I-Hydroxypropyl starch ether (HPS)kwayei-cellulose etherzizongezo ezimbini eziqhelekileyo zeekhemikhali zokwakha, ezisetyenziswa ngokubanzi kwizinto zokwakha, ezifana nodaka, i-putty powder, iingubo, njl. , iziphumo zesicelo, kunye neendleko.
1. Imithombo yezinto ezikrwada kunye nesakhiwo sekhemikhali
I-Hydroxypropyl starch ether (HPS)
I-HPS isekwe kwisitatshi sendalo kwaye ifunyenwe ngokusabela kokuguqulwa kwe-etherification. Izinto zayo eziphambili ngumbona, ingqolowa, iitapile kunye nezinye izityalo zendalo. Iimolekyuli zesitashi zenziwe ngeeyunithi ze-glucose ezidityaniswe ngamabhondi e-α-1,4-glycosidic kunye nenani elincinci le-α-1,6-glycosidic bonds. Emva kwe-hydroxypropylation, iqela le-hydrophilic hydroxypropyl lingeniswa kwisakhiwo se-molecular ye-HPS, inika ukuqina okuthile, ukugcinwa kwamanzi kunye nemisebenzi yokuguqulwa.
i-cellulose ether
I-cellulose ethers ithathwe kwi-cellulose yendalo, efana nomqhaphu okanye umthi. I-Cellulose iqulunqwe ngeeyunithi ze-glucose ezidityaniswe yi-β-1,4-glycosidic bonds. I-cellulose ethers eziqhelekileyo zibandakanya i-hydroxypropyl methylcellulose (HPMC), i-methylcellulose (MC), i-hydroxyethyl cellulose (HEC), njl.
2. Iimpawu ezibonakalayo
Iimpawu zokusebenza ze-HPS
Ukujiya: I-HPS inesiphumo esihle sokujiya, kodwa xa ithelekiswa ne-cellulose ether, ukujiya kwayo kuba buthathaka kancinci.
Ukugcinwa kwamanzi: I-HPS inokugcinwa kwamanzi okuphakathi kwaye ifanelekile kwizinto zokwakha eziphantsi ukuya kuluhlu oluphakathi.
Ukusebenza: I-HPS inokuphucula ukusebenza kodaka kunye nokunciphisa ukuchithwa ngexesha lokwakha.
Ukuxhathisa ubushushu: I-HPS ivakalelwa kakhulu kubushushu kwaye ichatshazelwa kakhulu bubushushu bendawo.
Iimpawu zokusebenza ze-cellulose ethers
Ukuqina: I-ether yeCellulose inefuthe eliqinileyo kwaye inokunyusa kakhulu i-viscosity yodaka okanye i-putty.
Ukugcinwa kwamanzi: I-ether ye-cellulose ineempawu ezibalaseleyo zokugcina amanzi, ngokukodwa kwiindawo eziphezulu zokushisa, ezinokwandisa ixesha lokuvula udaka kunye nokuthintela ukulahlekelwa kwamanzi amaninzi.
Ukusebenza: I-ether ye-cellulose igqwesileyo ekuphuculeni ukusebenza kwaye inokunciphisa ngempumelelo iingxaki ezinjengokuqhekeka kunye nomgubo.
Ukumelana nobushushu: I-ether ye-Cellulose inokuguquguquka okunamandla kutshintsho lobushushu kunye nokusebenza okuzinzileyo.
3. Iziphumo zokusetyenziswa
Isiphumo sosetyenziso lweHPS
Kudaka olomileyo, i-HPS ikakhulu idlala indima yokuphucula ukusebenza, ukuphucula ukugcinwa kwamanzi, kunye nokunciphisa i-delamination kunye nokwahlula. Inoqoqosho kwaye ifanelekile ukuba isetyenziswe kwiimeko ezineemfuno zolawulo lweendleko eziphezulu, ezifana nesiqhelo sangaphakathi sodonga lwe-putty powder, i-floor leveling mortar, njl.
Isiphumo sokusetyenziswa kwe-cellulose ether
I-cellulose etherszisetyenziswa ngokubanzi kwiindonga eziphezulu zokusebenza, i-adhesives tile, izinto ezisekelwe kwi-gypsum kunye neenkqubo zangaphandle zokugquma iindonga. Ukuqina kwayo okuphezulu kunye nokugcinwa kwamanzi kwiipropati kunokuphucula kakhulu amandla okubambisana kunye nokusebenza okuchasene ne-anti-slip yezinto eziphathekayo, kwaye zifaneleke ngokukodwa kwiiprojekthi ezineemfuno eziphezulu ekusebenzeni kokwakhiwa kunye nomgangatho wemveliso ogqityiweyo.
4. Iindleko kunye nokukhuselwa kwendalo
ixabiso:
I-HPS inexabiso eliphantsi kwaye ikulungele ukusetyenziswa kwiimarike ezingevani namaxabiso. I-cellulose ethers zibiza kakhulu, kodwa zisebenza kakuhle kwaye zinendleko kwiiprojekthi zokwakha ezifunwayo.
Ukhuseleko lokusingqongileyo:
Zomibini ziphuma kwizinto zendalo kwaye zineendawo ezintle zokusingqongileyo. Nangona kunjalo, ngenxa yokuba ii-reagents zeekhemikhali ezimbalwa zisetyenzisiweyo kwinkqubo yokuvelisa i-HPS, umthwalo wayo wokusingqongileyo unokuba ngaphantsi.
5. Isiseko sokhetho
Iimfuno zokusebenza: Ukuba uneemfuno eziphezulu zokuqina kunye nokugcinwa kwamanzi kwiipropati, kufuneka ukhethe i-cellulose ether; kwiimathiriyeli ezingabizi kakhulu kodwa zifuna uphuculo oluthile ekusebenzeni, ungaqwalasela ukusebenzisa i-HPS.
Iimeko zokusetyenziswa: Ukwakhiwa kobushushu obuphezulu, ukugquma udonga lwangaphandle, i-tile adhesive kunye nezinye iimeko ezifuna inkxaso ephezulu yokusebenza zifanelekile ngakumbi kwi-cellulose ether; kwi-putty yangaphakathi yodonga oluqhelekileyo okanye udaka olusisiseko, i-HPS inokubonelela ngezisombululo zezoqoqosho kunye nezisebenzayo.
Hydroxypropyl starch etherkwayei-cellulose ether ngamnye uneengenelo zakhe kwaye badlala indima eyahlukileyo kwizinto zokwakha. Ukhetho kufuneka luqwalaselwe ngokubanzi ngokusekelwe kwiimfuno zokusebenza, ulawulo lweendleko, indawo yolwakhiwo kunye nezinye izinto zeprojekthi ethile ukuze kuphunyezwe umphumo wokusetyenziswa kakuhle.
Ixesha lokuposa: Nov-21-2024