R530和R530A的比较2005年 8月 5日（株）晓星 PP市场开垦TEAM Quality Problems It used to occur crack on bottom of bottle and increase of bacteria in parenteral liquid. v Bad processing conditions ; uneven thickness, stressed products, asymmetric shape, etc. v Low impact resistance of material(resin)q Bad productivity v Big gap of processing conditions between existing low MI resin (XF1800 & ST612, MI=2.0) and R530 (MI=78) v Low MI shows more wide processing condition range.Properties Differences between R530 & R530AGra deMechanical PropertiesHa zeMelt Inde xIzod Impa ct Stren gthUS P Cla ss VITensi le Stren gthFlexu ral Modu lusHar d- nes s Unitkg/c m2kg/c m2%g/10 minkg / R53 02959,8007170. 57.44.9O.KR53 0A30010,50 07570. 12.06.5O.KRem arkNo differencesGap 33% Melt Index is the reason of flowability difference between R530 and R530A. When replace R530(High MI) with R530A (Low MI), processing operators should increase injection temperature and blowing temperature only a little.USP Class VIProduction Practices of R530 & R530A Maker : K company (China) Application : 500ml Infusion BottleR530AR530Remarks (XF1800) Production Rate (at blowing) (at Retorting)94.1% (96%) (98%)92.2% (95%) (97%)92.1% (98%) (94%) Crack Percentage during transportation0%0.30.5%0%Processing Temp (at Injection) (at Blowing)10 up same225 -