Intshayelelo yeHydroxypropyl Methyl Cellulose
IHydroxypropyl methylcellulose, ekwaziwa ngokuba yi-hypromellose kunye ne-HPMC cellulose hydroxypropyl methyl ether, yenziwe ngeselulosi yomqhaphu esulungekileyo kakhulu njengesixhobo ekrwada, esenziwa i-etherified ngokukodwa phantsi kweemeko zealkaline.I-HPMC ngumgubo omhlophe, ongenancasa, ongenavumba, ongenabungozi, awutshintshi ngokupheleleyo emzimbeni womntu kwaye ukhutshwe emzimbeni.Imveliso iyanyibilika emanzini, kodwa ayinyibiliki emanzini ashushu.Isisombululo esinamanzi yinto engenambala ecacileyo ye-viscous.I-HPMC inokuqina okugqwesileyo, i-emulsifying, ukwenza ifilimu, ukusabalalisa, i-colloid yokukhusela, ukugcinwa kokufuma, ukunamathela, ukuxhathisa i-asidi kunye ne-alkali, ukuxhathisa i-enzyme kunye nezinye iipropati, kwaye isetyenziswa ngokubanzi kulwakhiwo, iingubo, amayeza, ukutya, iingubo, amasimi yeoli, izinto zokuthambisa, ii-Agents zokuhlamba, iiseramikhi, ii-inki kunye neenkqubo zokupholisa iikhemikhali.
1. I-calcium ephantsi ye-calcium e-gray kunye nomlinganiselo ongafanelekanga we-CaO kunye ne-Ca (OH) 2 kwi-gray calcium iya kubangela ukulahleka kwe powder.Ukuba inento yokwenza ne-HPMC, ngoko ukuba ukugcinwa kwamanzi kwe-HPMC kubi, kuya kubangela ukulahlekelwa ngumgubo.Ngaba i-powder loss of putty powder ehambelana ne-hydroxypropyl methylcellulose?Ukulahlekelwa ngumgubo we-putty powder kuhambelana ikakhulu nomgangatho we-ash calcium, kwaye ayinanto encinci ne-HPMC.
2. Umsebenzi obaluleke kakhulu we-hydroxypropyl methylcellulose kukugcinwa kwamanzi, kulandelwa ukuqina.Kwi-putty powder, ngokude nje ukugcinwa kwamanzi kulungile kwaye i-viscosity iphantsi (i-70,000-80,000), nayo inokwenzeka.Ngokuqinisekileyo, ukuphakama kwe-viscosity, ngcono ukugcinwa kwamanzi okuhambelanayo.Xa i-viscosity idlula i-100,000, i-viscosity iya kuchaphazela ukugcinwa kwamanzi.Akusekho kakhulu.
Yintoni i-viscosity ye-hydroxypropyl methylcellulose (HPMC)?
I-Putty powder iqhele ukuba yi-yuan eyi-100,000, kwaye iimfuno zodaka ziphezulu, kwaye i-yuan eyi-150,000 iyafuneka ukuze isetyenziswe lula.
3. Zeziphi ezona mathiriyeli ziphambili ze-hydroxypropyl methylcellulose?Izinto eziphambili ze-hydroxypropyl methylcellulose (HPMC): i-cotton ecocekileyo, i-methyl chloride, i-propylene oxide, kunye nezinye izinto eziluhlaza, i-caustic soda, i-asidi, i-Toluene, i-isopropanol, njl.
4. Yintoni isizathu sevumba le-hydroxypropyl methylcellulose?I-hydroxypropyl methylcellulose eveliswa yindlela ye-solvent isebenzisa i-toluene kunye ne-isopropanol njenge-solvents.Ukuba ukuhlamba akukuhle kakhulu, kuya kubakho iphunga elishiyekileyo .
5. I-Hydroxypropyl methylcellulose: Lowo unomxholo ophezulu we-hydroxypropyl ngokuqhelekileyo ungcono ekugcinweni kwamanzi.Lowo une-viscosity ephezulu unokugcinwa kwamanzi okungcono, ngokuthelekiswa (kungekhona ngokupheleleyo), kwaye lowo une-viscosity ephezulu isetyenziswe ngcono kwi-cement mortar.Zeziphi iimpawu eziphambili zobugcisa?Umxholo weHydroxypropyl kunye ne-viscosity, abaninzi abasebenzisi banenkxalabo malunga nezi zikhombisi zimbini.
