Development of ecosystem harmonic vegetation block with bio polyurethane made from used paper

在河边，利用植被块自然恢复的工业方法是重要的。它考虑使用用过的纸制成的聚氨酯树脂来制作多孔块。本研究旨在阐明植被块体的性质，提出其强度适中、弹性模量适中、生态系统和谐的条件。对树脂进行了各种强度试验，并通过暴露等进行了生物污垢试验。研究结果表明，植被块体可以在不破坏根系的范围内调节强度，具有适当的生态系统协调性。但由于孔隙大小分布不均匀，持水性较低，不利于植株生长。如果树脂的粘度降低，植被块的孔径变小。人们会认为将来考试是必要的。

In the riverside, the industrial method naturally restored using the vegetation block is important. It thought about the porous block using the polyurethane resin made from the used paper. The purpose of this study is to clarify the properties of the vegetation block, and to propose the condition of moderate strength, modulus of elasticity, and the ecosystem harmony. Various strength tests of the resin and the biofouling examinations by the exposure, etc. were executed. As a result, it has been understood that the vegetation block can adjust strength to the extent not destroyed with the root, and has appropriate ecosystem harmony. However, water holding property was low, and the plant was not able to grow up enough because the pore size distribution was rough. If the viscosity of the resin is lowered, the pore diameter of the vegetation block becomes small. It will be thought that the examination is necessary in the future.