Cellulose ethers ikirasi yeakakwira mamorekuru huremu hwemvura-anonyungudika mapolymers anobva muselulosi.Iwo akashandiswa zvakanyanya muindastiri yekuvaka senge-inosimudzira-inosimudzira admixture yesimende-yakavakirwa uye gypsum-yakavakirwa zvigadzirwa.Pakati pavo, hydroxypropyl methylcellulose (HPMC) ndeimwe yeakakosha cellulose ether ye putty.
Senyanzvi yekugadzira HPMC, tichakutsanangurira basa re cellulose ether mu putty.Tinovimba kuti iyi post inopa mamwe mazano anobatsira kune avo vanofarira munyaya iyi.
1. Kuchengeta mvura
Rimwe remabasa makuru e cellulose ether ye putty kuchengetedza mvura.Putty chinhu chakaita senamira chinoshandiswa kuzadza mapundu uye makatsemuka munzvimbo dzakaita semadziro, sirin'i uye pasi.Mvura chinhu chakakosha mukugadzirwa kweputty nekuti inobatsira kunyungudutsa zvinhu uye inopa kushanda.Zvisinei, mvura yakawandisa inogona kuita kuti putty iome uye iwedzere nokukurumidza, zvichiita kuti iparadze uye kupera kwepamusoro.
Cellulose ether, kunyanya HPMC, inoumba gel-yakafanana chimiro kana yakasanganiswa nemvura, iyo inogona kuvandudza kuchengetwa kwemvura kweputty.Iwo mahydrophilic mapoka eHPMC anogona kutora mamorekuru emvura uye oadzivirira kubva pakubuda nekukurumidza.Iyi ficha inobvumira kwenguva yakareba yekushanda uye inowirirana putty mameseji.
2. Kuvandudza kushanda
Rimwe basa rinokosha re cellulose ether ye putty nderekuvandudza kushanda kwayo.Kushanda (workability) zvinoreva kureruka uko iyo putty inoshandiswa uye inoumbwa kuti iwane nzvimbo yakatsetseka.Cellulose ether inogona kuwedzera kuyerera uye kupararira kweputty nekudzikisa kukweshera pakati pezvimedu uye nekuwedzera lubrication yehurongwa.
Kuwedzerwa kwe cellulose ethers kune putties kunoderedzawo kupindira kwemhepo kunokonzerwa nekusanganiswa, izvo zvinogona kutungamirira kune nzvimbo dzisina kuenzana uye kusanamatira kusina kunaka.Kushandiswa kwe cellulose ethers kunonatsiridza kutsvedzerera uye kuenderana kweiyo putty, zvichiita kuti pave nani kuita kwese uye kupera kunoyevedza.
3. Wedzera kunamatira
Imwe bhenefiti ye cellulose ether ye putty kuwedzera kunamatira.Maputty anoshandiswa kuzadza mapundu uye makatsemuka, pamwe nekugadzira nzvimbo yakatsetseka yepende kana kumwe kupedzisa.Nokudaro, iyo putty inofanira kukwanisa kuomerera kune substrate uye kupa chisungo chakasimba.
Cellulose ether, kunyanya HPMC, inogona kuvandudza kusungirirwa kweputty nekugadzira firimu pamusoro pe substrate.Iyo firimu inosimudzira kusangana pakati pe putty uye substrate uye inobatsira kuzadza zvisizvo zvepasi.Izvi zvinoguma nechisungo chakasimba uye kupera kwakasimba.
4. Deredza kupera
Shrinkage idambudziko rakajairika ne putty, sezvo rinogona kutungamira mukutsemuka uye kupera kwemhando yakaderera.Cellulose ethers inogona kubatsira kuderedza putty shrinkage nekuvandudza kuchengetedza kwemvura uye kushanda kweiyo putty.Mvura inoputika zvishoma nezvishoma, ichipa putty chimiro chakapfava chinobatsira kudzivirira kutsemuka uye mitswe kubva pakuumbwa panguva yekuomesa.
Mukuwedzera, cellulose ether inogonawo kuderedza shrinkage yepurasitiki yeputty, kureva, shrinkage inoitika panguva yekutanga kugadzirisa.Iyi pfuma inonyanya kukosha pakukurumidza-kuisa putties, sezvo inobatsira kuchengetedza kutendeseka kwepamusoro uye kudzivirira kuumbwa kwekuputika.
5. Kuvandudza kusimba
Chekupedzisira, cellulose ethers inogona kuvandudza kusimba kweputty nekusimudzira kuramba kwayo kune zvakatipoteredza zvinhu sekuchinja kwekushisa, humidity uye abrasion.Iyo firimu-inogadzira zvinhu zve cellulose ether inogona kupa chidziviriro chekudzivirira pane putty pamusoro kudzivirira kupindira kwemvura uye zvimwe zvinosvibisa.
Uyezve, cellulose ether inogona zvakare kuvandudza simba rekushanduka-shanduka uye kupikisa kuramba kweiyo putty, ichiita kuti isarambe kuputika uye kuputika.Ichi chivakwa chakanyanya kukosha kune maapplication ayo ma putties anogara achibatwa kana kukanganiswa, senge mukugadzirisa basa kana yekushongedza inopera.
mukupedzisa
Mukupedzisa, cellulose ethers, kunyanya HPMC, yakakosha putty performance inosimudzira admixtures.Mabasa avo anosanganisira kuchengetedza kwemvura, kuvandudzwa kwekugadzirisa, kuwedzera kunamatira, kuderedzwa shrinkage uye kuwedzera kusimba.Kushandisa cellulose ethers kunobatsira kuvandudza huwandu hwese uye kuita kweiyo putty, zvichikonzera kupera kuri nani uye hupenyu hwakareba.Senyanzvi yekugadzira HPMC, takazvipira kupa vatengi nemhando yepamusoro cellulose ether uye rutsigiro rwehunyanzvi.
Nguva yekutumira: Jul-20-2023