HPMC inokanganisa sei simba remota?

1. Pfupiso yeHPMC

Hydroxypropyl methylcellulose (HPMC)i nonionic cellulose ether inowanzoshandiswa semushonga wekuchengetedza mvura uye kuvandudza kushanda kwayo mumota. Mumasystem emota, haingogadziri rheology nenguva yekushanda chete asiwo inokanganisa zvakananga kana zvisina kunanga simba remota yakaomeswa. Mhedzisiro iyi ine chekuita zvakanyanya nechiyero cheHPMC, mwero wekutsiva, viscosity, fomura, uye mamiriro ekushanda.

2. Mhedzisiro Yakanaka yeHPMC Pakusimba Kwesimbi

2.1. Kuvandudza Kushanda Nesimba Kwemvura Isimende
Simba reHPMC rekuchengetedza mvura rinoderedza kurasikirwa nemvura panguva yekuvaka dhaka, kunyanya mumamiriro ekupisa kwakanyanya, mhepo ine simba, kana substrates dzinonyudza mvura. Izvi zvinoita kuti zvidimbu zvesimende zvinyungudike zvakakwana. Kunyorova kwakakwana kunoita kuti zvigadzirwa zve hydration zvive zvakawandisa (senge CSH gel) mudhaka, izvo zvinobatsira kuvandudza simba rekutanga uye repashure.

2.2. Kuderedza Kupatsanurwa uye Kubuda Kweropa
Kusagovaniswa kwesimende nesimbi mumota kunogona kukonzera kusasimba kwenzvimbo dzemukati mushure mekuoma. HPMC inowedzera kusimba kwesystem, inoderedza kugadzikana kwesimbi uye kutorwa kwemvura, nokudaro ichivandudza kufanana kwesimbi uye kuwedzera simba resimbi.

2.3. Kuvandudza Kubatana kweInterfacial
Munguva yekunyorovesa mvura, HPMC inogadzira firimu repolymer rakapararira zvakaenzana, iro rinosangana nezvigadzirwa zve hydration yesimende kuti riwedzere kubatana kwemakemikari nemakemikari pakati pemortar ne substrate. Izvi hazvingobatsiri chete pakusimba kwebond asiwo zvinowedzera simba rekumanikidza.

2.4. Kuderedza Njodzi Yekupwanyika Kwemapundu
Nekuchengetedza mvura uye kuburitsa mvura zvishoma nezvishoma, HPMC inogona kuderedza kupwanyika kwesimbi isati yasvika, zvichiita kuti simbi ipararire zvakaenzana uye kudzivirira kuwanda kwesimbi kunogona kukonzera kurasikirwa nesimba.

3. Migumisiro Yakaipa Inogona Kuitika yeHPMC Pakusimba Kwesimbi

3.1. Kushandisa Zvakawandisa Kunoita Kuti Simba Rirasikirwe
HPMC ipolymer yeorganic uye haibatanidzwi mukuita kwemvura inoyerera nesimende. Kana ikawedzerwa yakawanda, inogona kuumba chikamu chikuru cheorganic mukati memortar yakaoma, zvichideredza kushanda kwe inorganic binder uye zvinogona kukonzera kudzikira kwesimba rekumanikidza.

3.2. Kunonoka kweSimende Kuyerera Kwemvura
Kunyudzwa kweHPMC kunogona kufukidza pamusoro pezvidimbu zvesimende, zvichikanganisa kupararira kwemvura uye zvinononotsa kuyerera kwemvura. Izvi zvinononotsa kukura kwesimba pakutanga. Kunyangwe ichigona kudzoserwa zvishoma gare gare, haina kunaka pakushandiswa kunoda simba nekukurumidza (senge kugadzira mamortar nekukurumidza).

3.3. Mhedzisiro yeKupinda Kwemhepo
Mamwe maHPMC ane viscosity yakakwira anowanzo pinza ma microbubbles panguva yekusanganisa, zvichiwedzera huwandu hwemhepo mumortar. Kana mabubble aya akasaparadzwa, anoumba maburi mushure mekuoma, zvichideredza simba rekudzvanya.

