suma:
Gypsum-based materials inoshandiswa zvakanyanya mumapurojekiti ekuvaka nokuda kwesimba rayo, kusimba uye kudzivirira moto.Zvishandiso izvi zvinogadzirwa negypsum, ine mineral compound inowanzowanikwa mu sedimentary rocks, uye mvura.Gypsum-based materials inowanzoshandiswa kumadziro, sirin'i uye pasi mudzimba dzekugara, dzekutengeserana uye dzemaindasitiri.
Hydroxypropyl methylcellulose (HPMC) uye hydroxyethyl methylcellulose (HEMC) i-nonionic cellulose ethers inowanzoshandiswa mumapurojekiti ekuvaka.Iwo anotorwa kubva kumapolima echisikigo uye mapolymer anonyungudika nemvura.Vane zvinhu zvakawanda zvinoita kuti zvive zvakanaka kune gypsum-based materials.
Ichi chinyorwa chichaongorora akawanda mabhenefiti ekushandisa HPMC neHEMC mune gypsum-based materials.
1. Kuvandudza kushanda
Imwe yemabhenefiti makuru ekushandisa HPMC uye HEMC mune gypsum-yakavakirwa zvinhu kugona kwavo kuvandudza machinability.Kana aya cellulose ethers akawedzerwa kumusanganiswa, anowedzera simba rekubata mvura ye simenti uye anovandudza kusanganisa, kupararira uye troweling.
Nekuda kweizvozvo, gypsum-yakavakirwa zvinhu zvave nyore kushanda nazvo uye vavaki vanogona kusanganisa zviri nyore, kuzvishandisa nekuzvigadzira kune zvavanoda.Ichi chivakwa chinonyanya kukosha kumapurojekiti anoda akaomesesa madhizaini kana mapatani akaomarara.
Pamusoro pezvo, kuvandudzwa kwekuvaka kunofambisa kukurumidza kuvaka maitiro, kuchengetedza makondirakiti uye vatengi nguva nemari.
2. Kuwedzera kunamatira uye kunamatira
Imwe mukana wakakosha wekushandisa HPMC neHEMC mune gypsum-yakavakirwa zvinhu kugona kwavo kusimudzira kubatana uye kunamatira.Aya cellulose ethers anovandudza kusangana pakati pekomboni ne substrate, zvichikonzera kusimba, kunogara kwenguva refu.
Ichi chivakwa chinonyanya kubatsira kumapurojekiti anosanganisira nzvimbo dzakanyorova, senge yekugezera, kicheni kana madziva ekutuhwina.Kuwedzeredzwa kusungirirwa uye kunamatira kunodzivirira zvinhu kubva pakutsemuka, kusvuura kana kudonhedza, kunyangwe pasi pemamiriro ezvinhu akaoma.
3. Wedzera kushorwa kwemvura
HPMC neHEMC vanozivikanwawo nekugona kwavo kuvandudza kusamira kwemvura.Kana yawedzerwa kune gypsum-based materials, aya cellulose ethers anoumba chidziviriro chakakomberedza zvidimbu, kudzivirira mvura kuti isapinda pamusoro.
Iyi ficha inonyanya kukosha kumapurojekiti anoda kupikisa kwemvura yakakwira, senge dzimba dzepasi, nheyo kana facades.Kuwedzeredzwa kwekudzivirira kwemvura kunoderedza njodzi yekukuvara kubva kunyoro, mold kana mildew, kuwedzera hupenyu hwechimiro.
4. Yakanakisa rheology
Rheology isayenzi inodzidza deformation uye kuyerera kwezvinhu pasi pekunetseka.HPMC neHEMC vanozivikanwa nekunaka kwavo rheology, zvinoreva kuti vanogona kushandura viscosity, elasticity uye plastiki yegypsum-based materials.
Iyi ficha inonyanya kukosha kumapurojekiti anoda akasiyana mazinga ekuenderana, senge-yega pasi, pendi yekushongedza kana moldings.Yakanakisa rheology inobvumira zvinhu kuti zvienderane kune akasiyana maumbirwo, saizi uye maumbirwo, zvichikonzera kutsetseka, kwakafanana.
5. Kuvandudzwa kwemhepo kupinza
Aeration ndiwo maitiro ekuunza mabhuru madiki emhepo mumusanganiswa kuti uvandudze kutonhora-kunyungudika kwechinhu, kugadzirisika uye kusimba.HPMC neHEMC yakanakisa mhepo-intraining agents, zvichireva kuti inowedzera huwandu uye saizi yemabhuru emhepo mune gypsum-based materials.
Iyi ficha inonyanya kubatsira kumapurojekiti anoda yakakwira chando-thaw kuramba, senge pavement ekunze, mabhiriji kana tunnel.Kuvandudzwa kwekupinda kwemhepo kunodzivirira zvinhu kubva pakutsemuka, kusvuura kana kuparara nekuda kwekushanduka kwetembiricha, kuderedza mari yekugadzirisa nekuvandudza kuchengetedzwa kwekuvaka.
mukupedzisa:
Iko kushandiswa kweHPMC neHEMC mune gypsum-based zvinhu kune akawanda mabhenefiti eindastiri yekuvaka.Aya nonionic cellulose ethers anovandudza mashandiro, anowedzera kunamatira uye kunamatira, anowedzera kuramba kwemvura, anopa yakanakisa rheology uye anovandudza mhepo kupinda.
Aya maficha haangonatsiridza kunaka kwekuvaka, asi zvakare kuderedza mutengo, kuwedzera kugadzirwa, uye kuwedzera kuchengetedzwa kwevashandi vekuvaka nevashandisi.Nokudaro, kushandiswa kweHPMC neHEMC mune gypsum-based materials inogona kuva sarudzo yakanaka uye inonzwisisika kune chero chirongwa chekuvaka.
Nguva yekutumira: Aug-11-2023