PC ML-300三菱---Ml-300 is a polycarbonate (PC) material,. Theproducts are available in North America, Europe or Asia Pacificregion. The processing method is injection molding. Iupilon ® The main characteristics of ml-300 are: low viscosity.
Iupilon ® The typical application fields of ml-300 are:Automobile Industry
工业生产的PC既有纯树脂，也有改性品种，不同的规格、型号可满足不同的用途。中国国家标准对PC的命名和型号做了规定，以黏度表征纯树脂的特征性能。在实际使用中可以根据成型方法和制品种类来选用不同型号或不同平均相对分子质量的PC。注塑成型一般选用平均相对分子质量为2万～4万的PC；挤出成型可选用相对分子质量较高的PC，通常在3万～4万以上，相对分子质量提高不但有利于挤出成型，有利于提高制品的力学性能，尤其是耐环境应力开裂性。由于PC熔体黏度大，流动性差，使成型制件的残余应力大，容易产生应力开裂。由此开发了一系列PC合金，如PC/ABS、PC/PE、PC/PP 等，其中PC/ABS合金闯世较早，应用广泛。
Industrial PC has both pure resin and modified varieties.Different specifications and models can meet different uses.Chinese national standard specifies the name and type of PC, andthe characteristic properties of pure resin are characterized byviscosity. In practical use, different types of PC or differentaverage molecular weight can be selected according to the moldingmethod and product type. PC with average molecular weight of20000-40000 is generally used for injection molding; PC with highmolecular weight can be used for extrusion molding, usually morethan 30000-40000. The improvement of molecular weight is not onlybeneficial to extrusion molding, but also to improve the mechanicalproperties of products, especially the resistance to environmentalstress cracking. Due to the high viscosity and poor fluidity of PCmelt, the residual stress of molded parts is large and stresscracking is easy to occur. A series of PC alloys were developed,such as PC / ABS, PC / PE, PC / PP, etc. among them, PC / ABS alloywas widely used.
injection Rating Unit system
drying temperature one hundred and twenty ° C
drying time 4.0 to 8.0 hr
Temperature at the back of barrel 260 to 280 ° C
Temperature in the middle of barrel 270 to 290 ° C
Temperature in front of barrel 280 to 300 ° C
Nozzle temperature 280 to 300 ° C
Mold temperature 70.0 to 100 ° C
Injection pressure 50.0 to 150 MPa
Screw speed 50 to 100 rpm