小麦秸秆纤维地膜原料打浆工艺参数优化  

Optimization of pulping process parameters for preparing wheat straw fiber mulch material

作　　者：张颖[1] 邢振雷 宗浩 陈海涛[1] 李龙海 刘爽[1] Zhang Ying;Xing Zhenlei;Zong Hao;Chen Haitao;Li Longhai;Liu Shuang(College of Engineering,Northeast Agricultural University,Harbin 150030,China;Shandong Ruibosi Tobacco Co.,Ltd.,Linyi 276400,China;Shandong Linyi Tobacco Co.,Ltd.,Linyi 276002,China)

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]山东瑞博斯烟草有限公司,临沂276400 [3]山东临沂烟草有限公司,临沂276002

出　　处：《农业工程学报》2020年第11期248-253,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：中国青年科学基金项目(31701311);山东省烟草专卖局(公司)2018年面上科技项目;国家重点研发计划项目(2018YFD0201004)联合资助。

摘　　要：为探索打浆工艺参数对小麦秸秆纤维地膜原料打浆后的浆料性能的影响,试验研究了工艺参数优化组合,阐明了主要影响因素的影响规律。该研究以浸泡水温、浸泡时间、打浆时间、打浆负荷、浆池水量为试验因素,以干抗张指数、打浆度和浆料纤维长度为性能指标,采用五因素五水平(1/2实施)二次回归正交旋转中心组合设计参数优化试验,得到了小麦秸秆纤维地膜原料最优打浆工艺参数组合。结果表明:工艺参数组合为浸泡水温63℃、浸泡时间2 h、浆池水量13.50 L、打浆负荷4.57~5.50 kg和打浆时间0.25~0.68 h时,小麦秸秆纤维地膜浆料的干抗张指数大于5 N·m/g、打浆度小于50°SR,浆料纤维长度大于0.9 mm,在此条件下加工的浆料可以制造出小麦秸秆纤维基植物纤维地膜,其可满足水、旱田覆盖栽培作物技术要求。研究结果可为小麦秸秆制备全降解植物纤维地膜提供理论依据和技术支撑。Wheat straw is widely used as a kind of inexpensive,abundant,easily available,and sustainable raw material.At the same time,large amounts of wheat straw have still been burned on farmland in China,and have not been timely and properly applied.The smoke and dust from burning have highly adverse impacts on the environment.Therefore,it is urgent to study the pretreatment technology that is green,environmentally friendly,cost-effective and sustainable.Wheat straw was processed by physical methods,and the obtained raw fibers of wheat straw fiber mulch film were further pretreated by physical methods.In order to explore the influence of pulping process parameters on the pulp properties of the pulped raw fibers wheat straw fiber mulch film and the excellent pulp can be used to produce wheat straw fiber mulch film,the influence law of process parameters on the objective function was studied experimentally in this study.In the experiment,the whole wheat straw was pulverized by a crusher and the raw fibers of wheat straw fiber mulch film were obtained by a self-made straw fibers preparation machine.Taking the soaking water temperature,soaking time,beating time,beating load,and pulp volume as influence factors and the dry tensile index,beating degree and pulp fiber length as response indexes to evaluate the pulp properties.The five-factor and five-level(1/2 type)quadratic regression orthogonal rotation center combination design parameter optimization test method was adopt.The variances were analyzed using Design-Expert V6.0.10,and regression models were established between response indexes and influence factors.The analysis results showed that the beating time and the beating load had a very significant effect on the dry tensile index(P<0.01),and the interaction of various factors has no significant effect on the dry tensile index(P>0.05);the beating time,beating load,and the pulp volume had a very significant effect on the degree of beating(P<0.01),the interaction of soaking water temperature and soaking time had a signifi

关 键 词：地膜 试验 设计 优化 麦秸秆 

分 类 号：S216.2[农业科学—农业机械化工程]