Pa nthawi yomweyo, akhoza bwino bwino compressive mphamvu ndi kukameta ubweya mphamvuHPMC hydroxypropyl methyl cellulose, kupititsa patsogolo zotsatira zenizeni za zomangamanga, kupititsa patsogolo luso.HPMC hydroxypropyl methyl cellulose imatha kupititsa patsogolo mphamvu yomatira ya ufa wa putty, kuchepetsa kuyimitsidwa, kuti zitsimikizire kuti ntchito yomanga zomangamanga ikuyenda bwino.Hydroxypropyl methyl cellulose imatha kuonjezera nthawi yothamanga ndikuthana ndi vuto la mphamvu zopanda pake komanso zosakwanira pakumanga kwaukadaulo.
Kutsekeka kwakukulu kwamadzi kwa matope omanga a uinjiniya ndi matope a putty kumatha kusakaniza konkriti mokwanira, ndipo mwachiwonekere kumatha kupititsa patsogolo mphamvu yomangira yamatope.Nthawi yomweyo, mphamvu yopondereza ndi kumeta ubweya wa hydroxypropyl methyl cellulose zitha kusinthidwa bwino kuti zipititse patsogolo zotsatira zenizeni za zomangamanga ndikuwongolera bwino.
Mwana wosamva chinyezi,Mtengo wa HPMChydroxypropyl methyl cellulose, zotsatira za hydroxypropyl methyl cellulose mu putty powder, kuteteza kuyanika ndi kuyanika chifukwa cha kutuluka kwa madzi mofulumira.Hydroxypropyl methyl cellulose imatha kupititsa patsogolo mphamvu yomatira ya ufa wa putty, kuchepetsa kuyimitsidwa, kuonetsetsa kuti zomangamanga zikuyenda bwino.
HPMC hydroxypropyl methyl cellulose key yokhala ndi kutseka madzi, kukhuthala, kunyowetsa ndi zina, kukhuthala, kunyowetsa ndi zotsatira zina zimakhala ndi zotsatira zoyambira.Hydroxypropyl methyl cellulose imatha kuonjezera nthawi yothamanga ndikuthana ndi vuto la mphamvu zopanda pake komanso zosakwanira zoyambira pakumanga zomangamanga.
HPMC hydroxypropyl methyl cellulose mu matope otchinjiriza pakhoma imagwira ntchito yofunika kwambiri pakumangirira, ndikuwonjezera mphamvu yopondereza ya zida.Mtondo ndi wosavuta kuphimba, kuwongolera bwino, ndi ntchito yoyambira kuyimitsidwa kwa anti-flow ndi kuchitapo kanthu.Kutsekera kwamadzi kwa hydroxypropyl methyl cellulose kumatha kukulitsa nthawi yothamanga yamatope, kukonza kukana kuphatikizika ndi kumangirira, kukonza mawonekedwe apamwamba, komanso kupititsa patsogolo mphamvu zomangira zomangira.
Chomangira cha matailosi osungunuka kwambiri m'madzi chimachotsa kufunikira kwa matailosi onyowa kale kapena onyowa ndi maziko, kupititsa patsogolo mphamvu zomangira zomangira.Nthawi yomanga uinjiniya wa slurry ndi yayitali, yosamala, yofananira, yomanga uinjiniya yabwino, yokhala ndi chinyezi chabwino.
M'munda wa zokutira zachilengedwe za latex, hydroxypropyl methyl cellulose ingagwiritsidwe ntchito ngati wopangira filimu, tackifier, demulsifier ndi thickener, kotero kuti filimu ya pulasitiki ikhale yabwino kuvala kukana, fluidity ndi adhesion.PH yomwe imagwiritsidwa ntchito popititsa patsogolo kusamvana kwapakati kumatanthauzidwa bwino, ndipo kusakaniza ndi organic solution ndikwabwino komanso kumakhala kosalala bwino.
Kukula kwachuma Zotchingira zomanga zimakhala ndi mphamvu zabwino, kutha kwamadzi bwino komanso kukana kukalamba.Dongosolo lenileni la mapangidwe amiyala yokutira ndiyofunikira kwambiri.Matani a lacquer apamwamba kwambiri amapangidwa ndi 300KG koyera styrene-acrylic emulsion, 650KG koyera mwala wachilengedwe wamadzimadzi ndi zigawo zina.Ma lacquers enieni apamwamba amadziwika ndi zodzoladzola zambiri zonyowa.Pamene emulsion madzi zikuchokera 50%, buku la 300KG moisturizing emulsion pambuyo kuyanika pafupifupi 150 malita, ndi buku la 650KG lolemera mchenga ndi za 228 malita.Ndiko kunena kuti, pankhaniyi, utoto weniweni wamwala (mtengo wamtengo wapatali wa phala) ndi 60%.Chifukwa cha kukula kwakukulu kwa tinthu tating'ono komanso mawonekedwe osawoneka bwino a mchenga wabwino, potengera kusanthula kwa tinthu tating'onoting'ono, zokutira zakunja zowuma zimatha kukhala mozungulira mtengo wa CPVC).
