| 摘要 |
Method for the preparation of transparent and porous plastic materials, particularly based on acrylate and methacrylate; the materials obtained may have the shape of plates, for example, shaped parts or also polylaminate body cores. The method consists in mixing first massive beads of transparent polymer, provided with a swelling agent with a reacting resin; softening then the mixture by heating or swelling in order to obtain a material having relatively big pores. Then, the beads may be interposed. At that time, the reaction resin is cured. The material thus obtained presents, in its mass, relatively big closed cellular pores, limited by each other; when the material is made in the form of plates, their surfaces are smooth and free of pores. Such plates may be used advantageaously as construction and heat isulating materials, allowing a good passage of light in the construction of green houses. |
