發(fā)布時(shí)間：2018-06-17 05:50

  本文選題：雞毛 + 纖維素��； 參考：《農(nóng)業(yè)機(jī)械學(xué)報(bào)》2017年11期

【摘要】：以雞毛(CF)和纖維素(Cell)為原料,氫氧化鉀/水/尿素(KOH/H2O/CO(NH2)2)體系為復(fù)合溶劑,堿解雞毛得到雞毛堿解液,然后向雞毛堿解液加入纖維素形成凝膠化的混合物,為發(fā)揮凝膠基質(zhì)中官能團(tuán)的保肥作用向其內(nèi)部加入微量元素Zn,經(jīng)過干燥并造粒,最后得到含N(150.6 mg/g)、K(136.7 mg/g)、Zn(13.9 mg/g)并同時(shí)含有硫、多肽和氨基酸等營(yíng)養(yǎng)成分的雞毛交聯(lián)纖維素凝膠肥料(Cell-CF)。利用紅外光譜(FTIR)、X射線衍射(XRD)、X射線光電子能譜(XPS)、熒光顯微鏡對(duì)Cell-CF水凝膠的交聯(lián)結(jié)構(gòu)及形成機(jī)理進(jìn)行分析與表征。結(jié)果表明:經(jīng)復(fù)合溶劑處理后雞毛和纖維素原料的結(jié)晶結(jié)構(gòu)破壞較完全,Cell-CF中的多肽和纖維素進(jìn)行了分子間的穿插折疊并形成了較強(qiáng)的分子間作用力,Cell-CF中的官能團(tuán)與鋅離子進(jìn)行了絡(luò)合反應(yīng)。另外,土壤培養(yǎng)實(shí)驗(yàn)和玉米盆栽實(shí)驗(yàn)結(jié)果表明,Cell-CF中鋅的生物有效性高、肥效期長(zhǎng),可作為一種長(zhǎng)效鋅肥。
[Abstract]:Using CFC and Cell2) as raw materials, potassium hydroxide / water / urea / Koh / Koh / Koh / H / H / H / CO NH 2 + 2) system was used as a compound solvent to alkaline hydrolyze chicken hair to obtain alkali decomposition solution of chicken hair, and then to add cellulose to the base hydrolyzed solution of chicken hair to form a gelation mixture. In order to exert the function of functional groups in the gel matrix, trace element Zn2 + was added into the gel matrix. After drying and granulating, the chicken hair crosslinked cellulose gel fertilizer Cell-CFN containing 136.7 mg / g N ~ (15. 6) mg / g ~ (-1) K ~ (2 +) and sulfur, polypeptide and amino acid were obtained. The results showed that the cross-linked cellulose gel fertilizer containing sulfur, polypeptide and amino acid was a cross-linked cellulose gel fertilizer containing sulfur, polypeptide and amino acid at the same time. The cross-linking structure and formation mechanism of Cell-CF hydrogels were analyzed and characterized by FTIR FTIR and X-ray photoelectron spectroscopy (XPS). The results showed that the crystal structure of chicken hair and cellulose was destroyed after the compound solvent treatment. The polypeptides and cellulose in Cell-CF were intermolecular and folded and formed the functional groups in Cell-CF. The complex reaction with zinc ion was carried out. In addition, the results of soil culture experiment and maize pot experiment showed that Zn in Cell-CF had high bioavailability and long fertilizer efficiency, so it could be used as a kind of long-term zinc fertilizer.
【作者單位】： 西北農(nóng)林科技大學(xué)資源環(huán)境學(xué)院;北京林業(yè)大學(xué)材料科學(xué)與技術(shù)學(xué)院;
【基金】：國(guó)際科技合作與交流專項(xiàng)(2015DFG31860)
【分類號(hào)】：TQ445.5

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