Cellulose ether ndeye organic compound ine basa rakanakisa, iro rinoshandiswa zvakanyanya mumunda wezvivakwa zvekuvaka, kunyanya mugadziriro yegadziriro yemadziro putty uye yemukati uye yekunze madziro putty. Iyo haigone chete zvinobudirira kuvandudza kuita kwekuvaka kwe putty, asi zvakare kuvandudza kusimba uye simba re putty mushure mekushandisa.
1. Muchidimbu nezve cellulose ether
Cellulose ether ikirasi yemvura-inonyungudika kana mvura-inopararira polymer komisheni inoumbwa nekugadziriswa kwekemikari kunoenderana nekwakasikwa cellulose. Common cellulose ethers dzinosanganisira hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), etc. Aya cellulose ethers ane thickening yakanaka, kuchengetedza mvura, lubrication, film-forming nezvimwe zvinhu, saka anoshandiswa zvakanyanya pakuvaka. zvinhu.
2. Basa re cellulose ether mu putty
Kuvandudza kushanda kwekuvaka kweputty
Cellulose ether inovandudza rheological properties ye putty, kuitira kuti kushanda uye kuenzanisa zvinhu zveputty zvinogona kuvandudzwa, zvichiita kuti zvive nyore kuisa uye chiyero. Kunyanya mukuvaka kwakakura, iyo yakakora pfuma ye cellulose ether inogona kuita kuti putty inamire zvirinani kumadziro, kuderedza kuderera, uye kuve nechokwadi kugadzikana kwemhando yekuvaka.
Kuvandudza kuchengetedza kwemvura
Iyo putty layer inoda kuchengetedza imwe nzvimbo yakanyorova panguva yekuvaka kuti ive nechokwadi chekufanana uye kunamatira kweinotevera kuomesa maitiro. Cellulose ether molecules inogona kutora yakawanda yemvura uye inogadzira mvura molecule network mu putty, inonotsa kuderera kwehuwandu hwekubuda kwemvura yeputty, nokudaro kuvandudza zvakanyanya kuchengetwa kwemvura kweputty. Uku kuchengetwa kwemvura kunoita kuti putty isanyanya kutsemuka kana hupfu kana ichivakwa pasi pekushisa kwepamusoro kana mamiriro akaoma, kuwedzera nguva yekuvaka yakavhurika uye kuve nechokwadi chemhando yeputty layer.
Wedzera kusimba kwechisungo
Kuwedzera zvinyorwa zve cellulose ether zvinogona kuvandudza kusungirirwa kweputty uye kuve nechokwadi kuti iyo putty yakanyatsobatanidzwa pamusoro pechigadziko. Kana iyo putty ikaiswa, cellulose ether haingogone kuwedzera kuoma kweiyo putty, asiwo inopa imwe dhigirii yekunamatira panguva yekuomeswa kwekuita kudzivirira iyo putty layer kubva pakudonha kana kuputika. Izvi zvinonyanya kukosha kune dzakapfava nzvimbo uye dzisiri-absorbent mabhesi nekuti cellulose ether inopa yakawedzera adhesion properties.
Dzora kumhanya kwekuomesa
Cellulose ether inogona kugadzirisa kukurumidza kuomeswa kweputty kuitira kuti putty layer iome zvakaenzana, nekudaro zvinobudirira kudzivirira kuputika kunokonzerwa nekukurumidza kurasikirwa kwemvura pamusoro. Pakuvaka kweakawanda-layer putty, iyo yakakodzera kuomesa kumhanya inonyanya kukosha, iyo inobatsira kuve nechokwadi chekunamatira pakati pematanho uye mhedzisiro yese.
Kuvandudza anti-sagging performance
Mumadziro akamira kana sirin'i, putty inobatwa zviri nyore negiravhiti uye ine matambudziko ekudonha uye kudonha. Iko kukora mhedzisiro ye cellulose ether inogona zvinobudirira kuvandudza viscosity uye kugadzikana kweputty, kudzivirira izvo zvinhu kubva pakutsvedza nekuda kwegiravhiti, uye kuve nechokwadi chekugovera kwakafanana kweputty.
3. Mhando huru uye kusarudzwa kwe cellulose ethers
Mhando dzakasiyana dze cellulose ethers dzine mhedzisiro dzakasiyana mu putty, uye zvakakosha kwazvo kusarudza mhando yakakodzera ye cellulose ether. Izvi zvinotevera akati wandei anowanzo shandiswa cellulose ethers uye maitiro avo:
Hydroxypropyl methylcellulose (HPMC): Iine kukora kwakanaka, kuchengetedza mvura uye kugadzira firimu uye inoshandiswa zvakanyanya mukuvaka putty. HPMC inogona kuvandudza zvakanyanya kuvaka uye firimu-kugadzira zvimiro zveputty, kuita kuti putty ipfave kana yaiswa, uye kuvandudza kunamatira uye kutsetseka kweputty.
