加入防老剂能有效的阻止断链降解反应。
Chain degradation reaction can be prevented effectively while adding antiager.
聚丙烯在加工时受热将发生大分子断链降解，致使分子量减小，熔体指数上升。
PP will degrade due to heat during processing, resulting in chain scission of macromolecule, reduction in molecular weight and rise in MI.
聚丙烯在加工时受热将发生大分子断链降解，致使分子量减小，熔体指数上升。
PP will degrade due to heat during processing, resulting in chain scission of macromolecule, reduction in molecular weight and rise in MI.
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