用微生物发酵法生产的第三代生物可降解材料PHA(塑料),在医学、农业、食品、日用消费品等方面正在开发出越来越多的用途。在外科领域,典型的对PHA的应用是做手术试纸、绷带以及手术用手套的润滑粉,也可以用于与血液相容性的人体内膜,还可以用于血管移植物脉管代替物以及骨裂固定盘等。另外,PHA的水解单体又是药物合成中具有重要意义的手性药物中间体,在合成衣药和抗生素中有着不可或缺的重要作用。仅就农业领域,PHA可用做农药控制释放的载体。工程人员还可以利用其作为静电印刷中的上色剂,解决了纸张回收中遇到的塑性油膜难以与纸张脱离的难题。由于PHA产生气体具有阻隔性,在经过加工后可以使它 PHA (plastic), the third generation of biodegradable material produced by microbial fermentation, is being used in more and more applications in medicine, agriculture, food and consumer products. In the field of surgery, typical applications for PHA are lubricants for surgery test strips, bandages and surgical gloves, as well as for blood-compatible human endometrium, as well as vascular graft substitutes and Fracture fixed disk and so on. In addition, the hydrolyzed monomer of PHA is also an important chiral drug intermediate in drug synthesis, which plays an indispensable and important role in the synthesis of drugglasses and antibiotics. In agriculture alone, PHA can be used as a carrier for the controlled release of pesticides. Engineers can also use it as electrostatic printing in the toner to solve the paper recycling encountered in the plastic film difficult to get rid of the problem with the paper. Because PHA produces gas barrier properties, after processing it can make it