Anyị nwere akụkọ ihe mere eme ogologo oge nke ime akwụkwọ bamboo na China. Ọdịdị eriri bamboo na ihe mejupụtara kemịkalụ pụrụ iche. Ogologo eriri nkezi dị ogologo, microstructure mgbidi eriri sel dịkwa iche. Mmepe ike n'oge pulping dị mma, na-enye pulp ahụ e ji acha ọcha ezigbo ihe ngosi anya nke nnukwu opacity na oke mgbasa ọkụ. Ọdịnaya lignin nke ihe eji eme bamboo (ihe dị ka 23%-32%) dị elu, nke na-ekpebi oke alkali na ọkwa sulfidation dị elu n'oge pulping na esi nri (ogo sulfidation na-abụkarị 20%-25%), nke dị nso na osisi coniferous. Oke ọdịnaya hemicellulose na silicon nke ihe eji eme ihe na-ewetakwa ụfọdụ ihe isi ike na ọrụ nkịtị nke ịsa pulp na sistemụ igwe na-ekupụ ihe ọṅụṅụ ojii na ntinye uche. N'agbanyeghị nke a, ihe eji eme bamboo ka bụ ezigbo ihe eji eme akwụkwọ.
Usoro ịcha ọcha nke osisi bamboo buru ibu na nke ọkara ga-agbaso usoro ịcha ọcha TCF ma ọ bụ ECF. N'ozuzu, yana nhazi miri emi na nhazi ikuku oxygen nke ịcha ọcha, a na-eji teknụzụ ịcha ọcha TCF ma ọ bụ ECF. Dabere na ọnụọgụgụ nke ọkwa ịcha ọcha, enwere ike ịcha ọcha bamboo ruo 88%-90% na-enwu.
A na-eji ECF (enweghị ihe nwere chlorine) ehicha anụ ahụ anyị nke e ji balm mee, nke na-ebelata ịcha ọcha na anụ balm na oke viscosity dị elu, na-erukarị ihe karịrị 800ml/g. Anụ balm nke e ji balm mee nke ECF nwere mma pulp ka mma, ha anaghị eji kemịkalụ dị obere, ha nwekwara ike ịcha ọcha nke ọma. N'otu oge ahụ, sistemụ akụrụngwa ahụ etoola nke ọma, arụmọrụ ya dịkwa mma.
Usoro usoro nke ịsacha anụ ahụ bamboo nke na-enweghị chlorine nke ECF bụ: nke mbụ, a na-etinye oxygen (02) n'ime ụlọ elu oxidation maka iwepụ oxidative, emesịa a na-eme D0 bleaching-washing-Eop extraction-washing-D1 bleaching-washing n'usoro mgbe ịsachara ya. Ihe ndị bụ isi na-eme ka ọ dị ọcha bụ CI02 (chlorine dioxide), NaOH (sodium hydroxide), H202 (hydrogen peroxide), wdg. N'ikpeazụ, a na-emepụta pulp ahụ e ji bleaching mee site na nrụgide mmiri. Ọcha nke anụ ahụ bamboo e ji bleaching mee nwere ike iru ihe karịrị 80%.
Oge ozi: Ọgọst-22-2024
