1 Kev Taw Qhia
Txij li thaum muaj cov xim reactive dyes, sodium alginate (SA) tau yog cov tshuaj nplaum tseem ceeb rau kev luam tawm xim reactive ntawm cov ntaub paj rwb.
Siv peb hom kev sivcov cellulose ethersCMC, HEC thiab HECMC tau npaj rau hauv Tshooj 3 ua cov tshuaj nplaum thawj, lawv tau siv rau kev luam ntawv xim reactive.
paj. Cov khoom yooj yim thiab cov khoom luam tawm ntawm peb lub pastes tau raug sim thiab piv nrog SA, thiab peb lub fibers tau raug sim.
Cov yam ntxwv luam tawm ntawm cov vitamin ethers.
2 Qhov kev sim
Cov ntaub ntawv kuaj thiab tshuaj
Cov ntaub ntawv raw thiab cov tshuaj siv rau hauv kev sim. Ntawm lawv, cov ntaub luam ntawv reactive dye tau desizing thiab refining, thiab lwm yam.
Ib qho ntawm cov paj rwb ntshiab uas tau kho ua ntej, qhov ceev 60/10cm × 50/10cm, xov paj ntaub 21tex × 21tex.
Kev npaj cov ntawv luam tawm thiab cov xim nplaum
Kev npaj cov ntawv nplaum luam ntawv
Rau plaub daim nplaum qub ntawm SA, CMC, HEC thiab HECMC, raws li qhov sib piv ntawm cov khoom sib txawv, nyob rau hauv cov xwm txheej sib xyaw
Tom qab ntawd, maj mam ntxiv cov tshuaj nplaum rau hauv dej, txuas ntxiv do rau ib lub sijhawm, kom txog thaum cov tshuaj nplaum qub sib xws thiab pob tshab, tsum tsis txhob do, thiab muab tso rau ntawm lub qhov cub
Hauv ib lub khob iav, cia sawv ib hmos.
Kev npaj cov ntawv nplaum luam ntawv
Ua ntej, yaj cov urea thiab cov ntsev tiv thaiv xim S nrog me ntsis dej, tom qab ntawd ntxiv cov xim reactive yaj hauv dej, cua sov thiab do hauv dej da dej sov.
Tom qab do ib ntus, ntxiv cov kua xim lim rau hauv cov tshuaj nplaum qub thiab do kom sib npaug. Ntxiv yaj kom txog thaum koj pib luam ntawv.
Zoo sodium bicarbonate. Cov mis ntawm cov xim muab tshuaj yog: reactive dye 3%, thawj muab tshuaj 80% (cov ntsiab lus khov 3%), sodium bicarbonate 3%,
Cov ntsev tiv thaiv kev kis kab mob S yog 2%, urea yog 5%, thiab thaum kawg dej ntxiv rau 100%.
cov txheej txheem luam ntawv
Cov txheej txheem luam ntawv xim paj rwb: kev npaj cov ntawv luam ntawv nplaum → luam ntawv hlau nplaum (ntawm chav tsev kub thiab siab, luam ntawv 3 zaug) → ziab (105 ℃, 10 feeb) → ncu (105 ± 2 ℃, 10 feeb) → ntxuav dej txias → ntxuav kub nrog dej (80 ℃) → npau xab npum (xab npum flakes 3g / L,
100℃, 10 feeb) → ntxuav dej kub (80℃) → ntxuav dej txias → ziab (60℃).
Kev ntsuam xyuas kev ua tau zoo ntawm cov tshuaj nplaum thawj
Kev sim tus nqi nplaum
Plaub daim nplaum thawj ntawm SA, CMC, HEC thiab HECMC nrog cov ntsiab lus sib txawv tau npaj, thiab Brookfield DV-Ⅱ
Lub viscosity ntawm txhua daim nplaum nrog cov khoom sib txawv tau sim los ntawm viscometer, thiab qhov hloov pauv ntawm viscosity nrog qhov concentration yog qhov ceev ntawm daim nplaum.
nkhaus.
Rheology thiab Printing Viscosity Index
Rheology: MCR301 rotational rheometer tau siv los ntsuas qhov viscosity (η) ntawm cov tshuaj nplaum qub ntawm cov nqi shear sib txawv.
