Journal of Polymers / 2016 / Article / Tab 1

Research Article

Weatherability of Polypropylene by Accelerated Weathering Tests and Outdoor Exposure Tests in Japan

Table 1

Attributes of polypropylene (PP) used in weathering experiments.

CodeMolecular structureAdditive formulationMFR, g/10 minMelting temperature, °CHeat of fusion, J/g

PP homopolymerStandard7.4166122
PP homopolymerWeather resistant7.1167112
PP copolymerStandard3.316694
PP copolymerWeather resistant3.4166105
PP copolymerStandard8.5167100
PP copolymerWeather resistant8.8167101

Antioxidant was melt-mixed.
Antioxidant and light stabilizer were melt-mixed.
Melt flow rate (MFR) was measured at 230°C and 2.16 kg.

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