Hydroxypropyl methylcellulose inonyanya kushandiswa semusanganiswa mukugadzira polyvinyl chloride, uye ndiyo inonyanya kushandiswa pakugadzira PVC ne suspension polymerization. Mukuvaka kweindasitiri yekuvaka, inonyanya kushandiswa mukuvaka nemashini senge kuvaka madziro, kuplaster, caulking, nezvimwewo; kunyanya mukuvaka kwekushongedza, inoshandiswa kunamira mataira eceramic, marble, uye purasitiki. Ine simba rakawanda rekubatanidza uye inogona kuderedza huwandu hwesimende. . Inoshandiswa sechinosimbisa muindasitiri yekupenda, izvo zvinogona kuita kuti layer ive yakajeka uye yakapfava, kudzivirira kubviswa kwehupfu, kuvandudza mashandiro ekuyera, nezvimwewo.
Mu cement mortar ne gypsum-based slurry, hydroxypropyl methylcellulose inonyanya kuita basa rekuchengetedza mvura nekuikora, izvo zvinogona kuvandudza simba rekubatana uye kuramba kweslurry. Zvinhu zvakaita sekupisa kwemhepo, tembiricha uye kumhanya kwekumanikidzwa nemhepo zvinokanganisa mwero wekupisa kwemvura mu cement mortar ne gypsum-based products. Nokudaro, mumwaka yakasiyana, pane misiyano mumhedzisiro yekuchengetedza mvura yezvigadzirwa zvine huwandu hwakafanana hwe hydroxypropyl methylcellulose yakawedzerwa. Mukugadzirwa kwacho, mhedzisiro yekuchengetedza mvura yeslurry inogona kugadziriswa nekuwedzera kana kuderedza huwandu hwe HPMC yakawedzerwa. Kuchengetwa kwemvura kwe methyl cellulose ether pasi pemamiriro ekupisa kwakanyanya chiratidzo chakakosha chekusiyanisa mhando ye hydroxypropyl methyl cellulose ether. Zvigadzirwa zvakanaka zve hydroxypropyl methylcellulose series zvinogona kugadzirisa dambudziko rekuchengetedza mvura pasi pekupisa kwakanyanya. Mumwaka wekupisa kwakanyanya, kunyanya munzvimbo dzinopisa uye dzakaoma uye kuvaka kwakatetepa parutivi rwezuva, HPMC yepamusoro inodiwa kuti ivandudze kuchengetedza mvura kweslurry.
Hydroxypropyl methylcellulose (HPMC) yemhando yepamusoro ine hunhu hwakanaka. Mapoka ayo emethoxy nehydroxypropoxy akapararira zvakaenzana pamwe chete ne cellulose molecular chain, izvo zvinogona kuwedzera maatomu eokisijeni ari pa hydroxyl ne ether bonds. Kukwanisa kubatana nemvura kugadzira hydrogen bonds kunoshandura mvura yakasununguka kuita mvura yakasungwa, nokudaro zvichidzora kubuda kwemvura kunokonzerwa nemamiriro ekunze anopisa uye kuwana mvura yakawanda inochengetwa. Mvura inodiwa kuti iite hydration kuitira kuti zvinhu zvakaita se simende ne gypsum zvigadzike. Huwandu hwakakodzera hweHPMC hunogona kuchengetedza hunyoro mumortar kwenguva yakareba kuitira kuti mamiriro ekugadzirisa nekuomesa arambe achienderera mberi.
Huwandu hwehydroxypropyl methylcellulose (HPMC) hunodiwa kuti mvura irambe yakachena hunoenderana ne:
Kunyorova kwehwaro hwechigadziko
Kuumbwa kweMortar
Ukobvu hwedhaka
Kudiwa kwemvura yedhaka
Nguva yekuiswa kwechinhu chinosimbisa simende
Hydroxypropyl methylcellulose inogona kuparadzirwa zvakaenzana uye zvinobudirira mumota yesimende uye zvigadzirwa zvakagadzirwa negypsum, uye inoputira zvidimbu zvese zvakasimba, uye inoumba firimu rinonyorovesa, hunyoro huri muhwaro hunoburitswa zvishoma nezvishoma kwenguva yakareba, uye hunoenderana ne inorganic. Kunyorovesa kwechinhu chakaiswa mugell kunoita kuti chisimbiswe uye simba rekumanikidza rechinhu chacho.
Saka, mukuvaka kwezhizha kunodziya zvakanyanya, kuti mvura irambe ichichengetwa zvakanaka, zvakakosha kuwedzera zvigadzirwa zveHPMC zvemhando yepamusoro muhuwandu hwakakwana zvichienderana nefomura, zvikasadaro, pachava nekushaikwa kwemvura yakakwana, simba shoma, kutsemuka, kuvharika uye kudonha kwemvura kunokonzerwa nematambudziko ekuoma zvakanyanya, asiwo kuwedzera kuoma kwevashandi pakuvaka. Sezvo tembiricha ichidzikira, huwandu hwemvura inowedzerwa neHPMC hunogona kudzikiswa zvishoma nezvishoma, uye mhedzisiro imwechete yekuchengetedza mvura inogona kuwanikwa.
Nguva yekutumira: Kubvumbi-10-2023