Qhov nkhaus hloov pauv ntawm tus nqi shear yog qhov nkhaus rheological.
Cov ntsuas viscosity luam ntawv: Cov ntsuas viscosity luam ntawv yog qhia los ntawm PVI, PVI = η60/η6, qhov twg η60 thiab η6 yog raws li
Qhov viscosity ntawm cov tshuaj nplaum qub ntsuas los ntawm Brookfield DV-II viscometer ntawm tib lub rotor ceev ntawm 60r / min thiab 6r / min.
kev ntsuam xyuas dej kom ruaj khov
Muab 25g ntawm cov tshuaj nplaum qub rau hauv lub khob iav 80mL, thiab maj mam ntxiv 25mL dej distilled thaum do kom sib tov.
Nws sib xyaw kom sib npaug. Siv daim ntawv lim dej uas muaj qhov ntev × dav ntawm 10cm × 1cm, thiab cim ib kawg ntawm daim ntawv lim dej nrog kab ntsuas, thiab tom qab ntawd ntxig qhov kawg cim rau hauv daim nplaum, kom kab ntsuas sib phim nrog qhov chaw nplaum, thiab lub sijhawm pib tom qab ntxig daim ntawv lim dej, thiab nws raug kaw rau ntawm daim ntawv lim dej tom qab 30 feeb.
Qhov siab uas cov dej noo nce siab.
4 Kev Ntsuas Kev Sib Xws ntawm Cov Tshuaj
Rau kev luam ntawv xim reactive, sim qhov sib xws ntawm cov tshuaj nplaum qub thiab lwm yam xim ntxiv rau hauv cov tshuaj nplaum luam ntawv,
Ntawd yog, qhov sib xws ntawm cov tshuaj nplaum qub thiab peb yam khoom (urea, sodium bicarbonate thiab ntsev tiv thaiv kev laus S), cov kauj ruam xeem tshwj xeeb yog raws li nram no:
(1) Rau qhov kev sim ntawm qhov viscosity siv ntawm cov tshuaj nplaum qub, ntxiv 25mL ntawm cov dej distilled rau 50g ntawm cov tshuaj nplaum luam tawm qub, do kom sib npaug, thiab tom qab ntawd ntsuas qhov viscosity.
Tus nqi viscosity tau txais yog siv ua tus qauv viscosity.
(2) Txhawm rau kuaj qhov viscosity ntawm cov tshuaj nplaum qub tom qab ntxiv ntau yam khoom xyaw (urea, sodium bicarbonate thiab ntsev tiv thaiv kev pleev xim S), muab cov khoom npaj 15% tso rau hauv.
Cov kua Urea (feem ntau), 3% ntsev tiv thaiv kev pleev xim S kua (feem ntau) thiab 6% sodium bicarbonate kua (feem ntau)
25mL tau ntxiv rau 50g ntawm cov tshuaj nplaum qub, do kom sib npaug thiab muab tso rau ib lub sijhawm, thiab tom qab ntawd ntsuas qhov viscosity ntawm cov tshuaj nplaum qub. Thaum kawg, qhov viscosity yuav raug ntsuas
Cov nqi viscosity tau muab piv rau qhov sib piv viscosity, thiab feem pua ntawm qhov hloov pauv viscosity ntawm cov tshuaj txhuam thawj ua ntej thiab tom qab ntxiv txhua cov xim thiab cov khoom siv tshuaj tau suav.
Kev Ntsuas Kev Ruaj Ntseg ntawm Kev Khaws Cia
Khaws cov tshuaj nplaum qub rau ntawm chav tsev kub (25 ° C) hauv qab qhov siab ib txwm rau rau hnub, ntsuas qhov viscosity ntawm cov tshuaj nplaum qub txhua hnub nyob rau hauv tib qho xwm txheej, thiab xam qhov viscosity ntawm cov tshuaj nplaum qub tom qab 6 hnub piv rau qhov viscosity ntsuas rau thawj hnub los ntawm cov mis 4-(1). Qhov degree dispersion ntawm txhua cov tshuaj nplaum qub raug soj ntsuam los ntawm dispersion degree ua tus ntsuas.
Kev ruaj khov ntawm kev khaws cia, qhov me me ntawm kev sib kis, qhov zoo dua ntawm kev khaws cia ntawm cov tshuaj nplaum qub.
