生物预处理协同膨化爆破制备秸秆纤维原料工艺参数优化

S216.2; 为提高秸秆纤维地膜力学性能、减少打浆时间,该研究提供了一种生物预处理协同膨化爆破制备秸秆纤维地膜原料的方法.为探究该项技术的工艺参数优化组合,应用三因素五水平二次正交旋转中心组合试验方法,选取预处理时间、主轴转速、模头间隙为试验因素,以抗张指数、打浆时间、纤维长宽比作为性能指标,得到了工艺参数优化组合,结果表明:工艺参数组合为预处理天数10 d、主轴转速120r/min、模头间隙3 mm,所得纤维地膜抗张指数为9.57 Nm/g、打浆时间为81.4 min,纤维长宽比为10.97,与理论优化值相对误差不大于5％.在此条件下制备的水稻秸秆纤维基地膜,可满足水、旱田覆盖作物栽培技术...

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Published in农业工程学报 Vol. 40; no. 22; pp. 183 - 190
Main Authors 李龙海, 高创, 范思远, 徐心航, 姜涛, 刘爽, 李睿, 陈海涛
Format Journal Article
LanguageChinese
Published 黑龙江省主要农作物生产机械化材料化技术创新中心,哈尔滨 150030%东北农业大学大学工程学院,哈尔滨 150030 01.11.2024
东北农业大学大学工程学院,哈尔滨 150030
Subjects
生物预处理
力学性能
纤维地膜
rice straw
fiber mulch
pulping energy
打浆能量
biological pretreatment
水稻秸秆
mechanical properties
Online AccessGet full text
ISSN1002-6819
DOI10.11975/j.issn.1002-6819.202407194

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Abstract S216.2; 为提高秸秆纤维地膜力学性能、减少打浆时间,该研究提供了一种生物预处理协同膨化爆破制备秸秆纤维地膜原料的方法.为探究该项技术的工艺参数优化组合,应用三因素五水平二次正交旋转中心组合试验方法,选取预处理时间、主轴转速、模头间隙为试验因素,以抗张指数、打浆时间、纤维长宽比作为性能指标,得到了工艺参数优化组合,结果表明:工艺参数组合为预处理天数10 d、主轴转速120r/min、模头间隙3 mm,所得纤维地膜抗张指数为9.57 Nm/g、打浆时间为81.4 min,纤维长宽比为10.97,与理论优化值相对误差不大于5％.在此条件下制备的水稻秸秆纤维基地膜,可满足水、旱田覆盖作物栽培技术要求,研究结果可为水稻秸秆制备全降解植物纤维地膜的制作提供依据和技术支持.
AbstractList S216.2; 为提高秸秆纤维地膜力学性能、减少打浆时间,该研究提供了一种生物预处理协同膨化爆破制备秸秆纤维地膜原料的方法.为探究该项技术的工艺参数优化组合,应用三因素五水平二次正交旋转中心组合试验方法,选取预处理时间、主轴转速、模头间隙为试验因素,以抗张指数、打浆时间、纤维长宽比作为性能指标,得到了工艺参数优化组合,结果表明:工艺参数组合为预处理天数10 d、主轴转速120r/min、模头间隙3 mm,所得纤维地膜抗张指数为9.57 Nm/g、打浆时间为81.4 min,纤维长宽比为10.97,与理论优化值相对误差不大于5％.在此条件下制备的水稻秸秆纤维基地膜,可满足水、旱田覆盖作物栽培技术要求,研究结果可为水稻秸秆制备全降解植物纤维地膜的制作提供依据和技术支持.
Abstract_FL Mulching as a traditional field management technique,boasts the benefits of improving soil ecology and maintaining soil temperature and moisture.The biodegradable plant fiber mulch produced from crop straw boasts abundant raw material sources and has similar temperature and moisture retention effects to plastic mulch,which would have no phenomenon of soil hardening,and compromised crop cultivation and sowing quality.The quality of straw fiber obtained through physical methods cannot meet the demand of mulch film.To improve the mechanical properties of straw fiber mulch film and reduce pulping time,this study introduces a method of preparing straw fiber mulch raw materials through biological pretreatment combined with extrusion-explosion.To explore the optimal combination of process parameters for this technology,three-factor and five-level quadratic orthogonal central composite rotatable design experimental approach was employed,with pretreatment time,spindle speed,and Clearance of mould head selected as the experimental factors,and tensile index,pulping time,and fiber aspect ratio as performance indicators.The results showed that pretreatment time and spindle speed,spindle speed and clearance of mould head had very significant effects on the tensile index(P＜0.01).Pretreatment time and clearance of mould head have significant effect on tensile index(P＜0.05).Pretreatment time and spindle speed,pretreatment time and clearance of mould head have significant effect on pulping time(P＜0.05).Spindle speed and pretreatment time had very significant effect(P＜0.01)on pulping time,the spindle speed and clearance of mould head has no significant effect on fiber aspect ratio(P＞0.05).Pretreatment time and spindle speed have very significant effect on fiber aspect ratio(P＜0.01).Pretreatment time and clearance of mould head have significant effect on fiber aspect ratio(P＜0.05).The optimal combination of process parameters was determined to be 10 days of pretreatment,a spindle speed of 120 r/min,and a Clearance of mould head of 3 mm.The resulting fiber mulch exhibited a tensile index of 9.57 N·m/g,a pulping time of 81.4 minutes,and a fiber aspect ratio of 10.97,with a relative error not exceeding 5％compared to the theoretical optimal values.The rice straw fiber-based mulch prepared under these conditions meets the technical requirements for crop cultivation in both irrigated and dry fields.This study provides a basis and technical support for the production of fully biodegradable plant fiber mulch film from rice straw.
Author 高创
姜涛
徐心航
范思远
李龙海
李睿
陈海涛
刘爽
AuthorAffiliation 东北农业大学大学工程学院,哈尔滨 150030;黑龙江省主要农作物生产机械化材料化技术创新中心,哈尔滨 150030%东北农业大学大学工程学院,哈尔滨 150030
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Author_FL XU Xinhang
GAO Chuang
FAN Siyuan
LI Rui
JIANG Tao
CHEN Haitao
LI Longhai
LIU Shuang
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DocumentTitle_FL Optimization of the parameters for the preparation of straw fiber raw material by biological pretreatment and synergistic expansion blasting
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Issue 22
Keywords 生物预处理
力学性能
纤维地膜
rice straw
fiber mulch
pulping energy
打浆能量
biological pretreatment
水稻秸秆
mechanical properties
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Title 生物预处理协同膨化爆破制备秸秆纤维原料工艺参数优化
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