Cellulose ethers imhando yepolymer compound inogadzirwa nekemikari inogadzirisa cellulose chaiyo. Iwo ane akasiyana emuviri uye makemikari zvimiro uye anoshandiswa zvakanyanya muakasiyana anonamira. Nekuda kwehunhu hwakanakisa hwe cellulose ether, kushandiswa kwayo mukunamira hakungogadzirise kusungirirwa kwechigadzirwa, asiwo kunounza nhevedzano yekuvandudza senge kugadzikana, kukora, kuchengetedza mvura, uye lubricity.
1. Kukora mhedzisiro
Rimwe remabasa ekutanga e-cellulose ethers kukora, izvo zvinoita kuti zvive zvakakosha zvakanyanya mumvura-based adhesive systems. Iyo viscosity yeadhesive yakakosha pakuita kwayo kwekushandisa, uye cellulose ethers inogona kuwedzera zvakanyanya viscosity yekunamira nekugadzira yunifomu yemamorekuru network. Cellulose ethers yakadai sehydroxypropyl methylcellulose (HPMC) uye hydroxyethyl cellulose (HEC) ine migumisiro yakanaka yekukora, uye maitiro avo ekukora anogona kugadziriswa nekuchinja kwehuremu hwema molecular, dhigirii yekutsiva uye zvimwe zvinhu. Iyo yakakora inonamira haingogonese kukoira, asi zvakare inokwidziridza simba rekubatanidza, ichiita kuti ishandiswe zvakanyanya mukunamira kwekuvaka, mapepa echigadzirwa anonamira, nezvimwe.
2. Ipa mvura kuchengetedza
Kuchengeta mvura nderimwe basa rakakosha re cellulose ethers mune adhesives. Cellulose ethers inonyanya kukodzera kune mvura-based adhesives, iyo inogona kunyatsochengetedza unyoro uye kudzivirira iyo colloid kubva pakuoma nekukurumidza. Izvi zvinonyanya kukosha kune nharaunda umo unyoro hunoputika nekukurumidza. Semuyenzaniso, mune simende-yakavakirwa kana gypsum-based adhesives muindasitiri yekuvaka, cellulose ethers inogona kutora mvura, kuwedzera uye kugadzira hydration firimu, kuwedzera nguva yekushanda yekunamatira uye kuve nechokwadi chekuchengetedza panguva yekuvaka mabasa. Bonding properties haisi kuderedzwa nekuoma nguva isati yakwana. Ichi chimiro chinoshandawo kune nzvimbo dzakaita semadziro pendi uye mataira anonamira ayo anoda kudzora kubuda kwemvura.
3. Kuvandudza kusungirirwa uye kunamatira zvinhu
Kuwedzerwa kwe cellulose ether hakugone chete kuomesa uye kuchengetedza mvura, asiwo zvinobudirira kuvandudza simba rekunamatira rekunamatira. Mapoka anoshanda senge hydroxyl uye ether zvisungo mune ayo mamorekuru magadzirirwo anogona kuumba hydrogen zvisungo uye kumwe kupindirana kwemuviri uye kemikari nepamusoro peiyo adherend, nekudaro kunowedzera kunamira kwekunamatira. Izvi zvinoita kuti cellulose ethers zvive zvakanaka mukubatanidza bepa, huni, ceramics nezvimwe zvinhu. Iko kuita kwakasiyana-siyana kwe cellulose ethers kunopa iyo inonamira zvirinani kunamatira uye nyore kuvaka, ichibvumira kuti ishandise yakanakisa yekubatanidza zvivakwa pane akasiyana ma substrates.
4. Kuvandudza kugadzikana uye slip resistance
Mukuvaka glues kana mamwe ma-high-viscosity adhesives, cellulose ethers inogona zvakare kuvandudza kutsvedza kuramba kwehurongwa. Cellulose ether inogona kuumba hurongwa hwemambure mubhainda, ichidzikamisa kuyerera kwebhainda, kuitira kuti bhainda rakaputirwa richengetedze fomu rakagadzikana uye rirege kutsvedza nekuda kwegiravhiti kana zvinhu zvekunze, kunyanya Inonyanya kukosha munzvimbo dzekuvaka dzakadai sekuisa mataira. . Uye zvakare, cellulose ether inogona zvakare kupa iyo inonamira yakanaka anti-kugadzirisa zvivakwa, kudzivirira delamination panguva yekuchengetedza uye kushandiswa, uye kuve nechokwadi chekufanana uye kushanda kwenguva refu kweanonamatira.