Kev sim tus nqi swb
Ua ntej, ziab cov ntaub paj rwb uas yuav luam tawm kom txog qhov hnyav tas li, hnyav thiab sau nws ua mA; tom qab ntawd ziab cov ntaub paj rwb tom qab luam tawm kom txog qhov hnyav tas li, hnyav thiab sau nws
yog mB; thaum kawg, cov ntaub paj rwb luam tawm tom qab siv lub tshuab ua kom sov, xab npum thiab ntxuav tau ziab kom qhov hnyav tas li, hnyav thiab sau ua mC
Kev sim tes
Ua ntej, cov ntaub paj rwb ua ntej thiab tom qab luam ntawv raug kuaj raws li qhov xav tau, thiab tom qab ntawd siv lub cuab yeej ntsuas hom ntaub phabrometer los ntsuas qhov yooj yim ntawm cov ntaub.
Qhov kev xav ntawm tes ua ntej thiab tom qab luam ntawv tau raug soj ntsuam tag nrho los ntawm kev sib piv peb yam ntxwv ntawm tes xws li du, tawv thiab mos.
Kev sim xim kom ruaj khov ntawm cov ntaub luam tawm
(1) Xim kom ruaj khov rau kev sib txhuam
Kuaj raws li GB / T 3920-2008 "Xim kom ruaj khov rau kev sib txhuam rau kev sim xim kom ruaj khov ntawm cov ntaub".
(2) Kev ntsuam xyuas xim kom ruaj khov thaum ntxuav
Kev xeem raws li GB/T 3921.3-2008 "Xim kom ruaj khov rau kev ntxuav ntawm cov ntaub xim."
Cov ntsiab lus ntawm cov khoom qub uas muab tshuaj txhuam /%
CMC
HEC
HEMCC
SA
Cov kab sib txawv ntawm viscosity ntawm plaub hom thawj pastes nrog cov ntsiab lus khov
yog sodium alginate (SA), carboxymethyl cellulose (CMC), hydroxyethyl cellulose (HEC) thiab
Cov kab viscosity ntawm plaub hom thawj cov pastes ntawm hydroxyethyl carboxymethyl cellulose (HECMC) ua haujlwm ntawm cov ntsiab lus khov.
, qhov viscosity ntawm plaub daim nplaum qub nce nrog rau qhov nce ntawm cov khoom khov, tab sis cov khoom ua daim nplaum ntawm plaub daim nplaum qub tsis zoo ib yam, ntawm cov uas SA
Cov khoom siv nplaum ntawm CMC thiab HECMC yog qhov zoo tshaj plaws, thiab cov khoom siv nplaum ntawm HEC yog qhov phem tshaj plaws.
Cov kab nkhaus rheological kev ua tau zoo ntawm plaub lub pastes qub tau ntsuas los ntawm MCR301 rotational rheometer.
- Kab nkhaus viscosity ua haujlwm ntawm qhov nrawm shear. Cov viscosities ntawm plaub daim nplaum qub txhua tus nce nrog rau qhov nrawm shear.
nce thiab txo qis, SA, CMC, HEC thiab HECMC yog cov kua pseudoplastic. Rooj 4.3 PVI tus nqi ntawm ntau yam khoom siv raw
Hom tshuaj txhuam nyoos SA CMC HEC HECMC
Tus nqi PVI 0.813 0.526 0.621 0.726
Nws tuaj yeem pom los ntawm Rooj 4.3 tias qhov ntsuas viscosity ntawm SA thiab HECMC loj dua thiab qhov viscosity ntawm cov qauv me dua, uas yog, qhov luam ntawv thawj daim nplaum.
Nyob rau hauv qhov kev ua ntawm lub zog qis shear, qhov hloov pauv viscosity me me, thiab nws nyuaj rau ua kom tau raws li qhov yuav tsum tau ua ntawm kev tshuaj ntsuam rotary thiab kev luam ntawv tiaj tus; thaum HEC thiab CMC
Lub viscosity index ntawm CMC tsuas yog 0.526 xwb, thiab nws cov qauv viscosity loj heev, uas yog, cov tshuaj nplaum luam ntawv thawj muaj lub zog qis dua.
