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1·Mass transfer mathematic model of carbon dioxide removal by sterically hindered amine has established.

建立了空间位阻胺脱碳的传质数学模型。

2·The effects of hindered amine light stabilizers (HALS), antioxidants on the radiation induced discoloration of polypropylene (PP) and polyethylene (PE) are studied.

结果表明五甲基HALS比相应的四甲基HALS更能有效地阻止聚烯烃的辐射致色。