Ma ether a cellulose ndi gulu la ma polima olemera kwambiri osungunuka m'madzi ochokera ku cellulose. Agwiritsidwa ntchito kwambiri mumakampani omanga ngati zosakaniza zowonjezera mphamvu pazinthu zopangidwa ndi simenti komanso zopangidwa ndi gypsum. Pakati pawo, hydroxypropyl methylcellulose (HPMC) ndi imodzi mwa ma ether a cellulose ofunikira kwambiri a putty.
Monga wopanga waluso wa HPMC, tidzakufotokozerani ntchito ya cellulose ether mu putty. Tikukhulupirira kuti positi iyi ipereka malangizo othandiza kwa iwo omwe ali ndi chidwi ndi nkhaniyi.
1. Kusunga madzi
Chimodzi mwa ntchito zazikulu za cellulose ether pa putty ndikusunga madzi. Putty ndi chinthu chonga phala chomwe chimagwiritsidwa ntchito kudzaza mipata ndi ming'alu pamalo monga makoma, denga ndi pansi. Madzi ndi chinthu chofunikira kwambiri mu mapangidwe a putty chifukwa chimathandiza kusungunula zosakaniza ndikupangitsa kuti zikhale zosavuta kugwira ntchito. Komabe, madzi ambiri angayambitse putty kuuma ndikuchepa mwachangu, zomwe zimapangitsa kuti isweke komanso kuti ikhale yotsika mtengo.
Cellulose ether, makamaka HPMC, imapanga kapangidwe kofanana ndi gel ikasakanizidwa ndi madzi, zomwe zingathandize kuti madzi a putty asungidwe bwino. Magulu a HPMC omwe amathira madzi amatha kuyamwa mamolekyu amadzi ndikuletsa kuti asatuluke mwachangu. Izi zimathandiza kuti ntchito ikhale yayitali komanso kuti putty ikhale yofanana.
2. Kupititsa patsogolo kugwira ntchito bwino
Ntchito ina yofunika kwambiri ya cellulose ether ya putty ndikuwonjezera kugwira ntchito kwake. Kugwira ntchito bwino kumatanthauza kuti putty imayikidwa mosavuta ndikuumbidwa kuti ipange malo osalala. Cellulose ether imatha kuwonjezera kusinthasintha ndi kufalikira kwa putty mwa kuchepetsa kukangana pakati pa tinthu tating'onoting'ono ndikuwonjezera mafuta m'dongosolo.
Kuwonjezera ma ether a cellulose ku ma putty kumachepetsanso kutsekeka kwa mpweya komwe kumachitika chifukwa cha kusakaniza, zomwe zingayambitse malo osafanana komanso kusagwirana bwino. Kugwiritsa ntchito ma ether a cellulose kumathandizira kuti putty ikhale yosalala komanso yogwirizana, zomwe zimapangitsa kuti ntchito yonse ikhale yabwino komanso kuti ikhale yokongola kwambiri.
3. Wonjezerani kumatirira
Ubwino wina wa cellulose ether wa putty ndi kuwonjezeka kwa kumatirira. Putty imagwiritsidwa ntchito kudzaza mipata ndi ming'alu, komanso kupanga malo osalala a utoto kapena zomaliza zina. Chifukwa chake, putty iyenera kukhala yokhoza kumamatira ku substrate ndikupereka mgwirizano wolimba.
Cellulose ether, makamaka HPMC, imatha kukonza kumatirira kwa putty popanga filimu pamwamba pa substrate. Filimuyi imawonjezera kukhudzana pakati pa putty ndi substrate ndipo imathandiza kudzaza zolakwika pamwamba. Izi zimapangitsa kuti pakhale mgwirizano wolimba komanso kutha kolimba.
4. Chepetsani kuchepa kwa mphamvu
Kuchepa kwa madzi ndi vuto lofala ndi putty, chifukwa ingayambitse kusweka ndi kutha kwabwino. Ma cellulose ethers angathandize kuchepetsa kuchepa kwa madzi mwa kukonza kusunga madzi ndi kugwira ntchito bwino kwa putty. Madzi amasanduka nthunzi pang'onopang'ono, zomwe zimapangitsa kuti putty ikhale yosalala yomwe imathandiza kupewa ming'alu ndi ming'alu kuti isapangike panthawi youma.
Kuphatikiza apo, cellulose ether imathanso kuchepetsa kuchepa kwa pulasitiki kwa putty, kutanthauza kuchepa komwe kumachitika panthawi yoyambira. Kapangidwe kameneka ndi kofunikira kwambiri pa putty yokhazikika mwachangu, chifukwa imathandiza kusunga umphumphu wa pamwamba ndikuletsa kupangika kwa ming'alu.
5. Kulimba kwabwino
Pomaliza, ma cellulose ether amatha kulimbitsa kulimba kwa putty mwa kuwonjezera kukana kwake ku zinthu zachilengedwe monga kusintha kwa kutentha, chinyezi ndi kusweka. Kapangidwe ka filimu ka cellulose ether kangapereke chotchinga choteteza pamwamba pa putty kuti madzi ndi zinthu zina zoipitsa zisalowe.
Kuphatikiza apo, cellulose ether imathanso kukulitsa mphamvu ya flexural ndi kukana kwa putty, zomwe zimapangitsa kuti ikhale yolimba kwambiri ku ming'alu ndi kusweka. Kapangidwe kameneka ndi kofunikira kwambiri pakugwiritsa ntchito komwe ma putty nthawi zambiri amasungidwa kapena kukhudzidwa, monga pokonza kapena kumaliza zokongoletsera.
Pomaliza
Pomaliza, ma ether a cellulose, makamaka HPMC, ndi ofunikira kwambiri pakuwonjezera magwiridwe antchito a putty. Ntchito zawo zimaphatikizapo kusunga madzi, kukonza bwino ntchito, kumamatira kwambiri, kuchepetsa kuchepa kwa shrinkage komanso kulimba kwambiri. Kugwiritsa ntchito ma ether a cellulose kumathandiza kukonza bwino ntchito ya putty, zomwe zimapangitsa kuti ikhale yomaliza bwino komanso yokhalitsa. Monga wopanga waluso wa HPMC, tadzipereka kupatsa makasitomala ether yapamwamba kwambiri ya cellulose komanso chithandizo chaukadaulo.
Nthawi yotumizira: Julayi-20-2023