Qhov tsim nyog ntawm kev ntxiv cellulose rau hauv mortar thiab gypsum cov khoom lag luam

Cov khoom siv mortar thiab gypsum yog cov khoom tseem ceeb hauv kev lag luam kev tsim kho, ua haujlwm ua cov neeg sawv cev rau ntau yam khoom siv hauv kev tsim kho. Cov khoom no tau dhau los ntawm kev tsim kho tshiab thiab kev txhim kho tas li kom tau raws li qhov xav tau ntawm kev tsim kho niaj hnub no. Ib qho tseem ceeb ntxiv rau hauv cov ntaub ntawv no yog cellulose, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho lawv cov kev ua tau zoo thiab cov khoom.

Kev Nkag Siab Txog Cellulose:

Cellulose yog ib qho polysaccharide uas muaj nyob rau hauv cov phab ntsa ntawm cov nroj tsuag. Nws yog cov polymer organic uas muaj ntau tshaj plaws hauv ntiaj teb thiab ua haujlwm ua cov khoom tseem ceeb hauv cov ntaub so ntswg ntawm cov nroj tsuag. Hauv kev tshuaj lom neeg, cov molecule cellulose muaj cov saw hlau ntawm cov glucose units txuas ua ke los ntawm β (1 → 4) glycosidic bonds. Cov qauv molecular tshwj xeeb no muab lub zog tshwj xeeb, kev ruaj khov, thiab kev ua kom zoo rau cellulose.

Hauv kev lag luam kev tsim kho, cellulose pom ntau daim ntawv thov ua ib qho khoom ntxiv rau ntau yam khoom siv hauv kev tsim kho, suav nrog cov khoom siv mortar thiab gypsum. Nws cov kev sib xyaw ua ke ua haujlwm ntau lub hom phiaj, daws ntau yam teeb meem uas ntsib thaum lub sijhawm tsim khoom, kev siv, thiab kev ua haujlwm ntawm cov ntaub ntawv no.

Cov Haujlwm ntawm Cellulose hauv Mortar thiab Gypsum-Based Cov Khoom:

Kev Khaws Dej:
Ib qho ntawm cov haujlwm tseem ceeb ntawm cellulose hauv cov khoom siv mortar thiab gypsum yog nws lub peev xwm khaws dej. Cov fiber cellulose muaj peev xwm nqus thiab tuav dej hauv lawv cov qauv. Thaum ntxiv rau cov ntaub ntawv no, cellulose ua haujlwm ua tus neeg sawv cev khaws dej, xyuas kom meej tias cov khoom cementitious lossis gypsum muaj dej txaus. Cov txheej txheem hydration ntev no ua rau cov khoom sib tov ua haujlwm tau zoo dua, ua rau muaj kev siv zoo dua thiab txhim kho kev lo rau cov substrates.

Kev Ua Haujlwm Zoo Dua thiab Kev Sib Koom Tes:
Qhov muaj cov cellulose fibers nyob rau hauv cov khoom siv mortar thiab gypsum ua rau lawv ua haujlwm tau zoo thiab sib koom ua ke. Cellulose fibers ua haujlwm ua tus neeg sawv cev txhawb nqa, ua kom zoo dispersed thoob plaws hauv qhov sib tov thiab tsim ib lub network peb-seem. Lub network no txhawb nqa lub matrix, tiv thaiv kev sib cais thiab txhim kho qhov sib xws thiab kev sib xws ntawm cov khoom. Yog li ntawd, qhov sib tov ua rau yooj yim dua rau kev tuav, nthuav dav, thiab duab, ua rau muaj kev ua haujlwm tau zoo dua thaum lub sijhawm ua haujlwm tsim kho.

Kev Tiv Thaiv Kev Tawg Thiab Kev Tswj Kev Ntsws:
Lwm lub luag haujlwm tseem ceeb ntawm cellulose hauv cov ntaub ntawv no yog nws txoj kev pab txhawb rau kev tiv thaiv kev tawg thiab kev tswj kev ntsws. Thaum lub sijhawm ziab thiab kho, cov khoom siv mortar thiab gypsum-based yuav raug ntsws thiab tawg vim yog kev poob dej noo thiab kev ntxhov siab sab hauv. Cov fiber cellulose pab txo cov teeb meem no los ntawm kev muab kev txhawb nqa sab hauv thiab txo qhov tsim ntawm cov kab nrib pleb me me. Los ntawm kev txhim kho lub zog tensile thiab ductility ntawm cov khoom, cellulose txhim kho nws txoj kev tiv thaiv rau kev ntsws-induced cracking, yog li txhawb nqa kev ruaj khov mus sij hawm ntev thiab kev ua haujlwm ntawm cov qauv.

Cov Khoom Siv Kho Kom Zoo Dua:
Kev txhawb nqa cellulose muab cov khoom siv kho tshuab zoo dua rau cov khoom siv mortar thiab gypsum. Kev ntxiv cov fibers cellulose ua rau cov khoom siv lub zog flexural thiab tensile, kev tiv thaiv kev cuam tshuam, thiab kev ruaj khov. Qhov kev txhim kho no hauv kev ua haujlwm kho tshuab yog qhov tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov khoom siv raug rau cov khoom siv thauj khoom, cov zog sab nraud, lossis cov yam ntxwv ib puag ncig. Los ntawm kev txhawb nqa lub matrix thiab txo qhov kev pheej hmoo ntawm kev ua tsis tiav, cellulose txhim kho kev ua tau zoo tag nrho thiab lub neej ntev ntawm cov qauv tiav.

Kev Sib Haum Xeeb Nrog Kev Ua Haujlwm Sustainable:
Cellulose yog los ntawm cov khoom siv rov ua dua tshiab xws li ntoo pulp, paj rwb, lossis ntawv rov ua dua tshiab, ua rau nws ruaj khov thiab zoo rau ib puag ncig. Nws siv rau hauv cov khoom siv mortar thiab gypsum raws li kev lag luam txoj kev loj hlob ntawm kev coj ua kev tsim kho kom ruaj khov thiab kev pib ua vaj tse ntsuab. Los ntawm kev siv cov khoom ntxiv cellulose, cov chaw tsim khoom tuaj yeem txo lawv txoj kev vam khom rau cov peev txheej tsis rov ua dua tshiab thiab txo qhov cuam tshuam rau ib puag ncig ntawm lawv cov khoom. Qhov kev sib raug zoo nrog cov kev coj ua kom ruaj khov no ntxiv qhia txog qhov tsim nyog ntawm cellulose hauv cov ntaub ntawv tsim kho niaj hnub.

Kev ntxiv cov cellulose rau hauv cov khoom siv mortar thiab gypsum tsis yog ib qho kev xaiv xwb tab sis yog qhov tsim nyog los ntawm qhov xav tau kev ua haujlwm zoo dua, kev ruaj khov, thiab kev ruaj khov. Cellulose ua haujlwm ntau yam haujlwm, suav nrog kev khaws dej, kev ua haujlwm zoo dua, kev tiv thaiv kev tawg, thiab kev txhawb nqa tshuab. Nws cov khoom tshwj xeeb thiab kev sib raug zoo nrog cov kev coj ua ruaj khov ua rau nws yog ib qho khoom siv tseem ceeb hauv cov ntaub ntawv tsim kho niaj hnub. Raws li kev lag luam tsim kho txuas ntxiv mus, qhov tseem ceeb ntawm cellulose hauv cov khoom siv mortar thiab gypsum yuav tsuas yog loj hlob, tsim lub neej yav tom ntej ntawm kev tsim kho ruaj khov thiab muaj zog.