Development of Toughened Grade Transparent Polypropylenefor Injection Molding
Screening a toughening component that can significantly improve the impact resistance of transparent polypropylene injection plastics with random copolymerized polypropylene resinas as matrix.It improves the charpy notched impact strength(23 ℃)by 30-50％,but also reduces the rigidity and transparency performance of the resin.In order to ensure the stiffness and toughness balance performance of the material.Focus on optimizing the amount of toughened components,the addition is within the range of 2-3 wt％,the charpy notched impact strength(23 ℃)of the transparent polypropylene special material is about 6 kJ/m2,the bending modulus is above 1 000 MPa,the fog is about 10％.After the application test in the downstream processing enterprises,the processing performance is good,the comprehensive mechanical properties and optical properties of the production of plastic products fully meet the factory requirements.
random copolymerized polypropylene resin(PPR resin)transparent polypropylenehazeimpact strengthstiffness and toughness balanceprocessing performance
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