Hauv cov txheej txheem tsim cov hnab looj tes latex, txhua qhov kev poob thiab kev kho yog nyob ntawm qhov sib cuam tshuam ntawm cov zog molecular. Kev ntsuas viscosity tseem ceeb hauv qhov zoo sib xws los ntawm cov zis tsis ruaj khov, ua rau muaj kev tiv thaiv zoo hauv kev tsim cov hnab looj tes latex xws li pinholes, tsis sib xws tuab thiab qis tensile zog.
Kev sib xyaw ua ke ntawm cov roj hmab ntuj (NRL)
Cov roj hmab ntuj yog cov khoom sib xyaw ua ke, uas muaj cov kua dej sib xyaw ua ke. Nws tus cwj pwm feem ntau yog non-Newtonian thiab, tshwj xeeb tshaj yog, pseudoplastic lossis shear-thinning. Qhov no txhais tau tias thaum lub shear rate nce ntxiv, qhov viscosity ntawm cov roj hmab txo qis. Qhov xwm txheej no tshwm sim vim tias cov roj hmab tawg, uas tau teeb tsa random thaum so, pib sib dhos lawv tus kheej hauv qhov kev taw qhia ntawm kev ntws hauv qab kev ntxhov siab ntxiv, ua rau cov kua txav tau yooj yim dua.
Txawm li cas los xij, qhov rheological toj roob hauv pes ntawm cov tshuaj latex tsis yog tsis muaj nws qhov tsis zoo. Txawm hais tias feem ntau pseudoplastic, qee cov qauv, xws li cov uas muaj hmoov txhuv nplej siab, tau pom tias muaj tus cwj pwm tseem ceeb thiab tawm tsam: shear-thickening. Hauv lub xeev no, viscosity nce ntxiv raws li tus nqi shear. Qhov muaj tus cwj pwm paradoxical no hauv qee cov qauv qhia txog qhov kev cov nyom tseem ceeb rau kev tswj hwm zoo. Nws qhia tias lub viscometer qis-shear yuav muab qhov nyeem viscosity yuam kev uas tsis qhia meej txog tus cwj pwm ntawm cov kua dej nyob rau hauv cov rog siab-shear ntsib hauv cov txheej txheem dipping ceev ceev. Yog li ntawd, txoj kev tswj hwm zoo tag nrho yuav tsum siv cov cuab yeej ntsuas uas tuaj yeem ntes viscosity hla ntau qhov ntau ntawm cov nqi shear, kom ntseeg tau tias muaj qhov sawv cev tiag tiag ntawm tus cwj pwm hauv cov txheej txheem.
Cov Yam Tseem Ceeb Uas Tswj Xyuas Qhov Viscosity ntawm Cov Tshuaj Latex
Qhov viscosity ntawm cov tshuaj latex tsis yog static; nws yog ib qho khoom dynamic cuam tshuam los ntawm ntau yam, txhua yam uas yuav tsum tau tswj hwm kom zoo.
Tag Nrho Cov Khoom Khoob (TSC):Qhov tseem ceeb tshaj plaws uas cuam tshuam rau qhov viscosity yog qhov concentration ntawm cov khoom khov hauv cov tshuaj. Cov khoom khov tag nrho ntau dua feem ntau ua rau muaj viscosity ntau dua, uas yog ib txoj kev npaj rau kev tsim cov hnab looj tes tuab dua. Txawm li cas los xij, qhov kev sib raug zoo no tsis yog linear. Viscosity tseem ruaj khov mus txog rau qhov tshwj xeeb "cov khoom khov tag nrho tseem ceeb (TSCc)," tom qab ntawd nws nce sai. Qhov kev sib raug zoo tsis yog linear no yog qhov tseem ceeb rau kev tswj cov txheej txheem, vim tias kev tshaj TSCc tuaj yeem ua rau muaj kev nce ntxiv thiab nyuaj rau tswj hwm hauv viscosity.
