I-PHA可降解生物塑料技術
來源(yuan)：WIT睿智環保科(ke)技控(kong)股有限公司 閱讀：4128 更新(xin)時間：2008-09-25 10:05在WIT技術(shu)平臺(tai)中的(de)I-PHA技術(shu)利用(yong)生(sheng)(sheng)活垃圾中的(de)有機物(wu)生(sheng)(sheng)產(chan)出可降(jiang)解生(sheng)(sheng)物(wu)塑(su)料(liao)(liao)。由于(yu)可降(jiang)解生(sheng)(sheng)物(wu)塑(su)料(liao)(liao)產(chan)品是由特殊微(wei)生(sheng)(sheng)物(wu)菌種產(chan)生(sheng)(sheng)的(de)一種高(gao)分子聚合代謝產(chan)物(wu)，因(yin)此(ci)可被自然(ran)界的(de)微(wei)生(sheng)(sheng)物(wu)在天然(ran)條件下降(jiang)解。應用(yong)領域廣泛(fan)，包括包裝材(cai)料(liao)(liao)、一次性使用(yong)餐具(ju)、顆粒肥(fei)料(liao)(liao)包埋材(cai)料(liao)(liao)、農用(yong)薄膜、醫藥材(cai)料(liao)(liao)等(deng)。
I-PHA是一個創新的(de)環境生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)技術(shu)，將(jiang)有機廢棄物(wu)(wu)(wu)如食物(wu)(wu)(wu)殘余和工、農生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)廢料(liao)(liao)(liao)(BIOMASS)轉化(hua)成(cheng)(cheng)(cheng)可降(jiang)(jiang)解生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)塑(su)(su)(su)(su)料(liao)(liao)(liao)和土壞改良(liang)劑(ji)。該技術(shu)利(li)用特定(ding)微(wei)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)及(ji)(ji)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)脢催化(hua)劑(ji)，將(jiang)復雜原料(liao)(liao)(liao)(如淀粉、蛋白(bai)質(zhi)、油脂等)降(jiang)(jiang)解成(cheng)(cheng)(cheng)簡單(dan)發酵(jiao)(jiao)(jiao)中間體，并在(zai)(zai)特定(ding)條(tiao)件下，將(jiang)其(qi)聚合成(cheng)(cheng)(cheng)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)塑(su)(su)(su)(su)料(liao)(liao)(liao)大分子(zi)。食物(wu)(wu)(wu)殘余先經高溫(wen)滅菌，在(zai)(zai)嚴格控制下發酵(jiao)(jiao)(jiao)。整個降(jiang)(jiang)解/聚合過(guo)(guo)程(cheng)在(zai)(zai)單(dan)一生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)反(fan)應器(qi)內(nei)由兩種(zhong)微(wei)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)同(tong)步完(wan)成(cheng)(cheng)(cheng)，降(jiang)(jiang)低成(cheng)(cheng)(cheng)本(ben)達70%以上。收獲(huo)的(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)塑(su)(su)(su)(su)料(liao)(liao)(liao)含20%-30%細胞質(zhi)。經專(zhuan)有化(hua)學技術(shu)處理，將(jiang)所有細胞質(zhi)溶(rong)解，純化(hua)為熱塑(su)(su)(su)(su)性(xing)塑(su)(su)(su)(su)料(liao)(liao)(liao)。通過(guo)(guo)控制細胞的(de)新陳代謝途徑(jing)及(ji)(ji)原料(liao)(liao)(liao)預(yu)處理，I-PHA技術(shu)可生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)具不同(tong)性(xing)能之(zhi)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)塑(su)(su)(su)(su)料(liao)(liao)(liao)，或脆硬如聚丙烯(xi)(POLYPROPYLENE)，或堅韌如聚乙烯(xi)(POLYETHYLENE)。生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)塑(su)(su)(su)(su)料(liao)(liao)(liao)具有天然的(de)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)物(wu)(wu)(wu)降(jiang)(jiang)解性(xing)和生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)態(tai)兼(jian)容(rong)性(xing)，不產(chan)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)有害降(jiang)(jiang)解產(chan)物(wu)(wu)(wu)。產(chan)品(pin)經純化(hua)后，符(fu)合塑(su)(su)(su)(su)料(liao)(liao)(liao)工業衛生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)標(biao)準。發酵(jiao)(jiao)(jiao)及(ji)(ji)產(chan)品(pin)純化(hua)過(guo)(guo)程(cheng)在(zai)(zai)常溫(wen)常壓下完(wan)成(cheng)(cheng)(cheng)，具成(cheng)(cheng)(cheng)本(ben)效益。該技術(shu)現受多個專(zhuan)利(li)法保護。
I-PHA充分利(li)用(yong)了(le)有(you)限之(zhi)自然資(zi)源，降低生(sheng)物塑(su)料之(zhi)生(sheng)產(chan)成本(ben)。可(ke)降解(jie)生(sheng)物塑(su)料的廣泛應(ying)用(yong)，將進(jin)一(yi)步解(jie)決塑(su)料廢物對生(sheng)態環(huan)境的危害。
