nylon66 resins good dimension stablity,chemical resistence,toughness low water contant. strictly testing

Performance Index

item          unit    test standard    Condition      engineering plastic grade          

                                                  HYS26A  HYS27A

                                                                        Physical&chemical properties  

Relative viscosity  Meq/Kg    QB     dissolved        2.62±0.03  2.70±0.03        

-NH2            Meq/Kg    QB     dissolved        46±3      50±3               

-COOH          Meq/Kg    QB     dissolved        72±4       68±4              

Black Specks      %         QB     dry             ≤0.018     ≤0.018             

Water Content     ppm   GB/12006.2-89 dry            Excellence≤1500 

                                                   Qualified≤2000     

Mechanical Properties  

Tensile strength    MPa     ISO527    dry              75.2      74.8                 

Tensile modulus    GPa     ISO527    dry              1.76     2.12                 

Elongation,at break  %      ISO527    dry              38.8      42.8                 

Flexural strength   MPa     ISO178    dry              60.5      63.6                 

Flexural modulus  GPa      ISO178    dry              1.4       1.41                 

Charpy impact strength        

                             KJ/    ISO179/leU dry               unbroken         

Charpy notched       KJ/    ISO179/leA dry              6.12      6.42                   

Izod notched impact strengrh  

                              KJ/    ISO180/1A  dry             5.1       5.1                 

     

Nylon 66