Plastics that are both strong and lightweight improve the safety, performance, and convenience of a wide variety of products that we all use every single day.
The specific characteristics of just about any plastic materials can be further adjusted with special additives and coatings. When selecting a plastic for your application you will want to look closely at its technical properties, things such as:. Thermoplastic material or thermosoftening plastic is a type of plastic polymer material or plastomer that becomes pliable at elevated temperatures and becomes less so once it has cooled.
Thermoplastic materials can withstand very high temperatures so the heat required for melt processing must be even higher. Unlike thermosets, thermoplastic materials can be molded as often as is desired by cooling and reheating it, as long as the material is not overheated.
Overheating causes the material to decompose. The liquid polymer material is then fed through a die, where it is shaped into the form of a sheet, fed through a three roll stack, and cooled. Examples of this type of material include polyethylene, polypropylene, and polystyrene among others, all of which Impact Plastics extrudes. Thermoset polymers, in contrast, undergo a chemical reaction that is irreversible as they transition from liquid to solid form.
During this chemical reaction the molecules cross-link to form longer molecular chains causing the material to solidify permanently. Examples of this type of material include epoxy, polyester, polyurethane, silicone and polyamide.
Thermosets can offer improved mechanical properties such as, enhanced chemical resistance, heat resistance and structural integrity in thin and thick wall applications. When thermoplastics undergo the transition from liquid to solid state, no chemical reaction takes place and the change seen in these materials is purely physical, not chemical. This process bonds the paint or coating to the surface, offering better adhesion to prevent chipping, cracking or flaking even when exposed to harsh weather conditions.
This makes in-mold coatings of thermosetting materials ideal for such applications as construction machinery or other material that needs to withstand extreme conditions. Thermoplastics can be found in virtually any industry with products ranging from milk jugs to piping systems. As thermoplastics are capable of withstanding corrosive conditions, they work well as a substitute for metals, but cannot withstand high temperatures as well as thermosets.
Offering an excellent combination of chemical resistance, structural robustness and thermal stability, thermosetting polymers are widely used throughout a range of industries, as they offer an economical means to meet many production specifications. Page Contents. What is Thermoplastic? What is Thermosetting Plastics? What are examples of Thermoplastic and Thermosetting plastics? Join Us on Telegram. Leave a Reply Cancel reply Your email address will not be published.
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