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Machinability studies of corn-based DDGS as biofiller in phenolic resin.

机译：玉米基DDGS作为生物填充剂在酚醛树脂中的可加工性研究。

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摘要

Plastics are manufactured from petroleum resources that are not renewable and not biodegradable. To conserve the environmental impact of plastic products and enhance their biodegradability, many plastic products utilize low-cost, bio-based materials as fillers. Fillers are inert materials added to plastics to reduce the cost of the final product by reducing the use of polymer resin. Ideally, the filler is added in a concentration by weight so as to maintain the mechanical and physical properties of the resin. With the rapid growth in the fuel ethanol industry in recent years, considerable research is being devoted for the productive utilization of processing co-products like distillers dried grains with solubles (DDGS). As DDGS residues contain high fiber levels, it is viable as a biofiller in plastics to produce a novel biomaterial.;In this project, DDGS was blended with phenolic resin at two different levels by weight and then compression molded. The major objective is to find the optimum machining conditions of the specimens. The research presents a study on the machinability of these specimens using a carbide tool. Controlled machining experiments were performed on the workpiece. A statistical technique, using orthogonal arrays and analysis of variance, was employed to investigate the influence of cutting parameters on specific cutting pressure and surface roughness.;The mathematical models for surface roughness were being developed in terms of speed and feed, at constant depth of cut, and by response surface methodology. Response surface contours were constructed in speed and feed planes using MINITAB. From these contours it is possible to select a combination of cutting speed and feed that reduces the surface roughness. As the depth of cut was kept constant for all the machining conditions, dimensional consistency was verified by constructing another set of contour plots. Results from both the contours were compared and the optimum range of the machining conditions was obtained.
机译：塑料是由不可再生和不可生物降解的石油资源制成的。为了保护塑料产品对环境的影响并增强其生物降解性，许多塑料产品都使用低成本的生物基材料作为填充剂。填料是添加到塑料中的惰性材料，可通过减少聚合物树脂的使用来降低最终产品的成本。理想地，以重量浓度添加填料，以保持树脂的机械和物理性能。近年来，随着燃料乙醇行业的快速增长，大量的研究投入到生产副产品的生产利用上，如蒸馏酒，可溶谷物（DDGS）。由于DDGS残留物中纤维含量高，因此可以用作塑料中的生物填充剂，从而生产出一种新型的生物材料。主要目的是找到样品的最佳加工条件。该研究提出了使用硬质合金工具对这些样品进行切削加工的研究。在工件上进行了受控的机加工实验。利用正交阵列和方差分析的统计技术，研究切削参数对比切削压力和表面粗糙度的影响。在恒定的切削深度下，根据速度和进给量建立了表面粗糙度的数学模型。切割，并采用响应面方法。使用MINITAB在速度和进给平面上构造响应表面轮廓。从这些轮廓中可以选择降低表面粗糙度的切削速度和进给的组合。由于在所有加工条件下切削深度均保持恒定，因此通过构建另一组轮廓图来验证尺寸一致性。比较了两个轮廓的结果，并获得了最佳加工条件范围。

著录项

  • 作者

    Malempati, Pratyusha.;

  • 作者单位

    Northern Illinois University.;

  • 授予单位 Northern Illinois University.;
  • 学科 Engineering Materials Science.
  • 学位 M.S.
  • 年度 2008
  • 页码 78 p.
  • 总页数 78
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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