Cov dej polymer yog dab tsi?

Lub polymer yog dab tsi?
Polymersyog cov sib xyaw ua los ntawm cov lwg me me koom ua ke hauv cov saw hlau. Cov saw hlau no feem ntau yog ntev thiab tuaj yeem rov ua kom loj dua los nce qhov loj ntawm cov qauv molecular. Tus neeg molecules nyob rau hauv txoj saw hlau yog hu ua monomers, thiab cov saw hlau teeb tau manually manipulated lossis hloov kho kom tiav cov khoom thiab cov khoom.
Kev tsim cov pob txha muaj ntau lub hom phiaj yog ib daim ntawv thov hloov kho polymer molecular. Hauv tsab xov xwm no, txawm li cas los xij, peb yuav hais txog cov polymers hauv kev lag luam,Kho cov dej polymer tshwj xeeb.

Yuav ua li cas tuaj yeem siv rau hauv kev kho dej?
Polymers muaj txiaj ntsig zoo heev hauv kev kho kom zoo. Hauv qhov kev txiav txim siab yooj yim, lub luag haujlwm ntawm cov pob zeb molecular no yog cais cov khoom tivthaiv cov khoom siv ntawm nws cov kua tivthaiv. Thaum ob qho sib xyaw ntawm cov dej khib nyiab tau sib cais, nws yooj yim dua los ua kom tiav cov txheej txheem thiab kho cov dej huv si kom nws tuaj yeem muab pov tseg kom muaj kev nyab xeeb lossis rau lwm cov ntawv thov.
Nyob rau hauv qhov kev txiav txim siab no, lub polymer yog cov flocculant - ib yam khoom uas reacts nrog cov khib nyiab tshem tawm hauv dej los ua pob txha caj dab hu ua froc. Qhov no muaj txiaj ntsig zoo hauv kev kho kom muaj dej num ntau zaus, yog li cov polymers feem ntau siv ib leeg los pab flocculation, uas tuaj yeem tshem tawm cov khib nyiab yooj yim. Txawm li cas los xij, thiaj li yuav tau txais cov txiaj ntsig zoo tshaj plaws los ntawm cov txheej txheem no, polymer flocculusts feem ntau siv nrog cov coagulants.
Coagulants nqa cov txheej txheem flocculation rau qib tom ntej, sib sau ua ke Flocs ua ke los ua ib txheej tuab uas tuaj yeem tshem tawm lossis muab kho ntxiv. Polymer floocculation tuaj yeem tshwm sim ua ntej kev sib ntxiv ntawm cov coagulants lossis tuaj yeem siv los ua kom nrawm ntawm cov txheej txheem hluav taws xob. Vim tias electrocoagulation muaj ob qho zoo thiab qhov tsis zoo, kev siv cov txheej txheem polymer kom cov txheej txheem yog ib qho kev qhia zoo rau cov thawj tswj hwm tsev.

Hom dej sib txawv ntawm cov dej zog polymers
Polymer kev kho mob tuaj yeem ua haujlwm nyob rau hauv ntau txoj kev nyob ntawm seb cov monomer siv cov saw polymer. Polymers feem ntau poob rau ob hom dav. Lawv yog cov cationic thiab anionic, hais txog cov kev sib tw ntawm cov saw molecular.

Anionic polymers hauv kev kho dej
Anionic polymers yog tsis zoo them. Qhov no ua rau lawv haum rau flocculating cov khib nyiab hauv soob, xws li av nplaum, silt lossis lwm hom av, los ntawm cov kev daws teeb meem. Wastewater los ntawm kev txiav cov haujlwm lossis kev lag luam hnyav yuav nplua nuj nyob rau hauv cov ntsiab lus ruaj khov, yog li anionic polymers yuav pab tau tshwj xeeb rau hauv cov ntawv thov.

Cationic polymers hauv kev kho dej
Hais txog nws cov txheeb ze them, lub cationic polymer yog qhov rov qab ntawm ib qho kev sib txawv ntawm cov neeg tsis sib xws vim tias nws muaj tus nqi zoo. Tus nqi them zoo ntawm cationic polymers ua rau lawv zoo tshaj rau kev tshem cov organic cov khib nyiab los ntawm cov kev daws teeb meem kom huv lossis sib xyaw. Vim tias cov kav dej phwj hauv hiav txwv zoo li muaj cov khoom siv hluav taws xob ntau ntxiv, yog tias cov chaw ua noj ua haus thiab chaw ua noj ua haus thiab kev ua zaub mov noj thiab cov polymers.

Cov txiv ntoo uas muaj cationic suav nrog:
Polydimethyl diallyl ammonium chloride, polyamine, polyacrylic acid / sodium polyacrylate, thiab lwm yam. Cationic polyacrylamide, thiab lwm yam.