Kub:Qhov viscosity thiab qhov kub thiab txias muaj kev sib raug zoo tseem ceeb, rov qab. Thaum qhov kub ntawm cov roj hmab latex nce ntxiv, nws qhov viscosity txo qis. Kev tshawb fawb tau qhia tias qhov nce me ntsis li 15 ° C tuaj yeem txo qhov viscosity ntawm cov qauv roj hmab latex ntau dua 30%. Qhov cuam tshuam loj no txhais tau tias kev tswj qhov kub thiab txias kom ruaj khov yog qhov yuav tsum tau ua kom ruaj khov viscosity, ua rau kev tswj qhov kub thiab txias kom raug yog ib feem ntawm cov kab ntau lawm.
Cov Tshuaj Ntxiv:Cov yam ntxwv kawg ntawm cov tshuaj latex tau raug kho kom zoo los ntawm cov tshuaj ntxiv tshwj xeeb. Cov neeg sawv cev no, los ntawm cov tshuaj ua kom vulcanization mus rau cov tshuaj stabilizers, hloov pauv qhov rheology ntawm cov tshuaj. Piv txwv li, cov tshuaj ntxiv tshwj xeeb uas ua rau viscosity nce, xws li fumed silica, tau ntxiv rau kom ua tau cov khoom tuab dua yam tsis ua rau cov khoom khov ntau ntxiv. Lwm cov tshuaj ntxiv xws li cov dispersants tau siv los tswj kev ruaj khov ntawm cov tshuaj thiab tiv thaiv kev hloov pauv viscosity tsis xav tau. Qhov kev sib koom ua ke ntawm cov tshuaj lom neeg no, txhua tus muaj nws tus kheej cov nyhuv rau viscosity thiab kev ruaj khov, qhia txog qhov nyuaj ntawm theem kev sib xyaw.
Qhov viscosity hauv cov txheej txheem tsim cov hnab looj tes latex
Kev Sib Raug Zoo Ntawm Viscosity thiab Khoom Zoo
Nyob rau hauv lubCov txheej txheem tsim cov hnab looj tes latex, viscosity tsis yog ib qho yooj yim xwb; nws yog qhov qhia txog qhov zoo ntawm cov khoom. Nws yog ib qho tseem ceeb uas, thaum tswj hwm kom raug, qhia txog cov yam ntxwv ntawm kev ua tau zoo ntawm cov khoom thiab, thaum tswj hwm tsis zoo, ua rau muaj ntau qhov tsis zoo.
Zaj duab xis tuab thiab kev sib xws:Qhov txuas ncaj qha tshaj plaws ntawm viscosity thiab qhov zoo ntawm cov khoom yog nyob rau hauv kev tsim cov zaj duab xis latex. Viscosity yog qhov tseem ceeb txiav txim siab ntawm qhov tuab ntawm zaj duab xis thaum lub sijhawm dipping. Viscosity siab dua tso cai rau cov zaj duab xis tuab dua rau ntawm qhov qub.
Kev ruaj khov thiab lub zog:Qhov ruaj khov ntawm cov yas latex kawg yog khi rau qhov viscosity ntawm cov tshuaj uas nws tau tsim los. Kev tswj viscosity kom zoo thaum lub sijhawm dipping ua kom muaj cov yas ruaj khov, sib koom ua ke uas tuaj yeem tiv taus kev rhuav thiab punctures. Qhov no yog qhov yuav tsum tau ua kom ntseeg tau tias cov hnab looj tes ua haujlwm ua ib qho kev thaiv zoo tiv thaiv kev sib kis thiab kev phom sij ntawm ib puag ncig.
Kev Cuam Tshuam Kev Ua Haujlwm thiab Kev Lag Luam ntawm Kev Tswj Xyuas Viscosity Tsis Zoo
Cov txiaj ntsig ntawm kev tswj cov viscosity tsis zoo txuas ntxiv mus deb tshaj qhov kev ua tau zoo ntawm cov khoom. Lawv cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab kev ua lag luam ntawm cov chaw tsim khoom.