Ngaba isenzeko se-efflorescence kudaka ezinxulumene ne-hydroxypropyl methylcellulose?
Ngexesha elidlulileyo, umthengi wathi le mveliso ine-efflorescence, kwaye wayetshiza.I-Shotcrete: Umsebenzi ophambili kukugubungela umva, i-roughen, kunye nokwandisa ukunamathela phakathi kodonga kunye nezinto ezingaphezulu.Sebenzisa kancinci kakhulu, vele utshize umaleko omncinci eludongeni.Nanku umfanekiso we-efflorescence phenomenon endithunyelwe ngumthengi: Umfanekiso Indlela yam yokuqala yokusabela kukuba ngokuqinisekileyo ayiyena unobangela we-hydroxypropyl methylcellulose, kuba i-hydroxypropyl methylcellulose ayihambelani nayo nantoni na kwirhuluwa esabelayo.Kwaye i-phenomenon ye-efflorescence yile: ikhonkrithi eqhelekileyo i-silicate, xa idibana nomoya okanye umswakama eludongeni, i-ion silicate ifumana impendulo ye-hydrolysis, kwaye i-hydroxide eveliswayo idibanisa kunye ne-ion zetsimbi ukwenza i-hydroxide ene-solubility ephantsi (iipropati zeekhemikhali I-alkaline) , xa iqondo lokushisa liphakama, umphunga wamanzi uphuphuma, kwaye i-hydroxide iyancipha ukusuka eludongeni.Ngomphunga ocothayo wamanzi, i-hydroxide iyancipha kumphezulu wesamente yekhonkrithi, eqokelela ngokuhamba kwexesha, yenza ukuhlobisa kwasekuqaleni Xa ipeyinti okanye ipeyinti iphakanyiselwe phezulu kwaye ayisayi kubambelela eludongeni, imhlophe, ixobula, kwaye ukuxobuka kuya kwenzeka.Le nkqubo ibizwa ngokuba yi "pan-alkali".Ke ayisiyiyo i-ubiquinol ebangelwa yi-hydroxypropyl methylcellulose
Umthengi uphinde wakhankanya isenzeko: i-grout etshiziweyo ayenzileyo iya kuba ne-pan-alkaline phenomenon kudonga lwekhonkrithi, kodwa ayiyi kuvela kudonga lwezitena ezivuthayo, ebonisa ukuba i-silicon kwisamente esetyenziswe eludongeni lwekhonkrithi Iityuwa (i-alkaline ngamandla iityuwa) ziphezulu kakhulu.I-efflorescence ebangelwa kukuba ngumphunga wamanzi asetyenziswa kwi-spray grouting.Nangona kunjalo, akukho silicate eludongeni lwezitena ezitshisiweyo kwaye akukho efflorescence iya kwenzeka.Ke isenzeko se-efflorescence asinanto yakwenza nokutshiza.
Isisombululo:
1. Umxholo we-silicate we-samente yekhonkrithi yesiseko uyancitshiswa.
2. Sebenzisa i-anti-alkali back coating agent, isisombululo singena kwilitye ukuvala i-capillary, ukuze amanzi, i-Ca (OH) 2, ityuwa kunye nezinye izinto zingenako ukungena, kwaye zinqumle indlela ye-pan-alkaline phenomenon.
3. Ukuthintela ukungena kwamanzi, kwaye ungafafazi amanzi amaninzi ngaphambi kokwakhiwa.
Unyango lwe-pan-alkaline phenomenon:
I-ejenti yokucoca ilitye efflorescence kwimarike ingasetyenziswa.Le arhente yokucoca ilulwelo oluguquguqukayo olungenambala olwenziwe ngama-non-ionic surfactants kunye nezinyibilikisi.Unempembelelo ethile ekucoceni kwezinye iindawo zamatye zendalo.Kodwa ngaphambi kokusetyenziswa, qiniseka ukuba wenze ibhloko encinci yokuvavanya isampula ukuvavanya umphumo kwaye uthathe isigqibo sokuba uyayisebenzisa.
Ukusetyenziswa kweCellulose kuShishino loKwakha
1. Udaka lwesamente: Ukuphucula ukusasazwa kwesamente-isanti, phucula kakhulu iplastiki kunye nokugcinwa kwamanzi kwidaka, ibe nefuthe ekuthinteleni iintanda, kwaye ukhulise amandla e-samente.