Hydroxyethyl cellulose (HEC): Inonyanya kushandiswa mumvura-based systems, ine yakanaka thickening uye rheology control simba, uye inowanzoshandiswa mukati memadziro putty uye mvura-based coatings. HEC ine yakakosha yekuvandudza mhedzisiro pakuyerwa kweiyo putty, asi kuchengetwa kwayo kwemvura kwakaderera zvishoma kune HPMC.
Hydroxypropyl cellulose (HPC): HPC ine viscosity yakakwira uye kugadzikana kwakanyanya, uye inokodzera zviitiko zvine zvakakwirira zvinodikanwa zveanti-sagging. Kuwedzera huwandu hwakakodzera hweHPC kune putty kunogona kuvandudza zvakanyanya anti-sagging kuita uye simba re putty.
4. Zvakanakira kushandisa uye tarisiro yemusika ye cellulose ethers
Mabhenefiti ekushandisa kwe cellulose ethers mu putty akakosha, anonyanya kuratidzwa mune zvinotevera zvinhu:
Kuchengetedza mari: Cellulose ethers inogona kuvandudza kushanda kwe putty, kuderedza nhamba yezvekugadzirisa, uye nokudaro kuderedza zvinhu uye mari yevashandi.
Kudzivirirwa kwezvakatipoteredza: Cellulose ethers zvinhu zvechisikigo zvakagadzirwa kubva kune zvinogonekazve, zvine kuchengetedzwa kwakanaka kwezvakatipoteredza, zvisina chepfu kumuviri wemunhu, uye kubatsira kusangana nezvinodiwa zvemazuva ano zvekuvaka zvegirinhi kuchengetedzwa kwezvakatipoteredza.
Chinja kumamiriro ekunze akasiyana-siyana: Kuchengetedzwa kwemvura uye kusagadzikana kwekutsemuka kwe cellulose ethers kunoita kuti ive yakakodzera kuvakwa pasi pemamiriro ekunze akasiyana-siyana, kusangana nezvinodiwa zvenzvimbo dzakasiyana dzekuvaka dzakadai sekuchamhembe kwakaoma uye kunyorova kumaodzanyemba.
Tarisiro yakanaka yemusika: Nekuvandudzwa kwezvivakwa zvakasvibirira uye kuwedzera kuri kudiwa kwezvinhu zvekuvaka zvemhando yepamusoro, kudiwa kwemusika we cellulose ethers sezvinowedzera zvakakosha zvakawedzera gore negore. Kunyanya muindasitiri yekushongedza, zvinodikanwa zvemadziro flatness uye runako rwepamusoro zvakagadziridzwa, izvo zvakawedzera nzvimbo yekusimudzira ye putty zvigadzirwa. Cellulose ether semodhifita ichava netarisiro huru yekushandisa.
5. Chengetedzo ye cellulose ether mu putty application
Kunyangwe cellulose ether ine akawanda mabhenefiti mu putty, zvinotevera mapoinzi anofanirwa kucherechedzwa mukuita chaiko kwekushandisa:
Dosage control: Kuwedzera kwekuwedzera kwe cellulose ether kunotungamira kune yakawandisa viscosity ye putty uye kukanganisa danho rekuvaka. Naizvozvo, huwandu hweselulosi ether hwakawedzerwa mune putty formula inoda kudzorwa zvine musoro kuti ive nechokwadi chekuita kwekuvaka kwakanakisa.
Uniform dispersion: Kupararira kwe cellulose ether mu putty kuchakanganisa mhedzisiro yayo. Kuti udzivise kuunganidzwa kwe cellulose ether, zvinodikanwa kutora nzira dzakakodzera dzekukurudzira paunenge uchigadzira putty kuona kuti yakapararira zvakaenzana muchikamu chemvura.
Kupindirana nezvimwe zvinowedzera: Putty formulas inowanzova nezvimwe zvinowedzera, senge redispersible latex powder, fillers, etc. Kuenderana kwe cellulose ether neizvi zvinowedzera zvinokanganisa kushanda kweputty, saka kupindirana pakati pezvakasiyana-siyana kunofanira kutariswa zvizere pakugadzira. formula.
Iko kushandiswa kwe cellulose ether mumadziro putty uye putty haingogadzirisi kuvaka uye kushandiswa kweiyo putty, asi zvakare inowedzera hupenyu hwesevhisi yeputty uye inoderedza matambudziko emhando anokonzerwa nekuvakwa kusina kunaka. Nekuwedzera kuri kuramba kuchiwedzera kwemusika wegirinhi chivakwa uye chekushongedza zvinhu, cellulose ether, seyakagadzikana uye inoshanda yekuwedzera yekuvaka, ine yakakura tarisiro yekushandisa. Mukugadzirwa kweputty formula, sarudzo inonzwisisika uye kushandiswa kwe cellulose ether inogona kupa yakanyanya kunaka flatness uye kusimba kwekuvaka madziro, nekudaro kusangana nemamiriro ekunze akasiyana emamiriro ekunze uye zvinodiwa zvekuvaka, nekupa vimbiso dzakasimba dzekusimudzirwa kwemhando yepamusoro yezvivakwa zvemazuva ano.
Nguva yekutumira: Nov-05-2024