Cov Khoom Siv Pov Tseg thiab Tus Nqi Ntau Ntxiv:Qhov kev hloov pauv ntawm qhov viscosity ua rau cov khoom siv ntau dhau lossis tsis txaus rau ntawm cov hnab looj tes ua, ua rau muaj kev tsis lees paub ntau thiab muaj kev pov tseg ntau ntawm cov khoom siv. Txhua lub hnab looj tes uas tsis lees paub sawv cev rau kev poob cov khoom siv raw, lub zog, thiab kev ua haujlwm, ua rau cov nyiaj tau los poob qis.
Kev Tsis Ruaj Ntseg thiab Lub Sijhawm Tsis Ua Haujlwm:Qhov viscosity tsis ruaj khov tuaj yeem ua rau muaj teeb meem xws li txhaws hauv cov kav dej lossis cov twj tso kua mis thiab ua rau muaj cov khoom tsis sib npaug ntawm cov formers. Cov teeb meem no yuav tsum tau kho cov txheej txheem ntau zaus, ua rau lub sijhawm tsis ua haujlwm, txo cov khoom siv, thiab pov tseg cov neeg ua haujlwm muaj nqis.
Kev tswj cov viscosity zoo ua rau cov zaj duab xis tuab sib npaug, uas ua rau muaj kev ruaj khov thiab txo cov qhov tsis zoo xws li qhov pinholes, ua rau tus nqi tsis lees txais qis dua. Qhov no, ua rau muaj txiaj ntsig zoo dua thiab thaum kawg ua rau muaj txiaj ntsig ntau dua. Los ntawm qhov kev xav no, kev nqis peev hauv kev siv tshuab tswj viscosity tsis yog tsuas yog kev txhim kho kev siv tshuab xwb; nws yog lub tswv yim lag luam tseem ceeb nrog kev rov qab los ntawm kev nqis peev meej thiab tseem ceeb.
Kev Tswj Xyuas Viscosity Zoo Ntawm Txhua Theem
Kev Sib Xyaws thiab Kev Sib Tov
Kev tswj hwm viscosity hauvkev tsim cov hnab looj tes latexyog ib qho kev qhuab qhia holistic uas tsis pib ntawm kab ntau lawm, tab sis hauv chav sib xyaw. Ntawm no, cov roj hmab nyoos yog sib xyaw nrog cov khoom sib xyaw kom meej kom ua tiav cov khoom rheological xav tau. Cov khoom ntxiv tseem ceeb suav nrog cov neeg sawv cev vulcanization, accelerators, stabilizers, thiab, qhov tseem ceeb, viscosity modifiers. Piv txwv li, kev ntxiv cov fumed silica uas ua rau viscosity nce yog ib txoj hauv kev ncaj qha rau kev ua tiav cov zaj duab xis tuab xav tau.
Ib qho tseem ceeb ntawm theem kev sib xyaw ua ke yog siv cov tshuaj dispersants thiab cov neeg sawv cev ntub dej. Cov tshuaj dispersants yog qhov tseem ceeb rau kev tiv thaiv kev ruaj khov tsis zoo thiab cov teeb meem viscosity. Cov neeg sawv cev ntub dej, ntawm qhov tod tes, yog qhov tsim nyog los txo qhov nro ntawm cov tshuaj coagulant, xyuas kom meej tias nws npog cov khoom siv ceramic sib npaug. Txawm li cas los xij, muaj qhov tsis sib xws: feem ntau cov neeg sawv cev ntub dej, tshwj xeeb tshaj yog thaum do ntawm RPM siab, feem ntau ua rau ua npuas dej. Cov npuas dej no yog qhov ua rau muaj qhov tsis zoo, vim nws tsim cov hnab cua uas ua rau cov chaw nyias nyias thiab cov qhov hauv cov khoom kawg. Yog li ntawd, kev siv cov neeg sawv cev tiv thaiv kev ua npuas dej yog qhov tseem ceeb rau qhov teeb meem no, xyuas kom meej tias muaj kev ruaj khov, tsis muaj npuas dej uas txhawb nqa kev tsim cov zaj duab xis sib xws.