5. Kuvandudza kushanda kwekuvaka
Cellulose ether ine yakanakisa lubricity uye dispersibility, iyo inovandudza zvakanyanya kushanda kwayo mumanamira. Adhesives anoshandisa cellulose ether haisi nyore kushandisa chete, asi inogonawo kuumba yakatsetseka uye yunifomu yekunamatira layer pasina kuwedzera ukobvu, kuderedza tambo panguva yekuvaka nekuvandudza ruzivo rwemushandisi. Panguva imwecheteyo, kushandiswa kwe cellulose ether kunogonawo kuderedza zvinobudirira shrinkage yekunamatira, kuderedza kuputika kana kuputika matambudziko mushure mekuputira, nekuvandudza kugadzikana uye kusimba kwechisungo chekubatanidza.
6. Wedzera kupikisa kune chando-thaw cycles
Mune dzimwe nzvimbo dzakakosha dzekushandisa, zvinonamira zvinoda kutenderera akawanda echando-thaw, sekuvaka kunze, chekufambisa uye mamwe minda. Cellulose ether ine yakanakisa chando-thaw kuramba, iyo inogona kuchengetedza kugadzikana kweanonamira pasi peyakadzika tembiricha mamiriro uye kudzivirira iyo inonamira kubva pakukuvadzwa panguva yechando-inonyungudika. Kuburikidza neyakagadzika mamorekuru chimiro, cellulose ether inogona kuchengetedza inonamira yekubatanidza zvimiro kunyangwe tembiricha shanduko, zvichiita kuti ivimbike pasi pemamiriro ekunze akanyanya. Izvi zvinonyanya kukosha kune adhesive masisitimu anoda kwenguva refu yekunze kuratidzwa.
7. Ipa kuchengetedzwa kwezvakatipoteredza
Sezvinobva kune zvakasikwa cellulose, cellulose ethers ine yakanakisa biodegradability uye kuchengetedza kwezvakatipoteredza. Kusiyana nema polymers ekugadzira, cellulose ethers inotorwa kubva kune zvinogonekazve zviwanikwa uye haizokonzere kusvibiswa kwakakomba kunharaunda mushure mekushandiswa. Pamusoro pezvo, cellulose ethers ine yakaderera emissions yevolatile organic compounds (VOC) panguva yekugadzira nekushandisa, uye inoteerana nezvinodiwa zvemazuva ano mitemo yezvakatipoteredza. Naizvozvo, mukugadzira dhizaini yekunamira kwezvakatipoteredza, cellulose ethers zvishoma nezvishoma zvave zvakanakira thickeners uye zvinonamira. Binder mbishi zvinhu.
8. Yakasiyana-siyana yekushandisa
Nekuda kwekusiyana-siyana kwavo, cellulose ethers vanoita basa rakakosha mukunamira kwekushandisa mumaindasitiri akawanda. Chekutanga pane zvese, mumunda wekuvaka, cellulose ethers anoshandiswa zvakanyanya musimende-based uye gypsum-based adhesives kupa yakanakisa kuvaka kwekuvaka uye kusimba kwekubatanidza. Mukuwedzera, cellulose ethers inoshandiswawo mukurongedza uye mapepa ezvigadzirwa glues. Kuchengeta kwavo mvura uye kukora zvivakwa zvinobudirira kuvandudza hukama hwekubatana uye kusimba kwepepa. Cellulose ethers inoshandiswawo mune yekurapa glue, chikafu chekudya uye mamwe minda. Nekuda kweiyo isiri-chepfu, isinganhuwi uye yakagadzikana zvivakwa, inosangana nezvinodiwa zvakasimba zvekunamira muminda iyi.
Sechinhu chinoshanda chepolymer zvinhu, cellulose ether ine tarisiro yakakura yekushandisa mune zvinonamira. Inonatsiridza zvakanyanya mashandiro ezvinonamira uye inosangana nezvinodiwa zvemhando yepamusoro-soro muindasitiri yemazuva ano uye minda yekuvaka kuburikidza neakatevedzana emabasa akadai sekukora, kuchengetedza mvura, kunatsiridza kunamatira, kuwedzera kugadzikana, nekuvandudza kushanda. Nekuenderera mberi kwekufambira mberi kwesainzi uye tekinoroji uye kuwedzera kwevanhu zvinodiwa pakuchengetedzwa kwezvakatipoteredza, basa rema cellulose ethers mumanamira richawedzera kukosha, uye tarisiro yekushandiswa kweramangwana ichave yakakura.
Nguva yekutumira: Sep-24-2024