Cov txheej txheem tsim cov tshuaj ntxuav nrog cov khoom xyaw tshiab
Kev lag luam tshuaj ntxuav khaub ncaws tseem niaj hnub hloov zuj zus kom tau raws li cov neeg siv khoom xav tau kev ntxuav kom huv, muaj kev nyab xeeb rau daim tawv nqaij, tsis ua rau ib puag ncig puas tsuaj, thiab ua tau zoo rau ntau yam dej thiab hom xim av. Nyob rau hauv cov kev xav tau no, qhov kev hloov pauv tshiab tshaj plaws feem ntau yog nyob rau hauv "cov khoom xyaw nquag" (surfactant), uas yog cov khoom tseem ceeb uas ua haujlwm los txo qhov nro ntawm dej, tshem tawm cov av, thiab ua kom cov av ruaj khov kom nws tsis lo rau daim ntaub. Tsab xov xwm no tham txog cov txheej txheem ntawm kev ua cov tshuaj ntxuav khaub ncaws nrog cov khoom xyaw nquag tshiab, pib los ntawm lub tswv yim ntawm kev xaiv surfactant, cov theem tsim khoom, cov txheej txheem tsim khoom, mus rau kev sim zoo thiab kev nyab xeeb.
1. Nkag siab txog "cov khoom xyaw tshiab" hauv cov tshuaj ntxuav tes
Hauv cov ntsiab lus ntawm cov tshuaj ntxuav tes, cov khoom xyaw nquag feem ntau yog hais txog anionic, nonionic, cationic, lossis amphoteric surfactants. "Cov khoom xyaw nquag tshiab" tuaj yeem txhais tau ob yam. Ua ntej, ib tiam tshiab ntawm surfactants uas biodegradable dua thiab muaj tshuaj lom tsawg dua. Qhov thib ob, kev sib xyaw ua ke ntawm surfactants thiab co-surfactants uas muab kev ua tau zoo dua ntawm cov koob tshuaj qis dua.
Piv txwv ntawm cov lus qhia tshiab txog cov khoom xyaw nquag muaj xws li:
– Cov tshuaj surfactants uas ua los ntawm Oleochemical (piv txwv li cov roj zaub) los ua kom biodegradability ntau ntxiv.
– Cov surfactant uas muaj concentrated heev ua rau cov tshuaj siv tsawg dua.
- Cov tshuaj surfactant tawv uas tiv taus dej rau kev ua haujlwm ruaj khov ntawm cov calcium/magnesium ntau.
- Cov tshuaj surfactant me me rau daim tawv nqaij rau cov khoom ntxhua khaub ncaws menyuam yaus lossis cov khaub ncaws hauv qab.
Txawm hais tias tsab xov xwm no tsis hais txog ib qho molecule tshwj xeeb, cov txheej txheem tsim khoom yuav cuam tshuam rau ntau yam khoom xyaw tshiab, tsuav yog cov ntsiab cai ntawm kev tsim cov tshuaj thiab cov txheej txheem sib xws tau ua tiav.
2. Txheeb xyuas cov qauv khoom: hmoov, kua, lossis tshuaj ntsiav
Cov txheej txheem tsim khoom raug cuam tshuam los ntawm cov duab khoom xaiv:
1. Cov tshuaj ntxuav hmoov
Nws muaj qhov zoo ntawm kev ruaj khov ntawm cov enzyme thiab cov nqi tsim khoom ntau. Txawm li cas los xij, cov txheej txheem nyuaj dua, suav nrog kev ua granulation, kev ziab tshuaj tsuag, lossis kev sib xyaw qhuav.
2. Cov tshuaj ntxuav tes ua kua
Siv tau yooj yim, yaj tau yooj yim, tsim nyog rau cov tshuaj "mos" thiab cov tshuaj uas muaj zog. Cov teeb meem: viscosity, clarity, phase stability, thiab perfume compatibility.
3. Tshuaj ntxuav lub tshuaj ntsiav/pod
Yuav tsum tau siv thev naus laus zis ntim khoom (zaj duab xis yaj hauv dej) nrog rau kev tswj hwm qhov viscosity thiab kev ruaj khov.
Tsab xov xwm no tsom mus rau cov txheej txheem dav dav, nrog rau kev tsom mus rau cov tshuaj ntxuav dej thiab hmoov vim tias lawv yog cov siv dav tshaj plaws.
3. Theem kev tshawb fawb txog kev tsim cov tshuaj: kos duab lub luag haujlwm ntawm txhua yam khoom
Cov tshuaj ntxuav tes tsis yog tsuas yog ib yam khoom siv los ntxuav xwb. Lwm yam khoom siv kuj tseem xav tau rau kev ua haujlwm zoo tshaj plaws:
– Builder (piv txwv li zeolite, citrate, carbonate): khi Ca/Mg ions kom cov surfactant ua haujlwm zoo tshaj plaws.
