Cellulose ethers imhando yakakosha yezvinowedzera zvinoshanda zvakawanda, izvo zvinoshandiswa zvakanyanya mumunda wezvinhu zvekuvaka kuti zvivandudze mashandiro echigadzirwa. Kunyanya muma tile adhesives, cellulose ethers inogona kuvandudza zvakanyanya hunhu hwayo hwemuviri nemakemikari, kuvandudza mashandiro ekuvaka, uye kuwedzera simba rekubatanidza uye kugara kwenguva refu.
1. Hunhu hwekutanga hwe ethers dze cellulose
Cellulose ethers zvinhu zvinobva mu cellulose yechisikigo, uye zvakajairika zvinosanganisira methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl cellulose (HEC), nezvimwewo. Hunhu hwayo hukuru ndehwekuti inonyungudika mumvura, ichigadzira mhinduro ine viscosity yakakura, uye ine hunhu hwakanaka hwekukora, kuchengetedza mvura uye kugadzira firimu. Hunhu uhwu hunoita kuti cellulose ethers ive nebasa guru mukunamatira mataira.
2. Kuchengetedzwa kwemvura kwakavandudzwa
2.1 Kukosha kwekuchengetedza mvura
Kuchengetwa kwemvura kwezvinamatiro zvemataira kwakakosha pakushanda zvakanaka kwekuvaka uye kusimba kwekubatanidza. Kuchengetwa kwemvura kwakanaka kunogona kuita kuti chinamatiro chive nehunyoro hwakakodzera panguva yekuchenesa, nokudaro zvichiita kuti simende iwane mvura yakakwana. Kana kuchengetwa kwemvura kusina kukwana, mvura inonyudzwa nyore nyore nepasi pevhu kana nharaunda, zvichikonzera kunyorova kusina kukwana, izvo zvinokanganisa simba rekupedzisira uye simba rekubatanidza kwechinamatiro.
2.2 Maitiro ekuchengetedza mvura e cellulose ether
Cellulose ether ine simba guru rekuchengetedza mvura uye inogona kusunga mamorekuru emvura akawanda pacheni yayo yemamorekuru. Mhinduro yayo yemvura ine viscosity yakakura inogona kugadzira kugoverwa kwemvura kwakafanana muchinamira uye kuvharira mvura kuburikidza ne capillary action mu network yekunamira kudzivirira kuti mvura isarasike nekukurumidza. Iyi nzira yekuchengetedza mvura haingobatsiri chete kuti simende iwane mvura, asiwo inogona kuwedzera nguva yekuvhura kwechinamira uye kuvandudza kuchinjika kwekuvaka.
3. Kuvandudza mashandiro ekuvaka
3.1 Kuwedzerwa kwenguva yekuvhura
Kuiswa kwe cellulose ether kunowedzera nguva yekuvhurwa kwematiles anonamira, kureva kuti, nguva iyo manamira inoramba yakanamatira mushure mekuiswa pamusoro pe substrate. Izvi zvinopa vashandi vekuvaka nguva yakawanda yekugadzirisa nekuisa mataira, nokudaro zvichideredza zvikanganiso zvekuvaka zvinokonzerwa nekumanikidzwa kwenguva.
3.2 Kubudirira kwekudzivirira kudonha kwemvura
Munguva yekuvaka, chinamira chinogona kudonha nekuda kwesimba rinokwevera pasi mushure mekunge mataira aiswa, kunyanya kana chakaiswa panzvimbo dzakamira. Kukora kwe cellulose ether kunogona kuvandudza hunhu hwechinamira hunodzivirira kudonha, zvichiita kuti chisatsvedzerere kana chakanamatira pamataira. Hunhu uhwu hwakakosha zvikuru pakuona kururama uye runako rwese rwekuisa mataira.
3.3 Kuvandudza kunyorova uye kushanda zvakanaka kwechinhu
Kunyorova kwe cellulose ether kunovandudza mashandiro ematiles anonamira, zvichiita kuti zvive nyore kuisa uye kuapfavisa. Izvi zvinobatsira kuderedza kuoma nenguva yekuvaka uye kuvandudza kushanda zvakanaka kwekuvaka.
