Ntchito ya hydroxypropyl methylcellulose (HPMC) muzinthu za gypsum ndiyofunika kwambiri. Zida za Gypsum zimagwiritsidwa ntchito kwambiri pomanga, kukongoletsa ndi minda ina yamafakitale. Monga chowonjezera chamagulu ambiri, HPMC imagwiritsidwa ntchito kwambiri pazinthu za gypsum. Ntchito zake zazikulu ndikuwongolera magwiridwe antchito a gypsum slurry, kulimbikitsa mphamvu zomangira, kuwongolera nthawi yokhazikitsa ndikuwongolera kulimba kwa zinthuzo.
Udindo waukulu wa HPMC mu gypsum
1. Kuwongolera magwiridwe antchito
HPMC akhoza kwambiri kusintha ntchito ntchito gypsum slurry, kupanga kukhala fluidity bwino ndi workability. Izi makamaka chifukwa HPMC ali ndi zotsatira zabwino thickening ndipo akhoza kuonjezera mamasukidwe akayendedwe a slurry, potero kupewa slurry ku delaminating, kumira ndi zochitika zina pa ntchito yomanga. Kuphatikiza apo, HPMC imathanso kukonza kasungidwe kamadzi ka gypsum slurry, kuti zisaume chifukwa cha nthunzi wofulumira wamadzi panthawi yomanga.
2. Limbikitsani kugwirizana
HPMC imatha kupititsa patsogolo mgwirizano pakati pa gypsum ndi gawo lapansi. Ichi ndi chifukwa HPMC akhoza kupanga dongosolo labwino maukonde mu gypsum slurry, amene kumawonjezera mgwirizano wa gypsum slurry, potero kukulitsa luso lake kugwirizana ndi gawo lapansi. Kuphatikiza apo, HPMC ilinso ndi kunyowa pang'ono, komwe kumatha kukulitsa malo olumikizana pakati pa gypsum slurry ndi pamwamba pa gawo lapansi, kupititsa patsogolo mgwirizano.
3. Kulamulira nthawi coagulation
HPMC imatha kuwongolera nthawi yokhazikika ya gypsum slurry. Kuphatikiza kwa HPMC kumatha kuchepetsa kuthamanga kwa gypsum slurry, kupatsa ogwira ntchito yomanga nthawi yokwanira kuti agwire ntchito ndikusintha, ndikupewa kuwonongeka kwa zomangamanga komwe kumachitika chifukwa chakufulumira kwambiri. Izi ndizofunikira makamaka pomanga madera akuluakulu komanso zinthu za pulasitala zooneka ngati zovuta.
4. Kupititsa patsogolo kulimba kwa zinthu
HPMC imathanso kukonza kulimba kwa zida za gypsum. Kuphatikiza kwa HPMC kumatha kukulitsa kukana kwa gypsum ndikuletsa kuyanika ndi kusweka chifukwa cha kusintha kwa kutentha ndi kusintha kwa chinyezi. Kuphatikiza apo, HPMC ilinso ndi zinthu zina zopanda madzi, zomwe zimatha kuchepetsa kukokoloka kwa chinyezi pazinthu za gypsum ndikuwonjezera moyo wawo wautumiki.
Mfundo yogwiritsira ntchito HPMC mu gypsum
1. Mfundo yokhutiritsa
Mapangidwe a maselo a HPMC ali ndi magulu ambiri a hydroxyl ndi methyl. Magulu ogwira ntchitowa amatha kupanga zomangira za haidrojeni ndi mamolekyu amadzi, potero kuwonjezera kukhuthala kwa slurry. The thickening zotsatira za HPMC akhoza kusintha fluidity ndi workability wa gypsum slurry, komanso kusintha bata la slurry ndi kupewa delamination ndi mpweya.
2. Mfundo yosungira madzi
HPMC ili ndi zinthu zabwino kwambiri zosungira madzi ndipo imatha kupanga filimu yosungiramo madzi yofananira mu gypsum slurry kuti muchepetse kutuluka kwa madzi. Mphamvu yosungiramo madzi ya HPMC imatha kuletsa slurry kuti isang'ambe ndi kutsika panthawi yowumitsa, kuwongolera bwino komanso kugwiritsa ntchito zinthu za gypsum.
3. Kugwirizana mfundo
HPMC akhoza kupanga dongosolo labwino maukonde mu gypsum slurry kuonjezera mgwirizano wa slurry. Pa nthawi yomweyo, wettability wa HPMC akhoza kuonjezera kukhudzana m'dera pakati pa gypsum slurry ndi pamwamba pa gawo lapansi, potero kuwongolera kugwirizana mphamvu.
4. Mfundo yoyendetsera nthawi ya coagulation
HPMC ikhoza kuchedwetsa liwiro lokhazikika la gypsum slurry, makamaka posintha liwiro la hydration reaction mu slurry. Kuphatikizika kwa HPMC kumatha kuchedwetsa hydration reaction ya calcium sulfate mu gypsum slurry, kupatsa slurry nthawi yayitali yogwira ntchito komanso ntchito yomanga bwino.
5. Mfundo ya durability kusintha
Mphamvu yolimbitsa ya HPMC imatha kupititsa patsogolo kukana kwa gypsum ndikuletsa kusweka kouma ndi kusweka komwe kumachitika chifukwa cha kusintha kwa kutentha ndi kusintha kwa chinyezi. Kuphatikiza apo, ntchito yopanda madzi ya HPMC imatha kuchepetsa kukokoloka kwa zinthu za gypsum ndi madzi ndikuwonjezera moyo wawo wautumiki.
Kugwiritsa ntchito HPMC muzinthu za gypsum ndikofunikira kwambiri. Pakuwongolera magwiridwe antchito a gypsum slurry, kukulitsa mphamvu zomangira, kuwongolera nthawi yokhazikitsa ndikuwongolera kulimba kwa zinthuzo, HPMC imatha kuwongolera bwino komanso kugwiritsa ntchito zinthu za gypsum. Chifukwa chake, HPMC yakhala chinthu chofunikira komanso chofunikira kwambiri pazida za gypsum muzomangamanga zamakono ndi zokongoletsa.
Nthawi yotumiza: Jul-11-2024