Anyị nwere ogologo akụkọ ihe mere eme nke ime akwụkwọ achara na China. morphology fiber bamboo na ihe mejupụtara kemịkalụ pụrụ iche. Nkezi eriri ogologo ogologo bụ ogologo, na eriri cell mgbidi microstructure pụrụ iche. Arụmọrụ mmepe ike n'oge pulping dị mma, na-enye pulp na-acha ọcha dị mma njirimara anya nke nnukwu opacity na ọnụọgụ ọkụ ọkụ. Ọdịnaya lignin nke akụrụngwa bamboo (ihe dị ka 23% -32%) dị elu, nke na-ekpebi oke alkali na ogo sulfidation n'oge pulping na nri (ogo sulfidation bụ n'ozuzu 20% -25%), nke dị nso na osisi coniferous. . Ọdịnaya hemicellulose dị elu na silicon nke akụrụngwa na-ewetakwa ụfọdụ ihe isi ike na arụ ọrụ nkịtị nke ịsacha pulp na mkpofu mmanya ojii na sistemụ akụrụngwa itinye uche. N'agbanyeghị nke a, akụrụngwa achara ka bụ ezigbo akụrụngwa maka imepụta akwụkwọ.
Usoro ịcha ọcha nke nnukwu na ọkara-sized kemịkalụ pulping osisi nke bamboo ga-mmalite n'ụzọ bụ isi na-ewere TCF ma ọ bụ ECF usoro ịcha ọcha. N'ikwu okwu n'ozuzu, jikọtara ya na ntọhapụ miri emi na ikuku oxygen nke pulping, TCF ma ọ bụ ECF teknụzụ ịcha ọcha na-eji. Dabere na ọnụ ọgụgụ nke usoro ịcha ọcha, pulp bamboo nwere ike ịcha ọcha ka ọ bụrụ nchapụta 88%-90%.
A na-eji ECF (ihe na-eme chlorine n'efu), nke nwere obere ịcha ọcha na pulp achara yana viscosity pulp dị elu, na-erukarị ihe karịrị 800ml/g. Achara achara na-acha ọcha nke ECF nwere mma pulp ka mma, na-eji obere kemịkalụ, ma nwee oke ịcha ọcha. N'otu oge ahụ, usoro akụrụngwa tozuru oke na arụ ọrụ arụ ọrụ kwụsiri ike.
Usoro nke ECF elemental chlorine ịcha ọcha nke anụ ahụ achara bụ: nke mbụ, a na-ewebata oxygen (02) n'ime ụlọ elu oxidation maka oxidative deligification, na mgbe ahụ, D0 bleaching-washing-Eop mmịpụta-asachapụ-D1 ịcha ọcha. n'usoro mgbe ịsachara. Ndị na-ahụ maka ịcha ọcha kemịkalụ bụ CI02 (chlorine dioxide), NaOH (sodium hydroxide), H202 (hydrogen peroxide), wdg. N'ikpeazụ, a na-emepụta pulp na-acha ọcha site na nkụchi obi. Ọcha nke anụ ahụ bamboo pulp na-acha ọcha nwere ike iru karịa 80%.
Oge nzipu: Ọgọst-22-2024
