| 摘要 |
A process for recycling products by homogenizing the monomers of products of different molecular weights. Initially, the products are triturated and milled to relatively small granules. Subsequently they are sprayed with a compound that includes 70-90 % motor oil, 3-10 % agglutinant nopal resin and 5-15 % monobutylic ether of diethylene glycol. The impregnation of this compound homogenizes polymers of different molecular weights by freeing up compatible monomers. Depending on the amount of the compound used, the rigidity of the resulting extruded board is varied. For rigid boards, it has been found that approximately 200 ml/kg of the compound should be used. After being sprayed, the granules are extruded (42) and passed through a temperature gradient filed (60) ranging from 250 DEG to 140 DEG C. The board is then transported to a cutting stage (90). |
