Styrene is used as a cross-linking agent in polyester o […]
Styrene is used as a cross-linking agent in polyester on the one hand and as a cross-linking agent on the other hand. The proper dilution process helps to obtain high-quality products. Generally, the dilution temperature does not exceed 95 cI=. A series of properties of the product, even the gel can not be used. The polymer contained in styrene should be as small as possible, and the polymer contained in styrene will also affect the miscibility of styrene and polyester. For example, the polymer contained in styrene More, it should be distilled and then used, and a polymerization inhibitor is added to make the content of the polymerization inhibitor in styrene between (5-15)×10I6. The polymerization inhibitor commonly used in styrene is hydroquinone. And p-tert-butyl catechol. 1.2 styrene activity
It can be seen from the structure of styrene that it is more active than other unsaturated monomers. The research chemistry is usually measured by the highest exothermic temperature. The study of the exothermic curve can qualitatively judge the properties of the product after the reaction. Good or bad. It can be seen from the exothermic curve that the reaction of styrene and polyester has the highest exothermic temperature, so the reactivity is also large, and the unsaturated polyester produced is also very good. In addition, the exothermic peak temperature is also It is related to the content of styrene in the resin. The exothermic peak temperature increases with the increase of styrene content, and also increases with the increase of unsaturation.