4. Wedzera simba rekubatana
4.1 Kuvandudza kunamira kwekutanga
Mhinduro ine viscosity yakawanda inoumbwa ne cellulose ether mumushonga wemvura inogona kuwedzera kunamira kwekutanga kwematiles, zvichipa kunamira nekukurumidza pakuisa mataira uye kudzivirira kutsvedza kana kutsemuka kwematiles.
4.2 Kurudzira kunyoroveswa kwesimende
Kushanda zvakanaka kwe cellulose ether kuchengetedza mvura kunoita kuti simende iwane mvura yakakwana, zvichiita kuti pave nekugadzirwa kwemvura yakawanda (senge calcium silicate yakanyungudutswa), iyo inowedzera simba rekubatanidza kweglue. Maitiro aya haangogadziri simba reglue chete, asiwo anovandudza kugara kwayo kwenguva refu uye kuramba kwayo kutsemuka.
5. Kugara kwenguva refu uye kuramba kutsemuka
5.1 Kudzivirira kunyunguduka kwechando nechando kwakavandudzwa
Cellulose ethers inovandudza kuramba kwezvinamathero zvemataira nechando nekuvandudza kuchengetedza mvura uye kuomarara kwezvinamathero, zvichideredza kufamba nekukurumidza uye kurasikirwa nemvura. Kuvandudzwa uku kunobvumira chinamathero kuchengetedza kushanda kwakasimba kunyangwe munzvimbo dzinotonhora zvakanyanya uye hachiwanzotsemuka kana kupwanyika.
5.2 Kudzivirira kutsemuka kwakavandudzwa
Munguva yekugadzika kweglue, chimiro che network chakagadzirwa ne cellulose ethers chinobatsira kunonoka kupwanyika kwesimende uye kuderedza njodzi yekutsemuka kunokonzerwa nekushungurudzika kwekupwanyika. Pamusoro pezvo, kusimba kwe cellulose ethers kunoita kuti gure rikwanise kuzadza zviri nani mukaha uri pakati pe tile ne substrate, zvichiwedzera kugadzikana kwe bonding interface.
6. Mamwe mabasa
6.1 Kupa mafuta ekuzora uye kudzivirira kudonha kwemvura
Kuzorwa kwe cellulose ethers hakungobatsiri chete pakushanda, asiwo kunoderedza kusamira kweglue panguva yekushandiswa, zvichiita kuti ive nechokwadi chekuti rinonamira zvakafanana uye rakagadzikana panguva yekushandiswa.
6.2 Kuvandudzwa kwekuvaka
Nekuwedzera kusimba uye nguva yekuvaka kweglue, cellulose ether inovandudza nyore kwekuvaka, zvichibvumira vashandi vekuvaka kugadzirisa nzvimbo yemataira zviri nyore, zvichideredza zvikanganiso zvekuvaka uye mwero wekugadzirisa patsva.
7. Mienzaniso yekushandiswa kweCellulose Ether
Mukushandiswa kwakanangana, cellulose ether inovandudza mhando yepurojekiti yese nekuvandudza mashandiro ema tile adhesives. Semuenzaniso, mune dzimwe nzvimbo dzinopisa zvakanyanya kana hunyoro hushoma, ma glues akajairwa anogona kusangana nedambudziko rekurasikirwa nemvura nekukurumidza, zvichikonzera matambudziko ekuvaka uye simba risinganetsi. Mushure mekuwedzera cellulose ether, glue inogona kuchengetedza mvura zvakanaka, kudzivirira matambudziko aya, uye nekudaro ichivimbisa mhando yepurojekiti.
Cellulose ether inovandudza zvakanyanya mashandiro ematiles ekunamatira mataira kuburikidza nekuchengetedza kwayo mvura, kukora uye kunyorova kwayo. Haingogadzirise mashandiro ekuvaka, simba rekubatanidza uye kugara kwenguva refu kwematiles, asiwo inovandudza nyore uye kuvimbika kwekuvaka. Kuvandudzwa uku hakungogadzirise chete kunaka kwepurojekiti, asiwo kunopa kuchinjika kukuru uye kugadzikana kwemaitiro ekuvaka. Saka, sechinowedzerwa chakakosha, kushandiswa kwematiles ekunamatira mataira kune kukosha kwakakosha uye mikana yakakura.
Nguva yekutumira: Chikumi-24-2024