Indlela i-Polydadmac(poly diallyldimethylammonium chloride)

Kungani ukhetha i-Polydadmac?

Njengoba iphepha laseShayina sekuyisikhathi eside libuswa yi-graminaceous plant fiber raw materials, futhi imicu yezitshalo ze-herbaceous mifishane, 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 enqubweni yokwenza iphepha, ithuthukise ukukhiqiza kanye nokusetshenziswa kwempahla eluhlaza, ukunciphisa izindleko zamathani wephepha nokungcoliswa kwemvelo.I-Polydadmac ingabuye ithuthukise ukusebenza kokuhlunga kwamanzi kwe-pulp kanye nokwakheka kwephepha lephepha.

Lesi sihloko siphenya izici zokukhangisa, 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 esincane samangqamuzana e-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 ishaji 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 awukho obala, futhi i-polydadmac yesisindo se-molecular ehlukile inemiphumela engcono yokugcina phezu kwemicu ye-pulp egcwele ngaphambi kokuba kukhokhiswe okubi.

Isiphetho:

I-1.I-Polydadmac enesisindo samangqamuzana ahlukene inokuhlunga okuhle kanye nemiphumela yokugcinwa ku-pulp yomhlanga;
2.Imiphumela yayo engcono yokuhlunga kanye nokugcinwa endaweni etholwe lapho inani le-polydadmac elisetshenzisiwe lingaphansi kokukhokhiswa okungekuhle ebusweni bemicu ye-pulp egcwele;

I-3.Isisindo esiphansi samangqamuzana i-polydadmac inomphumela omuhle wokugcina.Isisindo samangqamuzana esiphezulu sinomphumela omuhle wokuhlunga.Nokho, awukho umehluko obalulekile ekusebenzeni kwayo ekusizeni ukuhlunga nokugcinwa.