For a long time, car manufacturers have put the improvement of the comfort in the car in a very important position. Recently, the smell and smoke in the car body, especially the smell and smoke in the car body, are listed as a new criterion for judging comfort or not. Therefore, in the new car production, the scent caused by the volatilization and atomization of the cushion foam is being strictly reviewed by the manufacturer.
The OSI polyurethane auxiliary agent department of Connpton has developed a series of low volatile foam additives, including zero -volatile high -efficiency unusamine catalysts and low -atomic silicon surface activity Prevention. This series of new catalysts belongs to the high -relative molecular quality polyine catalyst. Among them, there are gel catalysts that promote polyol and isocyanate reactions, as well as foam catalysts that can promote water and isocyanate reactions. These catalysts can not only delay the reaction and improve the openability of the foam, but also keep the wet aging performance of foam products. There are three new gel catalysts with NIAX. The EF-602 is a medium-active gel catalyst, and its ability to delay the reaction is the est. In most formulas, it can be used alone, but the amount is relatively high. After the EF-602 is shared with another foam catalyst, it can extend the milky time and make the foam reaction relatively stable; its special end structure makes the foam a good openness and excellent physical properties. The other two catalysts of this series UAX-1180 and EF-600 have the same active ingredients as EF-602, which can be used in formulas with lower raw activity.
There are also three types of new unusamine foam catalysts, of which EF-708 is the main product, it is more suitable for combination with gel catalysts such as EF-602, which can improve the foam not only to increase the foam The stability when rising makes the bubble well open. EF-705 has a delayed response capacity, which can extend the milky time and improve the openability. When the milk time is required to be relatively short, especially when it is used for pouring processes, the EF-700 catalyst is better.
The traditional MDI system foam contains a low -relatively molecular -quality organic silicon compound in the surface active agent. These organic silicon volatilization leads to atomization phenomenon. To this end, Connpton has developed a new type of organic silicon consecutive composite L-3415, which contains polytyornes-containing lively base groups, which can maintain the perfect balance between the stability of the foam and the openness. For the bubble of the TDI system, the company has developed surfactants L-3555. These new types of surfactants reduce the atomization of the foam.
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