But they are the natural cellulose, mechanim and plastic polymers synthetic polymers, cellulose is a polymer with hydrophilia, which is totally hydraphobic.

• 但其本原都是纤维素不合子布局的人造聚合物，与塑料等分解聚合物差别的是，纤维素是具有干火性的矮不合子，而后者是合座疏火性的。