科研之友
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摘要
We studied UV degradation properties of stationery commodities manufactured from recycled polypropylene. First we studied tensile stress behavior under UV ray irradiation. It was concluded that UV ray irradiation time dependence of tensile fracture energy was same as our previous results about transparent grade virgin and recycled polypropylene. Then we observed molecular mass dependence of tensile fracture energy during UV ray irradiation. It was our result that the tensile fracture energy of recycled polypropylene's products became lower than virgin polypropylene's during UV ray irradiation even if molecular mass was same.
- 出版日期2016
