due to 后接动词过去式的疑问

The additional fibres induce pores due to reduced dispersion efficiency.

这是英语科技文献中的一句话，我感觉due to 中的to是介词啊，reduced应该改为reducing啊，难道是把reduced作为形容词看待？

The additional fibres induce pores due to reduced dispersion efficiency.

是的，reduced是过去分词，在这里被用作形容词。类似的使用方法如：

Due to increased demand, another six thousand copies are to be printed. 因为需要量增加，将再加印六千册。

Many species of animals and plants have been put out of existence due to complicated reasons. 因为复杂是什么原因很多动植物物种已经灭绝。