Sinembali ende yokwenza iphepha le-bamboo eTshayina. I-bamboo fiber morphology kunye nokwakheka kweekhemikhali zikhethekileyo. Umndilili wobude befayibha ubude, kwaye i-microstructure ye-fiber cell wall ikhethekile. Ukusebenza kophuhliso lwamandla ngexesha le-pulping kulungile, ukunika i-pulp exutywe iipropathi ezilungileyo ze-opacity ephezulu kunye ne-coefficient yokusabalalisa ukukhanya. Umxholo we-lignin wezinto ezikrwada ze-bamboo (malunga ne-23% -32%) uphezulu, omisela isixa esikhulu sealkali kunye neqondo le-sulfidation ngexesha lokucofa nokupheka (iqondo le-sulfidation ngokubanzi li-20% -25%), elikufutshane ne-coniferous wood. . Umgangatho ophezulu we-hemicellulose kunye ne-silicon yemathiriyeli ekrwada kwakhona kuzisa ubunzima obuthile ekusebenzeni okuqhelekileyo kokuhlamba i-pulp kunye nokuphuma kotywala obumnyama kunye nenkqubo yezixhobo zoxinaniso. Ngaphandle koku, izinto ezikrwada ze-bamboo ziseyinto elungileyo yokwenza iphepha.
Inkqubo yokuxutywa kwezityalo zemichiza emikhulu kunye nobukhulu obuphakathi kwi-bamboo iya kwamkela ngokusisiseko inkqubo ye-TCF okanye ye-ECF yokucoca. Ngokuqhelekileyo, kudityaniswe ne-deignification enzulu kunye ne-oxygen delignification ye-pulping, i-TCF okanye i-ECF ye-bleaching technology isetyenziswa. Ngokuxhomekeke kwinani lezigaba zokujija, i-bamboo pulp inokufakwa ibleach ukuya kwi-88% -90% yokukhanya.
Izihlunu zethu ze-bamboo pulp ezixutyiweyo zonke zenziwe ibleached ngeECF (elemental chlorine free), enelahleko encinci yebleaching kwipulp ye-bamboo kunye ne-viscosity ephezulu yepulp, efikelela ngokubanzi ngaphezulu kwe-800ml/g. Izicubu ze-bamboo ezixutyiweyo ze-ECF zinomgangatho ongcono we-pulp, zisebenzisa iikhemikhali ezincinci, kwaye zisebenza kakuhle kakhulu. Ngelo xesha, inkqubo yezixhobo ikhulile kwaye ukusebenza okusebenzayo kuzinzile.
Amanyathelo enkqubo yeECF elemental chlorine-free bleaching of bamboo tissues are: okokuqala, ioksijini (02) ingeniswa kwinqaba yeoxidation ukwenzela uhlengahlengiso lweoxidative, emva koko iD0 ibleaching-washing-Eop extraction-washing-D1 bleaching-washing iyenziwa. ngokulandelelana emva kokuhlamba. Iikhemikhali eziphambili ze-bleaching agents ziyi-CI02 (i-chlorine dioxide), i-NaOH (i-sodium hydroxide), i-H202 (i-hydrogen peroxide), njl. Ubumhlophe be-bamboo pulp tissue enokufikelela ngaphezu kwama-80%.
Ixesha lokuposa: Aug-22-2024
