Ngesikhathi esifanayo, kungathuthukisa ngokunengqondo amandla okucindezela namandla okugundaI-HPMC i-hydroxypropyl methyl cellulose, ithuthukise futhi umphumela wangempela wokwakhiwa konjiniyela, ithuthukise ukusebenza kahle. I-HPMC hydroxypropyl methyl cellulose ingathuthukisa amandla okunamathela we-putty powder, ukunciphisa isimo sokumiswa, ukuqinisekisa ukuphumelela kokwakhiwa kobunjiniyela. IHydroxypropyl methyl cellulose ingakhuphula isikhathi sokusebenza futhi ibhekane nenkinga yamandla okucindezela asekuqaleni angenalutho enqubweni yokwakha yobunjiniyela.
Ukusebenza okuphezulu kokuvala amanzi kodaka lokwakhiwa kobunjiniyela kanye nodaka lwe-putty kungenza ukhonkolo uxubene ngokwanele, futhi ngokusobala kungathuthukisa amandla okucindezela okubophayo odaka. Ngesikhathi esifanayo, amandla acindezelayo namandla e-shear e-hydroxypropyl methyl cellulose angathuthukiswa ngokunengqondo ukuze kuthuthukiswe umphumela wangempela wokwakhiwa kobunjiniyela nokuthuthukisa ukusebenza kahle.
Indodana yokumelana nomswakama,I-HPMCi-hydroxypropyl methyl cellulose, umphumela we-hydroxypropyl methyl cellulose ku-putty powder, ukuvimbela ukoma nokomisa okubangelwa ukuphuma kwamanzi okusheshayo. I-Hydroxypropyl methyl cellulose ingathuthukisa amandla okunamathela we-putty powder, inciphise isimo sokumiswa, iqinisekise impumelelo yokwakha ubunjiniyela.
Ukhiye we-HPMC we-hydroxypropyl methyl cellulose onamanzi okukhiya, ukujiya, ukumanzisa neminye imiphumela, ukujiya, ukumanzisa neminye imiphumela inomphumela othile wokusetha wokuqala. IHydroxypropyl methyl cellulose ingakhuphula isikhathi sokusebenza futhi ibhekane nenkinga yamandla okucindezela asekuqaleni angenalutho enqubweni yokwakha yobunjiniyela.
I-HPMC hydroxypropyl methyl cellulose odongeni lokufakwa odongeni idlala indima ebalulekile kumphumela wokubopha, futhi ithuthukisa amandla acindezelayo wezinto ezingavuthiwe. I-mortar ilula kakhulu ukumboza, ithuthukisa ukusebenza kahle, nomsebenzi oyisisekelo wokumiswa kokulwa nokugeleza kanye nomphumela osebenzayo. Ukusebenza kokuvala amanzi kwe-hydroxypropyl methyl cellulose kungakhuphula isikhathi sokusebenza sodaka, kuthuthukise ukumelana nokuhlanganiswa nokubambelela, kuthuthukise ikhwalithi ephezulu, futhi kuthuthukise amandla okucindezela okubopha.
I-binder yethayela encibilika kakhulu emanzini isusa isidingo samathayili aphansi acwiliswe ngaphambili noma amanzi kanye nezisekelo, ngokuqhubekayo sithuthukisa amandla okucindezela okubophayo. Isikhathi sokwakhiwa kobunjiniyela be-slurry side, siyacophelela, siyalingana, ukwakhiwa kobunjiniyela esikahle, esinokumelana nokuswakama okuhle.
Emkhakheni wezingubo zemvelo zokwakha i-latex, i-hydroxypropyl methyl cellulose ingasetshenziswa njenge-ejenti yokwenza ifilimu, i-tackifier, i-demulsifier kanye ne-thickener, ukuze ifilimu yepulasitiki ibe nokuphikiswa okungcono kokugqoka, uketshezi nokunamathela. I-pH esetshenziselwa ukuthuthukisa ukungezwani kobuso ichazwe kahle, futhi ingxube enesisombululo semvelo yinhle futhi inokushelela okuhle.
Ukuthuthukiswa komnotho Izembatho zezakhiwo zinamandla amahle, ukungena kwamanzi okuhle kakhulu kanye nokumelana nokuguga okuhle. Uhlelo lokuklama ifomula yokugqoka amatshe langempela lubaluleke kakhulu. I-ton of high quality lacquer yakhiwa mayelana ne-300KG emulsion ehlanzekile ye-styrene-acrylic, i-650KG isixazululo se-rock yemvelo ehlanzekile enamanzi nezinye izingxenye. Ikhwalithi ephezulu ye-lacquers yangempela ibonakala ngamaloshini amaningi okuthambisa. Lapho ukwakheka koketshezi kwe-emulsion kungu-50%, ivolumu ye-emulsion e-moisturizing engu-300KG ngemva kokumiswa ingaba amalitha angu-150, kanti umthamo wesihlabathi esindayo esingu-650KG ungama-228 amalitha. Okusho ukuthi, kulokhu, upende lwamatshe langempela (inamathisela inani lokugxila kombala) ngu-60%. Ngenxa yobukhulu bezinhlayiyana ezinkulu nokubonakala okungajwayelekile kwesihlabathi esicolekile, ngaphansi kwesisekelo sokuhlaziywa kosayizi wezinhlayiyana ezithile, okomile odongeni lwangaphandle kungenzeka kuzungeze inani lokuhlushwa le-CPVC).
