HPMC (Hydroxypropyl Methylcellulose)inowanzoshandiswa polymer compound iyo inoshandiswa zvakanyanya mumunda wekunamatira. Inoita basa rakakosha mune zvakawanda zvezvinonamira.
1. Kukora mumiririri basa
HPMC isimba rinoita gobvu rinogona kuvandudza zvakanyanya viscosity uye kugadzikana kwezvinonamira. Yayo molecular chimiro ine yakasimba hydrophilicity uye polysaccharide cheni, uye inogona kugadzira yunifomu colloidal mhinduro mumvura kana organic solvents. Unhu uhwu hunogona kudzivirira zvinonamira kubva pakudonhedza kana kugadzika panguva yekuchengetedza uye kushandiswa, nekudaro kuve nechokwadi chekufanana kweanonamatira.
2. Kuwedzeredzwa kwekuita kwekunamatira
HPMC ine yakanakisa adhesion zvivakwa uye inogona kuvandudza zvakanyanya kunamira kwekunamatira kune substrate. Mushure mekuputirwa pamusoro peiyo substrate, mamorekuru eHPMC anogona kupinda mukati memapores ari pamusoro kuti awedzere kusimba kwechisungo uye akakodzera zvinhu zvakasiyana senge bepa, fiber, huni uye ceramics.
3. Mafirimu ekugadzira zvinhu
HPMCine yakanakisa firimu-kugadzira zvimiro uye inogona kukurumidza kuumba yunifomu uye inoenderera firimu mushure mekuputira. Iyi firimu ine kusimba kwakanaka uye elasticity uye inogona kupa imwe nhanho yekudzivirira yekunamatira, inovandudza kusimba uye kusapinda kwemvura kwechisungo. Mukuwedzera, iyo firimu inoderedza kukanganiswa kwemamiriro ekunze, akadai sekunyorova kana kushanduka kwekushisa, pakuita kwekunamatira.
4. Kuchengeta mvura
HPMCine yakanakisa kuchengetedza mvura uye inogona kuvhara mwando mune inonamira kudzivirira kurasikirwa kwemvura yakawandisa. Ichi chimiro chinonyanya kukosha mumvura-based adhesives uye simenti-based zvinhu, izvo zvinogona kuwedzera nguva yekuvhura, kufambisa kuvaka, uye kudzivirira kuomesa shrinkage kana kuparara kwekubatana kwekuita kunokonzerwa nekukurumidza kubuda kwemvura.
5. Stabilizer effect
HPMC inogona kuvandudza zvakanyanya kugadzikana kweanonamira sisitimu, kudzivirira kugadzirisa kana kuungana kwezvimedu zvakasimba, uye kuchengetedza chigadzirwa kufanana. Mapoka anoshanda muketani yaro yemamorekuru anogonawo kushanda zvakabatana nezvimwe zvikamu zvekuvandudza kugadzikana uye kuita kwefomula.
6. Ushamwari hwezvakatipoteredza
HPMC chigadzirwa chinowanikwa nekugadziriswa kwemakemikari echisikigo cellulose. Haina chepfu, haina kukuvadza uye biodegradable. Kushandiswa kwaro mumanamira kunoenderana nezvinodiwa zvemazuva ano ekuchengetedza nharaunda uye kune zvakakosha zvakakosha kunyanya mukuvaka, kurongedza uye maindasitiri ezvekudya.
7. Gadzirisa rheology
Iyo yakakosha rheological zvimiro zveHPMC mune mhinduro (senge shear thinning) inogonesa iyo inonamira kuve yakanaka yekuvaka zvivakwa panguva yekushandisa. Viscosity yaro inoderera pasi pemamiriro ekugera, zvichiita kuti zvive nyore kupendeka, kupfapfaidza kana kukwesha, nepo viscosity yaro inopora pasi pemamiriro ekucheka, kuve nechokwadi chekunamatira kwakanaka kwezvinhu kune substrate.
Nzvimbo dzekushandisa
Sechikamu chakakosha chekunamatira, HPMC inoshandiswa zvakanyanya mundima dzinotevera:
Indasitiri yekuvaka: senge mataira anonamira, putty poda, yakaoma yakasanganiswa dhaka, inoshandiswa kuvandudza mashandiro ekuvaka uye simba rekubatanidza.
Woodworking adhesive: Kuvandudza chisungo chekubatanidza pakati pehuni uye kudzivirira kuputika.
Papermaking uye kudhinda: inoshandiswa pakuputira mapepa kuwedzera kutsvedzerera uye kunamatira.
Textile uye dehwe: inoshandiswa kugadzira fiber uye kusungirirwa kweganda.
HPMCinotamba mabasa akawanda mukunamira senge kukora, kuchengetedza mvura, kudzikamisa, kukwidziridzwa kwekunamira uye kugadzira firimu. Iyo ine zvakare zvakanakira kuchengetedza kwezvakatipoteredza uye inogadziriswa rheology. Izvi zvimiro zvinoita kuti ive chinhu chakakosha uye chakakosha mukugadzirwa kwekunamira, ichipa rubatsiro rwakakosha mukuvandudza kuita kwechigadzirwa uye kusangana nezvinodiwa zvakasiyana.
Nguva yekutumira: Nov-23-2024