由于它们均有一个比较复杂的接枝工艺过程，而且采用自由基型接枝共聚，所以为了降低成本它们只能加工成粗粉末或颗粒状。对粉状而言，接枝比例高粉末会比较细（100目左右）。对颗粒状而言接枝比例高，颗粒会比较脆。
Because they all have a relatively complex grafting process and use free radical grafting copolymerization, they can only be processed into coarse powder or granular in order to reduce costs. For powders, the powders with high grafting ratio will be finer (about 100 meshes). For granular, the grafting ratio is high, and the granules are brittle.