Thermoplastics are the sub-group of polymers. Thermoplastics has distinctive properties around other polymers and because of these properties, they constitutes a specific class of polymers. In here, we explain a characteristic of thermoplastic polymers; degradation.
In most basic explanation, thermosplastics’ most distinct property is; when heated to liquid state, then can be cooled to solid state. This cycle is avaliable for thermoplastics. But for thermosettings which are the other class of polymers, there is no situation of melting. They burned when they heated to elevated temperatures.
Cross-linking molecular structure leads the situation of thermosettings. But there is no cross-linking molecular structure occurs for thermoplastics, when they heated up to elevated temperatures. Thermoplastics has linear or branched type of molecules that leads to cycle of heating or cooling property.
But in real, there is a term of ‘thermal aging’ for thermoplastics. Thermoplastics degrade gradually with these thermal cycles. As you know that, lots of scratches are produced from thermoplastic polymer processes. These scratches can be used in other processes, but they are not considered as ‘virgin’ material, which refers the material’s first process. Because of this degradation of thermoplastics, quality decreases. In some applications, virgin thermoplastics are required. But for lots of other processes, re-cycled thermoplastics can be used.
So in theory, thermoplastics can be re-cycled. But in real, there is a rate of degradation for thermoplastics that are recycled.
Degradation of thermoplastics over recycling processes can be summarized like above. Do not forget to leave your comments and questions about ‘degradation of thermoplastics’ below. Your precious feedbacks are very important for us.