Kev Ntsuas thiab Kev Tsim: Qhov Tseeb ntawm Kev Tso Zaj Duab Xis
Qhov tseeb ntawm cov hnab looj tes zaj duab xis yog ib qho txheej txheem siab heev uas qhov viscosity ua lub luag haujlwm tseem ceeb. Theem dipping pib nrog lub da dej coagulant, tsis yog latex. Ib txheej txheej sib npaug ntawm cov coagulant yog qhov tseem ceeb rau kev sib txuas latex. Kev coagulant tsis zoo ua rau cov latex lo tsis sib xws, ib qho mob uas tuaj yeem ua rau "ntses-qhov muag" lossis thaj chaw nyias.
Qhov tuab ntawm zaj duab xis kawg yog qhov ua haujlwm ntawm qhov viscosity ntawm cov roj hmab latex, qhov ceev ntawm kev dipping, thiab lub sijhawm nyob hauv lub dab da dej. Rau cov kab ntau lawm ceev ceev, yuav tsum tswj kom muaj qhov sib npaug kom ua tiav qhov tuab ntawm lub hom phiaj yam tsis ua rau muaj cua nkag lossis lwm yam tsis zoo. Ntxiv mus, qhov kev ua tiav ntawm cov tshuaj latex yuav tsum tau tswj hwm thoob plaws hauv cov txheej txheem dipping. Kev co thiab kev ncig yog qhov tsim nyog los tiv thaiv cov teeb meem xws li kev tawv nqaij, kev ua kom zoo nkauj, thiab kev tso dej, uas yuav hloov pauv qhov viscosity ntawm cov tshuaj thiab ua rau muaj kev tsis sib xws hauv cov khoom kawg.
Tom Qab Kev Kho Mob: Qhov Cuam Tshuam Kawg ntawm Viscosity
Qhov cuam tshuam ntawm cov khoom rheological tsis xaus tom qab theem dipping. Cov kauj ruam tom qab kev kho mob xws li vulcanization thiab leaching, uas feem ntau tsom mus rau kev hloov pauv cov khoom lub cev ntawm zaj duab xis, kuj txuas nrog tus cwj pwm ntawm cov tshuaj pib. Piv txwv li, qhov kub ua ntej vulcanization tuaj yeem cuam tshuam rau cov khoom rheological ntawm cov tshuaj latex thiab, ua rau, cov khoom siv kho tshuab ntawm zaj duab xis kawg. Tag nrho cov txheej txheem yog lub voj voog rov qab txuas ntxiv uas txhua theem cov kev teeb tsa cuam tshuam rau qhov zoo ntawm cov khoom kawg, ib qho txheej txheem uas yuav tsum tau tswj hwm kom zoo txij thaum pib mus txog thaum kawg.
Txo cov teeb meem uas tshwm sim los ntawm kev tswj hwm qhov viscosity ua ntej
Feem pua loj ntawm cov teeb meem feem ntau thiab kim heev hauvkev tsim cov hnab looj tes latexyog qhov ncaj qha mus rau qhov tsis ua tiav los tswj cov viscosity ntawm ib lossis ntau qhov chaw hauv cov txheej txheem. Viscosity yog qhov hloov pauv kwv yees rau qhov zoo, thiab txoj hauv kev ua ntej rau nws txoj kev tswj hwm yog qhov tseem ceeb rau kev tiv thaiv qhov tsis zoo.
Kev Tshawb Fawb Txog Cov Kev Tsis Zoo Uas Muaj Feem Xyuam Nrog Viscosity
Cov qhov me me:Qhov no yog ib qho teeb meem loj heev uas ua rau lub hnab looj tes tiv thaiv tsis tau zoo thiab feem ntau yog vim muaj qhov nplaum thiab lwm yam teeb meem. Cov hauv paus ua rau muaj xws li cua nkag los ntawm kev sib tov tsis raug lossis kev tshem tawm tsis txaus, cov pa phem xws li hmoov av lossis cov khoom me me uas tsis yaj hauv cov tshuaj latex, thiab cov txheej coagulant tsis zoo uas tso ib daim uas cov latex tsis tuaj yeem lo rau.
