Hydroxypropyl methylcellulose ndi non-ionic cellulose ether opangidwa kuchokera ku thonje woyengedwa kudzera muzinthu zingapo zamakemikolo. Ndi ufa woyera wopanda fungo, wopanda poizoni womwe umasungunuka m'madzi ndikupereka njira yoyera kapena yamtambo pang'ono. Zili ndi makhalidwe a thickening, kusunga madzi ndi kumanga kosavuta. Njira yamadzimadzi ya hydroxypropyl methylcellulose HPMC imakhala yokhazikika pamtundu wa HP3.0-10.0, ndipo ikakhala yocheperapo 3 kapena kuposa 10, kukhuthala kumachepetsedwa kwambiri.
Ntchito yaikulu ya hydroxypropyl methylcellulose mu matope a simenti ndi putty powder ndi kusunga madzi ndi kukhuthala, zomwe zingathe kupititsa patsogolo mgwirizano ndi kukana kwa zinthu.
Zinthu monga kutentha ndi kuthamanga kwa mphepo zidzakhudza kuchuluka kwa chinyezi mumatope, putty ndi zinthu zina, kotero mu nyengo zosiyanasiyana, kusungirako madzi kwa zinthu zomwe zili ndi cellulose yowonjezereka kudzakhalanso ndi zosiyana. Pakumanga kwapadera, mphamvu yosungira madzi ya slurry imatha kusinthidwa ndikuwonjezera kapena kuchepetsa kuchuluka kwa HPMC yowonjezeredwa. Kusungidwa kwa madzi kwa hydroxypropyl methylcellulose HPMC pa kutentha kwakukulu ndi chizindikiro chofunikira kusiyanitsa khalidwe la HPMC. HPMC yabwino kwambiri imatha kuthetsa vuto la kusunga madzi pansi pa kutentha kwambiri. M'nyengo youma ndi malo omwe ali ndi kutentha kwakukulu komanso kuthamanga kwa mphepo, m'pofunika kugwiritsa ntchito HPMC yapamwamba kuti ipititse patsogolo ntchito yosungiramo madzi ya slurry.
Choncho, pomanga kutentha kwa chilimwe, kuti mukwaniritse kusungirako madzi, m'pofunika kuwonjezera kuchuluka kwapamwamba kwa HPMC molingana ndi ndondomekoyi, mwinamwake padzakhala mavuto abwino monga kusakwanira kwa hydration, kuchepetsa mphamvu, kusweka. , kukumba ndi kukhetsa chifukwa cha kuyanika mofulumira kwambiri, ndipo nthawi yomweyo Kuonjezeranso zovuta za zomangamanga za ogwira ntchito. Pamene kutentha kumatsika, kuchuluka kwa HPMC komwe kumawonjezeredwa kumatha kuchepetsedwa pang'onopang'ono, ndipo zotsatira zosungira madzi zomwezo zitha kutheka.
Popanga zida zomangira, hydroxypropyl methylcellulose ndi chowonjezera chofunikira kwambiri. Mukawonjezera HPMC, zinthu zotsatirazi zitha kusinthidwa:
1. Kusungirako madzi: Limbikitsani kusunga madzi, onjezerani matope a simenti, kuyanika kwa ufa wouma mofulumira komanso kusakwanira kwamadzimadzi kumayambitsa kuuma kosaumitsa, kusweka ndi zochitika zina.
2. Kumamatira: Chifukwa cha pulasitiki yabwino ya matope, imatha kumangirira gawo lapansi ndi zomatira.
3. Anti-sagging: Chifukwa cha kukhuthala kwake, imatha kuteteza kutsetsereka kwa matope ndi zinthu zomatira pakumanga.
4. Kugwira ntchito: Kuonjezera pulasitiki ya matope, kupititsa patsogolo mafakitale a zomangamanga ndikuwongolera ntchitoyo.
Nthawi yotumiza: Apr-12-2023