1. Basa guru re cellulose ether
Mune yakagadzirira-yakavhenganiswa mother, cellulose ether inonyanya kuwedzeredzwa iyo inowedzerwa mune yakaderera mari asi inogona kuvandudza zvakanyanya kuita kwekuita kwemutema uye kukanganisa basa rekuvaka.
2. Mhando dze cellulose ana
Kugadzirwa kweCellulose ether kunonyanya kugadzirwa mafambiro echisikigo kuburikidza neAlkali kupaza, kugadzira maitiro (ekushongedza), kugeza, kuomesa uye mamwe maitiro.
Zvinoenderana neyenzvimbo huru yemidziyo, mafaira echisikigo anogona kukamurwa mu: Cotton fiber, cedar fiber, beech madhigirii ePolymersiazation inosiyana, iyo inokanganisa visikoka yezvigadzirwa zvavo. Parizvino, major Cellulose Vagadziri vanoshandisa machira fiber (ne-chigadzirwa che nitrocellose) seyakakura zvinhu zvekushandisa.
Cellulose etana inogona kukamurwa kuita ionic uye nonitic. Rudzi rweIonic runonyanya kusanganisira carboxym cellemunta cellever, uye iyo isiri-ionic mhando inonyanya kusanganisira methyl cellereth (proyl) cellulose, hydroxethlosel cellulose, nezvimwe.
Parizvino, iyo cellulose ether inoshandiswa mumutero wakabatanidzwa inonyanya kuvezwa metherloseTHEL (MHPG), hydroxyprosl methelose ether (hpmc). Mune yakagadzirira-yakavhenganiswa moter, nekuti ionic cellulose (CarboxyMethyl cellemeness Mune dzimwe nzvimbo kuChina, Carboboymethyl Cellery munyu unoshandiswa seyakagadzirwa kune mamwe zvigadzirwa zvemukati zvakagadziriswa nechimiro chekusimbisa seyakagadziriswa uye Shuangfei poda. Ichi chigadzirwa chinowanzoitika kune nyoro uye hazvirambe kumvura, uye zvino wave kuderedzwa. HydroxytHyl Cellulose inoshandiswawo mune zvimwe zvigadzirwa zvakagadzirira-musanganiswa, asi ine chidiki diki chemusika.
3. Main performance zviratidzo zve cellulose ether
(1) Solubility
Cellulose is polyhydroxy polymer inowanzoitika kuti hapana mbichana kana kunyungudika. Mushure mekutsausa, cellulose inoshatisa mumvura, Dilute Alkali solution uye organic solvent, uye ine thermoplastication. Solubility inonyanya kuenderana nezvikamu zvina: kutanga, solubility inosiyana neViscosity, iyo yakaderera viscosity, iyo yakakura solubility. Chechipiri, hunhu hwemapoka mapoka akaunzwa nenzira yekutsika, iyo boka racho rakazunza, iyo yakaderera solubility; Iyo yakawanda polar iyo boka rakaunzwa, zviri nyore cellulose ether kudzungudza mumvura. Yetatu, iyo degree rekutsiva uye kugoverwa kwemapoka edzitsiniro mumacoromolecules. Vazhinji cuculose etana vanogona chete kunyungudika mumvura pasi peimwe degree rekutsiva. Chechina, iyo degree rePolymerization ye cellulose ether, yakakwira iyo mwero wePolmerization, isinganyanyoka; Iyo yakaderera iyo degree rePolymerization, iyo yakawedzera huwandu hwenongedzo yekutsiva inogona kunyimwa mumvura.
(2) Kuchengeta mvura
Kuchengetwa kwemvura kukosha kwekuita cellulose ether, uye zvakare chiitiko icho vazhinji veimba vakaomeswa emagadziri, kunyanya avo vari munzvimbo dzekumaodzanyemba vane tembiricha dzakakwirira, teerera. Zvinhu zvinokonzeresa kudzokorora kwemvura kwerudzi rwemberi zvinosanganisira huwandu hwemaserulose ether yakawedzerwa, viscossity, tenga pubeness uye tembiricha yenzvimbo yekushandisa. Iyo yakakwira huwandu hwe cellulose ether yakawedzerwa, zvirinani kuchengetedza kwemvura; iyo yakakura viscosity, zvirinani kuchengetedza mvura; iyo yakanaka zvidimbu, zviri nani kudzokorora kwemvura.
(3) viscosity
Viscosity inzvimbo yakakosha paramende ye cellulose ether zvigadzirwa. Parizvino, akasiyana cellulose ether Vagadziri vanoshandisa nzira dzakasiyana uye zviridzwa kuyera viscosity. Nezve chigadzirwa chimwe chete, iwo mavhisipa anowana nzira dzakasiyana dzakasiyana-siyana dzakasiyana, uye vamwe vakatove misiyano yakawedzera kaviri. Naizvozvo, patinofananidza viscosity, chinofanira kuitwa pakati penzira dzakafanana bvunzo, kusanganisira tembiricha, rotrist, nezvimwe.
