Presently,Nanometer Plastic has become a popular point in the plastic science and technolohy.It has interested many enterprises in plastic industry,some enterprises have put their production in the name of “Nanometer”so that to raise their level and fame even they have no conception of nanometer.
    Nanometer material subject is absolutely a new science risen in recent years,it involves multidomains of knowledge such as aggregation physics,chemistry,material,and biology etc.This article will only introduce some general knowledge for nanometer plastic.
    Firstly we should understand nanometer,then nanometer technique and nanometer plastic last. Nanometer is a unit of length as a standard of measurement,its dimension is 10^-9 meter.
    Generally nanometer material means that the dimension of a phase between two phases in the microstructure must be nanometer level.Nanometer granule has a very small diameter ,its surface energy is very strong and it becomes aggregate very easy.so this is a very complex technical problem to get nanometer granule.Presently the nanometer granule which can be made and used is inorganic nanometer gronule mostly.The nanometer granules which can modify plastic effectively are Sio₂ , Tio₂,Caco₃ and montmorillonite (MMT)etc.
    The core contents of nanometer technique is that how can solve a problem for its aggregate . It is very difficult to get single and dispersive nanometer granule as it is aggregated of itself very easy and the key of the nanometer technique is to disperse and homogenize the nonometer granule to a matrix.There are two ways that can industrialize nanometer material according to the report of application and research for nanometer technique.One is the bedded insertion technique, that means to make the base granule which has certain solid density and equal size with n-MMT processed by bedded insertion , then mix and granulate it so that can solve the problem which nanometer material is not homogeneous to disperse and get compound nanometer material;Two is to use vibratory mill dispersion to homogenize nanometer material in matrix,its aggregat is not formed in main and the dispersion is in nanometer level.
    Nanometer plastic means that the matrix must be macromolecular polymer.Nanometer plastic has been improved for heat resistance,climate proof and abrasion resistance by the way that nanometer granule is dispersed in plastic resin fully . Nanometer plastic can get the rigidity and heat resistance that it is like ceramics and also has original property of plastic as tenacity and high impact resistance . Now NPE、NPET、and NPA6 modified by nanometer granule can be industrialized . To put and steady silver(Ag⁺)into microporousness on surface of nonometer granule can get carrying silver nanometer material which has bacteria resistance property and to put this material into plastic can make the plastic material that has some good property as bacteria resistance , mildew resistance and selfleaning etc . and it can become green environmental protection product . Now this technique has been applied in ABS,SPVC,HIPS,PP etc.
    Nanometer plastic is a sort of new material in high technology,it has bright development prospects.Many manufacturer begin to produce nanometer plastic in a situation that not complete quality guarantee systm and production management and also they are lacking in knowledge of this new material . That will engender danger that nanometer plastic comes to a premature end . So we hope the government concerned can make a complete standard and rules to protect the development of this new material.