Polypropylene/polystyrene alloy and method of producing the same
A polystyrene and polypropylene technology, applied in the field of polypropylene/polystyrene alloy and its preparation, can solve the problems of poor printability, low hardness, low shrinkage rate, etc., and achieve good comprehensive mechanical properties, high surface gloss, good compatibility
Active Publication Date: 2009-04-08
SHANGHAI KINGFA SCI & TECH +1
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The invention relates to a polypropylene/polystyrene alloy and a preparation method thereof. The polypropylene/polystyrene alloy is characterized by consisting of raw materials with the following weight portions: 40 portions of polypropylene, 60 portions of polystyrene, 5 portions to 40 portions of modifier, 0.4 portion to 1.2 portions of nucleating agent, 5 portions to 30 portions of fillings, 0.5 portion to 1.5 portions of antioxidant and 2.5 portions to 10 portions of processing aid. The preparation method comprises the steps: firstly, polypropylene, polystyrene and white mineral oil or silicon oil are mixed together in a high-speed mixer, added and fully mixed with a composite modifier, modified fillings, the antioxidant and the processing aid, and extruded for granulation from a combined twin-screw extruder at temperatures of 190 DEG C to 210 DEG C. The polypropylene/polystyrene alloy has quite good surface glossiness and good comprehensive performance and can replace acrylonitrile-styrene-butadiene copolymer.
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Property | Measurement | Unit |
Tensile strength | 35.0 | mPa |
Flexural modulus | 1300.0 | mPa |
Tensile strength | 30.0 | mPa |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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