Kazhinji, iyo yepamusoro viscosity, iri nani kuchengetedza kwemvura. Nekudaro, yepamusoro iyo viscosity, yakakwira iyo smecular uremu hwe cellulose ether, uye kuderera kunoenderana mukushushikana kwayo kunokanganisa kusimba uye kwekuvaka kwesimba. Yakakwira iyo viscosity, zvakanyatsojeka zvinokanganisa mudhaka, asi haina hukama zvakananga. Iyo yepamusoro viscosity, iyo yakawanda viscous iyo dari yakanyorova ichave. Munguva yekuvakwa, inoratidzwa sekunamatira kune iyo scriper uye yakanyanya kuderera kune substrate. Asi hazvibatsiri kuwedzera simba rekuumbwa kweiyo yakanyorova dhaka pacharo. Munguva yekuvaka, kuita kwekurwisa-sag hakusi pachena. Pane kusapindirana, imwe yepakati uye yakaderera viscosity asi yakagadziridzwa methyl cellal celler maserimita kuita mukuvandudza simba rerudzi rwemutengesi.
(4) iyo yakajeka yezvikamu:
Iyo cellulose ether inoshandiswa kugadzirira-yakasanganiswa mhou Iyo fineess inobata iyo solubility ye cellulose ether. Coarse Cellulose ana vana kazhinji mune iyo magirazi, zviri nyore kupararira uye nekunyungudika mumvura pasina kuora, saka ivo havana kufanira kuti vashandiswe (zvimwe zvigadzirwa zvakakanganiswa Hazvisi nyore kuparadzira nekunyungudza mumvura, uye procencess caking). Mune yakagadzirira-yakavhenganiswa muter, cellulose ether inopararira pakati pekuunganidza, mafirita akanaka uye simende uye zvimwe zvekumisikidza. Chete yakanaka yakakwana poda inogona kudzivirira cellulose ether agglomeration kana kusanganisa nemvura. Kana cellulose ether inowedzerwa nemvura kuti azungunuke akaomarara, zvakaoma kwazvo kuparadzira nekunyungudika.
(5) kugadziridzwa kwe cellulose ether
Kugadziridzwa kwe cellulose ether ndiko kuwedzera kwekushanda kwayo, uye ndicho chikamu chakakosha kwazvo. Zvivakwa zve cellulose ether zvinogona kuvandudzwa kuti uwedzere kunyatsoita kuti kuve kwakanyanyisa, kufararira, kudzikisira, kudzokorora kwemvura uye kusakwana kwemafirimu kune mafuta.
4. Mhedzisiro yeAmbient tembiricha pakuchengetwa kwemvura yekuchengetedza
Kuchengetwa kwemvura kwe cellulose theri kuderera nekuwedzera kwekushisa. Mune zvinoshanda zvekushandisa zvekushandisa, mongwe inowanzoshandiswa kune inopisa substrate pakupisa kupisa (yakakwirira kupfuura 40 ° C) munzvimbo dzakawanda. Kudonha kwemvura mukuchengetwa kwemvura kwakakonzera kukanganisa kunooneka pakubata uye kupenga kuramba. Kuvimba kwaro pamusoro pekushisa kuchiri kutungamira mukushayikwa kwezvinhu zvemukati, uye zvinonyanya kutsoropodza kuderedza pesvedzero yezvinhu tembiricha pasi pemamiriro ezvinhu aya. Dementar Reces yakagadziriswa nenzira kwayo, uye shanduko dzakawanda dzakakosha dzakaitwa mumwaka mwaka. Kunyangwe ichiwedzera iyo dosage (zhizha formula), kushandira uye kupaza kurwisa hakugone kurapwa kwemasero ether, etc., kuitira kuti mvura ive yavo inogona inowanikwa pakudziya kwakanyanya. Inokuchengetedza zviri nani kana yakakwira, kuti ipe zviitwe zviri nani mumamiriro ezvinhu ane hutsinye.
5. Chikumbiro mumutengesi wakagadzirira-wakasanganiswa
Mune yakagadzirira-yakavhenganiswa mhodzi, cellulose ether inoita basa rekuchengeta mvura, kurira uye kugadzirisa maitiro ekuvaka. Kurovera kwemvura Kurovera kunovhenekera kuti dhaka harizokonzeresa sanding, hupfu uye kuderedzwa simba nekuda kwekushomeka kwemvura uye zvisina kukwana hydration. Iko kukonzeresa mhedzisiro inosimbisa kwazvo simba rekusimbisa kweiyo yakanyorova dhiri. Kuwedzera kwe cellulose ether kunogona kunatsiridza zvakanyanya viscosity yekunyoroveswa kwegurini, uye ine viscosity yakasiyana-siyana, nokudaro ichivandudza mashandiro emadziro ekunyorovera uye kuderedza marara. Uye zvakare, basa remheremellose ether mune zvakasiyana zvigadzirwa zvakare zvakasiyana. Semuenzaniso, mumatehwe ehembe, cellulose ether anogona kuwedzera nguva yekutanga uye gadzirisa nguva; Mune muchimiro chekupfira, chinogona kuvandudza simba rekuumbwa kwemvura ine mvura; Mukuzvimirira, zvinogona kudzivirira kugadzirisa, kusarongeka uye kugadzikana. Naizvozvo, seyakakosha anonyanya kukosha, cellulose ether inoshandiswa zvakanyanya mune yakaoma powder dope.
Kutumira Nguva: Jan-11-2023