Nge-viscosifier, uma i-viscosity ye-cellulose efanelekile ikhethiwe, ukunamathela odongeni lwangaphandle kungakhiqiza ungqimba lukapende olunemininingwane eminingi, olugxiliswe kakhulu, ukuze kuzuzwe izinhlinzeko ezintathu zokumbozwa kodonga lwangaphandle. Imithetho emithathu yokwakhiwa kwezingubo. Eqinisweni, ukusetshenziswa kwetshe eliningi lezomnotho nelisebenzayo qi, ithani le-solvent yeresiphi eyimfihlo engu-100-160kg, isihlabathi sepuleti esinemibala engu-750kg, 20kg (okuhlanganisa izithasiselo zokumboza, izibulala-zinambuzane, ama-fungicides, ama-adhesives, njll.), konke okunye amanzi nemikhiqizo yokunakekelwa kwesikhumba. Lolu hlobo lweqiniso lwe-PVC ngopende lwamatshe ngokuvamile luphakathi kuka-75%? Phakathi kuka-85%, inqubo yokusebenza yomile, upende wangempela wamatshe onamathela kunzima ukusungula ungqimba oluningilizayo noluqinile. Ngakho-ke, indlela yokusebenzisa ngokugcwele okulinganiselwe okulinganiselwe kwe-emulsion ye-recipe eyimfihlo yokuthambisa, ukuze ukugqoka kuze kufike ku-symmetrical.
Izingubo zokwakhiwa kwamatshe zangempela zinezici ze-viscosity ephansi (isisindo esiphezulu samangqamuzana). Ngenxa yokwenyuka kwentengo yezinto ze-cellulose, i-viscosity ye-cellulose esetshenzisiwe ishintshiwe isuka ku-30000 iye ku-50000,80000,100000, noma ngabe inyuswe ngo-200000, inhloso ukunciphisa inani eliphelele le-cellulose kusuka ku-methyl cellulose (HEC). ) kuya ku-hydroxyl acrylic cellulose (HPMC); Ukusetshenziswa kwe-methyl methyl cellulose HPMC kuzonciphisa ngokuphawulekayo ukuxoshwa kwamanzi kopende wokwakha amatshe wangempela, bese kuthuthukiswe i-viscosity ye-cellulose (isisindo samangqamuzana esihlobene) kuyoba isiphetho sokusebenza kwempahla yetshe yangempela yokwakha? Impendulo iwukuthi ukusebenza kwesendlalelo sepende yamatshe kuzoba kubi nakakhulu!
I-HPMC ingahlukaniswa ngezinhlobo ezincibilikayo ezisheshayo nezincibilikayo. Lapho amanzi abandayo ehlakazeka ngokushesha futhi ephela emanzini, i-HPMC ingahlukaniswa ngezinhlobo ezisheshayo nezincibilikayo. Ngalesi sikhathi, uketshezi alunayo i-viscosity, ngoba i-HPMC ihlakazeka emanzini kuphela, futhi awukho umuzwa wangempela wokuncibilika. Ngemuva kwemizuzu emi-2, i-viscosity yoketshezi ikhula kancane, ikhiqize isixazululo se-viscous colloid esobala. Lapho izinto ezincibilikisa izinto eziphilayo ezishisayo zinqwabelana emanzini abandayo, zingahlakazeka ngokushesha emanzini ashisayo futhi zihlakazeke emanzini ashisayo. Lapho izinga lokushisa le-ambient lincishiselwa ezingeni elithile lokushisa, i-viscosity izokwenzeka kancane kancane kuze kube yilapho kukhiqizwa isisombululo se-viscous colloidal esisobala ngokugcwele. Uhlobo lwe-solvent eshisayo ye-organic lusetshenziswa kuphela odongeni lwe-putty powder nodaka. Ku-superglue ye-liquid nama-coatings, kunesibalo sabantu esingeke sisetshenziswe. Uhlobo olusheshayo - lokuncibilika lunesigaba sohlelo lokusebenza olujwayelekile. Ingasetshenziswa njenge-putty yangaphakathi yodonga lwe-putty nodaka, kanye ne-superglue yayo ewuketshezi kanye ne-coating. Akukho taboo.
