本发明涉及高分子复合材料制备领域，提供了一种高硼含量酚醛树脂屏蔽材料的制备方法，先将间苯二酚与甲醛反应，再将反应产物与甲基硼酸反应，最终生成硼酚醛树脂。本发明的优点在于：通过改变反应单体，提高游离酚羟基数量，降低硼酸官能度，双措并举，可将硼含量从现有的不足5wt% 提高至12wt%, 从而获得满足中子屏蔽要求的高硼含量的硼酚醛树脂。

The present invention relates to the field of polymer composite preparation, and provides a preparation method for the shielding material of phenolic aldehyde resin with high boron content, first combining resorcinol with formaldehyde, and then combining the reaction product with methylboronic acid to produce boron phenolic resin. The advantages of the present invention are that by changing the reaction monomer, increasing the number of free phenolic hydroxyl group, and reducing the function of boric acid, the boron content can be increased from less than 5 wt% to 12 wt%, thus obtaining a borophenolic resin with high boron content that meets the neutron shielding requirements.