Cov ntaub ntawv xyoob muaj cov ntsiab lus cellulose siab, cov duab zoo nkauj, cov khoom siv zoo thiab cov yas. Raws li lwm cov khoom siv zoo rau cov ntaub ntawv ntoo ua cov ntaub ntawv raw, xyoob tuaj yeem ua tau raws li qhov xav tau ntawm kev ua cov ntawv nruab nrab thiab qib siab. Kev tshawb fawb tau pom tias xyoob tshuaj muaj pes tsawg leeg thiab fiber ntau muaj cov khoom zoo pulping. Qhov kev ua tau zoo ntawm xyoob pulp yog qhov thib ob tsuas yog rau cov ntoo ntoo coniferous, thiab zoo dua li cov nplooj ntoo dav dav thiab cov nyom nyom. Myanmar, Is Nrias teb thiab lwm lub teb chaws yog nyob rau hauv pem hauv ntej ntawm lub ntiaj teb no nyob rau hauv lub teb ntawm xyoob pulping thiab papermaking. Tuam Tshoj lub xyoob pulp thiab ntawv cov khoom yog mas los ntawm Myanmar thiab Is Nrias teb. Kev loj hlob ntawm xyoob pulping thiab papermaking kev lag luam yog qhov tseem ceeb heev rau kev txo qis tam sim no ntawm cov ntaub ntawv nyoos ntoo.
Xyoob loj hlob sai thiab feem ntau tuaj yeem sau tau hauv 3 txog 4 xyoos. Tsis tas li ntawd, xyoob hav zoov muaj zog carbon fixation nyhuv, ua rau kev lag luam, ecological thiab kev sib raug zoo cov txiaj ntsig ntawm xyoob kev lag luam nce. Tam sim no, Tuam Tshoj lub xyoob pulp ntau lawm tshuab thiab khoom siv tau maj mam matured, thiab cov khoom tseem ceeb xws li shaving thiab pulping tau domestically tsim. Loj thiab nruab nrab-loj xyoob papermaking ntau lawm kab tau industrialized thiab muab tso rau hauv ntau lawm hauv Guizhou, Sichuan thiab lwm qhov chaw.
Tshuaj thaj chaw ntawm xyoob
Raws li cov khoom siv biomass, xyoob muaj peb yam tshuaj tseem ceeb: cellulose, hemicellulose, thiab lignin, ntxiv rau me me ntawm pectin, starch, polysaccharides, thiab siv quav ciab. Los ntawm kev txheeb xyuas cov tshuaj lom neeg muaj pes tsawg leeg thiab cov yam ntxwv ntawm xyoob, peb tuaj yeem nkag siab qhov zoo thiab qhov tsis zoo ntawm xyoob ua cov khoom siv pulp thiab ntawv.
1. Xyoob muaj cov ntsiab lus cellulose siab
Superior tiav daim ntawv muaj cov kev xav tau siab rau cov ntaub ntawv raw cov ntaub ntawv, xav tau cov ntsiab lus cellulose ntau dua, qhov zoo dua, thiab cov ntsiab lus qis ntawm lignin, polysaccharides thiab lwm yam extracts, qhov zoo dua. Yang Rendang et al. piv rau cov khoom tseem ceeb ntawm cov khoom siv biomass xws li xyoob (Phyllostachys pubescens), masson Pine, poplar, thiab nplej straw thiab pom tias cov ntsiab lus cellulose yog masson ntoo thuv (51.20%), xyoob (45.50%), poplar (43.24%), thiab nplej straw (35.23%); cov ntsiab lus hemicellulose (pentosan) yog poplar (22.61%), xyoob (21.12%), nplej straw (19.30%), thiab masson ntoo thuv (8.24%); Cov ntsiab lus ntawm lignin yog xyoob (30.67%), masson Pine (27.97%), poplar (17.10%), thiab nplej straw (11.93%). Nws tuaj yeem pom tau tias ntawm plaub cov ntaub ntawv sib piv, xyoob yog cov khoom siv raw khoom thib ob rau masson ntoo thuv.