- Cov enzymes (protease, amylase, lipase): rhuav tshem cov protein, hmoov txhuv nplej siab, thiab cov rog.
- Cov polymer tiv thaiv kev rov ua dua tshiab: tiv thaiv cov av kom tsis txhob lo rov qab.
- Tshuaj ua kom ci ntsa iab: ua rau daim ntaub ci ntsa iab dua.
- Cov tshuaj dawb oxygen (piv txwv li percarbonate) thiab cov activators: pab tshem tawm cov xim oxidative.
- Cov khoom ua kom tuab rau cov kua: tswj cov viscosity.
- Cov tshuaj tiv thaiv: tseem ceeb rau cov tshuaj ntxuav uas muaj dej.
- Cov tshuaj tsw qab thiab cov xim: rau kev paub siv.
Thaum siv cov khoom xyaw tshiab, qhov tseem ceeb tshaj plaws yog xyuas kom meej tias muaj kev sib raug zoo nrog cov neeg tsim khoom, cov enzymes, cov tshuaj tsw qab, thiab kev ruaj khov ntawm lub hom phiaj pH.
4. Tsim cov yam tseem ceeb: pH, viscosity, thiab qhov kub ntawm cov txheej txheem
Cov khoom xyaw tshiab feem ntau muaj ib qho "cheeb tsam xis nyob" tshwj xeeb. Peb qhov kev ntsuas uas feem ntau txiav txim siab qhov ua tiav ntawm cov txheej txheem yog:
1. pH ntawm cov qauv
Ntau cov tshuaj ntxuav tes ua haujlwm ntawm qhov pH alkaline me ntsis mus rau qhov pH yooj yim (kwv yees li 8–11), tab sis qee cov enzymes thiab cov khoom xyaw nquag tuaj yeem rhiab heev rau pH siab heev. Cov surfactants tshiab dua yuav ruaj khov dua ntawm qhov pH nruab nrab-puag ncig me ntsis.
2. Qhov nplaum (cov tshuaj ntxuav tes xwb)
Qhov viscosity cuam tshuam rau cov khoom kom nws nchuav tau yooj yim, ruaj khov, thiab xis. Cov khoom xyaw tshiab yuav hloov cov qauv micelle, ua rau viscosity nce lossis txo qis, ua rau yuav tsum tau hloov cov ntsev, hydrotrope, lossis thickener.
3. Kev ntsuas kub ntawm cov txheej txheem
Kev sib tov kub dhau tuaj yeem ua rau cov enzymes puas tsuaj, ua rau cov tshuaj tsw qab ua pa sai dua, lossis ua rau cov tshuaj tiv thaiv uas txo qhov ruaj khov. Yog li ntawd, kev ntxiv cov enzyme thiab tshuaj tsw qab feem ntau yog ua rau qhov kub qis dua (piv txwv li, qis dua 40 ° C, nyob ntawm cov lus qhia).
5. Cov txheej txheem rau kev ua cov tshuaj ntxuav tes nrog cov khoom xyaw tshiab
Cov hauv qab no yog cov txheej txheem ntau lawm uas feem ntau siv rau hauv cov chaw tsim khoom me me mus rau cov chaw lag luam.
a) Kev npaj theem dej
- Muab dej uas tsis muaj mineralized los yog dej uas tau kho lawm ntim rau hauv lub tank sib tov.
– Qhib lub tshuab nplawm. Yog tias tsim nyog, siv qhov kub me me kom cov khoom xyaw yaj sai dua.
- Yaj cov tshuaj uas yaj tau hauv dej (piv txwv li citrate), sequestrant, lossis pH buffer.
b) Ntxiv cov surfactants tseem ceeb thiab cov co-surfactants
- Maj mam ntxiv cov khoom xyaw tshiab kom tiv thaiv kom tsis txhob muaj pob lossis ua npuas ntau dhau.
– Yog tias cov khoom xyaw nquag yog ua los ntawm cov kua nplaum/concentrate, ua ntej dilute nws nrog dej sov lossis hydrotrope kom nws yooj yim nkag mus rau hauv lub cev.
– Ntxiv cov co-surfactants (piv txwv li nonionic) kom sib npaug zog ntxuav thiab tswj kev ua npuas ncauj.
Lus Cim Tseem Ceeb: Cov khoom xyaw tshiab tuaj yeem tsim cov kab ke uas rhiab heev rau qhov kev txiav txim ntawm kev sib tov. Yog li ntawd, qhov kev txiav txim ntawm kev sim ntxiv hauv chav kuaj yog qhov tseem ceeb heev.
c) Kev teeb tsa viscosity thiab clarity
- Ntxiv hydrotrope kom tswj tau qhov meej yog tias cov surfactant muaj ntau.
