May 10 2021
A research team from the Skoltech Center for Design, Manufacturing and Materials (CDMM) studied the effects of processing additives - aluminum hydroxide and zinc stearate - on the polymerization kinetics of thermosets used in pultrusion. The research was published in theJournal of Composite Materials.
纤维增强的塑料（FRP）结构元素比常规材料（例如钢，木材和混凝土）具有明显优势，在民用，海洋和道路建设中广泛使用。亚博网站下载FRP结构是使用裁缝工艺制造的，在该过程中，通过连续拉出材料来实现聚合。工程师广泛使用数学模型来优化裁缝过程，从而避免经常通过反复试验进行的昂贵实验。
为了优化裁缝工艺，应仔细考虑确定最终产品质量的许多参数，而聚合物混合物的组成就是其中之一。准确描述裁缝需要适当的树脂治疗动力学模型，具体取决于所使用的加工添加剂。如果正确选择，该模型有助于确定最高可能的拉速度。反过来，在维持所得轮廓的质量的同时最大化拉力速度对于提高效率以及裁缝过程的成本效益至关重要。
A CDMM team, including PhD student Alexander Vedernikov and MSc student Yaroslav Nasonov led by associate professor Alexander Safonov and CDMM director, professor Iskander Akhatov, proved that additives have a considerable impact on the speed of polymerization in pultrusion. The team found that the pulling speed predictions differed by as much as 1.7 times for compositions with and without additives, which had a dramatic effect on the pultrusion performance.
"Our Laboratory of Composite Materials and Structures is intensively working on process optimization in order to increase profitability while maintaining the required quality of composite structures. To do this, we apply mathematical models of manufacturing processes and validate them in experiments on industrial equipment,"Alexander Safonov解释说。
来源：http://www.skoltech.ru/