Thickness tsis sib xws:Qhov no yog qhov tshwm sim ncaj qha ntawm kev tswj hwm qhov tsis zoo ntawm cov viscosity. Cov ua rau muaj ntau yam thiab suav nrog qhov tsis txaus ntawm cov roj hmab viscosity, uas ua rau cov kua dej tsis zoo thiab tsis sib npaug, nrog rau teeb meem nrog cov coagulant concentration lossis kev siv tsis sib npaug.
Lub Zog Tensile Tsawg thiab Kev Ruaj Ntseg Tsis Zoo:Feem ntau cov zaj duab xis tsis muaj zog yog vim muaj kev sib txuas tsis raug thaum lub sijhawm vulcanization, uas tuaj yeem raug cuam tshuam los ntawm qhov kub ua ntej vulcanization. Txawm li cas los xij, qhov tsis sib xws tseem ceeb ntawm cov zaj duab xis tuab uas tshwm sim los ntawm kev tswj hwm viscosity tsis zoo yog qhov ua ntej rau cov kev ua tsis tiav ntawm cov tshuab no. Cov hnab looj tes uas tsis sib xws yuav muaj cov qhov tsis muaj zog uas yooj yim rhuav thiab tho thaum siv.
Tag nrho cov kab ke ua rau muaj ntau yam teeb meem no nyuaj heev. Piv txwv li, kev siv cov tshuaj ntub dej los txhim kho kev npog coagulant tuaj yeem ua rau muaj ua npuas ncauj. Cov ua npuas ncauj no tsim cov qhov cua uas ua rau daim ntawv thov coagulant tsis sib xws lossis tsis tiav, uas ua rau cov roj hmab tsis lo rau thiab thaum kawg ua rau cov pob nyias nyias thiab cov qhov me me hauv cov hnab looj tes kawg. Cov xwm txheej no qhia tau hais tias qhov sib txawv ntawm cov txheej txheem me me tuaj yeem muaj qhov cuam tshuam loj heev, ua rau muaj kev cuam tshuam los ntawm viscosity.
Cov Kev Daws Teeb Meem Uas Siv Tau Rau Kev Txhim Kho Zoo Tsis Tu Ncua
Rau ib lub chaw tsim khoom kom txo tau cov teeb meem no, yuav tsum muaj ib txoj hauv kev los daws teeb meem tag nrho.
Kev Saib Xyuas Viscosity tiag tiag:Qhov kev daws teeb meem zoo tshaj plaws yog hloov ntawm kev sim tes, hauv chav kuaj mus rau kev soj ntsuam viscosity tas mus li, online. Qhov no muab cov lus teb rov qab tas li, tso cai rau kev hloov kho tam sim ntawd, tsis siv neeg rau cov txheej txheem, tiv thaiv cov teeb meem ua ntej lawv tshwm sim.
Optimization ntawm cov parameters ntawm dipping:Siv cov tshuab ua haujlwm tsis siv neeg los tswj lub sijhawm dipping, qhov ceev ntawm kev tsa, thiab qhov kub kom ntseeg tau tias cov yeeb yaj kiab tsim tau zoo ib yam.
Kev lim dej thiab tshem tawm cov pa phem:Siv cov ntxaij lim dej uas muaj qhov tseeb siab thiab kev siv lub tshuab nqus tsev kom tshem tawm cov pa phem thiab cov cua uas raug kaw ntawm cov tshuaj latex.
Lub Lonnmeter-ND Vibrational Viscometer
LubLonnmeter-ND online viscometeryog ib qho kev daws teeb meem uas ua rau pom qhov zoo ntawm kev siv tshuab vibrational rau kev tsim cov hnab looj tes latex. Nws lub sensor yog ib qho khoom khov uas co ntawm ib qho zaus tshwj xeeb. Lub zog poob rau qhov tsis kam ntawm cov kua dej raug ntsuas hauv hluav taws xob thiab hloov mus ua qhov nyeem viscosity. Cov cuab yeej no haum rau ob qho tib si Newtonian thiab cov kua dej tsis yog Newtonian thiab muaj peev xwm tswj tau qhov rov ua dua siab, txawm tias qhov tseeb ntawm cov kua dej tsis yog Newtonian raug cuam tshuam me ntsis.
