合成树脂瓦结构
Structure of synthetic resin tile
合成树脂瓦的主要成分是合成树脂，即有人工合成的一类高分子聚合物。在外力作用下可呈塑性流动状态，某些性质与天然树脂相似。
The main component of synthetic resin tile is synthetic resin, which is a kind of synthetic polymer. Under the action of external force, it can be in plastic flow state, and some properties are similar to natural resin.
合成树脂瓦的面层材料最为关键，面层材料的选用直接影响树脂瓦的使用寿命，大多数情况下选用优秀的超耐候材料ASA或者PMMA,通过表面共挤最后成型。产品的耐候性直接导致了合成树脂瓦的使用寿命。
The surface material of synthetic resin tile is the most important one. The selection of surface material directly affects the service life of resin tile. In most cases, excellent super weather resistant material ASA or PMMA is selected and finally formed by surface coextrusion. The weatherability of the product directly leads to the service life of the synthetic resin tile.