玉米秸秆保温板力学性能指标分析  

Mechanical Property Indexes of Corn Straw Insulation Board

作　　者：陈丽梅[1] 孟艺玮 张程 CHEN Limei;MENG Yiwei;ZHANG Cheng(College of Engineering Technology,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学工程技术学院,长春130118

出　　处：《吉林农业大学学报》2021年第4期495-500,共6页Journal of Jilin Agricultural University

基　　金：吉林省科技发展计划项目(20150204029SF,20170204002SF);吉林省科技发展重点项目(吉科合字第20200403139SF)。

摘　　要：选择施胶量、秸秆板厚、热压温度作为与秸秆板力学性能指标相关的因素进行三元二次回归正交试验设计,并分析所选因素与秸秆板力学性能指标间的关系。将试验所得的数据输入DPS数据处理平台,利用DPS的分析软件对试验结果进行回归分析,并分析单因素对各力学性能指标的影响。通过试验和对试验结果的分析可知,施胶量、热压温度对试验指标内结合强度有着显著的影响;施胶量、秸秆板厚、热压温度,对试验指标2 h吸水膨胀率有着显著的影响。得到的较优结果组合是:施胶量12.3%、秸秆板厚为11.8 cm、热压温度180℃。此时,压制出的保温板满足保温材料力学性能要求且能节约成本。对该组合的数学模型分析可知,所得回归模型拟合度好,具有实际意义。The mechanical property indexes(internal bonding strength and 2 h water swelling rate) should be within the ideal range of insulation materials range for the study of the performance of corn straw insulation board. In this study, we selected sizing amount, straw board thickness and hot pressing temperature as the factors related to the mechanical property indexes of straw board to carry out a ternary quadratic regression orthogonal test design, and analyzed the relationship between the selected factors and the mechanical property indexes of straw board. The data obtained from the test were input into the DPS data processing platform, and the analysis software of DPS was used to regress the test results and analyze the trend of the effects of single factors on each mechanical property index. Through the test and the analysis of the test results, it can be seen that the factors of sizing amount and hot pressing temperature have a significant effect on the test index of internal bond strength;sizing amount, straw board thickness and hot pressing temperature have a significant effect on the test index of 2 h water absorption and swelling rate. The better combination of results obtained was: 12.3% sizing amount, 11.8 cm straw board thickness, and 180 ℃ hot pressing temperature. At this time, the pressed insulation board meets the mechanical properties of the insulation material and saves processing cost. The analysis of this combined mathematical model shows that the resulting regression model fits well and has practical significance.

关 键 词：玉米秸秆板 力学性能指标 三元二次回归正交试验 

分 类 号：S220.1[农业科学—农业机械化工程]