1. The main component of plastic raw materials is not graphite, but rather synthetic or natural polymers. Graphite is a form of carbon and is not typically used in the production of plastics.
2. Plastic raw material refers to a substance primarily composed of polymer synthetic resin (polymer), which is mixed with various additives or auxiliary materials. Under specific temperature and pressure conditions, it exhibits plasticity and fluidity, allowing it to be molded into a desired shape. Once cooled or hardened, it retains that shape, making it suitable for a wide range of applications.
3. A polymer is a large molecule formed by the chemical combination of many smaller units, known as monomers. These can be naturally occurring, like cellulose or rubber, or man-made, such as polyethylene or polystyrene. Polymers are often referred to as high molecular weight materials due to their complex structure and unique properties.
4. Plastic is an excellent insulator for electricity, heat, and sound. It offers good electrical insulation, resistance to electric arcs, thermal insulation, and soundproofing capabilities. Additionally, it can absorb sound and reduce vibrations, making it ideal for use in noise control and acoustic applications.
Plastics are widely used in daily life and industry because of their versatility, durability, and cost-effectiveness. They come in many forms, including thermoplastics, thermosets, and elastomers, each with different characteristics suited to specific uses. Understanding the composition and properties of plastics helps in selecting the right material for the job.
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