Lonnmeter-ND yog ib qho kev daws teeb meem zoo rau kev lag luam vim ntau yam laj thawj:
Kev Ruaj Ntseg Tsis Muaj Qhov Sib Piv:Tsim los ntawm cov ntaub ntawv xws li 316 stainless hlau, nws yog tsim los kom tiv taus qhov nyuaj ntawm ib puag ncig kev lag luam, tsis muaj qhov txav mus los kom tsis txhob puas los ntawm kev hnav lossis kev ua qias tuaj.
Kev Siv Tau Ntau Yam thiab Kev Kho Kom Haum:Cov cuab yeej no muaj ntau yam kev ntsuas, txij li 1 txog 1,000,000 cP. Nws kuj tseem tuaj yeem hloov kho nrog lub cev ntev (txog li 2000mm) thiab cov kev sib txuas flange kom haum ncaj qha rau hauv cov thoob dej thiab cov reactors uas nyuaj nkag mus, xws li cov uas siv rau hauv kev sib xyaw thiab khaws cia.
Txo Tus Nqi thiab Kev Pov Tseg:Los ntawm kev muab cov ntaub ntawv tiag tiag, covLonnmeter-NDtso cai rau kev ua kom zoo dua ntawm cov txheej txheem dipping. Qhov no tiv thaiv kev tsim cov qhov tsis zoo, ua rau cov khoom tsim tau ntau dua, txo cov khoom pov tseg, thiab txo cov neeg ua haujlwm tes thiab lub sijhawm tsis ua haujlwm, ua rau muaj kev rov qab sai ntawm kev nqis peev.
Kev siv ib lub cuab yeej zoo li noLonnmeter-NDhloov cov txheej txheem los ntawm kev ua haujlwm tes ua, kev ua haujlwm teb sai mus rau qhov ua haujlwm meej, tsis siv neeg, thiab ua ntej. Cov txiaj ntsig nyiaj txiag ntawm kev hloov pauv no yog qhov tseeb thiab tseem ceeb.
| Kev Qhia Txog Kev Siv | Tus nqi (cov) |
| Qhov ntau ntawm viscosity | 1–1,000,000 cP |
| Kev raug | ±2% − ±5% |
| Rov ua dua tau | ±1% − ±2% |
| Cov Khoom Siv Txheem | 316 stainless hlau (lwm yam kev xaiv muaj) |
| Kev Kho Kom Haum | Lub cev ntev (500mm-2000mm) rau cov hlab ntsha teb |
Rau txhua tus kws tshaj lij uas xav ua kom lawv txoj haujlwm zoo duakev tsim cov hnab looj tes latexkab, txoj kev mus tom ntej yog qhov tseeb: txav mus dhau qhov kev sim tes, kev sim tshuaj tiv thaiv. Los ntawm kev siv cov viscometry online siab heev, xws liLonnmeter-ND, cov chaw tsim khoom tuaj yeem tsa lawv cov txheej txheem los ntawm kev kos duab mus rau kev tshawb fawb, kom tau txais txiaj ntsig zoo dua los ntawm kev ua haujlwm zoo, kev ua haujlwm zoo, thiab kev tiv thaiv kev puas tsuaj. Cov txiaj ntsig nyiaj txiag ntawm kev hloov pauv no tsis yog kev xav xwb; lawv yog qhov tshwm sim ncaj qha ntawm kev nce ntxiv ntawm cov qoob loo, txo cov khib nyiab, thiab txhim kho cov khoom zoo, ua rau muaj kev rov qab sai thiab muaj txiaj ntsig ntawm kev nqis peev.
Lub sijhawm tshaj tawm: Cuaj hlis-18-2025
