CMC siv hauv Ntawv Kev Lag Luam

Carboxymethylcellulose (CMC) yog dav siv nyob rau hauv daim ntawv kev lag luam rau nws ntau yam khoom raws li ib tug dej-soluble polymer. Nws yog muab los ntawm cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag cell phab ntsa, los ntawm ib tug tshuaj hloov txheej txheem uas qhia txog carboxymethyl pawg. CMC yog siv nyob rau hauv ntau theem ntawm cov ntawv tsim los txhim kho cov khoom ntawm cov ntawv thiab txhim khu kev ua haujlwm ntawm kev tsim khoom. Nov yog qee qhov kev siv tseem ceeb ntawm CMC hauv kev lag luam ntawv:

1. Surface Size:
   • CMC yog siv los ua tus neeg saib xyuas qhov chaw hauv kev tsim cov ntawv. Nws txhim kho cov khoom saum npoo ntawm daim ntawv, xws li dej tsis kam, luam ntawv, thiab txais tus cwj mem. CMC tsim ib zaj duab xis nyias ntawm daim ntawv, ua rau kom zoo dua luam ntawv thiab txo tus number case nkag.
2. Internal Size:
   • Ntxiv nrog rau qhov loj me me, CMC tau ua haujlwm ua tus neeg sawv cev sab hauv. Nws txhim khu kev tiv thaiv ntawm daim ntawv rau kev nkag mus los ntawm cov kua, suav nrog dej thiab luam ntawv inks. Qhov no txhawb nqa lub zog thiab durability ntawm daim ntawv.
3. Retention thiab Drainage Aid:
   • CMC ua raws li kev tuav pov hwm thiab kev pab dej thaum lub sijhawm ua ntawv. Nws txhim kho qhov tuav ntawm fibers thiab lwm yam khoom ntxiv hauv daim ntawv, ua rau muaj kev tsim zoo dua thiab muaj zog ntawm daim ntawv. CMC kuj tseem pab ua kom cov dej ntws tawm, txo lub sijhawm nws yuav siv dej kom tshem tawm ntawm daim ntawv.
4. Wet-End Additive:
   • CMC tau ntxiv rau qhov ntub dej kawg ntawm cov txheej txheem papermaking ua ib qho kev pab khaws cia thiab flocculant. Nws pab tswj kev khiav thiab kev faib cov fibers hauv daim ntawv slurry, txhim kho kev ua haujlwm ntawm daim ntawv tshuab.
5. Tswj ntawm Pulp Viscosity:
   • CMC yog siv los tswj cov viscosity ntawm cov pulp hauv cov txheej txheem papermaking. Qhov no ua kom muaj kev sib faib ntawm cov fibers thiab cov khoom siv ntxiv, txhawb kev tsim cov ntawv zoo dua thiab txo cov kev pheej hmoo ntawm cov ntawv tsis xws luag.
6. Txhim kho lub zog:
   • Qhov sib ntxiv ntawm CMC pab txhawb cov khoom muaj zog ntawm daim ntawv, nrog rau lub zog tensile thiab tawg lub zog. Qhov no yog qhov tseem ceeb tshwj xeeb rau kev tsim cov ntaub ntawv nrog kev txhim kho durability thiab kev ua tau zoo.
7. Txheej Additive:
   • CMC yog siv los ua ib qho ntxiv hauv cov txheej txheem txheej rau cov ntawv coated. Nws pab txhawb rau rheology thiab stability ntawm txheej, txhim kho smoothness thiab luam ntawv zoo ntawm cov ntawv coated.
8. Tswj ntawm Pulp pH:
   • CMC tuaj yeem ua haujlwm los tswj cov pH ntawm cov ntaub so ntswg. Kev tswj hwm qib pH uas tsim nyog yog qhov tseem ceeb rau kev ua kom zoo dua ntawm ntau yam tshuaj papermaking.
9. Formation thiab Sheet Uniformity:
   • CMC pab txhim kho kev tsim thiab sib xws ntawm cov nplooj ntawv. Nws pab tswj kev faib cov fibers thiab lwm yam khoom, ua rau cov ntaub ntawv nrog cov khoom zoo ib yam.
10. Retention Aid rau Fillers thiab Additives:
    • CMC yog ib qho kev pab khaws cia rau cov fillers thiab lwm yam additives nyob rau hauv daim ntawv formulations. Nws txhim kho qhov khaws cia ntawm cov ntaub ntawv no hauv daim ntawv, ua rau kom zoo dua printability thiab tag nrho cov ntawv zoo.
11. Environmental Benefits:
    • CMC yog ib qho biodegradable thiab ib puag ncig tus phooj ywg additive, ua raws li kev lag luam tsom mus rau kev coj noj coj ua.

Hauv cov ntsiab lus, carboxymethylcellulose (CMC) plays lub luag haujlwm tseem ceeb hauv kev lag luam ntawv, pab txhawb kev txhim kho cov khoom ntawm cov ntawv, kev ua haujlwm ntawm kev tsim khoom, thiab tag nrho cov khoom zoo ntawm cov ntawv. Nws cov ntawv thov ntau yam hauv qhov loj me, qhov loj me, kev tuav pov hwm, thiab lwm yam ua rau nws muaj txiaj ntsig zoo hauv ntau theem ntawm cov ntawv tsim.