2. I-tile ye-cement: phucula iplastiki kunye nokugcinwa kwamanzi kwi-tile ye-tile ecinezelekileyo, ukuphucula ukunamathela kweetayile, kunye nokuthintela ukutshixa.
3. Ukugqunywa kwezinto eziphikisayo ezifana ne-asbestos: njenge-agent yokumisa, i-agent yokuphucula i-fluidity, kunye nokuphucula amandla okudibanisa kwi-substrate.
4. I-Gypsum coagulation slurry: ukuphucula ukugcinwa kwamanzi kunye nokucutshungulwa, kunye nokuphucula ukunamathela kwi-substrate.
5. I-samente edibeneyo: yongezwa kwi-samente edibeneyo yebhodi ye-gypsum ukuphucula i-fluidity kunye nokugcinwa kwamanzi.
6. I-Latex putty: ukuphucula ukumanzi kunye nokugcinwa kwamanzi kwi-resin latex-based putty.
7. I-Stucco: Njenge-paste yokutshintsha iimveliso zendalo, inokuphucula ukugcinwa kwamanzi kunye nokuphucula amandla okudibanisa kunye ne-substrate.
8. Iingubo: Njenge-plasticizer ye-latex coatings, inokuphucula ukusebenza kunye nokuguquguquka kweengubo kunye ne-putty powders.
9. Ukutshiza ipeyinti: Inefuthe elihle ekuthinteleni ukutshona kwesamente okanye izinto zokutshiza zelatex kunye nezihluzi kunye nokuphucula ubumanzi kunye nepateni yokutshiza.
10. Iimveliso zeSekondari zesamente kunye negypsum: isetyenziswe njenge-extrusion molding binder ye-cement-asbestos kunye nezinye izinto ze-hydraulic zokuphucula i-fluidity kunye nokufumana iimveliso ezibunjiweyo ezifanayo.
11. Udonga lweFiber: Ngenxa ye-anti-enzyme kunye ne-anti-bacterial effect, iyasebenza njenge-binder yeendonga zesanti.
12. Abanye: Ingasetyenziswa njenge arhente yokugcina iqamza lomoya (uguqulelo lwePC) kudaka lwesanti yodongwe olucekethekileyo kunye nodaka lwe-hydraulic operator.
Izicelo kushishino lweekhemikhali
1. I-polymerization ye-vinyl chloride kunye ne-vinylidene: Njenge-stabilizer yokumiswa kunye ne-dispersant ngexesha le-polymerization, ingasetyenziselwa kunye ne-vinyl alcohol (PVA) i-hydroxypropyl cellulose (HPC) ukulawula i-particle shape kunye nokusabalalisa i-particle.
2. I-Adhesive: Njenge-adhesive for wallpaper, inokusetyenziswa kunye ne-vinyl acetate latex ipeyinti endaweni yesitatshi.
3. I-Pesticides: Yongezwa kwi-insecticide kunye ne-herbicides, inokuphucula umphumo wokubambelela xa utshiza.
4. I-Latex: I-Emulsion stabilizer ye-asphalt latex, i-thickener yerabha ye-styrene-butadiene (SBR) latex.
5. Isibophelelo: njengesibophelelo esenzela iipensile neekhrayoni.
Izicelo kushishino lwezithambiso
1. I-Shampoo: Ukuphucula i-viscosity ye-shampoo, i-detergent, kunye ne-arhente yokucoca kunye nokuzinza kwamaqamza.
2. Intlama yamazinyo: Phucula ukumanzi kwentlama yamazinyo.
Izicelo kwishishini lamayeza
1. I-encapsulation: I-ejenti ye-encapsulation yenziwe kwisisombululo se-solvent ephilayo okanye isisombululo samanzi sokulawulwa kweziyobisi, ngokukodwa kwi-spray encapsulation ye-granules elungiselelwe.
2. I-ejenti ephantsi: i-2-3 grams ngosuku, i-1-2G rhoqo, umphumo uya kubonakala kwiintsuku ze-4-5.
3. I-Eye drops: Ekubeni uxinzelelo lwe-osmotic ye-methylcellulose isisombululo se-aqueous sifana neenyembezi, ayicaphuki kangako emehlweni, ngoko yongezwa kwi-eye drops njenge-lubricant yokuqhagamshelana ne-lens ye-eyeball.
4. Ijeli: njengesiseko se-jelly-like iyeza langaphandle okanye i-ointment.
5. Iyeza lokuntywila: njenge-thickener, i-arhente yokugcina amanzi
Ixesha lokuposa: Nov-17-2022