- Yog tias koj xav ua kom tuab, siv cov khoom ua kom tuab uas sib xws nrog cov electrolyte thiab pH ntawm lub system.
– Qee zaum ntxiv ntsev (piv txwv li NaCl) siv los ua kom viscosity ntau ntxiv, tab sis yuav tsum tau sim vim tias tsis yog txhua yam surfactants yog "ntsev-thickening".
d) Ntxiv cov khoom ntxiv uas rhiab heev (enzymes, tshuaj tsw qab, tshuaj preservatives)
– Txo qhov kub ntawm cov khoom sib tov kom txog rau qhov chaw nyab xeeb rau cov khoom uas rhiab heev.
- Ntxiv cov tshuaj preservatives raws li cov lus qhia ntawm tus neeg muag khoom, tom qab ntawd ntxiv cov tshuaj tsw qab thiab cov xim.
- Cov enzyme raug ntxiv rau qhov kawg nrog kev sib tov maj mam kom txo qhov shear uas tuaj yeem txo nws cov haujlwm.
e) Kev tshem tawm cua thiab kev lim dej
- Tshem cov pa tawm (txo cov cua uas raug kaw) kom tiv thaiv cov khoom kom tsis txhob zoo li pos huab thiab ua npuas ntau dhau thaum lub sijhawm sau.
- Kev lim dej pab tshem tawm cov khoom me me uas tuaj yeem cuam tshuam rau qhov tsos.
f) Kev sau thiab ntim khoom
– Xyuas kom tseeb tias cov ntim khoom sib xws nrog cov mis (piv txwv li HDPE/PET).
- Sau rau ntawm qhov kub ruaj khov rau qhov ntim thiab viscosity sib xws.
6. Cov txheej txheem rau kev ua cov tshuaj ntxuav hmoov nrog cov khoom xyaw tshiab
Rau cov tshuaj zawv plaub hau, muaj ntau txoj hauv kev:
a) Kev sib xyaw qhuav
Txoj kev yooj yim tshaj plaws: txhua yam khoom xyaw hmoov raug sib tov rau hauv lub tshuab sib tov. Qhov no yog qhov tsim nyog thaum cov khoom xyaw tshiab muaj nyob rau hauv daim ntawv granular lossis hmoov ruaj khov. Cov teeb meem yog kev sib npaug thiab kev tswj cov hmoov av.
b) Kev ua kom cov hmoov av me me
Yog tias cov khoom xyaw tshiab no yog kua/paste, feem ntau nws yuav tsum tau granulated siv cov carrier (piv txwv li, zeolite, carbonate) los ua cov granules uas tsis sib sau ua ke. Kev granulation tuaj yeem ua tiav hauv lub tshuab sib tov high-shear lossis lub tshuab granulator nruas.
c) Tshuaj tsuag kom qhuav (rau cov hmoov av)
Ib qho kua/slurry uas muaj cov surfactants thiab cov builders tshwj xeeb raug ziab kom ua "hmoov av" los ntawm lub tshuab ziab khaub ncaws, tom qab ntawd cov khoom xyaw rhiab heev (enzymes, tshuaj tsw qab) raug ntxiv los ntawm kev ntxiv tom qab. Txoj kev no ua rau cov granule zoo, tab sis tus nqi peev siab.
Rau cov khoom xyaw tshiab, qhov tseem ceeb tshaj plaws yog qhov ruaj khov ntawm qhov kub thiab txias. Yog tias lawv tsis tiv taus cua sov, yuav tsum tsis txhob tsuag kom qhuav lossis cov khoom xyaw yuav tsum tau muab tso rau hauv cov hmoov tshwj xeeb tom qab noj tshuaj.
7. Kev tswj xyuas zoo: kev xeem yuav tsum tau ua
Tom qab tsim khoom, qhov zoo yog txiav txim siab los ntawm ntau qhov kev sim:
- pH: xyuas kom meej tias nws nyob hauv cov lus qhia.
- Viscosity (kua): ruaj khov thaum lub sijhawm khaws cia thiab yooj yim siv.
– Cov khoom xyaw nquag: xyuas seb muaj pes tsawg surfactant nyob hauv.
- Kev ruaj khov ntawm kev khaws cia: qhov kub thiab txias hauv chav, qhov kub siab, thiab kev sim lub voj voog kub-txias kom pom kev sib cais theem, nag lossis hloov pauv tsw.
- Kev ntsuam xyuas kev ua haujlwm ntawm kev ntxuav: ntawm cov xim pleev ib txwm muaj (roj, protein, av) thiab cov dej tawv sib txawv.