2. Xyoob fibers ntev dua thiab muaj qhov sib piv loj dua
Qhov nruab nrab ntev ntawm xyoob fibers yog 1.49 ~ 2.28 hli, qhov nruab nrab txoj kab uas hla yog 12.24 ~ 17.32 μm, thiab qhov sib piv yog 122 ~ 165; Qhov nruab nrab phab ntsa tuab ntawm cov fiber ntau yog 3.90 ~ 5.25 μm, thiab phab ntsa-rau-kab noj hniav sib piv yog 4.20 ~ 7.50, uas yog cov tuab-walled fiber ntau nrog qhov sib piv loj dua. Cov ntaub ntawv pulp feem ntau vam khom cellulose los ntawm cov ntaub ntawv biomass. Cov ntaub ntawv zoo biofiber rau papermaking yuav tsum muaj cov ntsiab lus ntawm cov cellulose siab thiab cov ntsiab lus tsis tshua muaj lignin, uas tuaj yeem ua rau tsis tsuas yog ua kom cov nqaij mos tawm los, tab sis kuj txo cov tshauv thiab rho tawm. Xyoob muaj cov yam ntxwv ntawm cov fibers ntev thiab loj nam piv, uas ua rau cov fiber ntau interweaving lub sij hawm nyob rau hauv ib chav tsev tom qab xyoob pulp yog ua nyob rau hauv daim ntawv, thiab daim ntawv lub zog yog zoo dua. Yog li ntawd, lub pulping kev ua tau zoo ntawm xyoob yog ze rau ntawm cov ntoo, thiab muaj zog dua lwm yam nroj tsuag xws li straw, nplej straw, thiab bagasse.
3. Xyoob fiber ntau muaj fiber ntau zog
Xyoob cellulose tsis yog tsuas yog rov ua dua tshiab, degradable, biocompatible, hydrophilic, thiab muaj cov khoom zoo heev thiab cov khoom siv hluav taws xob, tab sis kuj muaj cov khoom zoo. Qee cov kws tshawb fawb tau ua qhov kev ntsuam xyuas tensile ntawm 12 hom xyoob fibers thiab pom tias lawv cov elastic modulus thiab tensile lub zog tshaj cov khoom ntawm cov ntoo loj hlob sai sai. Wang et al. piv cov tensile mechanical zog ntawm plaub hom fibers: xyoob, kenaf, fir, thiab ramie. Cov txiaj ntsig tau pom tias qhov tensile modulus thiab lub zog ntawm xyoob fiber ntau yog siab dua li ntawm peb cov ntaub ntawv fiber ntau.
4. Xyoob muaj tshauv siab thiab cov ntsiab lus rho tawm
Piv nrog cov ntoo, xyoob muaj cov hmoov tshauv ntau dua (kwv yees li 1.0%) thiab 1% NAOH extract (kwv yees li 30.0%), uas yuav tsim cov impurities ntau dua thaum lub sij hawm pulping txheej txheem, uas yog tsis conducive rau cov paug thiab dej khib nyiab kho ntawm lub pulp thiab kev lag luam ntawv, thiab yuav ua rau nce nqi peev ntawm qee cov khoom siv.
Tam sim no, qhov zoo ntawm Yashi Paper's xyoob cov ntaub ntawv cov khoom lag luam tau mus txog EU ROHS tus qauv yuav tsum tau ua, dhau EU AP (2002)-1, US FDA thiab lwm yam kev ntsuas khoom noj thoob ntiaj teb, dhau FSC 100% daim ntawv pov thawj hav zoov, thiab tseem yog thawj lub tuam txhab hauv Sichuan kom tau txais Tuam Tshoj kev nyab xeeb thiab kev noj qab haus huv daim ntawv pov thawj; Nyob rau tib lub sijhawm, nws tau raug coj los ua "zoo saib xyuas cov qauv tsim nyog" cov khoom lag luam los ntawm National Paper Products Inspection Center rau kaum xyoo sib law liag, thiab kuj tau txais kev qhuas xws li "National Quality Stable Qualified Brand and Product" los ntawm Tuam Tshoj Zoo. Ncig saib.
Post lub sij hawm: Sep-03-2024
