竹材碎料复合板的结构和工艺的研究

A STUDY ON THE STRUCTURE AND TECHNOLOGY OF BAMBOO COMPOSITE BOARD

采用二次正交旋转组合设计方案，系统地研究了竹材碎料复合板与其主要影响因素之间的相关关系，得出了反映产品主要力学性能指标的预报模型，并从人造板制造工艺学及复合材料结构力学的原理出发，对各因素的作用规律作了剖析；建立了产品力学性能的综合评价函数，引入制造成本约束，利用优化的理论方法进行寻优，获得了切合生产实际的最佳结构和工艺。研究表明：竹材碎料复合板的厚度、密度及外层竹片厚度对产品的力学性能影响显著；碎料施胶量的作用较大；热压时间在研究范围内的影响程度较小；各因素与静曲强度、弹性模量的关系可用一组二次曲面定量反映。

The factors significantly affacting the physical-strength properties of the composite are studied by using the quadratic orthogonal roatable combined design scheme. A couple of optimum regression models fiting for various thickness are obtained. According to the theories of wood-panel prosessing and structural machanicals of composite material,analysing the interaction among the critical factors and the strength properties, a combine devalution function about the important indexes is set up. Under the control of the cost bodage, using the princial and methed of optimality, a group of optimum structural-technological parameters adapted for actual production are found. The test results demonstrat that the thickness and the density of the composite and the bamboo sheet thickness critically affact the product strength properties, the adhesive level of the particle take a bigger role, and the hot pressing time have the smallest effect. The interaction among the factors, MOR or MOE is indicated with a group of quadratic surfaces. MOR = 119.4+13.83x1 + 10.61x2 - 8.22x3- 22.86x5 + 10.01x1x3 + 7.29x1x5 MOE = 10090 + 373.7x1 + 555x2 -13778x5 + 263.3x1x2 + 372.2x1x3