Hydroxypropyl methylcellulose (HPMC) imhando ye cellulose ether isina ionic yakagadzirwa ne cellulose yepolymer yechisikigo kuburikidza nemaitiro akasiyana-siyana emakemikari. Hydroxypropylmethylcellulose (HPMC) ihupfu huchena husina hwema, husina kunaka, husina chepfu hunogona kunyungudutswa mumvura inotonhora kuti hugadzire mhinduro yakajeka ine viscous. Ine hunhu hwekukora, kusunga, kuparadzira, emulsifying, kugadzira firimu, kumisa, kukwiza, gelling, surface active, kuchengetedza hunyoro uye kuchengetedza colloid. Mumortar, basa rakakosha rehydroxypropyl methylcellulose kuchengetedza mvura, uko kugona kwemortar kuchengetedza mvura.
1. Kukosha kwekuchengetedza mvura mudhaka
Dhaka risina mvura yakakwana rinogona kubudiswa neropa uye kupatsanurwa panguva yekufambisa nekuchengetedza, kureva kuti, mvura inoyangarara pamusoro, jecha nesimende pasi, uye rinofanira kusanganiswazve risati rashandiswa. Dhaka risina mvura yakakwana, panguva yekuzora, chero bedzi dhaka rakasanganiswa rakagadzirwa rikasangana nebhuroko kana hwaro, dhaka rakasanganiswa rakagadzirwa richanyudzwa nemvura, uye panguva imwe chete, pamusoro pedhaka richapisa mvura kuenda mumhepo, zvichikonzera kurasikirwa nemvura yedhaka. Kusakwana kwemvura kunokanganisa kunyorova kwesimbi uye kukanganisa kukura kwakajairika kwesimba redhaka, zvichikonzera kuderera kwesimba, kunyanya simba rekubatana pakati pedhaka rakaomeswa nehwaro hwepasi, zvichikonzera kutsemuka nekudonha kwedhaka.
2. Nzira yechinyakare yekuvandudza kuchengetwa kwemvura mudhaka
Mhinduro yechinyakare ndeyekudiridza hwaro, asi hazvigoneke kuona kuti hwaro hwakanyoroveswa zvakaenzana. Chinangwa chakanakisa chekunyorovesa simbi yesimbi pahwaro ndechekuti: chigadzirwa chekunyorovesa simbi chinopinda muhwaro pamwe chete nemaitiro ehwaro hwekunwisa mvura, zvichigadzira "kiyi yekubatanidza" nehwaro, kuitira kuti uwane simba rekubatanidza rinodiwa. Kudiridza zvakananga pamusoro pehwaro kunokonzera kupararira kwakakomba mukunwisa mvura kwehwaro nekuda kwekusiyana kwekupisa, nguva yekudiridza, uye kuenzana kwekudiridza. Hwaro hahuna mvura yakawanda uye hucharamba huchinwisa mvura iri muhwaro. Mvura isati yatanga kunwisa simende, mvura inonwisa, izvo zvinokanganisa kupinda kwemvura yesimbi uye zvigadzirwa zvekunwisa mvura muhwaro; hwaro hune mvura yakawanda inonwisa, uye mvura iri muhwaro inoyerera ichienda kuhwaro. Kumhanya kwepakati nepakati kunononoka, uye kunyange layer ine mvura yakawanda inoumbwa pakati pehwaro nehwaro, izvo zvinokanganisawo simba rekubatanidza. Saka, kushandisa nzira yekudiridza pasi hakungogumiri pakugadzirisa dambudziko rekunyudzwa kwemvura yakawanda pamadziro, asi kuchakanganisa simba rekubatana pakati pedhaka nepasi, zvichikonzera kutsemuka nekupwanyika.
3. Kuchengetedza mvura zvakanaka
(1) Kushanda zvakanaka kwekuchengetedza mvura kunoita kuti dhaka rivhurike kwenguva yakareba, uye rine zvakanakira zvekuvakwa munzvimbo yakakura, kugara kwenguva refu mubhare, uye kusanganisa mabheti nekushandisa mabheti.
(2) Kushanda zvakanaka kwekuchengetedza mvura kunoita kuti simende iri mudura ive nemvura yakakwana, zvichivandudza mashandiro ekubatana kwedura.
(3) Mortar ine simba rakanaka rekuchengetedza mvura, izvo zvinoita kuti mortar isanyanya kuparadzaniswa uye kubuda ropa, izvo zvinoita kuti mortar ishande zvakanaka uye ivakwe zvakanaka.
Nguva yekutumira: Kurume-20-2023