Hydroxypropylmethylcellulose (HPMC) i polymer yekugadzira inoshandiswa zvakanyanya muindasitiri yekuvaka, kunyanya mukugadzira dhaka nekongiri. HPMC inoshanda seyakakora uye yekuchengeta mvura mumiriri, inosimudzira ma mechanic zvivakwa uye kushanda kwe simende-yakavakirwa zvinhu. HPMC chinhu chakasiyana-siyana chinogona kushandiswa muzvigadzirwa zvesimende zvakaita semataira, plasters uye pasi. Muchikamu chino, tinoongorora mabhenefiti ekushandisa HPMC mudhaka uye kongiri zvikumbiro.
Vandudza kushanda
Kuwedzerwa kweHPMC kune dhaka nekongiri kunonatsiridza mapurasitiki, kubatana uye kuchengetwa kwemvura kwesementitious musanganiswa. HPMC inoputika mumvura uye inoumba gel-yakafanana nehuwandu, iyo inoderedza kurasikirwa kwemvura mumusanganiswa, zvichiita kuti simiti irambe ichishanda kwenguva yakareba. Kuvandudzwa kwekushanda kwemusanganiswa kunoita kuti zvive nyore kune vashandi kuti vashandise musanganiswa wesamende kuitira nzvimbo yakatsetseka, yakafanana.
kuwedzera kunamatira
Kuwedzerwa kweHPMC kwakavandudzawo kusungirirwa kwemusanganiswa we simenti kune substrate. HPMC inoshanda seanonamira pakati pe substrate uye musanganiswa wecementitious, ichisimbisa chisungo chakasimba uye chinogara kwenguva refu. Iyo yakagadziridzwa yakanamatira yemusanganiswa wesimende zvakare inoderedza mukana wekutsemuka kana kuparara kwedhaka kana kongiri layer.
kuderedza shrinkage
Shrinkage chiitiko chinoitika kana mvura ichiputika kubva mumusanganiswa wesamende zvichiita kuti iite shoma. Izvi zvinogona kutungamirira kune kuputika uye kuputika mumucheka we simenti, kuderedza kutendeseka kwechivako. Kuwedzera HPMC kumasanganiswa esimende kunoderedza kuderera kwemusanganiswa nekuchengetedza hunyoro uye kuderedza chiyero chekubuda. Izvi zvinovimbisa kuti musanganiswa we simenti unoramba wakagadzikana uye hausi kuderera, zvichiita kuti chivako chakasimba uye chinogara chakasimba.
Kuwedzera kusimba
Kushandisa HPMC mumasanganiswa ecementitious kunogona zvakare kugadzirisa kusimba kwechigadzirwa chakapedzwa. HPMC inoumba yechipiri network mukati mesamende matrix, ichiwedzera kusimba uye kusimba kwekongiri. Iyo gel-yakaita sechinhu chinoumbwa neHPMC chinoshandawo sechidziviriro chekudzivirira, kudzivirira kupinda kwemvura uye zvimwe zvinhu zvinokuvadza zvinogona kukonzera kukanganisa kwekongiri zvimiro.
Kuvandudza kudzivirira kwemvura
Kupokana kwemvura ndicho chinhu chakakosha chesimende-yakavakirwa zvimiro, kunyanya pazvinoratidzwa nemvura kana hunyoro. HPMC inosimudzira kuramba kwemvura kwesementitious musanganiswa nekugadzira chivharo chisina mvura chinodzivirira mvura kupinda mukati mecementitious matrix. Izvi zvinoderedza mukana wekukuvadzwa kwemvura sekutsemuka, spalling uye corrosion, kuve nechokwadi chekugara kwenguva refu, chimiro chakasimba.
kuwedzera kushanduka
Iko kushandiswa kweHPMC kunowedzerawo kushanduka kwemusanganiswa we simenti. HPMC inoderedza kuomarara kwekomboni, ichibvumira kukotama uye kuwedzera pasina kutsemuka kana kutsemuka. Izvi zvinoita kuti chimiro chekongiri chirambe chichipokana nekuvhunduka uye kuzununguka, kuderedza mukana wekukuvadza kubva kumasimba ekunze.
Vandudza kukanganisa kwezvakatipoteredza
Kushandisa HPMC mumasanganiswa esimende zvakare kune zvakanakira nharaunda. HPMC chinhu chisiri chepfu, chinoodza uye chinokanganisa nharaunda icho chisingakonzere njodzi kune hutano kana nharaunda. Kushandisa HPMC mune simende-based application kunogona kuderedza huwandu hwemvura inodiwa pamusanganiswa, kuderedza kushandiswa kwemvura uye kuderedza kukanganiswa kwezvakatipoteredza.
mukupedzisa
Kuwedzerwa kwehydroxypropylmethylcellulose (HPMC) kudhaka uye kongiri musanganiswa kunopa akawanda mabhenefiti nekuvandudza ma mechanic zvivakwa uye kushanda kwemusanganiswa. HPMC inovandudza kushanda kwemasanganiswa esimende nekusimudzira mapurasitiki, kubatana uye kuchengetwa kwemvura, zvichikonzera kupfava, kwakafanana nzvimbo. HPMC zvakare inonatsiridza kunamatira, inoderedza shrinkage, inosimudzira kusimba, kudzivirira kwemvura uye kuchinjika, uku ichideredza kukanganiswa kwezvakatipoteredza kwemaitiro. Naizvozvo, kushandiswa kweHPMC muindasitiri yekuvaka inhanho yakakosha kune yakawedzera kushanda, yakagadzikana uye inogara kwenguva refu simende-yakavakirwa zvivakwa zvinokwanisa kumira zvakasiyana-siyana.
Nguva yekutumira: Aug-25-2023