Hydroxypropyl Methyl Cellulose (HPMC, Hydroxypropyl Methyl Cellulose) ndi zinthu za polima zomwe zimagwiritsidwa ntchito kwambiri mu putty powder. Imakhala ndi kusungunuka kwamadzi bwino, kumamatira, kusunga madzi, kukhuthala, kupanga mafilimu ndi mafuta, choncho imagwira ntchito yofunika kwambiri mu putty powder.
1. Kusunga madzi
Imodzi mwa ntchito zofunika kwambiri za HPMC mu putty powder ndikupereka madzi osungira bwino. Ufa wa putty umauma mukaugwiritsa ntchito, pomwe HPMC imasunga chinyezi ndikutalikitsa nthawi yowuma. Chikhalidwe ichi chimalola ufa wa putty kukhala ndi nthawi yayitali yogwira ntchito panthawi yochiritsa, zomwe zimapindulitsa pomanga. Kusungirako madzi kumalepheretsanso kusweka kwa putty layer, kumapangitsa mphamvu ndi kukhazikika kwa chinthu chomalizidwa.
2. Kukhuthala
Monga thickening agent, HPMC ikhoza kuonjezera kukhuthala kwa ufa wa putty, kupangitsa kuti ufa wa putty ukhale wochuluka komanso ngakhale utagwiritsidwa ntchito. Itha kusintha kusasinthika kwa ufa wa putty kuti mupewe kuwonongeka kwa zinthu ndi zovuta zomanga, potero kuwonetsetsa kuti ufa wa putty ukhoza kuphimbidwa pakhoma popanda kuyenderera, ndikuwongolera zomangamanga.
3. Mafilimu opanga mafilimu
Filimu yopangidwa ndi HPMC panthawi yowumitsa imatha kuwonjezera mphamvu ya pamwamba ndi kukhazikika kwa ufa wa putty. Zopanga kupanga filimu ndizofunikira kwambiri pakutha kwa putty powder kukana kusweka ndi kuvala. Kapangidwe ka filimuyi sikungolepheretsa ming'alu ya pamwamba pa putty wosanjikiza, komanso kumathandizira kukana kwa putty wosanjikiza ku chilengedwe, monga kukana kwa UV ndi kukana chinyezi.
4. Mafuta
HPMC ili ndi mafuta abwino ndipo imathandizira kukonza ntchito yomanga ya putty powder. Panthawi yosakaniza ndi kumanga ufa wa putty, mphamvu ya mafuta ya HPMC imapangitsa kuti zikhale zosavuta kusonkhezera ufa wa putty mofanana ndikuwuyika bwino pakhoma. Izi sizimangopangitsa kuti zomangamanga zikhale zosavuta, komanso zimachepetsanso kuwonongeka kwa zida zomangira.
5. Kukhazikika
HPMC imatha kusintha kwambiri kukhazikika kwa ufa wa putty. Ikhoza kulepheretsa ufa wa putty kuti usakhazikike, kugwirizanitsa ndi mavuto ena panthawi yosungiramo ndikuwonetsetsa kukhazikika kwa nthawi yayitali kwa mankhwalawa. Izi zokhazikika za HPMC zimalepheretsa ufa wa putty kuti usagwedezeke mobwerezabwereza musanagwiritse ntchito ndikusunga khalidwe lofanana.
6. Kupititsa patsogolo ntchito yotsutsa-slip
Popanga makoma oyima, ngati ufa wa putty ulibe zinthu zabwino zotsutsana ndi kutsetsereka, umakonda kugwa ndi kugwa. Kuphatikizika ndi kukhuthala kwa HPMC kumapangitsanso bwino ntchito yotsutsa-yotupa ya putty powder, kuonetsetsa kuti zinthuzo zikhoza kumangirizidwa mwamphamvu pakhoma kuti zikhale zosalala, zosalala.
7. Limbikitsani kukhazikika
Kukhalapo kwa HPMC kumapangitsa kuti ufa wa putty ukhale wosavuta kupanga, umachepetsa kumamatira kwa zida, komanso umapangitsa kuti zomangamanga ziziyenda bwino. Zimapangitsa kuti ufa wa putty ukhale wosavuta kumamatira ku zida panthawi yomanga, kuchepetsa kukana panthawi yogwiritsira ntchito, ndikuwongolera chitonthozo ndi zotsatira za zomangamanga.
8. Sinthani maola otsegulira
HPMC ikhoza kusintha nthawi yotsegulira ufa wa putty. Nthawi yotsegulira imatanthawuza nthawi yomwe ufa wa putty ukhoza kusinthidwa ndikukonzedwa pambuyo pomanga. Poyang'anira kuchuluka kwa HPMC yowonjezeredwa, nthawi yotsegulira ufa wa putty ikhoza kukulitsidwa moyenera kapena kufupikitsidwa kuti igwirizane ndi zosowa zosiyanasiyana zomanga.
9. Sinthani kukana kwa ming'alu
Chifukwa cha kukhuthala ndi kusungirako madzi kwa HPMC, imatha kuteteza ufa wa putty kuti usafooke ndi kusweka chifukwa cha kutaya madzi ochulukirapo panthawi yowuma. Itha kupereka kukhazikika koyenera, kulola kuti chowuma chowuma cha putty chigonjetse kupsinjika kwakunja ndikuchepetsa kuchitika kwa ming'alu yapamtunda.
10. Sinthani kukana kwanyengo
HPMC ikhoza kupititsa patsogolo kukana kwa nyengo ya putty powder ndikuletsa kukalamba ndi kuwonongeka kwa putty wosanjikiza m'malo ovuta. Chifukwa cha mawonekedwe opanga mafilimu ndi kukhazikika kwa HPMC, imatha kukana kukokoloka kwa ultraviolet ndi kusintha kwa chinyezi, kukulitsa moyo wautumiki wa ufa wa putty.
HPMC imagwira ntchito zingapo mu putty powder. Kuchokera pa kusunga madzi, kukhuthala, ndi kupanga mafilimu mpaka kupititsa patsogolo ntchito yomanga ndikuwongolera kukana kwa ming'alu, zimagwira ntchito yofunika kwambiri pakupanga ndi kupanga kwa putty powder. Kugwiritsa ntchito kwake kumapangitsa ufa wa putty kukhala ndi ntchito yabwino yomanga, kukhazikika komanso kukhazikika, kupereka chitsimikizo chofunikira pakumanga khoma. Mwachidule, HPMC ndi gawo lofunikira komanso lofunika kwambiri la putty powder ndipo limagwira ntchito yosasinthika pakuwongolera magwiridwe antchito a putty powder.
Nthawi yotumiza: Jul-10-2024