Amanyathelo emveliso kunye nemimandla yokusetyenziswa kwe-HPMC

1. Intshayelelo ngeHydroxypropyl Methylcellulose (HPMC)

IHydroxypropyl Methylcellulose (HPMC)yi-ether ye-cellulose engekho i-ionic eyenziwe kwi-cotton fiber yendalo okanye i-pulp yomthi ngokuguqulwa kweekhemikhali. I-HPMC inokunyibilika kakuhle kwamanzi, ukutyeba, uzinzo, iipropati zokwenza ifilimu kunye nokuhambelana kwezinto eziphilayo, ngoko isetyenziswa ngokubanzi kulwakhiwo, amayeza, ukutya, imichiza yemihla ngemihla kunye nezinye iindawo.

2. Amanyathelo emveliso ye-HPMC

Ukuveliswa kweHPMC ikakhulu kubandakanya la manyathelo abalulekileyo alandelayo:

Ukulungiselela izinto ezikrwada

Eyona nto iphambili ekrwada ye-HPMC yi-cellulose yendalo ecocekileyo ephezulu (idla ngokusuka kumqhaphu okanye i-pulp yomthi), efuna unyango lwangaphambili lokususa ukungcola kunye nokuqinisekisa ukucoceka kunye nokufana kweselulosi.

Unyango lwe-alkalilization

Beka i-cellulose kwi-reactor kwaye wongeze umlinganiselo ofanelekileyo we-sodium hydroxide (NaOH) isisombululo sokudumba i-cellulose kwindawo ye-alkaline ukwenza i-alkali cellulose. Le nkqubo inokunyusa umsebenzi we-cellulose kwaye ilungiselele ukusabela kwe-etherification elandelayo.

Ukusabela kwe-Etherification

Ngokusekwe kwi-alkali cellulose, i-methylating agents (ezifana ne-methyl chloride) kunye nee-agent ze-hydroxypropylating (ezifana ne-propylene oxide) ziyaziswa ukuze zenze i-etherification reaction. Ukusabela ngokuqhelekileyo kuqhutyelwa kwi-reactor yoxinzelelo oluphezulu oluvaliweyo. Kwiqondo elithile lobushushu kunye noxinzelelo, amaqela e-hydroxyl kwi-cellulose athatyathwa ngamaqela e-methyl kunye ne-hydroxypropyl ukwenza i-hydroxypropyl methylcellulose.

Ukuhlamba ngokungathathi hlangothi

Emva kokuphendula, imveliso inokuthi iqulethe ii-reagents zeekhemikhali ezingaphendulwanga kunye neemveliso, ngoko ke kuyimfuneko yokongeza isisombululo se-asidi ukwenzela unyango lwe-neutralization, kwaye emva koko uhlambe ngamanzi amaninzi okanye i-solvent ye-organic ukususa izinto eziseleyo ze-alkali kunye nokungcola.

Ukuphelelwa ngamanzi emzimbeni kunye nokomisa

Isisombululo se-HPMC esihlanjwe si-centrifuged okanye sihluzwe ukuze sisuse amanzi angaphezulu, kwaye emva koko iteknoloji yokomisa iqondo eliphantsi isetyenziselwa ukwenza umgubo owomileyo okanye iiflakes ukugcina iipropati zomzimba kunye neekhemikhali ze-HPMC.

Ukugaya kunye nokucoca

I-HPMC eyomileyo ithunyelwa kwisixhobo sokugaya ukutyumza ukufumana i-HPMC powder yobukhulu obuhlukeneyo. Emva koko, ukuhlolwa kunye nokuhlelwa kwenziwa ukuqinisekisa ukufana kwemveliso ukuhlangabezana neemfuno ezahlukeneyo zesicelo.

Ukupakishwa kunye nokugcinwa

Emva kokuhlolwa komgangatho, imveliso yokugqibela ipakishwa ngokweendlela ezahlukeneyo zokusetyenziswa (ezifana ne-25kg/ibhegi) kwaye igcinwe kwindawo eyomileyo nengena umoya ukunqanda ukufuma okanye ukungcoliseka.

3. Iindawo ezisetyenziswayo eziphambili zeHPMC

Ngenxa yokuqina kwayo okuhle, ukwenza ifilim, ukugcina amanzi, ukumilisela kunye neempawu ezihambelana nebhayoloji, iHPMC isetyenziswe ngokubanzi kumashishini amaninzi:

Ishishini lokwakha

I-HPMC sisongezo esibalulekileyo kwizinto zokwakha, ezisetyenziselwa ikakhulu:

Udaka lwesamente: phucula ubumanzi bokwakha, phucula ukuncamathela, kwaye uthintele ilahleko enkulu yamanzi.

