Mhedzisiro yeCellulose Ether paAdhesive Force yeMortar

Cellulose ethers anowedzera mabasa ekuwedzera mune zvekuvaka, kusanganisira madhaka, uye ave achishandiswa muindasitiri yemazuva ano yekuvaka kwemakumi emakore. Inowanikwa mune dzakawanda mafomu uye mamakisi, uye kusarudzwa kwe cellulose ether kunoenderana neyakagadzirirwa kushandiswa uye zvimiro zvechigadzirwa chekupedzisira.

Kazhinji, cellulose ether inovandudza kushanda kwedhaka nekusimudzira kushanda kwayo, kuchengetedza mvura uye kunamatira kune substrate. Muchikamu chino, tichatarisa pamusoro pekuita kwe cellulose ethers pamatope adhesion, chinhu chinokosha chematope.

Adhesion kugona kwechimwe chinhu kunamatira kune chimwe senge substrate inoiswa dhaka. Mortar adhesion yakakosha pakusimba uye kushanda kwenguva refu kwezvivakwa zvekuvaka. Zvinhu zvinokanganisa kunamatira kwedhaka zvinosanganisira substrate zvivakwa, zvivakwa zvevhu, uye mamiriro ekunze.

Cellulose ether inovandudza kunamatira kwedhaka nekuvandudza rheological uye mechanical properties yedhaka. Kutanga, cellulose ethers inovandudza rheology yematope nekuwedzera kushanda kwavo uye kuderedza kusarura. Kushanda (workability) zvinoreva kureruka kwekusanganiswa kwedhaka, kuiswa nekupedzwa, ukuwo kupatsanurwa kunoreva kupatsanurwa kwezvikamu zvedhaka panguva yekusanganiswa kana kubata. Iyo rheology yedhaka inovandudzwa, ichibvumira kuyerera uye kuzadza mapeji pakati pe substrate nedhaka kuitira kunamatira zviri nani.

Chechipiri, cellulose ethers inovandudza ma mechanic properties yedhaka, senge kusimba kwayo uye kudzvinyirira simba, izvo zvakakosha pakunamira kwedhaka kune substrate. Cellulose ether inovandudza ma mechanic properties yedhaka nekuvandudza hydration yayo, iyo nzira iyo simenti mumatope inopindirana nemvura kuti iite chimiro chakaoma.

Kuvapo kwe cellulose ether mudhaka kunoderedza mwero wekubuda kwemvura mudhaka, zvichiita kuti hydration ienderere mberi. Iyo yakareba hydration process inogadzira yakafara, yakasimba chisungo pakati pedhaka uye substrate yekunamatira zvirinani.

Cellulose ethers anoshandiswa mumatope anouya mumhando dzakasiyana dzemagiredhi nemhando, kusanganisira methylcellulose, hydroxyethylcellulose, uye hydroxypropylcellulose. Methylcellulose ndiyo yakajairika mhando uye inokodzera zvakasiyana-siyana zvekushandisa nekuda kwekukwira kwayo kwemvura kuchengetedza kugona, processability, uye yakagadziridzwa kunamatira. Hydroxyethyl cellulose, kune rumwe rutivi, ndeye hydrophilic uye inogona kutora uye kuchengetedza mvura, nekudaro ichiwedzera kushanda kwedhaka uye kunamatira kwayo kune substrate. Hydroxypropyl cellulose inokodzera kukora uye kuwedzera rheological zvimiro zvemateki, nekudaro kuvandudza kunamatira.

Kupfupisa, cellulose ether chinhu chakakosha muindasitiri yekuvaka uye inoita basa rakakosha mukuvandudza kunamatira kwedhaka. Kuvapo kwe cellulose ether mudhaka kunowedzera rheological uye mechanical properties, zvichiita kuti zvive nani kushanda, hydration uye kunamatira kune substrate. Sarudzo ye cellulose ether inotsamira pane inodiwa application uye inodiwa zvimiro zvechigadzirwa chekupedzisira. Paunenge uchishandisa cellulose ether mudhaka, mirairo yemugadziri inofanirwa kuteverwa kuti iwane mhedzisiro yakanakisa uye kuve nechokwadi chekugara uye kushanda kwenguva refu kwechimiro chekuvaka.