2024年7月18日 星期一 19:43:55

马铃薯淀粉造纸新技术

    芬兰技术研究中心(VTT)对外声称,已经开发出一种新造纸技术,利用一种来自于马铃薯淀粉的材料来代替油基填料和涂布颜料生产出新纸种。这种淀粉纸是完全可降解的,且比传统的用矿物填料(如高岭土、滑石粉、碳酸钙)生产的纸要轻20%~30%。这种新技术的制造工艺可行性已经在美国西密歇根州大学的中试纸厂得到证实,但还需要工厂化试验。
    由于该技术能使造纸厂家减少对环境的影响,同时又能节约成本,因此引起世界范围内的广泛关注。利用新材料生产可以在较低的操作温度与压力下进行压光,节约了能源。此外,对纸机的磨损降低,也减少了机器的维护成本。所生产的纸由于相对较轻,可以减少运输成本,一旦被回收利用可以转换成生物能,比传统纸排放更少的废气。
    最初,试图以天然材料原淀粉来代替油基填料和涂布颜料。后来对马铃薯淀粉进行了化学改性,使其具有像所要替换的油基填料那样具有疏水性,但质量更轻。
    作为该技术的合作者之一———汽巴精化称马铃薯淀粉可以用于造纸过程,但该技术在商业应用时,其关键的成本效益是否可行还不能得到证明。VTT已经为该技术申请了3项专利。
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