I-adhesive ye-tile: ukwandisa ukugcinwa kwamanzi kwi-adhesive tile kunye nokuphucula ukusebenza kokwakhiwa.

Iimveliso zeGypsum: ukuphucula ukumelana nokuqhekeka kunye nokusebenza kokwakhiwa.

I-Putty powder: ukuphucula ukunamathela, ukuxhathisa ukuqhekeka kunye nokukwazi ukuchasana nokuguqa.

Umgangatho wokuzilinganisa: phucula ubumanzi, ukuxhathisa ukunxiba kunye nokuzinza.

Ishishini lamachiza

I-HPMC isetyenziswa ngokubanzi kwintsimi yamachiza njenge:

Ukwambathisa kunye ne-ejenti yokwenza ifilimu kwiipilisi zamachiza: ukuphucula ukuzinza kweziyobisi kunye nokulawula izinga lokukhutshwa kweziyobisi.

Ukukhutshwa okuzinzileyo kunye namalungiselelo okukhululwa okulawulwayo: asetyenziswe kwiipilisi zokukhululwa okuqhubekayo kunye neegobolondo ze-capsule ezilawulwayo zokulawula ukukhutshwa kweziyobisi.

I-Capsule substitutes: isetyenziswe ekwenzeni ii-capsules zemifuno (ii-capsules zemifuno).

4. Ishishini lokutya

I-HPMC isetyenziswa njengesongezo sokutya ikakhulu:

I-Thickener kunye ne-emulsifier: isetyenziselwa kwizinto ezibhakiweyo, iijeli, iisosi, njl.njl. ukuphucula incasa yokutya.

I-Stabilizer: isetyenziswa kwi-ayisikrimu kunye neemveliso zobisi ukunqanda imvula yeprotheyini.

Ukutya kweVegetarian: kusetyenziswe njengesityebi sokutya okusekelwe kwizityalo ukuze kuthathelwe indawo iziqinisekiso ezivela kwizilwanyana ezifana negelatin.

Ishishini lemichiza yemihla ngemihla

I-HPMC sisithako esibalulekileyo kwizinto zokuthambisa kunye neemveliso zokhathalelo lomntu:

Imveliso yokunakekelwa kwesikhumba: isetyenziswe kwi-lotions, iimaski zobuso, njl.

I-Shampoo kunye ne-gel yokugeza: ukwandisa ukuzinza kwe-foam kunye nokuphucula i-viscosity.

Intlama yamazinyo: isetyenziswa njengesityebi kunye nesithambisa ukuphucula incasa.

Iipeyinti kunye neenki

I-HPMC ineempawu ezilungileyo zokwenza ifilim kunye nozinzo lokunqunyanyiswa kwaye ingasetyenziselwa:

Ipeyinti yeLatex: ukuphucula i-brushability kunye ne-rheology yepeyinti kunye nokukhusela imvula.

I-Ink: Ukuphucula i-rheology kunye nokuphucula umgangatho wokushicilela.

Ezinye izicelo

I-HPMC ingasetyenziselwa:

Umzi-mveliso weCeramic: Njengomdibanisi, phucula amandla ee-ceramic blanks.

EzoLimo: Isetyenziswa ekumisweni kwamayeza okubulala izitshabalalisi kunye nokugqunywa kwembewu ukuphucula ukuzinza kwearhente.

Umzi-mveliso wokwenza iphepha: Njenge-ejenti yokulinganisa, phucula ukuxhathisa kwamanzi kunye nokuprintwa kwephepha.

HPMCyinto esetyenziswa ngokubanzi kwipolymer esebenzayo, esetyenziswa ngokubanzi kulwakhiwo, amayeza, ukutya, imichiza yemihla ngemihla, iingubo kunye namanye amashishini. Inkqubo yayo yokuvelisa ibandakanya ukulungiswa kwezinto eziluhlaza, i-alkalization, i-etherification, ukuhlamba, ukomisa, ukugaya kunye namanye amanyathelo, ikhonkco ngalinye lichaphazela umgangatho wemveliso yokugqibela. Ngokuphuculwa kweemfuno zokhuseleko lokusingqongileyo kunye nokukhula kwemfuno yemarike, iteknoloji yemveliso ye-HPMC nayo iyaphuculwa ukuhlangabezana neemfuno zamashishini amaninzi.