Rubber and plastic products are industrial and consumer products made primarily from rubber and plastic. They are widely used in sealing, shock absorption, insulation, and protection applications. Their performance is closely related to their primary ingredients, and different formulations of rubber and plastic materials vary in hardness, elasticity, and weather resistance.
Rubber is one of the core materials in rubber and plastic products. Natural rubber (polyisoprene) and synthetic rubber (such as styrene-butadiene rubber, butadiene rubber, and chloroprene rubber) are common types. Natural rubber has excellent elasticity and tear resistance, but poor oil and heat resistance. Synthetic rubber is chemically modified to enhance specific properties. For example, nitrile rubber offers strong oil resistance, while fluororubber offers high-temperature and chemical resistance. Rubber products often also contain additives such as vulcanizing agents (such as sulfur), accelerators, and antioxidants to improve processing performance and service life.
Plastic components primarily include thermoplastics (such as polyethylene, polypropylene, and polyvinyl chloride) and thermosetting plastics (such as epoxy resins and phenolic resins). Polyethylene (PE) and polypropylene (PP) are commonly used in the manufacture of films and containers due to their low cost and strong corrosion resistance. Polyvinyl chloride (PVC), whose hardness is adjusted by plasticizers, is suitable for pipes, cable sheathing, and other applications. Thermosetting plastics, upon curing by heating, form an infusible, insoluble network structure, offering high heat resistance and mechanical strength, making them suitable for electronic device packaging and industrial components.
Additionally, fillers (such as calcium carbonate and carbon black), plasticizers (such as phthalates), and stabilizers (such as lead salts and organotin) are often added to the formulations of rubber and plastic products to optimize costs, enhance physical properties, or improve environmental adaptability. For example, carbon black improves rubber's abrasion resistance and UV resistance, while plasticizers increase plastic's flexibility.
In summary, the performance of rubber and plastic products is determined by both the base polymer (rubber or plastic) and additives. Through strategic formulation, high-performance materials can be created to meet the needs of diverse applications, promoting the sustainable development of industry and daily life.