Kwa viscosifier, ngati makulidwe oyenera a cellulose asankhidwa, zokutira pakhoma lakunja zimatha kutulutsa tsatanetsatane, wosanjikiza kwambiri wa utoto, kuti akwaniritse magawo atatu a zokutira kunja kwa khoma.Malamulo atatu opangira zokutira.M'malo mwake, kugwiritsa ntchito miyala yambiri yazachuma komanso yothandiza, tani ya chinsinsi chosungunulira chosungunulira 100-160kg, mchenga wa 750kg wachikuda, 20kg (kuphatikiza zowonjezera, mankhwala ophera tizilombo, fungicides, zomatira, etc.) madzi ndi mankhwala osamalira khungu.Mtundu uwu wa penti weniweni wa PVC nthawi zambiri pakati pa 75%?Pakati pa 85%, pogwira ntchito yowuma, zopaka utoto zenizeni zenizeni zimakhala zovuta kukhazikitsa wosanjikiza watsatanetsatane komanso wolimba.Choncho, mmene ntchito mokwanira zochepa moisturizing emulsion chinsinsi Chinsinsi zotsatira, kuti ❖ kuyanika mmene ndingathere symmetrical.
Zovala zenizeni zomanga miyala zimakhala ndi mawonekedwe otsika mamasukidwe (kulemera kwa maselo).Chifukwa cha kukwera kwa mtengo wa zinthu za cellulose, kukhuthala kwa cellulose yogwiritsidwa ntchito kumasinthidwa kuchoka pa 30000 kupita ku 50000,80000,100000, ngakhale atakwera ndi 200000, cholinga chake ndikuchepetsa kuchuluka kwa cellulose kuchokera ku methyl cellulose (HEC). ) mpaka hydroxyl acrylic cellulose (HPMC);Kugwiritsa ntchito methyl methyl cellulose HPMC kudzachepetsa kwambiri kuthamangitsidwa kwamadzi kwa utoto weniweni womanga, ndiyeno kuwongolera kukhuthala kwa cellulose (mamolekyulu achibale) kudzakhala mapeto enieni opangira utoto wamtengo wapatali?Yankho ndiloti ntchito ya utoto wa utoto wa miyala idzaipiraipira!
HPMC akhoza kugawidwa mu nthawi yomweyo ndi kutentha sungunuka mitundu.Pamene madzi ozizira amabalalika mofulumira ndikutha m'madzi, HPMC ikhoza kugawidwa m'magulu apompopompo komanso osungunuka kutentha.Panthawiyi, madzi alibe mamasukidwe akayendedwe, chifukwa HPMC amangomwazikana m'madzi, ndipo palibe tanthauzo lenileni la kusungunuka.Pambuyo pa 2min, kukhuthala kwamadzimadzi kumakula pang'onopang'ono, kutulutsa njira yowonekera ya viscous colloid.Zinthu zosungunulira zotentha zikachulukana m’madzi ozizira, zimatha kumwazikana m’madzi otentha n’kutayika m’madzi otentha.Kutentha kozungulira kumachepetsedwa mpaka kutentha kwina, kukhuthala kudzachitika pang'onopang'ono mpaka njira yowonekera bwino ya viscous colloidal imapangidwa.Mtundu wa organic zosungunulira zosungunulira umangogwiritsidwa ntchito mkati mwa khoma la putty ufa ndi matope.Mu superglue yamadzimadzi ndi zokutira, pali anthu omwe sangagwiritsidwe ntchito.Mtundu wofulumira - wosungunuka uli ndi gulu lazogwiritsa ntchito.Angagwiritsidwe ntchito ngati mkati khoma putty ufa ndi matope, ndi madzi superglue ndi ❖ kuyanika.Palibe zonyansa.
