Development of Process for Producing Metal/Plastic Composite Tile Using Wasted Plastics

利用废旧塑料生产金属/塑料复合瓦工艺开发

• 批准号: 11650777
• 负责人: YAMAZAKI Ryohei
• 金额: $ 2.05万
• 依托单位: Toyama University (2000)Nagoya University (1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650777/
• 关键词: wasted plastic; metal; plastic composite tile; fluidized bed; electromagnetic induction heating; coating; composite particle; bending strength; compressive strength

A fluidized bed coater was manufactured by installing a fluidized bed column (90 mm i.d., 400 mm height, quartz glass) in a electromagnetic induction coil (wave frequency : 4MHz, maximum electromagnetic wave power output : 40kW) for preparing composite iron particles covered with plastic particles. Tile-shaped composite moldings were prepared using the composite particles as raw material. The following results were obtained.(1) Preparation of composite particles and evaluation of their properties1-1) In the case where epoxy resin particles are used as plastic material, composite particles are produced successfully above the power output of 4kW.The diameter of composite particles increases linearly with the power output. The geometric standard deviation of particle size ranges from 1.1 to 1.2 independent of the size of iron particles and power output.1-2) The diameter of iron/ epoxy resin composite particles increases with the size of epoxy resin particles at the same power output.1-3) The diameter of composite particles with polyethylene is larger than epoxy resin at the same ion power output.(2) Preparation of composite moldings and evaluation of their propertiesComposite moldings were prepared by shaping composite particles in a mold (40×10×10mm) with a heating and pressurizing machine. Molding temperatures were kept at about the melting points of plastics. The following findings were obtained by measuring the density, bending strength and compressive strength of the moldings.2-1) Iron/ epoxy resin and iron/ polyethylene composite moldings are successfully manufactured as ordered mixtures.2-2) The density of composite moldings can be controlled by adjusting electromagnetic wave power output in the coating process.2-3) In the case of iron/ polyethylene composite moldings, plastic deformation can be suppressed under larger compressive load, and consequently the strain produced in the molding can be made smaller than that in pure polyethylene moldings.

通过安装流化床柱（90 mm i.d.，400 mm高，石英玻璃）在电磁感应线圈（波频率：4 MHz，最大电磁波功率输出：40 kW）中进行，用于制备覆盖有塑料颗粒的复合铁颗粒。以该复合颗粒为原料，制备了瓦形复合模制品。获得了以下结果。(1)复合粒子的制备及其性能评价1 -1）以环氧树脂粒子为塑性材料，在4kW以上的功率输出下，成功地制备了复合粒子，复合粒子的粒径随功率输出线性增加。粒径的几何标准偏差范围为1.1 ~ 1.2，与铁颗粒的尺寸和功率输出无关。1 -2）在相同的功率输出下，铁/环氧树脂复合颗粒的直径随着环氧树脂颗粒的尺寸而增大。1 -3）在相同的离子功率输出下，与聚乙烯复合的颗粒直径大于环氧树脂。(2)复合材料模制品的制备及其性能评价将复合材料颗粒在40×10× 10 mm的模具中用加热加压机成型，制备出复合材料模制品。成型温度保持在塑料的熔点左右。通过测量模制品的密度、抗弯强度和抗压强度，获得了以下发现：2 -1）铁/环氧树脂和铁/聚乙烯复合模制品被成功地制造为有序混合物。2 -2）复合模制品的密度可以通过调节涂覆过程中的电磁波功率输出来控制。2 -3）在铁/聚乙烯复合模制品的情况下，在较大的压缩载荷下，可以抑制塑性变形，因此，可以使模塑中产生的应变小于纯聚乙烯模塑中产生的应变。