钙塑瓦楞复合纸板力学性能的研究

发布时间：2018-06-26 01:45

本文选题：钙塑瓦楞 + 平压强度　；参考：《太原科技大学》2014年硕士论文

【摘要】：钙塑瓦楞复合纸板具有瓦楞纸板良好的印刷性能和缓冲性能等优点，又具有钙塑板的防水、抗压强度高、韧性好等特点，在市场上还没有这样的包装材料，所以对此种新型包装生产工艺参数和材料力学性能方面的研究也没有。为此，本文首先通过实验方法，对钙塑瓦楞复合纸板平压强度、边压强度和戳穿强度的进行了测试分析,同时将钙塑瓦楞复合纸板与普通5层瓦楞纸板进行对比；最后对钙塑瓦楞复合纸板作了平压准静态和碰撞冲击试验，并对实验结果进行分析研究，，研究的结果如下：对钙塑片材和钙塑瓦楞复合纸板的生产温度和生产速度作了实验研究，实验结果表明：A.生产钙塑片才时，当生产温度为时195C，生产的钙塑片材的拉伸强度和弯曲强度都是最高的；当温度为195C，螺杆的转速为245r/min时，生产出的钙塑片材的拉伸强度最大。B.生产钙塑瓦楞复合纸板时，当生产温度为160oC时，其平压强度最高；当生产速度为3.5m/min，钙塑瓦楞复合纸板的平压强度最大。通过实验方法，对3层钙塑瓦楞复合纸板平压强度、边压强度和戳穿强度的进行了测试分析,同时将钙塑瓦楞复合纸板与普通5层瓦楞纸板进行对比，结果表明，3层钙塑瓦楞复合纸板的边压强度为0.650kN，平压强度为1.274kN，戳穿强度为7.5J；5层瓦楞纸板的边压强度为0.378kN，平压强度为0.437kN，戳穿强度为6.75J。3层钙塑瓦楞复合纸板可以代替5层瓦楞纸板来进行产品的包装。通过钙塑瓦楞复合纸板平压准静态和碰撞冲击试验，得到了钙塑瓦楞复合纸板准静态及半正弦脉冲激励下的变形规律，结果表明钙塑瓦楞复合纸板应力-应变曲线呈线弹性区域、波动式上升屈服区域和压实区域；考虑粘滞性的因素，建立了钙塑瓦楞复合纸板的静态、动态非线性本构关系，成功识别出模型中的参数。以上的研究成果对于钙塑瓦楞复合纸板的推广使用提供了参考依据，其动态模型可直接应用于考虑钙塑瓦楞复合纸板箱缓冲作用的产品跌落冲击响应与优化设计，并且本文所用的碰撞冲击试验方法为表征缓冲材料的力学行为提供了一个新的方法。
[Abstract]:Calcium-plastic corrugated composite cardboard has the advantages of good printing performance and cushioning performance of corrugated paperboard, as well as the waterproofing, high compressive strength and good toughness of calcium plastic board. There is no such packaging material in the market. Therefore, there is no research on the technological parameters and mechanical properties of the new packaging. For this reason, this paper first through the experimental method, the calcium plastic corrugated composite board flat compression strength, the edge compression strength and the piercing strength has carried on the test analysis, simultaneously carries on the contrast between the calcium plastic corrugated composite board and the ordinary 5 layers corrugated paper board; Finally, the calc-plastic corrugated composite paperboard was tested by static and impact tests, and the experimental results were analyzed and studied. The results are as follows: the production temperature and production speed of calcium plastic sheet and calcium plastic corrugated composite paperboard are studied experimentally. When producing calcium plastic sheet, the tensile strength and bending strength of calcium plastic sheet are the highest when the production temperature is 195C, and when the temperature is 195C and the rotational speed of screw is 245r/min, the tensile strength of calcium plastic sheet produced is the highest. When producing calcium plastic corrugated composite board, when the production temperature is 160 OC, its flat compressive strength is the highest, and when the production speed is 3.5 m / min, the flat compressive strength of calcium plastic corrugated composite board is the highest. In this paper, three layers of calcium plastic corrugated composite paperboard were tested and analyzed by means of experiment, such as flat compression strength, edge pressing strength and puncture strength. At the same time, the calcium plastic corrugated composite board was compared with the ordinary 5 layers corrugated board. The results showed that the edge compressive strength, flat compressive strength and piercing strength of the three layers were 0.650kN, 1.274kN and 7.5J, respectively. The edge compression strength of 5 layers corrugated board is 0.378kN, the flat compressive strength is 0.437kN, the puncture strength is 6.75J.3 layer calcium plastic corrugated composite board can replace 5 layers corrugated board to carry on the packing of the product. The deformation law of calcium plastic corrugated composite paperboard under quasi-static and semi-sinusoidal pulse excitation was obtained through the quasi-static and impact tests on calc-plastic corrugated composite paperboard. The results show that the stress-strain curve of calcium plastic corrugated composite paperboard is linear elastic region, fluctuating rising yield region and compaction area, and the static and dynamic nonlinear constitutive relations of calcium plastic corrugated composite paperboard are established considering the viscosity factor. The parameters in the model were successfully identified. The above research results provide a reference for the popularization and use of calcium plastic corrugated composite paperboard, and its dynamic model can be directly applied to the product drop impact response and optimization design considering the cushioning effect of calcium plastic corrugated composite cardboard box. In addition, the impact test method used in this paper provides a new method to characterize the mechanical behavior of buffer materials.
【学位授予单位】：太原科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB484.1

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