Ukuncibilika kwamanzi ashisayo: ngoba i-HPMC emanzini ashisayo ayincibiliki, ngakho-ke i-HPMC kusixhumanisi sokuqala ingahlakazwa ngokulinganayo emanzini ashisayo, bese incibilika ngokushesha lapho ipholisa. Izindlela ezimbili zakudala zichazwa kanje:
1) Faka amanzi ashisayo owadingayo esitsheni bese uwashisa aze afike ku-70℃. Hlanganisa kancane kancane, kancane wengeze i-hydroxypropyl methyl cellulose, kancane kancane i-HPMC intanta emfuleni, bese ukhiqiza kancane kancane udaka lwesiqandisi sodaka ekuxubeni.
2) Faka i-1/3 noma i-2/3 yamanzi emkhunjini, uwushise ku-70 ℃, uwushise ku-70 ℃ ukuze uhlakaze i-HPMC, futhi ulungise udaka lwamanzi ashisayo; Amanzi abandayo asele abe esefakwa odongeni olushisayo bese exutshwa nengxube yangemva kokupholisa.
Indlela yokuxuba impushana: I-HPMC powder ene-blender nezinye izithako zamakhemikhali angu-powder ingxube eyanele, bese ufaka amanzi ukuze incibilike. Ngalesi sikhathi, HPMC kungenziwa ziyoncibilika esimweni akukho agglomeration, ngoba ekhoneni elincane ngalinye kancane kancane HPMC powder, lapho amanzi ngeke ngokushesha chaza - lolu hlobo lwendlela nje isicelo kwangaphakathi odongeni putty powder kanye nosimende abakhiqizi. [HPMC] njenge-ejenti yokudonsa kanye ne-ejenti ethambisayo odongeni lwe-putty odongeni lwangaphakathi.
Lena i-hydroxypropyl methyl cellulose ejwayelekile (HMPC) izinyembezi zokwenziwa, eziseduze nento ebonakala i-viscoelastic (ikakhulukazi i-mucin) ngezinyembezi. Inamathela ebusweni beso ngokusebenzisa i-polymer, futhi ilingise indima ye-conjunctival mucin, ukuze kuthuthukiswe isimo esincishisiwe se-mucin esweni futhi andise umphumela wokumanzisa i-cornea.
Ku-putty powder, ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa kwemisebenzi emithathu. Ukuqina, i-cellulose ingaqiniswa ukuze imiswe, ukuze ikhambi lihlale lifana phezulu naphansi indima yokulengiswa kokulwa nokugeleza. Ukugcinwa kwamanzi: yenza i-putty powder yome kancane, isiza se-calcium empunga esenzweni sokusabela kwamanzi. Ukwakhiwa: i-cellulose lubrication, ingenza i-putty powder inokwakhiwa okuhle. I-HPMC ayibambi iqhaza kunoma yikuphi ukusabela kwamakhemikhali, kodwa idlala indima yokusekela kuphela.
Upende we-texture uguquguquka kakhulu ekukhethweni kombala, futhi ungafinyelela umphumela omuhle wokuklama wobuciko, futhi upende wamatshe wangempela ekuphishekeleni ukuphila okungokwemvelo, ungcono kunopende wokuthungwa, ngamunye unamandla ayo. Ukupenda kwe-texture kanye ne-lacquer ekukhiqizeni, ukuze kugcinwe unomphela umbala wangempela, ngokuvamile enkambweni yokugcina, kufanele sisebenzise i-varnish (amafutha alula) ukuze sifafaze ukuvikela umphumela wabo wobuciko noma umphumela wamatshe.
I-Lacquer, upende wokuthungwa uwuhlobo lopende, olusetshenziselwa ikakhulukazi ukuhlobisa udonga. Iwebhusayithi esemthethweni yodaka lwe-diatom ifingqa umehluko othile phakathi kopende wokuthungwa kanye ne-lacquer, upende wokuthungwa kanye nendlela yokuhlukanisa i-lacquer, okulandelayo okuqondile ukuze ubone umehluko phakathi kwe-lacquer nopende wokuthungwa.
Izintengo eziphakeme ze-latex ezisezingeni eliphakeme, abakhiqizi ukuze bonge izindleko, vele wengeze inani elincane lengxenye ye-emulsion, ngemuva kokwenza upende lwamatshe ngempela ifilimu elomile elixegayo, ukuminyana okwanele, ifilimu kapende iyizinga elibi kakhulu, amandla okucindezela ayancipha, kanye ukuhlangabezana sezulu sezulu isikhathi eside, imvula izongena ifilimu ngopende, itshe ngempela ngopende omhlophe.
Abanye abakhiqizi ekwakhiweni kwe-lacquer, bavame ukufaka i-carboxymethyl cellulose eningi, i-hydroxyethyl cellulose njenge-thickener, lezi zinto ziyi-soluble yamanzi noma i-hydrophilic, ifilimu yokugqoka eshiywe kungqimba, inciphisa kakhulu ukumelana kwamanzi kwe-coating.
Isikhathi sokuthumela: Jun-09-2022