I-Hydroxypropyl starch ether (HPS)kwayei-cellulose etherzizinto ezimbini eziqhelekileyo zokongeza iikhemikhali zokwakha, ezisetyenziswa kakhulu kwizixhobo zokwakha, ezifana nodaka, umgubo we-putty, ii-coating, njl. Nangona zifana kwezinye iimpawu, kukho umahluko omkhulu kwiinkalo ezininzi ezifana nemithombo yezinto eziluhlaza, izakhiwo zeekhemikhali, iimpawu zomzimba, iziphumo zokusetyenziswa, kunye neendleko.
1. Imithombo yezinto eziluhlaza kunye nesakhiwo seekhemikhali
I-Hydroxypropyl starch ether (HPS)
I-HPS isekelwe kwisitatshi sendalo kwaye ifunyanwa nge-etherification modification reaction. Izinto zayo eziphambili zokwenza izinto zingumbona, ingqolowa, iitapile kunye nezinye izityalo zendalo. Iimolekyuli zesitatshi zenziwe ziiyunithi zeglucose ezidityaniswe ziibhondi ze-α-1,4-glycosidic kunye nenani elincinci leebhondi ze-α-1,6-glycosidic. Emva kwe-hydroxypropylation, iqela le-hydrophilic hydroxypropyl lifakwa kwisakhiwo se-HPS molecular, linika imisebenzi ethile yokutyeba, ukugcinwa kwamanzi kunye nokuguqulwa.
i-cellulose ether
Ii-ether ze-cellulose zivela kwi-cellulose yendalo, efana nekotoni okanye umthi. I-Cellulose yenziwe ngeeyunithi zeglucose ezidityaniswe ziibhondi ze-β-1,4-glycosidic. Ii-ether ze-cellulose eziqhelekileyo ziquka i-hydroxypropyl methylcellulose (HPMC), i-methylcellulose (MC), i-hydroxyethyl cellulose (HEC), njl. Ezi compounds zizisa izinto ezahlukeneyo ezithatha indawo ngokusebenzisa ii-etherification reactions kwaye zinozinzo oluphezulu lweekhemikhali kunye neempawu zomzimba.
2. Iimpawu ezibonakalayo
Iimpawu zokusebenza kwe-HPS
Ukuqina: I-HPS inefuthe elihle lokuqina, kodwa xa ithelekiswa ne-cellulose ether, amandla ayo okuqina abuthathaka kancinci.
Ukugcinwa kwamanzi: I-HPS inokugcinwa kwamanzi okuphakathi kwaye ifanelekile kwizixhobo zokwakha ezikumgangatho ophantsi ukuya kophakathi.
Ukusebenza: I-HPS inokuphucula ukusebenza kakuhle kwesamente kwaye inciphise ukugoba ngexesha lokwakha.
Ukumelana nobushushu: I-HPS inovelwano kakhulu kubushushu kwaye ichaphazeleka kakhulu bubushushu obungqongileyo.
Iimpawu zokusebenza kwee-ether ze-cellulose
Ukuqina: I-Cellulose ether inefuthe elinamandla lokuqina kwaye inokunyusa kakhulu i-viscosity ye-mortar okanye i-putty.
Ukugcinwa kwamanzi: I-Cellulose ether ineempawu ezintle zokugcina amanzi, ingakumbi kwiindawo ezinobushushu obuphezulu, nto leyo enokwandisa ixesha lokuvulwa kwe-mortar kwaye ithintele ukulahleka kwamanzi amaninzi.
Ukusebenziseka: I-Cellulose ether ilungile kakhulu ekuphuculeni ukusebenziseka kwaye inokunciphisa ngempumelelo iingxaki ezifana nokuqhekeka kunye nokugutywa.
Ukumelana nobushushu: I-cellulose ether iyakwazi ukuzivumelanisa notshintsho lobushushu kwaye iyasebenza ngendlela ezinzileyo.
3. Iziphumo zokusetyenziswa
Isiphumo sokusetyenziswa kweI-HPS
Kwi-mortar eyomileyo, i-HPS idlala indima yokuphucula ukusebenza kakuhle, ukuphucula ukugcinwa kwamanzi, kunye nokunciphisa ukuhlukana kunye nokwahlulwahlulwa. Ingabizi kwaye ifanelekile ukusetyenziswa kwiimeko ezineemfuno zolawulo oluphezulu, ezifana nomgubo oqhelekileyo we-wall putty wangaphakathi, i-mortar yokulinganisa umgangatho, njl.
Isiphumo sesicelo se-cellulose ether
Ii-ether ze-celluloseZisetyenziswa kakhulu kwiimortars ezisebenza kakuhle, ii-adhesives zethayile, izinto ezisekwe kwi-gypsum kunye neenkqubo zokukhusela udonga lwangaphandle. Iimpawu zayo ezigqwesileyo zokuqina kunye nokugcina amanzi zinokuphucula kakhulu amandla okubopha kunye nokusebenza okungatyibiliki kwezinto, kwaye zifanelekile ngakumbi kwiiprojekthi ezineemfuno eziphezulu zokusebenza kolwakhiwo kunye nomgangatho wemveliso egqityiweyo.
4. Iindleko kunye nokukhuselwa kwendalo
ixabiso:
I-HPS inexabiso eliphantsi kwaye ifanelekile ukusetyenziswa kwiimarike ezixabisa kakhulu. Ii-cellulose ethers zibiza kakhulu, kodwa zisebenza kakuhle kwaye zisebenza kakuhle kwiiprojekthi zokwakha ezifuna imali eninzi.
Ukhuseleko lokusingqongileyo:
Zombini zivela kwizinto zendalo kwaye zineempawu ezilungileyo zokusingqongileyo. Nangona kunjalo, ngenxa yokuba zimbalwa ii-reagents zeekhemikhali ezisetyenziswayo kwinkqubo yokuvelisa i-HPS, umthwalo wayo wokusingqongileyo unokuba sezantsi.
5. Isiseko sokukhetha
Iimfuneko zokusebenza: Ukuba uneemfuno eziphezulu zokuqina kunye neempawu zokugcina amanzi, kuya kufuneka ukhethe i-cellulose ether; kwizixhobo ezixabisa kancinci kodwa ezifuna ukuphuculwa okuthile ekusebenzeni, ungacinga ngokusebenzisa i-HPS.
Iimeko zokusetyenziswa: Ulwakhiwo olushushu kakhulu, ubushushu bodonga lwangaphandle, i-tile adhesive kunye nezinye iimeko ezifuna inkxaso yokusebenza okuphezulu zifanelekile ngakumbi kwi-cellulose ether; kwi-putty eqhelekileyo yodonga lwangaphakathi okanye kwi-basic mortar, i-HPS inokubonelela ngezisombululo ezingabizi kakhulu nezisebenzayo.
I-ether yesitatshi seHydroxypropylkwayei-cellulose ether nganye ineengenelo zayo kwaye idlala indima eyahlukileyo kwizixhobo zokwakha. Ukhetho kufuneka luqwalaselwe ngokupheleleyo ngokusekelwe kwiimfuno zokusebenza, ulawulo lweendleko, imeko-bume yokwakha kunye nezinye izinto zeprojekthi ethile ukuze kufezekiswe isiphumo esingcono sokusetyenziswa.
Ixesha leposi: Novemba-21-2024