PIR-PU泡沫中三聚催化剂催化能力的研究  

Study on the Capability of Trimerization Catalyst in PIR-PU Foam

作　　者：李建平 任富建 李立辉 闫毅 

机构地区：[1]北京建工新型建材有限责任公司,北京100021

出　　处：《塑料助剂》2014年第6期49-53,共5页Plastics Additives

摘　　要：选取Cat-401、TMR-2、PC-46、PC-3963、PC-41、K-15共6种聚氨酯三聚催化剂,制备聚异氰酯-聚氨酯(PIR-PU)结构的硬质聚氨酯泡沫塑料。然后采用傅立叶红外光谱法(FT-IR)和极限氧指数(LOI)法,分别从微观上和宏观上表征了所选6种三聚催化剂催化能力的强弱。结果表明,所选6种三聚催化剂的催化能力顺序为K-15>TMR-2>Cat-401>PC-46>PC-3963>PC-41。We produced six foam samples of the structure of polyisocyanurate-polyurethane （ PIR-PU）, u- sing trimerization catalysts which included Cat - 401 ,TMR - 2, PC - 46, PC - 3963, PC - 41 and K - 15. With Fourier transform infrared spectroscopy（FT-IR） limited and oxygen index（LOI）method, from the microcosmic and macrocosmic respectively, we characterized the promoting formation ability of trimerization of 6 kinds trim- erization catalysts. The results showed that the order of 6 kinds catalysts＇ capabilitities which promoted the for- mation of trimer is K - 15 〉 TMR - 2 〉 Cat - 401 〉 PC - 46 〉 PC - 3963 〉 PC - 41.

关 键 词：聚异氰脲酸酯-聚氨酯 三聚催化剂 极限氧指数(LOI) 傅立叶红外光谱(FT-IR) 三聚体 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]