4. Zvinhu Zvikuru Zvinokanganisa Kuwanda Kwemvura Mumuviri

4.1. Dhigirii reHPMC reKutsiva uye Kusviba
Madhigirii epamusoro ekutsiva uye kupenya kwakanyanya kweHPMC zvine simba rekuchengetedza mvura, asiwo zvinoderedza kunonoka kwemvura uye mhedzisiro yekupinda kwemhepo.
Mhando dzisina kusimba zvakanyanya hadzina simba rakawanda pakuyerera kwemvura uye kushanda zvakanaka, uye njodzi yekurasikirwa nesimba yakaderera.

4.2. Kudzora Kuyera Muyero
Chiyero cheHPMC chinowanzo shandiswa mumadhaka akaoma-sanganiswa i0.1% kusvika 0.3% yehukuru hwesimbi inogadzirwa nesimbi. Kupfuura huwandu uhu kunogona kukonzera kudzikira kwesimba.

4.3. Sisitimu Yekugadzira
Kana iine upfu hwepolymer hunonyungudika (RDP), simba reHPMC neRDP rinogona kuvandudza kuchinjika nekunamatira zvakanyanya, uye rine mhedzisiro yakanaka pakusimba kweflexural.
Mumasystem akareruka kana ane maburi, kuchengetedza mvura kweHPMC kwakanyanya kukosha, zvichideredza kurasikirwa nesimba zvakanyanya.

4.4. Mamiriro Ekuvaka Nekuporesa
Mhedzisiro yakanaka yeHPMC pakusimba kwemvura inoonekwa zvakanyanya kana tembiricha yakakwira, hunyoro hushoma, kana mhepo ine simba. Kusiyana neizvi, munzvimbo dzine hunyoro uye kana substrate isinganyevenuki mvura, mukana wayo wekuchengetedza mvura haunyanyi kuonekwa, uye mwero wakawandisa unogona kutokanganisa simba rayo.

5. Mazano Ekugadzirisa

5.1. Kudzora Kuyera Kwemupimo Nemazvo
Paunenge uchiita shuwa kuti zvinokwanisika kushanda, shandisa mushonga wakaderera zvikuru kuti udzivise kuwanda kwemakemikari kunogona kuderedza simba remuviri.

5.2. Shandisa neDefoamers
Kuti ugadzirise matambudziko ekupinda kwemhepo neHPMC ine viscosity yakakura, wedzera huwandu hwakakodzera hwe defoamer kuderedza mabubble emhepo uye maburi.

5.3. Kushandiswa Kwakabatana Nezvimwe Zvinowedzerwa
Kana ikasanganiswa neupfu hwepolymer hunonyungudika, lignin sulfonates, nezvimwe zvinowedzera, inogona kuwedzera simba uye kugara kwenguva refu uku ichiramba ichishanda zvakanaka.

5.4. Kugadzirisa Fomura Yekushandisa
Kune zvinonamira mataira nemadhaka eplaster, tanga waona kukosha kwesimba rekubatanidza uye kushanda zvakanaka, nepo simba rekudzvanya richigona kuderedzwa kusvika pamwero wakati.
Pakugadzirisa matura ekugadzirisa, chiyero cheHPMC chinofanira kuderedzwa kuti chirambe chakasimba.

HPMC ine simba rakawanda pakusimba kwedhaka: chiyero chakakodzera uye chiyero chakakodzera zvinogona kuwedzera huwandu hwese hwechigadzirwa uye kugara kwenguva refu kwechombo, nepo chiyero chakawandisa kana chiyero chisina kukodzera chinogona kuderedza simba. Kusarudzwa kwesainzi uye kudzora chiyero ndizvo zvakakosha pakushandisa mabhenefiti eHPMC uku uchidzivirira migumisiro yayo yakaipa.