Chemical properties ye bamboo zvinhu

Bamboo zvinhu zvine yakakwira cellulose yemukati, slender faibha chimiro, yakanaka mechanical zvivakwa uye plasticity. Seimwe nzira yakanaka yekugadzira mapepa ekugadzira zvinhu zvehuni, bamboo inogona kusangana nezvinodiwa zve pulp kugadzira mapepa epakati uye epamusoro. Zvidzidzo zvakaratidza kuti bamboo makemikari ekuumbwa uye fiber zvimiro zvine yakanaka pulping zvivakwa. Kuita kwemushenjere pulp ndeyechipiri chete kune coniferous huni pulp, uye iri nani pane yakafara-leaved huni pulp nehuswa. Myanmar, India nedzimwe nyika dziri pamberi penyika mumunda we bamboo pulping uye papermaking. Mushenjere pulp uye zvigadzirwa zvemapepa zveChina zvinonyanya kutengwa kubva kuMyanmar neIndia. Nesimba kuvandudza iyo bamboo pulping uye indasitiri yekugadzira mapepa kwakakosha zvikuru kudzikisa kushomeka kwazvino kwehuni pulp zvinhu.

Bamboo inokura nekukurumidza uye inogona kukohwa mumakore matatu kusvika mana. Pamusoro pezvo, masango e bamboo ane simba rakasimba rekugadzirisa kabhoni, zvichiita kuti hupfumi, ecological uye magariro mabhenefiti eindasitiri ye bamboo awedzere mukurumbira. Parizvino, tekinoroji yekugadzira bamboo pulp yeChina nemidziyo zvakakura zvishoma nezvishoma, uye michina mikuru yakadai sekuveura ndebvu uye kupuruzira yakagadzirwa mudzimba. Makuru uye epakati-saizi bamboo mapepa ekugadzira mapepa akagadzirwa maindasitiri uye akaiswa mukugadzirwa muGuizhou, Sichuan nedzimwe nzvimbo.

Chemical properties ye bamboo
Sezvinhu zvebiomass, bamboo ine matatu makuru emakemikari zvikamu: cellulose, hemicellulose, uye lignin, kuwedzera kune shoma shoma pectin, starch, polysaccharides, uye wakisi. Nekuongorora kuumbwa kwemakemikari uye maitiro e bamboo, tinogona kunzwisisa zvakanakira nekuipira kwe bamboo se pulp uye pepa zvinhu.
1. Bamboo ine high cellulose content
Pepa repamusoro rakapedzwa rine zvakakwirira zvinodikanwa zve pulp mbishi zvinhu, zvinoda iyo yakakwira iyo cellulose yemukati, zviri nani, uye yakadzika iyo yemukati ye lignin, polysaccharides uye zvimwe zvakatorwa, zviri nani. Yang Rendang et al. akaenzanisa makuru emakemikari anoumba biomass zvinhu zvakaita se bamboo (Phyllostachys pubescens), masson pine, poplar, uye uswa hwegorosi ndokuona kuti cellulose yemukati yaive masson pine (51.20%), bamboo (45.50%), poplar (43.24%), uye mashanga egorosi (35,23%); iyo hemicellulose (pentosan) zvinyorwa zvaive poplar (22.61%), bamboo (21.12%), uswa hwegorosi (19.30%), uye masson pine (8.24%); iyo lignin yemukati yaive bamboo (30.67%), masson pine (27.97%), poplar (17.10%), uye uswa hwegorosi (11.93%). Zvinogona kuonekwa kuti pakati pezvinhu zvina zvekufananidza, bamboo ndiyo pulping mbishi zvinhu yechipiri chete kune masson pine.
2. Bamboo fibers dzakareba uye dzine chiyero chikuru
Hurefu hwehurefu hwemushenjere hunosvika 1.49 ~ 2.28 mm, hupamhi hwepakati ndeye 12.24 ~ 17.32 μm, uye chiyero che 122 ~ 165; avhareji yemadziro efiber ndeye 3.90 ~ 5.25 μm, uye madziro-to-cavity reshiyo i 4.20 ~ 7.50, inova yakakora-yakavakirwa fiber ine yakakura chikamu ratio. Pulp zvinhu zvinonyanya kuvimba ne cellulose kubva ku biomass zvinhu. Yakanaka biofiber mbishi zvinhu zvekugadzira mapepa inoda yakakwira cellulose yemukati uye yakaderera lignin yemukati, iyo haigone kungowedzera goho repulp, asi zvakare kuderedza madota uye zvakatorwa. Bamboo ine hunhu hwehurefu hwefiber uye yakakura mativi reshiyo, izvo zvinoita kuti faibha ichirukwa kakawanda pachikamu cheyuniti mushure mekunge bamboo pulp yaitwa bepa, uye kusimba kwepepa kuri nani. Naizvozvo, kupuruzira kuita kweshenjere kuri pedyo nekwehuni, uye kwakasimba kudarika zvimwe zvirimwa zveuswa zvakaita semashanga, mashanga egorosi, uye bagasse.
3. Bamboo fiber ine high fiber simba
Bamboo cellulose haingogadziriswizve, inoshatisa, biocompatible, hydrophilic, uye ine yakanakisa mechanic uye inodzivirira kupisa zvimiro, asiwo ine yakanaka michina zvinhu. Dzimwe nyanzvi dzakaita bvunzo dzakasimba pamhando gumi nembiri dzeshinda dzemushenjere uye dzakaona kuti elastic modulus uye kusimba kwesimba zvaipfuura zviya zvemusango zvinokura nekukurumidza. Wang et al. akaenzanisa kusimba kwemichina yemhando ina dzefiber: bamboo, kenaf, fir, uye ramie. Mhedzisiro yacho yakaratidza kuti iyo tensile modulus uye kusimba kwe bamboo fiber yaive yakakwira kupfuura iyo yemamwe matatu fiber zvinhu.
4. Bamboo ine madota akakwirira uye inobvisa zvinyorwa
Kana ichienzaniswa nehuni, bamboo ine madota akakwira (anenge 1.0%) uye 1% NAOH yakatorwa (inenge 30.0%), iyo inoburitsa tsvina yakawanda panguva yekupuruzira, iyo isingaenderane nekubuda uye kurapa kwemvura yakasviba ye pulp uye. indasitiri yemapepa, uye ichawedzera mutengo wekudyara weimwe michina.

Parizvino, mhando yeYashi Pepa's bamboo pulp bepa zvigadzirwa zvasvika kuEU ROHS zvakajairwa zvinodiwa, zvakapasa EU AP (2002) -1, US FDA nedzimwe nyika dzepasirese chikafu-giredhi bvunzo, dzakapasa FSC 100% sango certification, uye iri zvakare kambani yekutanga muSichuan kuwana iyo China chengetedzo uye hutano chitupa; panguva imwecheteyo, yakatorwa se "mhando yekutarisa sampling inokodzera" chigadzirwa neNational Paper Products Inspection Center kwemakore gumi akateedzana, uye yakahwina mikudzo yakadai se "National Quality Stable Qualified Brand and Product" kubva kuChina Hunhu. Tour.