Hydroxypropyl methyl cellulose HPMC ikakhulu ine viscosities ezintathu, HPMC-100000, HPMC-150000, kunye HPMC-200000 viscosity. Ngokuqhelekileyo, i-hydroxypropyl methyl cellulose ene-viscosity ye-100,000 isetyenziswa ngokuqhelekileyo ekuveliseni i-putty powder yangaphakathi nangaphandle. I-Cellulose ine-viscosity ye-200,000 kwaye isetyenziswa kwizinto zokwakha ezifana nodaka olomileyo, udaka lwamatye olulula, udaka lwe-diatom, kunye nokufakwa eludongeni. Imveliso inesiphumo esihle sokugcina amanzi, isiphumo esihle sokuqina, umgangatho ozinzile kunye nexabiso elifanelekileyo.
IHydroxypropyl methylcellulose HPMC isetyenziswa ngokubanzi kushishino lwezixhobo zokwakha. Isixa esikhulu se-cellulose sinokusetyenziswa njenge-retarder, i-arhente yokugcina amanzi, i-thickener kunye ne-binder. I-Cellulose ether idlala indima ebalulekileyo kudaka oluqhelekileyo lomxube owomileyo, udaka lokugquma eludongeni olusebenza kakuhle kakhulu, udaka oluzilinganisa ngokwalo, udaka olomileyo oluncamathelayo, ithayile yeceramic edibanisa udaka olomileyo, iputty yokwakha esebenza kakhulu, ngaphakathi nangaphandle ukumelana nokuqhekeka. iputty eludongeni, njl. njl izixhobo. Zinempembelelo ebalulekileyo kugcino lwamanzi, iimfuno zamanzi, ukuvakala, ukulibaziseka kunye nokusebenza kweenkqubo zestucco. I-cellulose ethers esetyenziswa ngokuqhelekileyo kwintsimi yokwakha ibandakanya i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC, njl.
I-Nonionic water-soluble cellulose ethers ziluncedo izongezo zemathiriyeli yokwakha ngenxa yeempawu zabo zokubopha, ukuzinza kwe-dispersion, kunye nokukwazi ukugcina amanzi. I-HPMC, i-MC okanye i-EHEC isetyenziselwa ulwakhiwo oluninzi lwesamente okanye lwegypsum, olufana nodaka lwesamente, udaka lwesamente, udaka lwesamente, igypsum, umxube we-cementitious kunye ne-emulsion putty, njl., enokuphucula ukusasazwa kwesamente okanye isanti kunye nokuphucula kakhulu. i-adhesion , ebaluleke kakhulu kwi-plaster, i-tile samente kunye ne-putty. Kwi-samente, i-HEC ayikho nje i-retarder, kodwa i-arhente yokugcina amanzi. I-HEHPC nayo inale njongo. I-cellulose ethers idla ngokusetyenziswa ngokudityaniswa neegluconate kudaka njengezongezo ezixabisekileyo ze-retarder. I-MC okanye i-HEC kunye ne-CMC zihlala zisetyenziswa njengenxalenye eqinileyo yephepha lodonga. I-cellulose ethers ephakathi okanye ephezulu ye-viscosity isetyenziswa ngokuqhelekileyo kwi-adhesives yamaphephadonga kunye nezinto zokwakha.
Imveliso ye-Hydroxypropyl methylcellulose ye-HPMC idibanisa iipropati ezininzi zomzimba kunye neekhemikhali ukuze ibe yimveliso ekhethekileyo enokusetyenziswa ngeendlela ezininzi. Iipropati ezahlukeneyo zezi zilandelayo:
(1) Ugcino lwamanzi: Inokugcina ukufuma kwindawo enemingxuma efana neebhodi zesamente eludongeni nezitena.
(2) Iimpawu zokwenza ifilimu: Inokwenza ifilimu ecacileyo, eqinile, ethambileyo enokumelana neoli.
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(4) I-Thermal Gelation: Xa isisombululo samanzi salo mveliso sishushu, senza i-gel kwaye siphendulela isisombululo emva kokupholisa.
(5) Umsebenzi womphezulu: Ukubonelela ngomsebenzi ongaphezulu kwisisombululo sokufezekisa i-emulsification ye-colloidal efanelekileyo kunye nokukhusela, kunye nokuzinza kwesigaba.
(6) I-ejenti yokumisa: I-Hydroxypropyl methylcellulose inokuthintela amaqhekeza aqinileyo ekuhlaliseni, ngaloo ndlela inqanda ukubunjwa kwe-precipitates.
(7) I-colloid ekhuselayo: Iyakwazi ukuthintela amaconsi kunye namaqhekeza ukuba adibanise okanye adibanise.
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(10) I-inertness ye-Nonionic: Le mveliso i-nonionic cellulose ether kwaye ayidibanisi neetyuwa zetsimbi okanye ezinye ii-ion ukwenza i-precipitates engaxutywanga.
(11) Ukuzinza kwe-Acid-base: ilungele ukusetyenziswa ngaphakathi koluhlu lwe-pH lwe-3.0-11.0.
(12) Ayinancasa kwaye ayinavumba, ayichatshazelwa yimetabolism; zisetyenziswe njengezongezo zokutya kunye namayeza, aziyi-metabolized ekutyeni kwaye aziboneleli ngeekhalori.
Ngoko ke, i-hydroxypropyl methylcellulose HPMC ithatha indawo ebalulekileyo kwishishini lokwakha, kwaye i-cellulose eluhlaza iya kusetyenziswa ngokubanzi kwishishini lokwakha. Umgangatho ophezulu, amaxabiso akhethekileyo kunye neenkonzo ezingcono yizinto ezihlala zilandela i-cellulose kunye nabavelisi be-latex powder. Usuku lwexesha elizayo lubambelela kwifilosofi yoshishino "yokusinda ngokomgangatho, uphuhliso lwesayensi kunye neteknoloji, imarike ngegama, kunye nokusebenza kakuhle ngabaphathi". I-hydroxypropyl methylcellulose yethu, i-latex powder, kunye ne-hydroxyethyl cellulose zibonelela ngeemveliso ezikumgangatho ophezulu kubathengi abaninzi.
Ixesha lokuposa: Feb-02-2024