Cov khoom siv tshuaj lom neeg ntawm cov khoom siv xyoob

Cov ntaub ntawv xyoob muaj cov cellulose ntau, cov fiber zoo li nyias, cov khoom siv kho tshuab zoo thiab plasticity. Ua ib qho khoom siv zoo rau cov ntaub ntawv ntoo ua ntawv raw, xyoob tuaj yeem ua tau raws li qhov xav tau ntawm cov pulp rau kev ua ntawv nruab nrab thiab siab. Kev tshawb fawb tau qhia tias cov tshuaj lom neeg ntawm xyoob thiab cov khoom fiber muaj cov khoom pulping zoo. Kev ua tau zoo ntawm xyoob pulp yog qhov thib ob tsuas yog tom qab coniferous ntoo pulp, thiab zoo dua li cov ntoo pulp dav thiab nyom pulp. Myanmar, Is Nrias teb thiab lwm lub tebchaws yog cov thawj coj hauv ntiaj teb hauv kev ua xyoob pulping thiab papermaking. Tuam Tshoj cov xyoob pulp thiab cov khoom ntawv feem ntau yog imported los ntawm Myanmar thiab Is Nrias teb. Kev txhim kho kev lag luam xyoob pulping thiab papermaking yog qhov tseem ceeb heev rau kev txo qhov tsis txaus ntawm cov ntaub ntawv ntoo pulp tam sim no.

Xyoob loj hlob sai thiab feem ntau tuaj yeem sau tau hauv 3 txog 4 xyoos. Tsis tas li ntawd, cov hav zoov xyoob muaj cov nyhuv kho cov pa roj carbon zoo, ua rau cov txiaj ntsig kev lag luam, kev nyab xeeb thiab kev sib raug zoo ntawm kev lag luam xyoob pom tseeb dua. Tam sim no, Tuam Tshoj cov thev naus laus zis thiab cov khoom siv tsim cov xyoob pulp tau maj mam loj hlob, thiab cov khoom siv tseem ceeb xws li kev txiav thiab pulping tau tsim hauv tsev. Cov kab ntau lawm xyoob loj thiab nruab nrab tau raug lag luam thiab muab tso rau hauv kev tsim khoom hauv Guizhou, Sichuan thiab lwm qhov chaw.

Cov yam ntxwv tshuaj lom neeg ntawm xyoob
Ua ib yam khoom siv biomass, xyoob muaj peb yam khoom tseem ceeb hauv tshuaj: cellulose, hemicellulose, thiab lignin, ntxiv rau me ntsis pectin, hmoov txhuv nplej siab, polysaccharides, thiab quav ciab. Los ntawm kev tshuaj xyuas cov tshuaj lom neeg thiab cov yam ntxwv ntawm xyoob, peb tuaj yeem nkag siab txog qhov zoo thiab qhov tsis zoo ntawm xyoob ua cov khoom siv pulp thiab ntawv.
1. Xyoob muaj cov cellulose ntau
Cov ntawv ua tiav zoo tshaj plaws muaj qhov xav tau siab rau cov khoom siv pulp raw, xav tau cov cellulose ntau dua, qhov zoo dua, thiab cov ntsiab lus qis dua ntawm lignin, polysaccharides thiab lwm yam extracts, qhov zoo dua. Yang Rendang et al. piv cov khoom siv tshuaj lom neeg tseem ceeb ntawm cov ntaub ntawv biomass xws li xyoob (Phyllostachys pubescens), ntoo thuv masson, 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 lignin yog xyoob (30.67%), ntoo thuv masson (27.97%), poplar (17.10%), thiab nplej straw (11.93%). Nws tuaj yeem pom tias ntawm plaub cov ntaub ntawv sib piv, xyoob yog cov khoom siv pulping thib ob tsuas yog tom qab ntoo thuv masson.
2. Cov xyoob fibers ntev dua thiab muaj qhov sib piv loj dua
Qhov nruab nrab ntev ntawm cov 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 ntawm cov qauv yog 122 ~ 165; qhov nruab nrab phab ntsa tuab ntawm cov fiber yog 3.90 ~ 5.25 μm, thiab qhov sib piv ntawm phab ntsa-rau-qhov yog 4.20 ~ 7.50, uas yog cov fiber tuab-phab ntsa nrog qhov sib piv loj dua. Cov ntaub ntawv pulp feem ntau vam khom cellulose los ntawm cov ntaub ntawv biomass. Cov ntaub ntawv biofiber zoo rau kev ua ntawv xav tau cov ntsiab lus cellulose siab thiab cov ntsiab lus lignin qis, uas tsis tsuas yog tuaj yeem ua rau cov pulp ntau dua, tab sis kuj txo cov tshauv thiab cov extracts. Xyoob muaj cov yam ntxwv ntawm cov fibers ntev thiab qhov sib piv loj, uas ua rau cov fiber sib xyaw ntau zaus hauv ib cheeb tsam tom qab xyoob pulp ua rau hauv ntawv, thiab lub zog ntawm daim ntawv zoo dua. Yog li ntawd, kev ua haujlwm pulping ntawm xyoob yog ze rau ntawm ntoo, thiab muaj zog dua li lwm cov nroj tsuag nyom xws li straw, nplej straw, thiab bagasse.
3. Cov xyoob fiber muaj zog fiber ntau
Xyoob cellulose tsis yog tsuas yog rov ua dua tshiab, lwj tau, sib haum xeeb nrog lub cev, hydrophilic, thiab muaj cov khoom siv kho tshuab thiab cua sov zoo heev, tab sis kuj muaj cov khoom siv kho tshuab zoo. Qee cov kws tshawb fawb tau ua qhov kev sim tensile ntawm 12 hom xyoob fibers thiab pom tias lawv cov elastic modulus thiab tensile lub zog ntau dua li cov ntoo ntoo hav zoov uas loj hlob sai. Wang et al. piv rau cov khoom siv kho tshuab tensile ntawm plaub hom fibers: xyoob, kenaf, fir, thiab ramie. Cov txiaj ntsig tau qhia tias cov tensile modulus thiab lub zog ntawm xyoob fiber siab dua li cov ntawm lwm peb cov ntaub ntawv fiber.
4. Xyoob muaj cov tshauv siab thiab cov ntsiab lus rho tawm
Piv nrog ntoo, xyoob muaj cov tshauv ntau dua (kwv yees li 1.0%) thiab 1% NAOH extract (kwv yees li 30.0%), uas yuav tsim ntau yam tsis huv thaum lub sijhawm pulping, uas tsis zoo rau kev tso tawm thiab kev kho dej khib nyiab ntawm kev lag luam pulp thiab ntawv, thiab yuav ua rau cov nqi peev ntawm qee yam khoom siv nce ntxiv.

Tam sim no, qhov zoo ntawm Yashi Paper cov khoom siv ntawv xyoob tau mus txog EU ROHS tus qauv xav tau, dhau EU AP (2002) -1, US FDA thiab lwm yam kev xeem thoob ntiaj teb, dhau FSC 100% daim ntawv pov thawj hav zoov, thiab tseem yog thawj lub tuam txhab hauv Sichuan kom tau txais daim ntawv pov thawj kev nyab xeeb thiab noj qab haus huv hauv Suav teb; tib lub sijhawm, nws tau raug kuaj ua "kev saib xyuas zoo kuaj xyuas cov khoom tsim nyog" los ntawm National Paper Products Inspection Center rau kaum xyoo sib law liag, thiab kuj tau txais txiaj ntsig xws li "National Quality Stable Qualified Brand and Product" los ntawm China Quality Tour.