Kungani ukhetha i-Polydadmac?
Njengoba iphepha laseShayina sekuyisikhathi eside libuswa yi-graminaceous plant fiber raw materials, kanye nemicu yezitshalo ze-herbaceous mifushane, enokuqukethwe okuphezulu kwama-heterocyte, i-pulp yotshani inokugcinwa okuphansi kanye nokuhlunga kwamanzi okungekuhle enqubweni yokwenza iphepha.
I-Polydadmac ingathuthukisa inkinga yokugcinwa okuphansi kanye nokuhlunga kwamanzi okungekuhle ohlelweni lwe-papermaking, ukuthuthukisa ukukhiqiza nokusetshenziswa kwezinto eziluhlaza, ukunciphisa izindleko zamathani wephepha nokungcoliswa kwemvelo. I-Polydadmac ingabuye ithuthukise ukusebenza kokuhlunga kwamanzi kwe-pulp kanye nokwakheka kwephepha lephepha.
Lesi sihloko siphenya izici ze-adsorption, ukugcinwa, nezici zokuhlunga ze-Polydadmac enesisindo samangqamuzana ahlukene njengezithasiselo ku-pulp yomhlanga owenziwe nge-bleached, bese ithola isiphetho esilandelayo.
1.I-Adsorption ye-Polydadmac ku-Reed Pulp
Isisindo sengqamuzana esincane se-Polydadmac, sikhulisa ukwehla kwezinga le-adsorption ngenani elikhulayo lezinsiza, okungenzeka kungenxa yokuthi isisindo samangqamuzana e-Polydadmac sincane, amandla amakhulu okubamba ama-anion. I-polydadmac encane iyadingeka ngenani elifanayo le-anion kusistimu egcwele.
2.Umphumela wokuhlunga we-Polydadmac
Ngomthamo okhulayo we-polydadmac, idigri yokuhlunga ivame ukwehla bese ikhuphuka, futhi idigri yokuhlunga iseduze noma yedlule ngisho naleyo yokungenalutho lapho inani elingeziwe lifinyelela futhi lidlule u-0.8%. Lokhu kusho ukuthi i-Polydadmac eningi kakhulu ayikwazi ukusiza ukuhlunga, kodwa yenza kube kubi kakhulu ukuhlungwa kwamanzi kwe-pulp. Lokho kusho ukuthi i-molecular weight eyahlukene i-Polydadmac ibe nomphumela ongcono wokuhlunga ngaphambi kokuthi igcwalise ishaje elibi endaweni ye-pulp fiber.
3.Umphumela wokugcina we-Polydadmac
Njengoba umthamo we-Polydadmac ukhula, ukugcwala kwamanzi amhlophe ku-pulp yomhlanga kancane kancane kuncipha kuqala, bese kukhuphuka futhi. Lolu phenyo lubonisa ukuthi ukwengeza i-polydadmac ku-pulp yomhlanga kungathuthukisa kakhulu ukugcinwa kwemicu emifushane nezingxenye ezinhle kanye nokusetshenziswa kwempahla eluhlaza, futhi kunciphise imithwalo yokukhipha amanzi. Kutholwe ukuthi umthamo ophelele we-polydadmac awuthintwa isisindo sabo samangqamuzana; Isisindo se-molecular ye-polydadmac siba sincane, kuba ngcono umphumela wokugcina. Kodwa umehluko awubonakali, futhi i-polydadmac yesisindo se-molecular ehlukile inemiphumela engcono yokugcina phezu kwemicu ye-pulp egcwele ngaphambi kokuba kuvele amashaji angalungile.
Isikhathi sokuthumela: Feb-20-2025