Kayan bamboo suna da babban abun ciki na cellulose, siffar fiber siriri, kyawawan kayan inji da filastik. A matsayin kyakkyawan madadin kayan aikin katako na itace, bamboo na iya biyan buƙatun ɓangaren litattafan almara don yin takarda mai matsakaici da tsayi. Nazarin ya nuna cewa sinadaran bamboo da abubuwan fiber suna da kyawawan kaddarorin pulping. Ayyukan ɓangaren bamboo shine na biyu kawai ga ɓangaren katako na coniferous, kuma ya fi ɓangarorin itace mai faɗi da ɓangaren ciyawa. Kasar Myanmar da Indiya da sauran kasashe su ne a sahun gaba a duniya a fannin aikin bamboo da yin takarda. Kayan bamboo na kasar Sin da kayayyakin takarda ana shigo da su ne daga Myanmar da Indiya. Ƙarfafa haɓaka masana'antar sarrafa bamboo da yin takarda na da matuƙar mahimmanci don rage ƙarancin albarkatun ƙasa na itace a halin yanzu.
Bamboo yana girma da sauri kuma ana iya girbe shi gabaɗaya a cikin shekaru 3 zuwa 4. Bugu da ƙari, gandun daji na bamboo suna da tasiri mai ƙarfi na gyaran carbon, wanda ke sa fa'idodin tattalin arziki, muhalli da zamantakewa na masana'antar bamboo ya zama sananne. A halin yanzu, fasaha da kayan aikin bamboo na kasar Sin sun girma sannu a hankali, kuma an samar da manyan na'urori irin su aski da tarkace a cikin gida. An inganta manyan layukan sarrafa takarda na gora da kuma samar da su a Guizhou, Sichuan da sauran wurare.
Chemical Properties na bamboo
A matsayin kayan halitta, bamboo yana da manyan sinadarai guda uku: cellulose, hemicellulose, da lignin, baya ga ƙaramin adadin pectin, sitaci, polysaccharides, da kakin zuma. Ta hanyar nazarin sinadarai da halayen bamboo, za mu iya fahimtar fa'ida da rashin amfanin bamboo azaman ɓangaren litattafan almara da takarda.
1. Bamboo yana da babban abun ciki na cellulose
Mafi kyawun takarda da aka gama yana da manyan buƙatu don albarkatun ɓangaren litattafan almara, suna buƙatar mafi girman abun ciki na cellulose, mafi kyau, da ƙananan abun ciki na lignin, polysaccharides da sauran abubuwan cirewa, mafi kyau. Yang Rendang et al. idan aka kwatanta da manyan sinadarai na kayan biomass kamar bamboo (Phyllostachys pubescens), masson pine, poplar, da alkama bambaro kuma an gano cewa abun cikin cellulose shine masson pine (51.20%), bamboo (45.50%), poplar (43.24%). da bambaro alkama (35.23%); abun ciki na hemicellulose (pentosan) ya kasance poplar (22.61%), bamboo (21.12%), alkama bambaro (19.30%), da masson pine (8.24%); abun ciki na lignin shine bamboo (30.67%), masson pine (27.97%), poplar (17.10%), da bambaro na alkama (11.93%). Ana iya ganin cewa a cikin kayan kwatancen guda huɗu, bamboo shine ɗanyen kayan da ke juyewa na biyu kawai ga masson pine.
2. Filayen bamboo sun fi tsayi kuma suna da rabo mafi girma
Matsakaicin tsayin bamboo zaruruwa shine 1.49 ~ 2.28 mm, matsakaicin diamita shine 12.24 ~ 17.32 μm, kuma yanayin rabo shine 122 ~ 165; Matsakaicin kauri na bango na fiber shine 3.90 ~ 5.25 μm, kuma bangon-zuwa-rago rabo shine 4.20 ~ 7.50, wanda shine fiber mai kauri mai kauri tare da rabo mai girma. Kayayyakin ɓangaren litattafan almara galibi sun dogara da cellulose daga kayan biomass. Kyakkyawan kayan albarkatun biofiber don yin takarda yana buƙatar babban abun ciki na cellulose da ƙananan abun ciki na lignin, wanda ba zai iya ƙara yawan amfanin ƙasa ba, har ma ya rage ash da tsantsa. Bamboo yana da halaye na dogayen zaruruwa da babban rabo, wanda ke sa fiber ɗin ke yin saƙa da yawa a kowane yanki bayan an yi ɓangaren bamboo zuwa takarda, kuma ƙarfin takarda ya fi kyau. Saboda haka, aikin bamboo yana kusa da na itace, kuma ya fi sauran tsire-tsire ciyayi irin su bambaro, bambaro, da jakunkuna.
3. Fiber bamboo yana da ƙarfin fiber mai yawa
Bamboo cellulose ba kawai sabuntawa ba ne, mai lalacewa, mai daidaitawa, hydrophilic, kuma yana da kyawawan kayan aikin injiniya da zafi, amma kuma yana da kyawawan kayan aikin injiniya. Wasu malaman sun gudanar da gwaje-gwajen juzu'i a kan nau'ikan filayen bamboo iri 12 kuma sun gano cewa modual ɗinsu na roba da ƙarfin ƙarfin su ya zarce na filayen itacen dajin da ke saurin girma. Wang et al. idan aka kwatanta da ƙayyadaddun kayan inji na nau'ikan zaruruwa huɗu: bamboo, kenaf, fir, da ramie. Sakamakon ya nuna cewa ma'aunin ƙarfi da ƙarfin fiber bamboo ya fi na sauran kayan fiber uku.
4. Bamboo yana da babban toka kuma yana fitar da abun ciki
Idan aka kwatanta da itace, bamboo yana da mafi girma abun ciki na toka (kimanin 1.0%) da kuma 1% NAOH tsantsa (kimanin 30.0%), wanda zai haifar da mafi ƙazanta a lokacin aikin pulping, wanda ba shi da kyau ga zubar da ruwa da sharar gida na ɓangaren litattafan almara. masana'antar takarda, kuma za ta ƙara yawan kuɗin zuba jari na wasu kayan aiki.
A halin yanzu, ingancin samfuran takarda bamboo na Yashi Paper ya kai daidaitattun buƙatun EU ROHS, sun wuce EU AP (2002) -1, FDA ta Amurka da sauran gwaje-gwaje na ƙimar abinci na duniya, sun sami takardar shedar FSC 100% na gandun daji, kuma Har ila yau, shi ne kamfani na farko a Sichuan da ya sami takardar shedar aminci da lafiya ta kasar Sin; A sa'i daya kuma, an zana shi a matsayin samfurin "ingantacciyar kulawar da ta dace" ta Cibiyar Binciken Kayayyakin Takardu ta kasar tsawon shekaru goma a jere, kuma ta samu karramawa kamar "National Quality Stable Qualified Brand and Product" daga ingancin ingancin kasar Sin. Yawon shakatawa.
Lokacin aikawa: Satumba-03-2024