Kusungunuka kwamadzi otentha: chifukwa HPMC m'madzi otentha sichisungunuka, kotero HPMC mu ulalo woyambirira ukhoza kumwazikana mofanana m'madzi otentha, ndiyeno kusungunuka mofulumira pamene kuzizira.Njira ziwiri zachikale zikufotokozedwa motere:
1) Ikani madzi otentha omwe mukufuna m'chotengera ndikutenthetsa mpaka 70 ℃.Pang'onopang'ono sakanizani, pang'onopang'ono yonjezerani hydroxypropyl methyl cellulose, pang'onopang'ono HPMC yoyandama pamtsinje, kenako pang'onopang'ono mutulutse matope a sludge mu kusakaniza.
2) Onjezani 1/3 kapena 2/3 yamadzi muchombo, tenthetsani ku 70 ℃, mutenthe mpaka 70 ℃ kuti mubalalitse HPMC, ndikukonzekera matope amadzi otentha;Madzi ozizira otsalawo amawonjezeredwa ku sludge yotentha ndikusakaniza ndi kusakaniza pambuyo pozizira.
Njira yosakaniza ufa: HPMC ufa ndi blender ndi zina zambiri ufa mankhwala zosakaniza zokwanira kusakaniza, ndiye kuwonjezera madzi kupasuka.Panthawi imeneyi, HPMC akhoza kusungunuka pa nkhani ya palibe agglomeration, chifukwa aliyense ngodya yaing'ono chabe pang'ono HPMC ufa, pamene madzi yomweyo kupasuka - mtundu uwu wa njira basi ntchito mkati khoma putty ufa ndi opanga matope.[HPMC] monga cholumikizira komanso chonyowetsa mumatope amkati mwakhoma.
Uwu ndi misozi yokumba ya hydroxypropyl methyl cellulose (HMPC), yomwe ili pafupi ndi chinthu cha viscoelastic (makamaka mucin) m'misozi.Iwo amamatira pamwamba pa diso mwa adsorption wa polima, ndipo simulates udindo wa conjunctival mucin, kuti kusintha yafupika mkhalidwe mucin m`maso ndi kuonjezera wetting zotsatira za cornea.
Mu putty ufa, thickening, kusunga madzi ndi kumanga ntchito zitatu.Thickening, mapadi akhoza unakhuthala kuti kuyimitsidwa, kotero kuti yankho kukhala yunifolomu mmwamba ndi pansi udindo odana otaya atapachikidwa.Kusungirako madzi: pangani ufa wa putty kuti uume pang'onopang'ono, kashiamu wothandiza wa imvi pochita madzi.Kumanga: kudzoza kwa cellulose, kumatha kupanga ufa wa putty kukhala ndi zomangamanga zabwino.HPMC sitenga nawo gawo pazosintha zilizonse zamakina, koma imangothandiza.
Utoto wamtundu umasinthasintha posankha mtundu, ndipo ukhoza kukwaniritsa luso lojambula bwino, ndipo utoto weniweni wamwala pofunafuna moyo wachilengedwe, ndi wabwino kuposa utoto wamtundu, aliyense ali ndi mphamvu zake.Utoto wa utoto ndi lacquer popanga, kuti tisunge mtundu wapachiyambi, nthawi zambiri pomaliza, tiyenera kugwiritsa ntchito varnish (mafuta opepuka) kupopera kuti ateteze luso lawo laluso kapena mwala.
Lacquer, utoto wamtundu ndi mtundu wa utoto, womwe umagwiritsidwa ntchito kwambiri pakukongoletsa khoma.Tsamba lovomerezeka la matope achilengedwe a diatom amafotokoza mwachidule kusiyana pakati pa utoto wamtundu ndi lacquer, utoto wamtundu ndi njira yosiyanitsa ya lacquer, zotsatirazi zenizeni kuti muwone kusiyana pakati pa utoto wa lacquer ndi utoto.
Mtengo wapamwamba kwambiri wa latex, opanga kuti apulumutse ndalama, ingowonjezerani pang'ono kuchuluka kwa emulsion, mutatha kupanga filimu yowuma mwala, osalimba mokwanira, filimu ya utoto ndi yayikulu kwambiri, mphamvu yopondereza imachepetsedwa, kamodzi kukumana mvula nyengo kwa nthawi yaitali, mvula kulowa mu utoto filimu, kwenikweni mwala utoto woyera.
Ena opanga kupanga lacquer, nthawi zambiri kuwonjezera zambiri carboxymethyl mapadi, hydroxyethyl mapadi monga thickener, zinthu zimenezi ndi madzi sungunuka kapena hydrophilic, ❖ kuyanika filimu anasiya wosanjikiza, kuchepetsa kwambiri kukana madzi ❖ kuyanika.
Nthawi yotumiza: Jun-09-2022