– Kev ntsuam xyuas qhov sib xws ntawm cov ntim khoom: kev hloov xim, lub raj mis tawv, xau, lossis tawg ntawm kev ntxhov siab.
– Kev kuaj kab mob me me (kua): xyuas kom meej tias cov tshuaj tiv thaiv ua haujlwm.
Cov khoom xyaw tshiab feem ntau muaj cov yam ntxwv tshwj xeeb, xws li kev ua tau zoo tab sis rhiab rau qee cov ions lossis yooj yim pos huab ntawm qhov kub qis. Yog li ntawd, kev sim ruaj khov yuav tsum ua kom nruj dua thaum ntxov ntawm kev txhim kho.
8. Kev nyab xeeb ua haujlwm thiab tej yam ib puag ncig
Kev tsim cov tshuaj ntxuav tes muaj cov tshuaj uas ua rau khaus, xeb, lossis ua rau muaj kev phom sij rau kev ua pa ntawm cov hmoov av. Cov kev coj ua yooj yim uas yuav tsum ua raws li:
– Siv cov khoom siv tiv thaiv tus kheej (PPE) (hnab looj tes, tsom iav, daim npog ntsej muag/lub tshuab ua pa rau hmoov av).
- Lub tshuab cua zoo, tshwj xeeb tshaj yog thaum ua hmoov.
- Kev tswj hwm kev nchuav thiab cov txheej txheem neutralization.
- Kev ua cov kua thiab cov khib nyiab khov raws li cov cai.
- Cov ntaub ntawv SDS (Safety Data Sheet) rau txhua yam khoom xyaw suav nrog cov khoom xyaw tshiab.
Los ntawm kev xam pom ib puag ncig, kev xaiv cov khoom xyaw tshiab yuav tsum xav txog qhov biodegradability, cov pa roj carbon ntawm cov khoom siv raw, thiab lawv cov kev cuam tshuam rau cov tsiaj txhu hauv dej.
9. Txoj kev siv: txij ntawm chav kuaj mus rau qhov ntau lawm
Cov theem kev loj hlob feem ntau:
1. Kev tsim cov tshuaj hauv chav kuaj: kev tshuaj xyuas kev sib raug zoo thiab kev ua tau zoo.
2. Qhov ntsuas sim: kev ntsuam xyuas ntawm kev sib tov, lub sijhawm sib tov, thiab kev tswj ua npuas ncauj.
3. Kev nce qib ntawm kev tsim khoom: kev hloov kho qhov kev sib xyaw, qhov kub, thiab cov ntsiab lus ntxiv cov khoom.
4. Kev lees paub qhov zoo: xyuas kom meej tias thawj pawg khoom ua raws li cov lus qhia.
Tus yuam sij rau kev vam meej nrog cov ntaub ntawv tshiab yog kev koom tes ze nrog cov neeg muab khoom siv, vim tias cov ntaub ntawv kev siv tshuab xws li cov kab viscosity, electrolyte tolerances, thiab cov ntaub ntawv ruaj khov yog qhov tseem ceeb hauv kev ua kom nrawm dua.
Xaus
Cov txheej txheem tsim cov tshuaj ntxuav tes uas muaj cov khoom xyaw tshiab xav tau txoj hauv kev ntsuas ntau dua li cov qauv ib txwm muaj. Kev ua tiav tsis yog txiav txim siab los ntawm kev xaiv cov surfactant xwb, tab sis kuj los ntawm txoj kev npaj tsim cov tshuaj, kev sib law liag ntxiv cov khoom xyaw, kev tswj pH-viscosity-kub, thiab kev ruaj khov thiab kev ua tau zoo. Nrog cov txheej txheem zoo, cov khoom xyaw tshiab tuaj yeem tsim cov tshuaj ntxuav tes uas ua haujlwm tau zoo dua, siv tau ntau dua, muaj kev nyab xeeb dua, thiab muaj peev xwm ua rau ib puag ncig zoo dua - thaum kawg ua tau raws li qhov xav tau ntawm cov neeg siv khoom niaj hnub no nrog rau kev cai lij choj thiab kev ruaj khov ntawm kev lag luam.
Yog tias koj xav tau, kuv tuaj yeem tsim ib qho version uas siv tau ntau dua hauv daim ntawv ntawm "txheej txheem ua haujlwm" (SOP) suav nrog cov piv txwv ntawm feem pua ntawm cov tshuaj ntxuav kua lossis hmoov (tsis hais txog hom khoom xyaw), tsim rau lub hom phiaj: ua npuas tsawg rau lub tshuab ntxhua khaub ncaws, ua npuas ntau rau tes, lossis cov mis mos rau daim tawv nqaij.
