Preparation method of environment-friendly paperboard

The invention relates to a preparation method of an environment-friendly paperboard and belongs to the chemical field. The preparation method of the environment-friendly paperboard comprises the following steps: (1) respectively preparing wood fiber pulp and cotton fiber pulp; (2) respectively preparing into a wood fiber layer and a cotton fiber layer, respectively lightly-pressing, dewatering and forming the wood fiber layer and the cotton fiber layer, then superposing the wood fiber layer and the cotton fiber layer and then dewatering, pressing and forming again; (3) performing primary drying for two times after pressing; (4) polishing a sample, cutting and forming. According to the preparation method of the environment-friendly paperboard, provided by the invention, wood pulp resources are saved, and products are favorably recycled. 本发明涉及一种环保纸板的制备方法，属于化工领域。一种环保纸板的制备方法，包括以下步骤：（1）分别制备木质纤维浆料与棉质纤维浆料；（2）分别制成木质纤维层和棉质纤维层，将木质纤维层与棉质纤维层分别进行轻压脱水成型，然后将棉质纤维层与木质纤维层叠合，再次脱水压榨成型；（3）压榨后进行两次初级干燥；（4）样品打磨，裁切成型。本发明提供的一种环保纸板的制备方