Nyob rau hauv qhov kev nqis tes ua, qhov hloov pauv viscosity yog qhov nruab nrab, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev tshuaj ntsuam rotary thiab kev luam ntawv tiaj tus, thiab tuaj yeem tsim nyog rau kev luam ntawv rotary nrog tus lej mesh siab dua.
Yooj yim kom tau cov qauv thiab cov kab meej. Viscosity/mPa·s
Cov kab nkhaus rheological ntawm plaub 1% cov khoom khov nyoos pastes
Hom tshuaj txhuam nyoos SA CMC HEC HECMC
h/cm2 0.33 0.36 0.41 0.39
Cov txiaj ntsig ntawm kev sim tuav dej ntawm 1% SA, 1% CMC, 1% HEC thiab 1% HECMC cov tshuaj nplaum qub.
Pom tau tias lub peev xwm tuav dej ntawm SA yog qhov zoo tshaj plaws, ua raws li CMC, thiab qhov phem dua los ntawm HECMC thiab HEC.
Kev Sib Piv Txog Kev Sib Haum Xeeb ntawm Cov Tshuaj
Kev hloov pauv ntawm qhov viscosity ntawm cov tshuaj nplaum qub ntawm SA, CMC, HEC thiab HECMC
Hom tshuaj txhuam nyoos SA CMC HEC HECMC
Viscosity/mPa·s
Viscosity tom qab ntxiv urea / mPa s
Viscosity tom qab ntxiv cov ntsev tiv thaiv kev pleev xim S/mPa s
Viscosity tom qab ntxiv sodium bicarbonate / mPa s
Plaub qhov viscosities nplaum tseem ceeb ntawm SA, CMC, HEC thiab HECMC sib txawv nrog peb cov khoom ntxiv tseem ceeb: urea, ntsev tiv thaiv kev pleev xim S thiab
Cov kev hloov pauv ntawm kev ntxiv sodium bicarbonate tau qhia nyob rau hauv lub rooj. , qhov ntxiv ntawm peb qhov tseem ceeb additives, rau cov thawj paste
Tus nqi ntawm kev hloov pauv ntawm viscosity sib txawv heev. Ntawm lawv, qhov ntxiv ntawm urea tuaj yeem ua rau kom viscosity ntawm cov tshuaj nplaum qub nce ntxiv li 5%, uas tej zaum yuav yog
Nws yog tshwm sim los ntawm cov nyhuv hygroscopic thiab puffing ntawm urea; thiab cov ntsev tiv thaiv kev pleev xim S kuj tseem yuav ua rau me ntsis viscosity ntawm cov tshuaj nplaum qub, tab sis nws muaj me ntsis nyhuv;
Qhov ntxiv ntawm sodium bicarbonate ua rau kom cov viscosity ntawm cov tshuaj nplaum qub tsawg dua, ntawm cov uas CMC thiab HEC txo qis, thiab cov viscosity ntawm HECMC/mPa·s
66
Qhov thib ob, qhov sib xws ntawm SA zoo dua.
SA CMC HEC HECMC
-15
-10
-5
05
Urea
Cov ntsev tiv thaiv kev pleev xim S
sodium bicarbonate
Kev sib raug zoo ntawm SA, CMC, HEC thiab HECMC cov khoom lag luam nrog peb cov tshuaj lom neeg
Kev sib piv ntawm kev ruaj khov ntawm kev cia khoom
Kev tawg ntawm cov viscosity txhua hnub ntawm ntau yam khoom siv raw
Hom tshuaj txhuam nyoos SA CMC HEC HECMC
Kev tawg tawm/% 8.68 8.15 8. 98 8.83
yog qhov degree dispersion ntawm SA, CMC, HEC thiab HECMC nyob rau hauv txhua hnub viscosity ntawm plaub thawj pastes, qhov dispersion
Qhov me dua tus nqi ntawm degree, qhov zoo dua qhov kev ruaj khov ntawm cov tshuaj nplaum qub. Nws tuaj yeem pom los ntawm lub rooj tias qhov kev ruaj khov ntawm CMC raw paste zoo heev.
Qhov ruaj khov ntawm HEC thiab HECMC raw paste tsis zoo, tab sis qhov sib txawv tsis tseem ceeb.
Lub sijhawm tshaj tawm: Cuaj hlis-29-2022