He roa taatau mo te hanga pepa bamboo i Haina. He mea motuhake te ahua o te muka o te bamboo me te hanganga matū. He roa te roa o te muka, he mea motuhake te hangahanga moroiti o te pakitara muka. He pai te mahi whakawhanaketanga kaha i te wa o te penupenu, e pai ai te ahua o te kiko o te kiko o te puru me te whakarea marara marama. Ko te ihirangi lignin o te bamboo raw rauemi (mo te 23% -32%) he tiketike, e whakatau ana i te nui o te alkaline me te tohu whakangao i te wa e pupuhi ana me te tunu kai (ko te tohu whakangao i te nuinga o te 20% -25%), e tata ana ki te rakau coniferous. . Ko te nui o te hemicellulose me te silicon o nga rauemi mata ka mau mai ano etahi uaua ki te mahi noa o te horoi o te penupenu me te whakaetonga waipiro pango me te punaha taputapu kukū. Ahakoa tenei, he pai tonu nga rauemi mata o te bamboo mo te hanga pepa.
Ko te punaha whakangao o nga tipu whakato matū nui me te reo-rahi o te bamboo ka mau te tikanga whakangao TCF, ECF ranei. I te nuinga o te korero, ka honoa me te whakangao hohonu me te whakamaaramatanga o te hāora o te pulping, ka whakamahia te hangarau whakakikorua o te TCF, ECF ranei. I runga ano i te maha o nga wahanga whakangao, ka taea te whakapouri i te penupenu bamboo ki te 88%-90% kanapa.
Ko o tatou kopa penupenu o te bamboo kua pania katoa ki te ECF (maota koretake), he iti ake te mate whakangao i runga i te penupenu bamboo me te pokey teitei ake o te penupenu, ka eke ki te 800ml/g. He pai ake te kounga penupenu o nga kopa bamboo ECF, he iti ake te whakamahi matū, he nui te pai o te whakapuranga. I te wa ano, he pakari te punaha taputapu, he pumau te mahi whakahaere.
Ko nga tukanga o te whakangiwakore kore-kore o te ECF o nga kopa bamboo ko: tuatahi, ka whakauruhia te hāora (02) ki roto i te pourewa whakahaoratanga mo te whakakorenga o te waikura, katahi ka mahia te D0 bleaching-horoi-Eop tangohanga-horoi-D1 bleaching-horoi. i te raupapa i muri i te horoinga. Ko nga tino matū whakapouri ko te CI02 (chlorine dioxide), NaOH (sodium hydroxide), H202 (hydrogen peroxide), me etahi atu. I te mutunga, ka hangahia te penupenu bleached e te pehanga waikore. Ko te ma o te kiko kiko o te bamboo bleached ka tae atu ki te 80%.
Te wa tuku: Akuhata-22-2024
