Izimonyo kanye nokunakekelwa komuntu siqu: Izimpikiswano ze-cellulose zisetshenziselwa izimonyo kanye nemikhiqizo yokunakekelwa komuntu siqu efana nokhilimu, ama-lotion, ama-shampoos kanye nezinyo lamazinyo njengabakhulu, ama-emulsifiers, kanye nama-ejenti akha amafilimu. Banikeza izakhiwo ezithandekayo ze-heological, bathuthukise ukuqina komkhiqizo, futhi banikeze ukuthungwa okubushelelezi, okunethezeka.

Amapende nezimbobo:I-Cellulose AfersKhonza njengemishini ye-RHEOOLBOLY ku-Paints, embonweni, kanye nezinamathela, ukuthuthukisa ukulawulwa kwe-viscosity, ukumelana kwe-SAG, kanye nokwakheka kwefilimu. Bafaka isandla ekujuzekeni kokwakheka, ukuvimbela ukuxazulula izingulube, futhi kuthuthukise izakhiwo zohlelo lokusebenza.

Umphumela wokuqina we-cellulose 'tallers udlala indima ebalulekile ezinqumweni ezahlukahlukene zezimboni kanye nokwakhiwa komkhiqizo. Izakhiwo zazo ezingqayizivele ze-rheological, ukuhambisana nezinye izithako, kanye ne-biodeGreatiobilibility kubenze bakhethe izinketho zabakhiqizi kuyo yonke imikhakha ehlukahlukene. Njengoba izimboni ziqhubeka nokubeka phambili ukuqina kanye nezixazululo ze-eco-friendly, isidingo sezithathela ze-cellulose kulindeleke ukuthi sikhuphuke ngokwengeziwe.